Alerta

CARBON COMPOSITE MATERIAL

Absstract of: EP4793233A1

A carbon composite material configured to suppress a decrease in the charge and discharge capacity of batteries, the carbon composite material comprising Si and a carbon material having an aspect ratio of 2.7 or more and 7.5 or less.

RECHARGEABLE BATTERY AND METHOD OF MANUFACTURING THE SAME

Absstract of: EP4794065A1

A manufacturing method for a rechargeable battery (1), the manufacturing method including manufacturing a case (10) having an opening on a first side, inserting an electrode assembly (30) into the case (10) through the opening, and coupling a cap assembly (50) to the first side, wherein manufacturing the case (10) includes manufacturing a first intermediate material (10') having an internal accommodation space (11) and an open first side, manufacturing a second intermediate material (10") by forming a plurality of holes (1130) on a second side opposite to the first side of the first intermediate material (10'), and coupling a first electrode terminal (150) to the second side of the second intermediate material (10").

CARBON COMPOSITE ANODE

Absstract of: EP4794015A1

An anode configured to decrease the rate of expansion in thickness direction which is due to battery charge and discharge, the anode comprises an anode collector and an anode layer on at least one surface of the anode collector; the anode layer comprises a carbon composite material comprising Si and a carbon material having an aspect ratio of more than 1; the carbon composite material is carbon composite material particles; and wherein, of the carbon composite material particles contained in the anode layer, a percentage of first carbon composite material particles that an angle θ formed by the surface of the anode collector and a line of the carbon composite material particles in long axis direction is 0° or more and less than 45°, is more than 52%.

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND ELECTRODE USING SAME

Absstract of: EP4794028A1

A nonaqueous electrolyte secondary battery includes a first electrode, a second electrode, a nonaqueous electrolyte, and a separator provided between the first electrode and the second electrode. The first electrode includes a first current collector and a first active material layer supported on the first current collector. The first active material layer contains a first active material, a binder, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200°C or higher and 500°C or lower. In a cross section of the first active material layer, the polymer material forms a plurality of island-shaped regions and is dispersed therein. When the first active material layer is increased in temperature from 25°C to 400°C or higher, the area of the island-shaped regions increases to four times or more in the cross section of the first active material layer.

THERMALLY CONDUCTIVE INTERFACE DESIGN

Absstract of: US2025121536A1

0000 A thermally conductive interface device produced from a thermally conductive interface material is disclosed. The device may be employed in a battery system of an electric or hybrid vehicle. The thermally conductive interface material comprises a composition of at least one silicone base, at least one inorganic filler, at least one silicone oil, a least one peroxide cross-linking agent, and/or at least one of a flame retardant and a colorant. The inorganic fillers and/or the silicone oils may be functionalized or non-functionalized. The silicone base may be a high consistency rubber (HCR) silicone.

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND ELECTRODE USED THEREFOR

Absstract of: EP4794030A1

A nonaqueous electrolyte secondary battery includes a first electrode, a second electrode, a nonaqueous electrolyte, and a separator provided between the first electrode and the second electrode. The first electrode includes a first current collector and a first active material layer supported on the first current collector. The first active material layer contains a first active material, a binder, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200°C or higher and 500°C or lower. The polymer material has a linear structure.

BATTERY PACK

Absstract of: EP4794089A1

0001 A battery pack (100) includes an elastic body (20) on a portion of each of the inner surfaces (12a) of a pair of lid parts (12). The pair of lid parts (12) are secured to the respective end surfaces of a battery block (2) housed in the housing space of a casing body (11). A gap (GP) is formed between each of the pair of lid parts (12) and an edge (11a) of a corresponding open end of the casing body (11). The lid part (12) includes: a lid body (13) that is a flat board; and a wall part (14) projecting from the inner surface of the lid body (13). The elastic body (20) is disposed to abut a surface of the wall part (14) that faces the inner surface of the casing body (44). The elastic body (20) includes an inclined surface (21) flaring out toward the inner surface of the lid part (12). A portion of the inclined surface (21) enters the gap (GP). A corner portion (19) of the casing body (11) that is located between an edge (11a) of the open end of the casing body (11) and the inner surface (11b) of the casing body (44) abuts the inclined surface (21).

IMPREGNATED FABRIC FOR USE IN BATTERY CELLS

Absstract of: WO2025076807A1

A cured fabric that is useful in batteries can be made by impregnating a PET fabric with a binder emulsion that contains a self-crosslinking acrylic polymer binder and an anionic surfactant, which contains (1) a lipophilic moiety and (2) an anionic hydrophilic moiety that is linked to the lipophilic moiety by an oxygenated organic moiety. The combination of the binder and anionic surfactant provides fast wetting of the fabric. The impregnated fabric is cured by heating to crosslink the acrylic polymer. The resulting cured fabric has high tensile strength and good wetting ability with acid solutions used in batteries.

EXTERIOR MATERIAL AND BATTERY CELL COMPRISING SAME

Absstract of: EP4794069A1

0001 A battery cell according to an embodiment of the present invention may include: an electrode assembly in which a positive electrode and a negative electrode are alternatingly interposed with a separator therebetween; and a pouch-type exterior including an accommodation portion that is recess-formed to accommodate the electrode assembly. The accommodation portion may include a center region; and a pair of end regions located on opposite sides of the center region, having a depth dimension smaller than a depth dimension of the center region, and being asymmetric to each other.

BATTERY MODULE MANUFACTURING METHOD

Absstract of: EP4794093A1

0001 Disclosed is a battery module manufacturing method including (S1) a step of receiving a cell assembly including a plurality of secondary batteries in a module frame, (S2) a step of locating the module frame at a cover frame seated on a folding jig, and (S3) a step of folding the cover frame such that the cover frame wraps around a part of an outer surface of the module frame through the folding jig, wherein, in step (S2), a first protrusion and a second protrusion provided on edges of both sides of the folding jig are inserted into a first hole and a second hole formed in edges of both sides of the cover frame, respectively.

BATTERY SYSTEM

Absstract of: EP4794061A1

0001 According to exemplary embodiments of the present disclosure, there is provided a battery system. The battery system includes: a battery pack having a cooling flow path at an upper part and a venting passage at a lower part; and a battery pack stack in which a plurality of the battery packs are stacked vertically. Such a battery system can efficiently cool and then discharge high-temperature flammable gas, thereby preventing thermal runaway and thermal propagation between battery modules or between battery packs.

METHOD FOR ASSEMBLING AN ELECTRIC BATTERY PACK

Absstract of: WO2025078700A1

The invention relates to a method for assembling an electric battery pack (1), comprising the following steps: - providing a rack (3) that defines a plurality of open recesses (5); - providing at least one set of cells (13) comprising a plurality of electrochemical cells (15) and a plurality of spacers (17) separating the electrochemical cells (15) from one another; and - inserting the at least one set of cells (13) into one of the recesses (5); characterised in that compressible spacers (17) are provided, and in that the at least one set of cells (13) is compressed in order to be able to insert the at least one compressed assembly (13) into one of the recesses (5), so that the at least one compressed assembly (13) remains compressed.

APPARATUS FOR FIRING CATHODE MATERIAL OF SECONDARY BATTERY

Absstract of: EP4793582A1

An apparatus for calcining a positive electrode material of a secondary battery comprises a temperature rising section extending in a first direction of a horizontal direction, a temperature maintaining section connected to the temperature rising section and extending in the first direction, and a cooling section connected to the temperature maintaining section and extending in a second direction different from the first direction in the horizontal direction.

NEGATIVE ELECTRODE ACTIVE MATERIAL AND METHOD FOR PRODUCING SAME

Absstract of: EP4794024A1

0001 The present invention is a negative electrode active material containing negative electrode active material particles, in which the negative electrode active material particles contain a porous carbon structure, silicon and silicon oxide are dispersed in an interior of the porous carbon structure, a low-valent nano silicon oxide in an amorphous state is dispersed at least in a surface layer portion of the interior of the porous carbon structure, the low-valent nano silicon oxide is SiOx, where "x" is less than 1.0, and nano silicon having a crystalline structure is dispersed in the interior of the porous carbon structure, at least in a deep layer portion that is deeper than the low-valent nano silicon oxide. This provides the negative electrode active material capable of increasing capacity thereof while maintaining battery characteristics.

BATTERY PACK, STRUCTURE, AND METHOD FOR MANUFACTURING MICA PLATE

Absstract of: EP4794086A1

0001 Provided is a battery pack including a mica plate that is resistant to damage and is lightweight. The battery pack of the present invention includes a module with a plurality of battery cells; a case containing the module; and a mica plate disposed between the module and the case and having a first main face and a second main face opposite to the first main face, the battery pack further including a fixing member to fix the mica plate, the mica plate having a first fixing member hole penetrating from the first main face to the second main face, at least one of the module or the case having a second fixing member hole, the fixing member including a head and a body extending from the head, the body of the fixing member passing through the first fixing member hole into the second fixing member hole, thereby fixing the mica plate, the head, in a planar perspective view of the mica plate, covering at least a part of an outline of the first fixing member hole and overlapping the mica plate, an overlapping area, denoted as area S1, between the head and the mica plate being not less than 5.8 × 10<-6> times an area S2 of the mica plate.

LOWER CASE AND CASE HAVING SAME, BATTERY PACK, AND ELECTRIC DEVICE

Absstract of: EP4794082A1

0001 A lower case (10) and a case (100) having same, a battery pack (1000), and an electric device (10000), The lower case (10) is used for the battery pack (1000), and the lower case (10) comprises: a bottom plate (11) extending in a first direction within a horizontal plane, wherein two side edges of the bottom plate (11) in a second direction within the horizontal plane are provided with first connecting portions, the first connecting portions are used for connecting an upper case (20) of the battery pack (1000), and the first direction intersects with the second direction; and first side plates (12), wherein there are two first side plates (12) respectively arranged at two ends of the bottom plate (11) in the first direction, the first side plates (12) are vertically arranged, and the lower ends of the first side plates (12) are fully welded to the bottom plate (11).

BATTERY AND ELECTRIC DEVICE

Absstract of: EP4794078A1

0001 Disclosed are a battery and an electric device. The battery comprises a case; battery cell rows, each comprising a plurality of battery cells arranged in a first direction, wherein the plurality of battery cell rows are stacked in a second direction to form a battery cell array and are placed in the case; and a thermal management part disposed on the sides of the plurality of battery cells in a third direction for heat exchange with the battery cells, wherein the first direction, the second direction, and the third direction are perpendicular to each other.

FE-NI ALLOY CURRENT COLLECTOR HAVING LOW RESISTANCE MULTILAYER STRUCTURE AND SECONDARY BATTERY COMPRISING SAME

Absstract of: EP4794033A1

0001 The present invention relates to a current collector that has a Fe-Ni alloy formed on at least one surface of a core part composed of copper foil and which exhibits low resistance and high strength while improving corrosion resistance when used as a current collector of a secondary battery to which lithium ions and a lithium metal negative electrode or a sulfide-based solid electrolyte are applied.

ENERGY STORAGE ELEMENT

Absstract of: WO2025078530A1

The invention relates to an energy storage element (100) comprising an electrode-separator assembly (104) of strip-shaped electrodes and at least one band-shaped separator, having the sequence anode (105)/separator (156)/cathode (108), which is in the form of a cylindrical winding in which the anode (105), the separator (156) and the cathode (108) are wound around a winding axis A. The anode (105) and the cathode (106) each comprise a current collector (106, 109) with a strip-shaped main region (107, 110) covered with electrode material and a free edge strip (106b, 109b) along a longitudinal edge (106a, 109b) which is not covered with the electrode material. They are arranged inside the electrode-separator assembly (104) such that the free edge strip (106b) of the anode current collector (106) emerges from a first terminal end face (104a) and the free edge strip (109b) of the cathode current collector (109) emerges from a second terminal end face (104b) of the winding. A sheet-metal contact part (112) sits on one of the edge strips (106b, 109b), covers the end face (104a, 104b) from which this edge strip emerges, and is integrally connected to this edge strip. The current collector, on the edge strips (106b, 109b) of which the sheet-metal contact part (112) sits, is arranged in a spiral shape in the cylindrical winding and has an outer turn (181) with a maximum radius R1. The sheet-metal contact part (112) has a maximum radial extension Emax on the end face (104a, 104b) cover

PRODUCTION OF BATTERY CELLS BY MEANS OF ARRESTER EXTENSIONS

Absstract of: WO2025078684A1

The invention relates to a method for producing a battery cell, having at least two battery poles arranged on opposite sides, wherein at least one electrode stack having a multiplicity of anode foils and cathode foils, which are separated from one another by separator foils, is provided, wherein the anode foils have anode arresters at their ends and the cathode foils have cathode arresters at their ends, wherein the anode arresters of the anode foils are bundled at a first side and the cathode arresters of the cathode foils are bundled at a second side of the electrode stack, the bundled anode arresters and/or cathode arresters are connected in an electrically conductive manner at least regionally by means of at least one arrester extension, the at least one electrode stack provided with at least one arrester extension is inserted into a cell housing, the anode arresters are connected directly or indirectly to a collector of a first battery pole in an electrically conductive manner via the at least one arrester extension and the cathode arresters are connected directly or indirectly to a collector of a second battery pole in an electrically conductive manner via the at least one arrester extension, and wherein the cell housing is closed by the first battery pole and the second battery pole. The invention also relates to a battery cell.

A METHOD OF MANUFACTURING POROUS SILICON

Absstract of: CN122003383A

A method of making porous silicon includes providing magnesium silicide with silica nanoparticles and silica microparticles, or by providing magnesium with silica nanoparticles and silica microparticles. Any of the mixtures is then heated to a maximum of 500 DEG C.

BATTERY AND ELECTRIC DEVICE

Absstract of: EP4794077A1

Disclosed in the present invention are a battery and an electric device. The battery comprises: a case; battery cell rows each comprising a plurality of battery cells arranged in a first direction, wherein the plurality of battery cell rows are stacked in a second direction to form a battery cell array and placed in the case; and an elongated component, wherein at least one elongated component is provided on the surface of the side of the battery cell rows facing away from a bottom plate of the case in a third direction, the elongated component extends in the first direction and is connected to at least one battery cell in the battery cell rows, and the first direction is perpendicular to both the second direction and the third direction.

BATTERY UNIT AND BATTERY PACK INCLUDING SAME

Absstract of: EP4794062A1

The present disclosure provides a battery unit including: a plurality of battery cells stacked in one direction; side plates disposed at both end sides in the stacking direction of the plurality of battery cells; a band member connected to at least one of mutual upper ends and mutual lower ends of the side plates; and a plurality of adhesive members positioned between the band member and the plurality of battery cells and bonded to the band member and the plurality of battery cells, wherein the plurality of adhesive members is formed spaced apart from each other, and a cooling flow path is formed between the spaced plurality of adhesive members.

BATTERY MODULE AND BATTERY PACK COMPRISING SAME

Absstract of: EP4794092A1

0001 A battery module according to exemplary embodiments may include battery cells, a module frame, and a first thermal barrier, wherein the module frame may accommodate the battery cells, and the module frame includes a top plate including vent holes, and the first thermal barrier may be disposed between the battery cells and the top plate.

BATTERY BOX, MANUFACTURING METHOD FOR BATTERY BOX, BATTERY AND ELECTRIC DEVICE

Absstract of: EP4794081A1

A battery box (100), a manufacturing method for the battery box (100), a battery (1100) and an electric device, the battery box (100) comprising a first box body (110). The first box body (110) comprises a plate component (111), one side of the plate component (111) being provided with an accommodating space (1101) for accommodating a battery cell (200). The plate component (111) comprises a plate body portion (1111) and a first bent portion (1112), wherein the first bent portion (1112) is bent towards the accommodating space (1101) from the edge of the plate body portion (1111). The fillet radius at the bend of the edge of the plate component (111) is small, so that the width dimension of the first box body (110) can be reduced, thereby reducing the width dimension of the battery box (100); thus, the space occupied by the battery (1100) in the electric device can be reduced, facilitating improvement to the structural compactness and usage performance of the electric device.

SECONDARY BATTERY AND ELECTROCHEMICAL DEVICE

Absstract of: EP4794041A1

0001 An embodiment of the present application provides a secondary battery and an electrochemical device. The secondary battery includes an electrode assembly, where the electrode assembly is a flat wound structure, the electrode assembly includes a first electrode sheet, a second electrode sheet, and a separator, the separator is disposed between the first electrode sheet and the second electrode sheet, and an innermost electrode sheet of the electrode assembly is the first electrode sheet; where a length of the electrode assembly is denoted as L, a width of the electrode assembly is denoted as W, a thickness of the electrode assembly is denoted as H, meeting 0.9 ≤ L/W ≤ 1.1 and H ≤ 3 mm, the electrode assembly further includes an adhesive layer, an innermost turn of the first electrode sheet includes a first straight segment, a first bent segment, a second straight segment, and a second bent segment connected sequentially, the first electrode sheet has a first surface facing a winding core of the electrode assembly, and at least a portion of the adhesive layer is disposed on the first surface of the first straight segment and/or the first surface of the second straight segment. The technical solution according to some embodiments of the present application can improve the safety performance and cycling performance of the secondary battery.

ELECTROLYTE SUITABLE FOR SODIUM ION BATTERY AND SODIUM ION BATTERY

Absstract of: EP4794047A1

The present invention relates to an electrolyte suitable for sodium-ion batteries and a sodium-ion battery. To solve the problem of poor room-temperature cycling performance, rate performance, and high-low temperature performance of sodium-ion batteries, the present invention provides an electrolyte suitable for sodium-ion batteries, comprising an electrolyte salt, an organic solvent, and an additive, wherein the organic solvent comprises a carbonate solvent, a fluorinated carboxylate solvent and a fluorinated benzene solvent, and the carbonate solvent does not include ethylene carbonate. The present invention improves the room-temperature cycling performance, rate performance, and high/low temperature performance of sodium-ion batteries through the synergistic cooperation of the carbonate solvent, the fluorinated carboxylate solvent, and the fluorinated benzene solvent.

ANHYDROUS IRON PHOSPHATE AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, AND SECONDARY BATTERY

Absstract of: EP4793231A1

0001 Provided is an anhydrous ferric phosphate and a preparation method thereof, a cathode electrode material and a preparation method thereof, a cathode electrode sheet, and a secondary battery, belonging to the field of a secondary battery. In terms of weight percentage, a quantity proportion of particles with a particle size greater than or equal to 0.01 µm and less than 0.1 µm in primary particles of the anhydrous ferric phosphate is 10%-30%, a quantity proportion of particles with a particle size of 0.1 µm-0.2 µm is 50%-60%, a quantity proportion of particles with a particle size greater than 0.2 µm and less than 0.4 µm is 15%-30%, and a quantity proportion of particles with a particle size of 0.4 µm-0.6 µm is 0.2%-10%. The present disclosure is beneficial for obtaining a well-dispersed anhydrous ferric phosphate by controlling particle gradation, which serves as a basis for preparing a highly compacted cathode electrode material and is advantageous for obtaining a cathode electrode material with high compact density, good rate performance, and high charging and discharging efficiency.

SUPPORTING SYSTEM FOR SUPPORTING A BATTERY ELONGATED STRUCTURE

Absstract of: SE2351182A1

SUMMARYA supportive system (140) is described, for supporting an elongated structure (130). The system comprises a first holding element (201) and a second holding element (202). The first element (201) features a receiving section (211) and a locking section (212) with a locking member (220), mating depression (221), and a groove (240) spanning both sections. This groove (240) has distinct profiles in the two sections. The second element (202) has a rim (250) and a beam (230) with a cantilevered hook (231). The rim (250) fits into the groove (240) and the hook (231) into the depression (221) of the first element (201). Together, they embrace the structure (130). The second element (202) slides from the receiving to the locking section, with the rim (250) and hook (231) aligning with the corresponding features of the first element (201).

BATTERY MANAGEMENT SYSTEM

Absstract of: EP4794166A1

0001 A system for managing battery performs bidirectional charge/discharge active cell balancing of a plurality of battery cells using a single converter, thereby reducing the number of components required for active cell balancing and achieving cost and size reduction of the system for managing battery.

COATING MECHANISM AND COATING DEVICE

Absstract of: EP4792942A1

Provided in the present application are a coating mechanism and a coating device. The coating mechanism comprises a coating head and an acceleration mechanism, the coating head being provided with an accommodating cavity, and the cavity wall of the accommodating cavity being provided with a feeding opening and a discharging opening. At least part of the acceleration mechanism is located in the accommodating cavity. The acceleration mechanism is configured to split in the first direction a slurry stream entering from the feeding opening, the first direction intersecting with a discharging direction of the discharging opening. The slurry enters the accommodating cavity of the coating head through the feeding opening and is coated onto an electrode sheet by means of the discharging opening. Using the part of the acceleration mechanism inside the accommodating cavity can raise the flow speed of the slurry in the accommodating cavity, i.e. using an active mode to raise the flow speed of the slurry in the accommodating cavity, thereby solving the problem of slurry accumulation in accommodating cavities.

CONNECTOR, BATTERY, ELECTRICAL DEVICE, AND ENERGY STORAGE DEVICE

Absstract of: EP4794132A1

0001 Provided in the present application are a connector (400), a battery (100), an electrical device, and an energy storage device. The connector (400) comprises a plug (410) and a protective cover (420), the protective cover (420) being provided with an accommodation cavity (421), an opening portion (422) being formed at the cavity opening of the accommodation cavity (421), and the plug (410) being accommodated in the accommodation cavity (421). When the plug (410) is inserted into a plugging port (31), the opening portion (422) covers a socket (30), such that the plugging port (31) is located inside the accommodation cavity (421). With respect to the connector (400) provided in the embodiments of the present application, the protective cover (420) can cover the plug (410) to achieve the purposes of dustproofing and waterproofing, and moreover, the opening portion (422) of the protective cover (420) can cover the socket (30) and provide covering protection for the plugging port (31) of the socket (30), thereby effectively reducing the probability of water seepage at the plugging port (31), and further improving the reliability of the connector (400) and the plugging port (31).

NEGATIVE ELECTRODE SHEET, BATTERY CELL AND ELECTRIC DEVICE

Absstract of: EP4794003A1

A negative electrode sheet, a battery cell and an electric device. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer arranged on at least one side of the negative electrode current collector; the negative electrode film layer comprises at least one negative electrode active material layer containing a negative electrode active material, one of the at least one negative electrode active material layer comprises a first area and a second area, and in the thickness direction of the negative electrode sheet, the first area at least covers the two ends of the negative electrode current collector in a first direction; the thickness direction is perpendicular to the first direction; the second area and the first area are continuously arranged in the first direction, the second area is sandwiched in the first area, and the second area covers part of the negative electrode current collector in the thickness direction; the compaction density of the negative electrode active material located in the first area is Ag/cm³, the compaction density of the negative electrode active material located in the second area is Bg/cm³, and B/A<1.

PREPARATION METHOD FOR LITHIUM IRON PHOSPHATE, POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE PLATE, BATTERY, AND POWER-CONSUMING DEVICE

Absstract of: EP4793232A1

Provided are a preparation method for lithium iron phosphate, a positive electrode active material, a positive electrode plate, a battery, and a power-consuming device. The preparation method for lithium iron phosphate comprises: dissolving a first iron source, a second iron source, a lithium source and a phosphorus source in a solvent to obtain a mixed slurry; and sintering the mixed slurry to obtain lithium iron phosphate, wherein the first iron source comprises at least one of iron oxide or first iron phosphate, and the second iron source comprises at least one of second iron phosphate or ferrous oxalate, the first iron phosphate has an iron to phosphorus ratio of 0.97-0.985, and the second iron phosphate has an iron to phosphorus ratio of 0.93-0.96. The primary particles of lithium iron phosphate, which have different particle sizes, can be mixed and matched, thus improving the compaction density of lithium iron phosphate and the energy density of the battery.

POSITIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRIC DEVICE

Absstract of: EP4794026A1

0001 The present application relates to a positive electrode active material and a preparation method therefor, a positive electrode sheet, a secondary battery, and an electric device. The positive electrode active material comprises an active substance; the active substance comprises a lithium nickel manganese oxide; the lithium nickel manganese oxide comprises a spinel phase; in an X-ray diffraction analysis pattern of the lithium nickel manganese oxide, there is a first diffraction peak at a diffraction angle 2θ of 18° to 19° and a second diffraction peak at a diffraction angle 20 of 44° to 45°; the first diffraction peak corresponds to a crystal face (111), and the second diffraction peak corresponds to a crystal face (400); the peak intensity of the first diffraction peak is I<(111)>, the peak intensity of the second diffraction peak is I<(400)>, and I<(111)> and I<(400)> satisfy: 2.5 ≤ I<(111)>/I<(400)> ≤ 4.0; and the lithium nickel manganese oxide satisfies the chemical formula LiMNiMn<2-y-z>O<4-k>, wherein 0.8 ≤ x ≤ 1.05, 0 ≤ y ≤ 0.2, 0.3 ≤ z ≤ 0.7, -0.1 ≤ k ≤ 0.5, and M comprises one or more of B, Si, P, S, Nb, Mo, Ru, Te, Ce, Ta, and W.

ELECTRODE SHEET, SECONDARY BATTERY, ELECTRIC DEVICE, PREPARATION METHOD, AND REUSE METHOD

Absstract of: EP4794002A1

An electrode sheet, a secondary battery, an electric device, a preparation method, and a reuse method. The electrode sheet comprises a current collector and multiple active material layers located on at least one side of the current collector; the multiple active material layers comprise a first active material layer and a second active material layer, wherein the second active material layer is the active material layer farthest from the current collector, and the first active material layer is located between the second active material layer and the current collector, and comprises current collector particles.

BUSBAR, BATTERY PACK, AND VEHICLE

Absstract of: EP4794108A1

0001 A vehicle (1) having a battery pack (10), the battery pack (10) having a busbar (200). The busbar (200) comprises: a non-conductive sealing pressing plate (2003), a first connecting component (2001), and a second connecting component (2002). The first connecting component (2001) is disposed at a first end of the non-conductive sealing pressing plate (2003), and the second connecting component (2002) is disposed at a second end of the non-conductive sealing pressing plate (2003), the first connecting component (2001) being electrically connected to the second connecting component (2002).

SECONDARY BATTERY AND ELECTRONIC DEVICE

Absstract of: EP4794049A1

0001 This application discloses a secondary battery and an electronic device. The secondary battery includes a packaging bag, an electrode assembly, a first tab, a first insulation tape, and a second insulation tape. The electrode assembly is accommodated in the packaging bag. The first tab is electrically connected to the electrode assembly and protrudes out of the packaging bag along a first direction. The electrode assembly assumes a jelly-roll structure and includes a first end surface, a first side surface, a first curved surface, and a second side surface. The first side surface, the first curved surface, and the second side surface are disposed around a periphery of the first end surface. The first insulation tape includes a tape body and a first protruding portion. The tape body is bonded to the first side surface, the first curved surface, and the second side surface separately. The first protruding portion exceeds a negative electrode plate of the electrode assembly along the first direction. The first protruding portion includes a first section and a second section. The second insulation tape is bonded to the first end surface, the first section, and the second section separately. In this way, this application can improve the hot box test pass rate of the secondary battery.

BATTERY PACK, AND ESS AND VEHICLE INCLUDING THE BATTERY PACK

Absstract of: EP4794096A1

A battery pack according to an embodiment of the present invention includes a module assembly including a plurality of battery modules each including, on a side, a module opening through which venting gas is discharged, a pack cover facing the module opening and configured to cover the side of the module assembly, and an oxygen introduction preventing member located in a space formed between the module assembly and the pack cover and configured to prevent oxygen from being reversely introduced after venting gas is discharged in an extension direction of the space.

BATTERY ASSEMBLY AND ELECTRICAL APPARATUS

Absstract of: EP4794083A1

0001 The present application relates to the technical field of batteries, and in particular to a battery assembly and an electrical apparatus. The battery assembly includes: a battery, including a top surface, a bottom surface, and side surfaces; and a separation structure wrapped around an outer side of the battery, the separation structure including a first conductive layer and an insulating separation layer. The first conductive layer covers at least part of the bottom surface of the battery and at least part of the side surfaces of the battery. The insulating separation layer includes a separation main body portion and a pulling portion connected to the separation main body portion. A tear guide structure is provided between the separation main body portion and the pulling portion, the separation main body portion covers the first conductive layer and is connected to the first conductive layer, and the pulling portion is bonded to the top surface of the battery. The pulling portion is configured such that, when a pulling force is applied to the pulling portion, the pulling portion is separated from the top surface of the battery, and the first conductive layer on the side surfaces of the battery is exposed at the battery. At least part of the insulating separation layer is formed of a conductive release adhesive. The technical solution provided in the present application can effectively solve the problem in the related art of the battery being difficult to remove from

ELECTROLYTE INJECTION SYSTEM AND ELECTROLYTE INJECTION METHOD

Absstract of: EP4794113A1

0001 An electrolyte injection system (100) and an electrolyte injection method. The electrolyte injection system (100) comprises an electrolyte injection device (110), an upper computer (120) and a control device (130), wherein the electrolyte injection device (110) comprises at least one electrolyte injection pump (111); the control device (130) is configured to send to the upper computer (120) pump information of a target electrolyte injection pump (111a) currently to be subjected to electrolyte preparation in the electrolyte injection device (110); the upper computer (120) is configured to: acquire pump information from the control device (130), determine, on the basis of the pump information and from among bearing positions of a battery cell tray currently entering the electrolyte injection device (110), a target bearing position currently corresponding to the target electrolyte injection pump (111a), determine, on the basis of a first correlation, a target electrolyte injection parameter corresponding to the target bearing position, with the first correlation comprising electrolyte injection parameters respectively corresponding to at least one bearing position, and issue the target electrolyte injection parameter to the target electrolyte injection pump (111a); and the target electrolyte injection pump (111a) is configured to perform electrolyte preparation according to the target electrolyte injection parameter, and after electrolyte preparation, perform electrolyte

BATTERY CELL, BATTERY, ELECTRIC DEVICE, AND ENERGY STORAGE APPARATUS

Absstract of: EP4794072A1

0001 A battery cell (20), a battery (100), an electric device, and an energy storage apparatus. The battery cell (20) comprises a casing (21). The casing (21) comprises a shell (211) and an end cover (212). An opening (211a) is formed in the shell (211). The shell (211) comprises a first wall (24). The first wall (24) comprises a first opening part (241) and a first body part (242) sequentially arranged in a first direction (Z). The first direction (Z) is parallel to the thickness direction of the end cover (212). The first opening part (241) is close to an opening (211a) with respect to the first body part (242). The end cover (212) is welded to the first opening part (241) to seal the opening (211a). The first opening part (241) comprises a plurality of first thickening areas (241a) and at least one first transition area (241b). The plurality of first thickening areas (241a) are arranged at intervals in a circumferential direction of the opening (211a). Two adjacent first thickening areas (241a) are connected by means of the first transition area (241b). The maximum thickness of the first thickening areas (241a) is greater than the thickness of the first body part (242), and the maximum thickness of the first thickening areas (241a) is greater than the thickness of the first transition area (241b). The present application can improve the reliability of the battery cell (20).

BATTERY, ELECTRIC DEVICE AND ENERGY STORAGE DEVICE

Absstract of: EP4794102A1

0001 A battery (10), an electric device and an energy storage device. The battery (10) comprises: a battery cell (20); a busbar component (12), wherein the busbar component (12) is used for electrically connect to an electrode terminal (214) of the battery cell (20); and an insulating component (13), the insulating component (13) comprising a main body portion (131) and an extending portion (132) that are connected to each other, wherein the main body portion (131) is attached to the surface of the busbar component (12) that is away from the battery cell (20), and the extending portion (132) is located at an end of the busbar component (12) that is close to the battery cell (20). The extending portion (132) is closer to a first surface relative to the main body portion (131), wherein the first surface is the surface of the battery cell (20) that is close to the electrode terminal (214). In this way, when thermal runaway occurs in the battery cell (20), the configuration of the insulating component (13) can reduce the impact of high-temperature gas and conductive particles which are released by the battery cell (20) on the busbar component (12), thereby reducing the influence on the performance of the busbar component (12), such that the usage performance of the battery (10) is improved.

INTUMESCENT COATINGS

Absstract of: EP4793325A2

Intumescent coating compositions comprising TiO₂ in an amount of 5-20 wt %, a phosphate source in an amount of 20-55 wt %, based on total solid weight and a borate source, aluminum source and/or silica source, are disclosed, as are methods for using such compositions and substrates coated with same.

IMMERSION-COOLED BATTERY MODULE, AND BATTERY PACK AND VEHICLE INCLUDING SAME

Absstract of: EP4794109A2

0001 An immersion cooled battery module according to an embodiment of the present disclosure includes a plurality of sub battery modules; a module case having an opening in at least one end, and accommodating the plurality of sub battery modules and a cooling liquid in an internal space connected to the opening; a sealing cover air-tightly covering the opening; a plurality of circuit boards corresponding to the plurality of sub battery modules, received in the internal space and configured to sense electrical signals related to the plurality of sub battery modules; and a waterproof connector coupled to the sealing cover, and configured to transmit the electrical signals respectively sensed by the plurality of circuit boards to an external device outside of the module case.

SECONDARY BATTERY AND ELECTRIC APPARATUS

Absstract of: EP4794048A1

0001 The present application provides a secondary battery and an electric apparatus, the secondary battery including an electrode assembly, and the electrode assembly being a jelly-roll structure, where the electrode assembly includes a positive electrode plate, a negative electrode plate, a first separator, and a second separator; the first separator includes a first base film and a first ceramic coating, the first ceramic coating being disposed on at least one side of the first base film, the first ceramic coating including first ceramic particles, and the first ceramic particles including at least one of aluminum oxide, zirconium dioxide, titanium dioxide, or silicon dioxide; and the second separator includes a second base film and a second ceramic coating, the second ceramic coating being disposed on at least one side of the second base film, the second ceramic coating including second ceramic particles, and the second ceramic particles including boehmite. Through the above disposition, the secondary battery can balance energy density, cycling performance, and safety performance.

HEAT DISSIPATION SYSTEM AND ENERGY STORAGE SYSTEM

Absstract of: EP4794462A1

0001 This application provides a heat dissipation system and an energy storage system. The heat dissipation system includes a container body and a heat management module, where the heat management module is disposed in the container body. A partition plate in the container body separates the container body into a temperature control chamber and a control chamber. The temperature control chamber is located above the control chamber. The heat management module includes at least two compressors, at least two water pumps, a plate heat exchanger component, and an electric control box that are located in the control chamber. The compressors and the electric control box are sequentially disposed in a width direction, the plate heat exchanger component and the water pumps are sequentially disposed in the width direction, and the electric control box and the water pumps are disposed sequentially in a length direction. The compressors and the water pumps are separately connected to the plate heat exchanger component, and the compressors and the water pumps are separately connected to the electric control box. The heat management module further includes a liquid cooling unit located in the temperature control chamber, and the plate heat exchanger component and the electric control box are separately connected to the liquid cooling unit. The heat dissipation system in this application can implement water-electricity isolation and a multi-heat management system, so that heat management

ELECTROLYTE INJECTION SYSTEM AND ELECTROLYTE INJECTION METHOD

Absstract of: EP4794112A1

0001 An electrolyte injection system (100) and an electrolyte injection method. The electrolyte injection system (100) comprises an electrolyte injection device (110), an upper computer (120), and a control device (130). The electrolyte injection device (110) is used for injecting an electrolyte into a battery cell in a battery cell electrolyte injection process. The upper computer (120) is used for: acquiring electrolyte injection data of the battery cell after battery cell electrolyte injection is completed, and locally recording the electrolyte injection data of the battery cell as historical electrolyte injection data; determining a first battery cell set placed in a battery cell tray that currently enters the electrolyte injection device (110); on the basis of the local historical electrolyte injection data, determining from among the first battery cell set a second battery cell set, electrolyte injection of which has not been completed; determining from among the second battery cell set a target battery cell set to be subjected to electrolyte injection; and sending to the control device (130) the position of each target battery cell in the target battery cell set in the battery cell tray. The control device (130) is used for controlling the electrolyte injection device (110) to perform electrolyte injection on the target battery cell set on the basis of the position corresponding to each target battery cell.

DIE-CUTTING METHOD AND DIE-CUTTING MACHINE

Absstract of: EP4792950A1

0001 A die-cutting machine (10), comprising an unwinding mechanism (11), a cutting mechanism (12), a visual detection system (13) and a winding mechanism (14), which are sequentially arranged in a conveying direction of an electrode sheet, wherein the visual detection system is used for collecting an image of the current electrode sheet that has been cut, and the cutting mechanism is used for cutting the next electrode sheet in a first marking mode when a detection result of the current electrode sheet indicates that the current electrode sheet has a defect, the detection result of the current electrode sheet is determined on the basis of the image of the current electrode sheet, a cutting position corresponding to the next electrode sheet is used as an end position of the current battery electrode sheet section and a starting position of the next battery electrode sheet section, and the length between the starting position of the next battery electrode sheet section and a starting position of the current battery electrode sheet section is less than the length of one battery electrode sheet section. Further provided is a die-cutting method. The die-cutting machine shortens the length of an electrode sheet that does not meet standards, reduces the possibility of electrode sheet waste, and achieves the aim of saving on electrode sheets, thereby reducing the manufacturing cost of batteries, and improving the productivity of the device.

BATTERY MANAGEMENT SYSTEM AND MANAGEMENT METHOD

Absstract of: EP4794282A2

0001 The present invention relates to battery system comprising a switching unit (14) configured to control a current flow for a battery; a battery pack (1) including a group of battery cells being monitored by a lower-level battery management system; an upper-level battery management system (100) for the battery pack; wherein the lower-level battery management system monitors a battery status by sensing temperature, voltage, or current of a battery module or cell and transmit monitored information to the upper-level battery management system; wherein the upper-level battery management system receives battery status information and transmit information to an upper-level control unit or transmit information obtained by determining a battery status based on the received information to the upper-level control unit; a channel change unit configured to handle wireless communication channels between the lower-level and the upper-level battery management systems; wherein, for maintaining continuity of communications through wireless communication channels, the channel change unit periodically changes wireless communication channels to perform communications through a second communication channel for a preset time period which is different from a first communication channel; a communication interface performs communications with the outside of the battery system; and a memory in which programs relating to battery management process are recorded.

BATTERY MODULE COMPRISING COOLING MEMBER AND BATTERY PACK AND POWER STORAGE DEVICE

Absstract of: EP4794103A2

0001 Disclosed is a battery module that reduces the risk of secondary ignition or explosion and increases durability against external impacts. The battery module includes a plurality of secondary batteries respectively having a gas venting portion for discharging a gas generated therein to the outside at a predetermined pressure and arranged in a front and rear direction in two rows; and a cooling member including a body portion interposed between two rows of the plurality of secondary batteries and having a size corresponding to left and right sides of the plurality of secondary batteries, and a gas discharge portion provided to at least one of an upper portion and a lower portion of the body portion and having a gas discharge passage elongated from a front end to a rear end of the body portion.

BATTERY PACK HAVING CUT-OFF PROTECTION FUNCTION, AND ENERGY STORAGE SYSTEM

Absstract of: EP4794052A1

This application provides a battery pack with a breaking protection function and an energy storage system. The battery pack includes a battery module including a plurality of single cells, a breaking device connected in series to the battery module, a current sensor, and a controller. A first end of the current sensor is connected to a positive output end of the battery pack, and a second end of the current sensor is connected to a negative output end of the battery pack, to detect a current difference between the positive output end and the negative output end of the battery pack. The controller is configured to: when the current difference detected by the current sensor is greater than a first threshold, control the breaking device to be turned off, to quickly cut off a fault when the short-circuit to ground fault occurs in the cell in the battery pack, so as to ensure safe operation of the entire energy storage system.

SYSTEM AND METHOD FOR INDIVIDUAL CHARGING CELLS OF A BATTERY

Absstract of: EP4794169A2

A method for maintaining a power source (60) can include selecting, by a controller module (90), a rechargeable power storage device (62) from a set of power storage devices (62) arranged to selectively provide a summated output of the power source (60), and selectively enabling, by the controller module (90), the selected power storage device (62) to discharge its stored power at the output of the power source (60). The controller module (90) can compare a sensed voltage of the selected power storage device (62) with a minimum voltage threshold.

BATTERY AND ELECTRIC DEVICE

Absstract of: EP4794111A1

0001 A battery (100) and an electric device. The battery (100) comprises: a battery pack (10), comprising a first battery column (11) and a second battery column (12), which are arranged in a first direction (X), wherein the first battery column (11) and the second battery column (12) each comprise a plurality of battery cells (200) sequentially arranged in a second direction (Y), the first direction (X) intersecting the second direction (Y); a busbar assembly (20), comprising a first busbar member (21) and a second busbar member (22), wherein the first busbar member (21) is connected to the battery cells (200) of the first battery column (11), and the second busbar member (22) is connected to the battery cells (200) of the second battery column (12); and a separator (30), wherein in the first direction (X), at least part of the separator (30) is located between the first busbar member (21) and the second busbar member (22). The battery can improve its own reliability, thus reducing the risk of short circuits.

EXPLOSION-PROOF VALVE PATCH, COVER PLATE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Absstract of: EP4794091A1

The embodiments of the present disclosure belong to the technical field of batteries. Provided are an explosion-proof valve patch, a cover plate assembly, a battery cell, a battery and an electric device. The explosion-proof valve patch comprises a patch body; a first rubber ring arranged on a first surface of the patch body and provided with a first gap; and a second rubber ring arranged on the first surface of the patch body, located on an inner side of the first rubber ring, and provided with a second gap, the first gap and the second gap being staggered.

CASING, BATTERY AND ELECTRIC DEVICE

Absstract of: EP4794080A1

0001 A casing, a battery and an electric device, which relate to the technical field of batteries. The casing comprises a casing wall (1), load-bearing members (3) and connecting members (4), wherein an accommodating cavity (2) is formed by the casing wall (1) by means of enclosure, and is provided with first connecting holes (111); the first connecting holes (111) penetrate the casing wall (1) in the direction of thickness of the casing wall (1); the load-bearing members (3) are provided in the accommodating cavity (2); the connecting members (4) extend into the accommodating cavity (2) by means of the first connecting holes (111) so as to be detachably connected to the load-bearing members (3) to fix the casing wall (1) and the load-bearing members (3); and a connecting structure is provided on the side of each connecting member (4) facing the outside of the accommodating cavity (2), and is configured to be connected to a target device.

ENERGY STORAGE SYSTEM AND CONTROL METHOD FOR ENERGY STORAGE SYSTEM

Absstract of: EP4794156A1

The present application provides an energy storage system and a control method for the energy storage system, applied to the technical field of energy storage. The energy storage system comprises a plurality of battery clusters and a plurality of control units, and the battery clusters are in one-to-one correspondence with the control units. Each control unit is used for: when a battery parameter is not lower than a first battery parameter, controlling the corresponding battery cluster to discharge at constant current; and when the battery parameter is lower than the first battery parameter, controlling the corresponding battery cluster to charge at constant current, wherein the first battery parameter is a battery parameter when the capacity of the battery cluster reaches a safe capacity lower limit. By controlling the battery clusters meeting conditions in the energy storage system to charge or discharge at the same constant current, the output power or input power of the energy storage system reaches the maximum power that the energy storage system can currently reach.

ENERGY STORAGE SYSTEM SWITCHING MANAGEMENT METHOD

Absstract of: EP4794159A1

0001 Disclosed in the present invention is an energy storage system switching management method, comprising: determining a working state of each battery system on the basis of the current of each battery system, wherein the working state includes a static state, a charging state and a discharging state; for the battery systems in the static state, carrying out static open-circuit voltage calibration on the battery systems; for the battery systems in the charging state, carrying out switching management on the charging process of each battery system on the basis of the total battery voltage or the state of charge of each battery system; and for the battery systems in the discharging state, carrying out switching management on the discharging process of each battery system on the basis of the total battery voltage or the state of charge of each battery system. Therefore, according to the present invention, different working states can be accurately distinguished, and then corresponding switching management is carried out on the basis of different working conditions, so that the efficiency is relatively high, and the effect of switching management is good.

SECONDARY BATTERY AND ELECTROCHEMICAL DEVICE

Absstract of: EP4794064A1

0001 Some embodiments of this application provide a secondary battery and an electrochemical device. The secondary battery includes an electrode assembly and a shell. The shell is configured to accommodate the electrode assembly. The shell includes a first wall and a second wall opposite to each other along a thickness direction of the electrode assembly. The first wall is provided with a first protruding portion that protrudes toward an inside of the shell. The shell further includes a third wall. The third wall connects the first wall and the second wall. The third wall is spaced apart from the electrode assembly along a first direction. The first direction is perpendicular to a thickness direction of the electrode assembly. Along the thickness direction of the electrode assembly, a dimension of an inner surface of the third wall is L<1>, a thickness of the electrode assembly is L<2>, and a height by which the first protruding portion protrudes beyond an inner surface of the first wall is L<3>, satisfying: L<3> > L<1> - L<2>. The technical solutions provided herein can improve the reliability and safety performance of the secondary battery.

BATTERY MANAGEMENT APPARATUS AND METHOD FOR MONITORING ABNORMALITIES IN BATTERY DIELECTRIC COOLANT, AND IMMERSION-TYPE ENERGY STORAGE DEVICE UTILIZING THE SAME

Absstract of: EP4794053A1

0001 An immersion-type energy storage device includes, a housing having an accommodation space therein, one or more battery cells accommodated in the accommodation space of the housing, insulating oil that fills the accommodation space to immerse the battery cells and cool the battery cells, a temperature sensor array including a plurality of temperature sensors installed at different locations that are vertically spaced apart in the accommodation space to detect temperature, and a battery management apparatus configured to determine whether a defect has occurred in the insulating oil based on whether a pattern of a temperature signal detected by the plurality of temperature sensors has changed over time.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Absstract of: EP4794042A2

0001 The present application discloses a secondary battery (100) and an electronic device. A first current collector (211) is provided with a first foil-free zone (211a). A first tab (30) includes a first portion (31) and a second portion (32) that are connected to each other. The first portion (31) is disposed on the first foil-free zone (211a). The second portion (32) extends out of a first electrode sheet (21). A first adhesive layer (50) is bonded between the first foil-free zone (211a) and the first portion (31). The first tab (30) includes a first surface (30a) and a second surface (30b) that are oppositely arranged. The first surface (30a) of the first portion (31) is provided with a plurality of first protrusions (30c). The first adhesive layer (50) is partially embedded between two adjacent first protrusions (30c). The second surface (30b) of the first portion (31) is provided with a plurality of second protrusions (30d). Along a first direction (Z), projections of at least one of the second protrusions (30d) at least partially overlap with projections of the first protrusions (30c), and/or projections of at least one of the second protrusions (30d) are located between projections of two adjacent first protrusions (30c). The connection process between the first tab (30) and the first current collector (211) can be simplified, energy density can be increased, and the connection strength between the first tab (30) and the first current collector (211) can be improve

IMPROVED BATTERY MODULE AND IMPROVED BATTERY PACK

Absstract of: EP4794098A1

0001 Battery pack (1) comprising a housing (2) defining a space (S) for housing at least a battery module (3), the battery module (3) comprising a support system (4) defining a space (S') for housing a plurality of battery cells (10) and a venting system (4) defining a venting channel (V) fluidly connected to the space (S'), the housing (2) comprising venting means (23) configured to allow selectively communication between said space (S) and the environment, the battery pack (1) comprising a labyrinthic system (30) fluidly connecting the venting channel (V) to venting means (23), the labyrinthic system (30) providing an obliged path for a flow (F) for gas/flames igniting from any among the battery cells (10) towards the venting means (23) of a predetermined length.

METHOD AND SYSTEM FOR CHARGING MOBILE ENERGY STORAGE CELLS

CHARGING DEVICE

Absstract of: EP4794164A1

System zum Versorgen von Akkumulatoren, insbesondere als Energiespeicher einer Werkzeugmaschine, mit elektrischer Energie.Erfindungsgemäß enthält das System wenigstens eine Regel- und Steuereinheit mit wenigstens einer Eingangsschnittstelle zur Aufnahme elektrischer Energie, wenigstens einer Ausgabeschnittstelle zur Abgabe elektrischer Energie, wenigstens einen Gleichrichter, wenigstens eine erste mit der Regel- und Steuereinheit wenigstens elektrisch verbindbaren Anschlusseinrichtung zum Versorgen wenigstens eines ersten und zweiten Akkumulators mit elektrischer Energie sowie eine zweite mit der Regel- und Steuereinheit wenigstens elektrisch verbindbaren Anschlusseinrichtung zum Versorgen wenigstens einer Aufbewahrungseinheit mit elektrischer Energie, wobei jede Aufbewahrungseinheit wenigstens eine Akku-Schnittstelle zum Versorgen wenigstens eines Akkumulators mit elektrischer Energie enthält.Verfahren zum Steuern und Regeln des Systems zum Versorgen von Akkumulatoren mit elektrischer Energie.

COMPOSITE MATERIAL AND METHOD FOR PRODUCING A COMPOSITE MATERIAL

Absstract of: EP4793034A1

0001 The present invention relates to a composite material (1), in particular for thermal insulation of a rechargeable battery and/or for preventing damage in case of a thermal runaway of a rechargeable battery, preferably a traction battery of an electric vehicle. The composite material (1) has two textile layers (2,3), wherein one of the layers a nonwoven fabric (2), in particular a veil, and one of the textile layers is a woven fabric (3), and wherein the nonwoven fabric layer (2) is completely penetrated with a ceramic penetration medium (4), whereby the woven fabric layer (3) is partly penetrated with the ceramic penetration medium (4). 0002 According to a further aspect, the present invention relates to a method for producing the composite material.

CONTROL SYSTEM

Absstract of: EP4793082A1

A control system includes: a communication device that acquires information indicating the step currently being performed in a vehicle in the manufacturing process of the vehicle; a server that determines the mode of ripple heating control based on the information acquired by the communication device; and a vehicle control unit that performs ripple heating based on the mode determined by the server.

BATTERY PACK AND VEHICLE INCLUDING THE SAME

Absstract of: EP4794063A1

0001 The present disclosure refers to a battery pack, including a battery pack housing; a battery cell stack including a plurality of rechargeable battery cells, wherein the battery cell stack is accommodated within the battery pack housing; a liquid release system positioned above the rechargeable battery cells, wherein the liquid release system is configured to release a liquid toward the rechargeable battery cells when a release condition is detected; and a retention structure being configured for retaining the liquid released by the liquid release system, wherein the retention structure is in direct contact with an outer surface of the rechargeable battery cells.

ACCUMULATOR CELL AND LEAD ACCUMULATOR

Absstract of: EP4794051A1

Die Erfindung betrifft eine Akkumulatorzelle für einen Bleiakkumulator, mit einem Zellengehäuse (2) und einem das Zellengehäuse (2) fluiddicht verschließenden Zellendeckel (3), wobei innerhalb des Zellengehäuses (2) einander abwechselnd positive und negative Elektrodenplatten (5, 4) sowie ein die Elektrodenplatten (5, 4) umgebender Elektrolyt angeordnet sind, wobei die positiven und die negativen Elektrodenplatten (5, 4) jeweils an wenigstens einen gemeinsamen Pol (10, 11; 8, 9) mittels jeweiliger Polbrücke (7, 6) elektrisch angeschlossen sind und wobei der positive Pol (10, 11), der über die zugehörige Polbrücke (7) mit den positiven Elektrodenplatten (5) verbunden ist, aus einer Bleilegierung in Form von Hartblei gebildet ist, dadurch gekennzeichnet, dass die Polbrücke (7), die die positiven Elektrodenplatten (5) mit dem positiven Pol (10, 11) verbindet, aus Reinblei gebildet ist, und dadurch, dass eine Rückhalteeinrichtung vorgesehen ist, die dazu eingerichtet ist, vom positiven Pol (10, 11) abgeplatzte Partikel aufzufangen und so einen Kontakt der Partikel mit den Elektrodenplatten (5, 4) zu verhindern.

BATTERY CELL COVER PLATE, BATTERY CELL, AND BATTERY PACK

Absstract of: EP4794088A1

A cell cover plate, a cell, and a battery pack are provided by the present disclosure. The cell cover plate includes a cover plate body. The cover plate body includes a top surface and a bottom surface opposite to each other. The cover plate body is provided with a liquid injection hole. The liquid injection hole penetrates through from the top surface to the bottom surface. The bottom surface is configured to face a cell pack, at least a partial region on the bottom surface is configured as a flow guiding surface. The flow guiding surface is adjacent to the liquid injection hole. The flow guiding surface is inclined from the liquid injection hole in a direction away from the top surface.

LOW-IMPEDANCE STORAGE BATTERY

Absstract of: EP4794085A1

Provided in the present invention is a low-impedance storage battery, which comprises: an accommodation case, which is internally provided with an accommodation space; a first energy storage module, which is used for accumulating or supplying electric energy and is provided in the accommodation case; and a second energy storage module, which is used for storing or supplying a short-time large current and is provided in the accommodation case, the first energy storage module and the second energy storage module being electrically connected to each other. The second energy storage module at least comprises a circuit board, the circuit board having a second positive electrode and a second negative electrode. One side of the accommodation case is provided with a first electrical connector and a second electrical connector. One end of the first electrical connector and one end of the second electrical connector pass out of the accommodation case, and the other end of the first electrical connector and the other end of the second electrical connector are located in the accommodation case. The second positive electrode and the second negative electrode on the circuit board of the second energy storage module are respectively fixed at one end of the first electrical connector and one end of the second electrical connector in the accommodation case.

BATTERY, BATTERY PACK AND ENERGY STORAGE SYSTEM

Absstract of: EP4794110A1

0001 This application provides a battery, a battery pack, and an energy storage system. The battery includes a housing, an electrode assembly, a Mylar film, an insulating porous film, and a bottom tray. The electrode assembly, the Mylar film, the insulating porous film, and the bottom tray are all accommodated in the housing. A bottom surface of the electrode assembly, the Mylar film, the insulating porous film, and the bottom tray are sequentially stacked, and the insulating porous film on the bottom surface includes a plurality of through holes. The through hole of the insulating porous film can reduce flow of dust that falls off from the electrode assembly between the electrode assembly and the housing, and reduce a possibility that a micro short circuit is formed between the bottom surface of the electrode assembly and the housing.

BATTERY PACK HAVING MULTIPLE CONTACT POINTS AT POSITIVE AND NEGATIVE TERMINALS

Absstract of: EP4794090A1

The present application relates to the technical field of new energy batteries, and in particular to a battery pack with multiple contact points for positive and negative terminals, which includes a battery pack housing, chutes are defined on two side walls of the battery pack housing, battery-side contact elements are located in the chutes, ribs for insertion into the chutes are arranged on a device housing of a charging and discharging device, and tool-side contact elements for cooperating with the battery-side contact elements are arranged on the ribs.

CYLINDRICAL BATTERY AND ELECTRONIC DEVICE

Absstract of: EP4794050A1

0001 This application discloses a cylindrical battery and an electronic device. The cylindrical battery includes a housing and an electrode assembly. The electrode assembly is disposed in the housing. The electrode assembly includes a first electrode plate. The first electrode plate includes a first blank foil portion. The first blank foil portion is formed of a first part and a second part. The first part extends along a winding direction of the electrode assembly. The second part is formed by bending the first blank foil portion toward such a direction that a terminating end of the first electrode plate is closer to a first end wall. The second part is connected to the first part and the first end wall of the housing. A region of connection between the second part and the first end wall is a first region. A first edge is formed at a junction between the first part and the second part. The first part includes a second edge and a third edge. The first edge intersects the third edge to form a first fold point. A minimum distance between the first end wall and the second end wall is H, an inner radius of a circumferential wall of the housing is R, and a minimum distance from the first fold point to the first region is L<1>, satisfying H + R ≤ L<1>. By providing the second part, this application improves the lifespan of the cylindrical battery.

PROTECTIVE PLATE, BATTERY BOX, BATTERY MODULE, AND BATTERY PACK

Absstract of: EP4794084A1

The present application provides a protective plate, a battery box, a battery module, and a battery pack. The protective plate includes a first protective layer, a reinforcement layer, a buffer layer, and a second protective layer stacked along a first direction. The reinforcement layer and the buffer layer are stacked between the first protective layer and the second protective layer. The buffer layer includes multiple first buffer grooves and multiple second buffer grooves, the multiple first buffer grooves and the second buffer grooves are arranged on two opposite sides of the buffer layer, and the multiple first buffer grooves and the multiple second buffer grooves are distributed in a staggered manner.

SECONDARY BATTERY, BATTERY PACK AND ELECTRONIC DEVICE

Absstract of: EP4794070A1

Disclosed are a secondary battery (100), a battery pack (1002), and an electronic device (1000). The secondary battery (100) includes: a housing (200), including an end wall (111) and a side wall (109) surrounding the end wall (111), the end wall (111) having an opening portion (111V); an electrode assembly (120), including positive and negative electrode sheets (10, 20) and a separator (122); an electrode terminal (160), passing through the opening portion (111V) and fixed on the end wall (111); and a current collecting plate (202), disposed between the electrode assembly (120) and the end wall (111) and electrically connecting the electrode assembly (120) and the electrode terminal (160). Along a radial direction of the electrode assembly (120), the electrode assembly (120) includes a first region (Ra) and a second region (Rb). A minimum distance between a surface of the current collecting plate (202) facing the electrode assembly (120) and a first end (16u) of a negative electrode active material layer (16) along a first direction (D1) is L_A mm, L_A mm ≥1.5 mm.

PASSIVELY COOLED MODULAR BATTERY POWER STATION

Absstract of: WO2025096234A1

A battery power station including a top panel, a base, and side panels which define a structure, and a first removable end panel and a second removable end panel. The battery power station includes an electronics compartment within the structure including at least one printed circuit board, and a battery compartment within the structure configured to receive a battery pack module. The base includes lateral protrusions having a hook structure configured to interdigitate with corresponding hook structure of the side panels forming a seal between the base and the side panels. The first and second removable end panels include a shell having protrusions extending from an inner surface of the shell and around a periphery of the shell, the protrusions configured to create a seal with the structure forming a seal between the structure and the first and second removable end panels.

MULTIFUNCTIONAL POLYNORBORNENE BINDER SYSTEM

Absstract of: US2025118756A1

A cathode electrode assembly is disclosed, the cathode electrode assembly comprising an active material, a current collector, a conductive additive substance, and a polynorbornene-based (PNB) polymer binder configured to bind the active material and the conductive additive substance and maintain electrical contact between the active material and the conductive additive substance with the current collector. An alternative cathode electrode assembly comprising active material, a current collector, a conductive additive substance, a PNB polymer binder, and at least one polyacrylic acid (PAA) side chain configured to interface with the PNB polymer binder is also disclosed. A functional group is further disclosed, the functional group being configured to interface with a binder in a cathode electrode assembly of an electric battery system, the functional group comprising at least one PAA side chain.

ACCUMULATOR COVER FOR AN ACCUMULATOR, AN ACCUMULATOR EQUIPPED THEREWITH AND A METHOD FOR PRODUCING THE ACCUMULATOR COVER

Absstract of: WO2025076568A2

The invention relates to an accumulator cover (3) for an accumulator (1). The accumulator cover (3) comprises: - a cover plate (9) with an outer side (11) and an inner side (13) and a through-opening (16) that penetrates the cover plate (9) between the outer side (11) and the inner side (13); - a rivet (17) that projects through the through-opening (16) of the cover plate (9); - a pole plate (18), wherein the pole plate (18) is arranged on the outer side (11) of the cover plate (9) and is electrically conductively coupled to the rivet (17); - a separating plate (19), wherein the separating plate (19) is arranged on the outer side (11) of the cover plate (9) between the pole plate (18) and the cover plate (9). A current collector (20) is designed as a component independent of the rivet (17), wherein the current collector (20) is electrically conductively coupled to the rivet (17).

SEPARATOR, ELECTROCHEMICAL APPARATUS WITH SEPARATOR AND ELECTRICAL APPARATUS

Absstract of: EP4794046A1

0001 A separator includes a base film and an organic coating disposed on at least one surface of the base film. In a 10µm×5µm region of the organic coating, based on a mass of the organic coating, a mass percentage of a carbon element in the organic coating is W1, a mass percentage of a fluorine element in the organic coating is W2, and 0.45 ≤ W1/W2 ≤ 6. The separator further includes an inorganic coating, the inorganic coating is disposed between the base film and the organic coating, the inorganic coating has a thickness of d3, the base film has a maximum pore size of r1, and 0.01 ≤ r1/d3 ≤ 0.21.

ELECTRODE SHEET, SECONDARY BATTERY AND ELECTRONIC DEVICE

Absstract of: EP4794105A1

An electrode sheet (100), a secondary battery (500), and an electronic device (1000) are provided. The electrode sheet (100) includes: an electrode sheet body (160), including a current collector (110) and an active material layer (130), the current collector (110) has two opposite surfaces, and the two surfaces are respectively coated with active material layers (130); and a tab (150), extending from the electrode sheet body (160), the tab (150) is provided with a second stiffener region (192) and a first stiffener region (191), the second stiffener region (192) is disposed between the first stiffener region (191) and the active material layer (130), a stiffener (190) is disposed in the first stiffener region (191) and the second stiffener region (192), a depth (H1) of the stiffener (190) in the first stiffener region (191) is greater than a depth (H2) of the stiffener (190) in the second stiffener region (192).

LIQUID COOLING ASSEMBLY AND BATTERY PACK

Absstract of: EP4794057A1

A liquid cooling assembly and a battery pack are provided. The liquid cooling assembly includes a plurality of liquid cooling plates arranged at intervals and a main pipe. An installation space for mounting at least one heat-generating element is formed between two adjacent liquid cooling plates. Each of the liquid cooling plates includes a flow passage portion and a plurality of nozzles in communication with the flow passage portion. The main pipe includes a plurality of connectors, and the connectors are in one-to-one expansion connection to the nozzles and are inserted into the nozzles. An inner wall of each of the connectors is provided with a support ring that overlaps each of the nozzles (11).

INSPECTION APPARATUS AND INSPECTION METHOD

Absstract of: EP4794054A1

Disclosed herein relates to an inspection device including: an inspection jig including a first jig having a plurality of first pressure sensing elements and a second jig having a plurality of second pressure sensing elements, wherein the inspection jig is configured to generate thickness data regarding the thickness of a battery cell provided between the first jig and the second jig while the battery cell is in contact with the first jig and the second jig; and a processor configured to detect the bending dimensions and bending shape of the battery cell based on first pressure data generated from the plurality of first pressure sensing elements, second pressure data generated from the plurality of second pressure sensing elements, and the thickness data.

BATTERY CELL

Absstract of: EP4794094A1

0001 This application provides a battery cell, which relates to the technical field of battery cells. The battery cell includes an electrode assembly and a housing, wherein the electrode assembly is arranged in the housing, and an explosion-proof structure is provided on the housing; a valve opening area S of the explosion-proof structure, a valve opening pressure P of the explosion-proof structure, an electrolyte injection amount m of the battery cell, and a capacity C of the battery cell satisfy 2.4 ≤ S×P-C/(m×1000) ≤ 5.4. This application appropriately sets the valve opening area of the explosion-proof structure, valve opening pressure of the of the explosion-proof structure, electrolyte injection amount of the battery cell, and the capacity of the battery cell, so that when the battery cell fails and causes thermal runaway, the explosion-proof structure can work in time, and different parameters, for example the capacity of the battery cell, can be set according to actual conditions, so as to meet the explosion-proof requirements of large-capacity batteries.

APPARATUS FOR FORMING INCISIONS IN ELECTRODE PRECURSORS

Absstract of: WO2025078957A1

An apparatus (10) for forming incisions in electrode precursors comprises a laser head (11) configured to emit a laser beam (LB) having a predetermined wavelength along an optical path (OP), an incision formation zone (NZ) placed along the optical path (OP) of the laser beam (LB), a support device (12) for an electrode precursor (100) comprising a support structure (13) configured to receive and support the electrode precursor (100). The incision formation zone (NZ) is placed along a first portion (16) of the support structure (13) and in the incision formation zone (NZ) the first portion (16) of the support structure (13) is traversed by the optical path (OP) of the laser beam (LB). At least the first portion (16) of the support structure (13) is made of a material that is transparent to a laser beam having said predetermined wavelength.

ELECTRODE SHEET, SECONDARY BATTERY AND ELECTRONIC DEVICE

Absstract of: EP4794106A1

0001 The disclosure provides an electrode sheet (300), including: an electrode sheet body (310), and a tab (320) protruding from the electrode sheet body (310) along a first direction (F), the tab (320) is set with a reinforcing rib array (321), the reinforcing rib array (321) includes multiple first reinforcing ribs (322); wherein in the first direction (F), every two adjoining first reinforcing ribs (322) are separated from each other. The purpose of the disclosure lies in providing an electrode sheet (300), a secondary battery (100A/B) and an electronic device (1000), so as to at least strengthen the supporting force for the tab (320).

ELECTRODE SHEET, SECONDARY BATTERY AND ELECTRONIC DEVICE

Absstract of: EP4793997A1

0001 An electrode sheet (100, 100A, 100B), a secondary battery (500), and an electronic device (1000) are provided. The electrode sheet (100, 100A, 100B) includes: an electrode sheet body (160); and an electrode tab (150, 150') extending from the electrode sheet body (160) in a first direction (D1), where a stiffener (190) is disposed on a surface of the electrode tab (150, 150'), where the stiffener (190) at least includes a first portion (192) and a second portion (194), the first portion (192) and the second portion (194) are connected through a bending part (196). An angle formed by the first portion (192) and the second portion (194) is a, 28°≤a≤45°.

BATTERY NEGATIVE ELECTRODE SHEET AND BATTERY

Absstract of: EP4794005A1

The present application provides a battery and a negative electrode sheet thereof. The battery negative electrode sheet includes a current collector and an active layer. The active layer is coated on the surface on at least one side of the current collector. The active layer has a plurality of grooves arranged in sequence along the length direction of the current collector. The grooves each extend along the width direction of the current collector. A plurality of regions in the active layer are separated by the plurality of grooves along the length direction of the current collector. Each region has a plurality of pores.

ENERGY STORAGE DEVICE, ENERGY STORAGE SYSTEM AND CHARGING NETWORK

Absstract of: EP4793199A1

An energy storage device, an energy storage system and a charging network. The energy storage device (100) comprises at least one energy compartment (10) and at least one control compartment (20), wherein the energy compartment (10) comprises a first compartment body (13) and an energy unit (12), the energy unit (12) being accommodated in the first compartment body (13); the dimension of the energy compartment (10) in a height direction thereof is less than the dimension of a standard container in a height direction thereof; the control compartment (20) is disposed outside the energy compartment (10); and the control compartment (20) comprises a second compartment body (21) and a control module (22), the control module (22) being accommodated in the second compartment body (21), and the control module (22) being used for performing electrical control on the energy unit (12) in the energy compartment (10).

CONTAINER, ENERGY STORAGE APPARATUS, ENERGY STORAGE SYSTEM AND CHARGING NETWORK

Absstract of: EP4793196A1

Disclosed in the present application are a container, an energy storage apparatus, an energy storage system and a charging network. The energy storage apparatus comprises containers. There are m containers, where m>2, and the m containers are arranged in the direction of height of the containers. The size of each container in the direction of length thereof is consistent with the size of a standard container in the direction of length thereof, the size of each container in the direction of width thereof is consistent with the size of a standard container in the direction of width thereof, the size of each container in the direction of height thereof is smaller than the size of a standard container in the direction of height thereof, and the sum of the sizes of ml adjacent containers among the m containers in the direction of height thereof is equal to the sum of the sizes of n standard containers in the direction of height thereof. The size of ml containers in the direction of height thereof is equal to the size of n standard containers in the direction of height thereof, such that the space occupied by ml stacked containers is the same as the space occupied by n standard containers, thereby improving the space utilization rate of container placement, and reducing the container transportation cost, thus reducing the use cost of energy storage apparatuses.

APPARATUS FOR FORMING INCISIONS IN AN ELECTRODE PRECURSOR AND METHOD FOR FORMING INCISIONS IN AN ELECTRODE PRECURSOR

Absstract of: WO2025078960A1

An apparatus (10) for forming incisions in electrode precursors comprise a support drum (12) rotatable around a rotation axis (R1 ) and comprising a support surface (13) configured to receive and to support the electrode precursor (100), a laser head (11 ) placed at the rotation axis (R1 ) of the support drum (12) and configured to emit a laser beam (LB) along an optical path (OP), an incision formation zone (NZ) placed along the optical path (OP) of the laser beam (LB). The incision formation zone (NZ) is placed cantilevered with respect to said support surface (13). An adhesion device (16) is configured to generate forces (F) which have components having directions transverse to the support surface (13) and towards the support surface (13), the adhesion device (16) being configured to generate said forces (F) on the electrode precursor (100).

ANODE FOR SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Absstract of: EP4794006A1

0001 An anode for a lithium secondary battery includes an anode current collector, and an anode active material layer formed on the anode current collector and including an anode active material, a binder and a nitrate. A concentration gradient of the binder in a thickness direction from a top surface of the anode current collector to a top surface of the anode active material layer is 0.1 wt%/µm or less. The concentration gradient of the binder is calculated from contents of a dye adsorbed to the binder measured at multiple points along a line in the thickness direction on a cross-section of the anode active material layer through an SEM-EDS and a thickness of the anode active material layer.

BATTERY PACK

Absstract of: EP4794075A1

A battery pack includes: a housing; multiple cells disposed in the housing; and a coupling portion configured to be coupled to an electrical device to transmit electrical energy. The coupling portion includes: a terminal assembly configured to be electrically coupled to the electrical device; and a support portion supporting at least the connection between the electrical device and the battery pack, where the support portion includes a support cavity and a reinforcing member accommodated in the support cavity, and the reinforcing member is an independent prefabricated member and is made of the same material as the housing.

ELECTRODE SHEET AND SECONDARY BATTERY

Absstract of: EP4794104A1

An electrode sheet (100) includes a current collector (10) including a current collector body (12) and a tab (14) extending from the current collector body (12) along a first direction (d); an active material layer (20) disposed on at least one side of the current collector (10) in a thickness direction; and a reinforcement rib (30). The tab (14) has a tab bare foil region (40) where the active material layer (20) is not disposed. In the first direction (d), the reinforcement rib (30) continuously extends from the tab bare foil region (40) to a surface of the active material layer (20). The disclosure provides an electrode sheet (100) and a secondary battery (1300) to at least achieve avoiding tab folding.

APPARATUS FOR CLEANING ELECTRODE ROLLING ROLL

Absstract of: EP4792944A1

0001 According to one embodiment of the present disclosure, provided is a device for cleaning an electrode rolling roll, comprising: a cleaning member provided so as to allow a surface of the electrode rolling roll to come into contact with a cleaning cloth, a spray nozzle that sprays a cleaning liquid onto the cleaning cloth, a control unit that adjusts the sprayed amount of the cleaning liquid, and a monitoring unit that monitors the sprayed amount of the cleaning liquid, wherein the cleaning liquid is a distilled water, and wherein the control unit adjusts the amount of the cleaning liquid sprayed once by the spray nozzle so as to be within a range of 0.05 ml to 0.2 ml.

BATTERY PACK AND ENERGY STORAGE DEVICE

Absstract of: EP4794060A1

Embodiments of this application relate to the field of energy storage technologies, and a battery pack and an energy storage device are provided. A heating film is disposed in the battery pack, to increase a temperature of an operating environment of a cell in the battery pack. Wiring density of heating wires at different positions in the heating film is controlled, to control heating efficiency at the different positions in the heating film, and selectively heat cells at the different positions to different extents, so that different cells of the battery pack can be heated to a preset temperature range. In this way, temperatures of the different cells of the battery pack may be neither excessively low to result in low charging/discharging efficiency, and nor excessively high to affect a service life or safety performance of the cells. Therefore, a service life and safety performance of the battery pack are effectively improved while charging/discharging efficiency of the battery pack is ensured, thereby improving a service life and safety of the energy storage device.

LEAD-TAB LASER WELDING METHOD AND LEAD-TAB LASER WELDING APPARATUS

Absstract of: EP4792971A1

0001 The present invention relates to a lead-tab laser welding method for joining a lead portion and a tab portion, and the lead-tab laser welding method may comprise a seating step of disposing the lead portion and the tab portion of a secondary battery so as to overlap each other, and a laser welding step in which a welding unit forms a plurality of beads in an overlap region of the lead portion and the tab portion, wherein in the laser welding step, with respect to first, second, and third positions sequentially located along a first direction in the overlap region of the lead portion and the tab portion, the beads are formed in the order of the first position, the third position, and the second position.

CALENDER FOR PRODUCING VERY HIGH LINE FORCES, AND METHOD FOR OPERATING A CALENDER

Absstract of: WO2025078036A1

The invention relates to a calender (100) for calendering sheet materials (10), preferably in order to produce electrodes, having a first roller (1) and a second roller (2). The rollers (1, 2) can be moved relative to each other in an axial direction (A), and the calender (100) has first actuation means (7) for bending the first roller (1) by the introduction of torque in a radial direction (R). The invention additionally relates to a method for operating a calender (100).

NEGATIVE ELECTRODE SHEET, SECONDARY BATTERY AND ELECTRICAL APPARATUS

Absstract of: EP4794013A1

0001 The present disclosure provides a negative electrode, a secondary battery, and an electric device, and belongs to the technical field of batteries. By controlling volume median particle sizes Dv50 of a first negative electrode active material and a second negative electrode active material in a negative electrode active material, a grading ratio (X) of the negative electrode active material, a tensile strength of the negative electrode, and a content of a first binder in the negative electrode active material layer to satisfy the following relationship: 0.69 ≤ (A + B) × X/(N × C) ≤ 160, the present disclosure can effectively enhance the adhesion and electrical conductivity of the negative electrode and effectively suppress the expansion and contraction of the negative electrode active material, thereby improving the stability of the negative electrode active material. This design enables the negative electrode active material to be uniformly distributed on the negative electrode, shortens the migration and diffusion path of lithium ions in the negative electrode active material, and reduces the resistance of the secondary battery while improving the cycling performance of the secondary battery.

ELECTROCHEMICAL APPARATUS AND ELECTRIC DEVICE

Absstract of: EP4794043A1

This application discloses an electrochemical apparatus and an electric device, and the electrochemical apparatus includes a housing, an electrode assembly, a first adhesive member, and a second adhesive member. A first sidewall of the housing includes an internal first surface and an external second surface opposite to each other along a first direction. The electrode assembly is disposed within the housing, and the electrode assembly includes a first side surface. The first adhesive member includes a first side portion and a second side portion opposite each other, where the first side portion includes a first adhesive region bonded to the first surface, and the second side portion includes a second adhesive region, a first non-adhesive region, and a third adhesive region sequentially arranged along a second direction, and the second adhesive region and the third adhesive region are bonded to the first side surface. Along the first direction, a projection of the first non-adhesive region overlaps with a projection of the first adhesive region. The second surface is bonded to an external structure through the second adhesive member. This application is conducive to suppressing impact on corners of the housing, and facilitates reducing the risk of damage to electrode plates of the electrode assembly.

POWER STORAGE DEVICE AND METHOD FOR MANUFACTURING SAME

Absstract of: EP4794040A1

Provided are a power storage device (10) which can suppress the growth of dendrites while suppressing increases in the mass and volume of the power storage device, and a method for manufacturing the power storage device. The power storage device includes a positive electrode (11), a negative electrode (15), and a separator (14) for isolating the positive electrode and the negative electrode. The negative electrode includes an active material layer (17), an electrolyte layer (18), and a conduction layer (19), which are arranged in this order toward the positive electrode. The active material layer includes an active material which reduces carrier ions. The electrolyte layer includes an electrolytic solution and a solid electrolyte having conductivity for carrier ions, and is in contact with the active material layer. The conduction layer has electron conductivity, is in contact with the electrolyte layer, and takes in an element deposited at an interface between the active material layer and the electrolyte layer.

SECONDARY BATTERY AND ELECTRIC DEVICE

Absstract of: EP4793995A1

0001 The present disclosure relates to a secondary battery and an electrical device. The secondary battery satisfies a relationship as follows: 0.3 ≤ A/100×(N+100P) ≤ 25; where A, in ppm, represents a mass content of the Al element in the positive electrode active material; P, in %, represents a weight percentage of the pyridine-based additive in the electrolyte; and N, in %, represents a weight percentage of the nitrile-based additive in the electrolyte. By correlating and defining the relationship between the key additives in the electrolyte and the Al content in the positive electrode active material, the present disclosure can effectively enhance the complexation between the nitrile-based and pyridine-based additives in the electrolyte and the positive electrode active material, thereby improving the film-forming stability of the battery during charging, and thus significantly enhancing the high-temperature stability of the battery.

ELECTROLYTES THAT INCLUDE LITHIUM IODIDE AND BATTERIES THAT INCLUDE SUCH ELECTROLYTES

Absstract of: WO2025081003A1

Presented herein are, infer alia, electrolytes for electrochemical cells, such as lithium sulfur secondary batteries. The electrolytes comprise one or more lithium salts. One or more of the lithium salts is lithium iodide. Lithium iodide is a primary electrolytic salt. Secondary batteries that include the disclosed electrolytes are also disclosed.

SYSTEMS AND METHODS FOR CONTROLLED BATTERY HEATING

Absstract of: WO2025081083A1

Systems and methods for low temperature charging a battery, which may be performed alone or in combination with heating a battery. In some aspects, the low temperature charging method involves obtaining a susceptance response of a battery, and upon a change in the susceptance response of the battery, altering a charge signal to the battery. It is understood that changes in susceptance are correlated with phase changes of a battery electrolyte – e.g., as a battery warms from a low temperature where the electrolyte is partially or completely frozen (solid) to a higher temperature where it changes to a liquid state, there is a change in susceptance. As the electrolyte changes from solid to liquid as understood from a change in the susceptance response, the charge may be increased as the electrolyte thaws.

BATTERY PACK AND STRUCTURE

Absstract of: EP4794074A1

Provided is a battery pack including a mica plate that is resistant to damage and is lightweight. The battery pack of the present invention includes a module with a plurality of battery cells; a case containing the module; and a mica plate disposed between the module and the case and having a first main face and a second main face opposite to the first main face, the battery pack further including an attaching member disposed on a surface of the mica plate to fix the mica plate, an area S1 of the attaching member being not less than 5.8 × 10^-6 times an area S2 of the mica plate in a plan view of the mica plate.

SYSTEM AND METHOD FOR DEGRADATION BASED BATTERY CONTROL

Absstract of: AU2024360191A1

A method can include receiving battery sensor measurements, determining a state of the battery (e.g., SoH, SoC, SoE, SoP, etc. or information correlated therewith such as internal resistance, open circuit voltage, etc.), estimating an aging profile or degradation of the battery for one or more operating conditions, and determining operating conditions for the battery based on the estimated degradation.

ELECTRODE SHEET, ELECTRODE ASSEMBLY, BATTERY CELL AND PREPARATION METHOD THEREFOR, BATTERY, AND ELECTRIC DEVICE

Absstract of: EP4794007A1

0001 An electrode sheet, an electrode assembly, a battery cell and a preparation method therefor, a battery, and an electric device, relating to the technical field of batteries. A protective layer is provided on at least the surface of an end portion of the electrode sheet, and the protective layer comprises silicon oxide; and on the basis of the total mass of all elements of a first position of the electrode sheet, the mass content A of an Si element satisfies: A is less than 0.01 wt%, and the first position is a position 5 mm distant from the surface of the end portion.

QUALITY CONTROL SYSTEM FOR SECONDARY BATTERY AND QUALITY CONTROL METHOD USING SAME

Absstract of: EP4794017A1

In order to provide a secondary battery quality control system and a secondary battery quality control method that allow performance of a completed secondary battery to be predicted on the basis of structure information of an electrode mixture sheet produced during manufacturing steps, the following configuration is provided. There are provided the quality control system for a secondary battery includes: a storage unit that stores a performance prediction model obtained by formulating correlation between structure information of an electrode mixture sheet and performance information of the secondary battery manufactured by applying the electrode mixture sheet; and a performance prediction unit that inputs the structure information of the newly manufactured electrode mixture sheet to the performance prediction model to predict electrode performance of the secondary battery manufactured by applying the electrode mixture sheet, and the secondary battery quality control method.

MANUFACTURING METHOD OF POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Absstract of: EP4793239A1

The present invention relates to a method for manufacturing a positive electrode active material for a lithium secondary battery, the method comprising: preparing a manganese-excess transition metal precursor having a molar ratio (Mn/M) of manganese (Mn) to transition metal (M) of 0.5 to 0.75; oxidizing the transition metal precursor by performing a first calcination; and forming a lithium and manganese-excess lithium transition metal oxide by lithiating the oxidized transition metal precursor through a second calcination.

SOLVENTLESS ELECTRODES

Absstract of: CN122070610A

An electrode for an energy storage device is disclosed, the electrode comprising a solvent-free electrode film. The solventless film includes a porous network of active material joined together by binder particles. The binder particles comprise a high density polyethylene polymer.

BATTERY COMPRISING AT LEAST ONE STACK OF ELECTRICAL CELLS AND ASSOCIATED ELASTIC DEVICE FOR COMPENSATING FOR GAPS

Absstract of: WO2025078776A1

The invention relates to a battery (1) for storing electrical energy, comprising: at least one stack (7) of electrical cells (6); and a housing including a base (3) to which the stack (7) of cells of the battery (1) is attached. The battery (1) comprises: at least two compression plates (8) which are arranged on either side of the stack; means (10) for attaching the compression plates (8) to the base (3); at least one tie rod (12) which is capable of pressing the compression plates (8) against the cells (6) of the stack (7); and at least one elastic device (15) for compensating for gaps in the stack in a direction of dimensional variation of the stack, the device comprising at least one flat-wire wave spring.

LITHIUM FERRITE PRE-LITHIATION ADDITIVE, POSITIVE ELECTRODE MATERIAL, POSITIVE ELECTRODE SHEET, AND SECONDARY BATTERY

Absstract of: EP4794032A1

0001 The present application relates to the technical field of secondary batteries. Provided are a lithium ferrite lithium supplement, a cathode material, a cathode plate, and a secondary battery. The lithium ferrite lithium supplement of the present disclosure includes a nuclear layer and a shell layer covering a surface of the nuclear layer. A material of the nuclear layer includes Li<5>FeO<4>, and a material of the shell layer includes a carbon material. I/I of the lithium ferrite lithium supplement is 1.0-1.2, and an average thickness of the shell layer is 60 nm-200 nm. In the present disclosure, by forming a carbon layer on the surface of the nuclear layer containing the Li<5>FeO<4>, the I/I is controlled, and the average thickness of the shell layer is controlled, such that the air stability of the lithium ferrite lithium supplement may be effectively improved.

POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, AND SECONDARY BATTERY

Absstract of: EP4794027A1

The present application provides a cathode material, a manufacturing method thereof, a cathode plate, a secondary battery, and an electric device, which belongs to the technical field of battery cathode materials. The cathode material includes a carbon layer and a plurality of sodium vanadium fluorophosphate particles distributed in the carbon layer. The sodium vanadium fluorophosphate particles are coated by the carbon layer. The carbon layer has a porous network structure and a thickness of 3 nm to 6 nm. A porosity of the cathode material is 10% to 35%. The manufacturing method adopts a microwave-assisted hydrothermal treatment and a sol-gel technology to obtain a gel slurry, which is dried and then calcined to obtain the above cathode material. The cathode material of the present application improves the wettability in an electrolyte and the electron and sodium ion transport efficiency, which improves the charging and discharging efficiencies and the electrochemical performance of the secondary battery.

METHOD FOR MANUFACTURING PRE-LITHIATED NEGATIVE ELECTRODE AND LITHIUM SECONDARY BATTERY COMPRISING PRE-LITHIATED NEGATIVE ELECTRODE MANUFACTURED THEREBY

Absstract of: EP4794000A1

The present invention relates to a method for manufacturing a pre-lithiated negative electrode capable of suppressing formation of by-products during a pre-lithiation process, the method including the steps of preparing a negative electrode including a negative electrode active material layer having a moisture content of 800 ppm or more and provided on at least one surface of a negative electrode current collector layer; and bringing a transfer stack including a lithium metal layer and a base layer into contact with one surface of the negative electrode active material layer, with the lithium metal layer facing the one surface, and also relates to a lithium secondary battery including a pre-lithiated negative electrode manufactured therefrom.

BATTERY MODULE

Absstract of: EP4794097A1

0001 Provided is a battery module. The battery module includes a plurality of battery cells, a housing accommodating the plurality of battery cells, and a vent part arranged in a portion of the housing, wherein the vent part includes an outer hopper arranged through the housing, an inner surface of the outer hopper defines a vent hole penetrating the housing, and a diameter of the vent hole increases toward outside of the battery module.

BATTERY CELL, BATTERY PACK, AND DEVICE COMPRISING SAME

Absstract of: EP4794039A1

A battery cell of the present invention includes a wound electrode stack, wherein the electrode stack includes a plurality of positive electrodes and a plurality of negative electrodes, and for at least two of the electrodes, the winding center of the electrode with a lower active material loading amount is located inward of the winding center of the electrode with a higher active material loading amount.

CYLINDRICAL SECONDARY BATTERY MANUFACTURING DEVICE AND MANUFACTURING METHOD

Absstract of: EP4794037A1

0001 The present invention relates to a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, which relates to a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, capable of effectively performing line balancing in a circulation manufacturing line. 0002 According to one example of the present invention, it is possible to provide a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, which are characterized by comprising a plurality of sensors provided along a buffer line provided between preceding equipment and succeeding equipment, to calculate loading degrees of carriers step-by-step in the buffer line; and a controller adjusting process speeds of the preceding equipment and the succeeding equipment based on the step-by-step loading degrees calculated through combinations of outputs of the plurality of sensors, thereby balancing the process speeds of the preceding equipment and the succeeding equipment, and controlling to track the overall target process speed.

CYLINDRICAL SECONDARY BATTERY MANUFACTURING APPARATUS AND MANUFACTURING METHOD

Absstract of: EP4794038A1

The present invention relates to a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, which relates to a cylindrical secondary battery manufacturing device capable of effectively performing line balancing in a circulation manufacturing line.According to one example of the present invention, it is possible to provide a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, capable of automatically determining an appropriate quantity of carriers during circulation in a circulation manufacturing line through a master carrier distinguished from general carriers and a sensor sensing the master carrier.

MEASURING DEVICE AND MEASURING METHOD FOR DETERMINING AT LEAST ONE PROPERTY OF A PLANAR ELEMENT OF THE BATTERY CELL-PRODUCING INDUSTRY

Absstract of: WO2025078694A1

The invention relates to a measuring device (10) for determining at least one property of a planar element (31) of the battery cell-producing industry, wherein the measuring device (10) is arranged in a measuring relationship to a surface (32) of a planar element (31) placed at the top of an element stack (30) and is configured to determine image data of the surface (32), comprising a data processing device (50) which is configured to process the determined image data and herefrom to determine at least one property of the planar element (31). The measuring device (10) has at least one laser measuring device (51) which is configured to measure the distance to the surface (32) of the planar element (31) by means of a laser beam (57) directed onto the planar element, wherein the data processing device (50) is configured to link the determined image data and the distance data from the at least one laser measuring device (51).

POSITIVE ELECTRODE ACTIVE MATERIAL POWDER AND METHOD FOR MANUFACTURING A POSITIVE ELECTRODE ACTIVE MATERIAL

Absstract of: WO2025078476A1

The present invention relates to a method for reducing a Na-loss in preparing a positive electrode active material powder comprising particles having a substantially octahedral shape, comprising: mixing a Li source, a precursor comprising transition metals and a sintering flux to obtain a mixture; and heating the mixture to obtain a heated material, wherein the transition metals comprise Ni, optionally Co, and optionally Mn, wherein the sintering flux is Na2CO3, and wherein the Na-loss is a difference between a first Na content in the mixture and a second Na content in the heated material, the first and second Na contents being measured via ICP-OES and being relative to a total amount of the transition metals.

BATTERY PACK, STRUCTURE, AND METHOD FOR MANUFACTURING MICA PLATE

Absstract of: EP4794087A1

0001 Provided is a battery pack including a mica plate that is resistant to damage and is lightweight. The battery pack of the present invention includes a module with a plurality of battery cells; a case containing the module; and a mica plate disposed between the module and the case and having a first main face and a second main face opposite to the first main face, the battery pack further including a fixing member to fix the mica plate, the mica plate having a first fixing member hole penetrating from the first main face to the second main face, at least one of the module or the case being provided with a connecting member having a second fixing member hole, the fixing member including a head and a body extending from the head, the head of the fixing member being on the first main face of the mica plate, the body of the fixing member passing through the first fixing member hole into the second fixing member hole, thereby fixing the mica plate, the head, in a planar perspective view of the mica plate, covering at least a part of an outline of the first fixing member hole and overlapping the mica plate, an overlapping area, denoted as area S 1, between the head and the mica plate being not less than 5.8 × 10<-6> times an area S2 of the mica plate.

LITHIUM-REPLENISHING AGENT AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET AND SECONDARY BATTERY

Absstract of: EP4794031A1

The present disclosure provides a lithium supplement and belongs to the technical field of energy storage. The lithium supplement includes: a rich-lithium lithium iron oxide material, and a coating layer coated on a surface of the rich-lithium lithium iron oxide material. A material of the coating layer includes lithium pyrophosphate. The present disclosure is beneficial for solving technical problems such as poor stability in air and poor safety of the rich-lithium cathode materials in related technologies to achieve effectively supplementation.

BATTERY, BATTERY PACK, CASE AND CASE ASSEMBLY

Absstract of: EP4794073A1

0001 A battery, a battery pack, a housing, and a housing assembly are provided. The battery includes a housing, a cover assembly and a first sealing element. A first opening is formed at one end of the housing, the cover assembly is connected to the housing and seals the first opening, the first sealing element is disposed between the cover assembly and the housing. The first sealing element wraps a side surface of the cover assembly and forms a sealed connection to the cover assembly and the housing, and a gap is formed between the first sealing element and the side surface of the cover assembly.

SECONDARY BATTERY INSPECTION DEVICE

Absstract of: EP4793632A1

0001 A secondary battery inspection apparatus according to an embodiment of the present disclosure for solving the above problems includes a plurality of first mirrors formed radially to be spaced apart from a central axis of a body by a first radius; a plurality of second mirrors formed radially to be spaced apart from the central axis by a second radius smaller than the first radius; a plurality of prism mirrors disposed on the inner side of the plurality of first mirrors and the plurality of second mirrors in a direction of facing the plurality of first mirrors and the plurality of second mirrors, respectively, and formed radially to be spaced apart from the central axis by a third radius smaller than the second radius; and a light receiving unit that receives light reflected through the prism mirror.

LITHIUM SECONDARY BATTERY, AND BATTERY MODULE AND BATTERY PACK COMPRISING SAME

Absstract of: EP4794044A1

The present invention relates to a lithium secondary battery including a pre-lithiated negative electrode and a positive electrode, in which a charge capacity N/P ratio (%) expressed by Formula 1 satisfies a range of 108% or more and 123% or less, thereby securing life performance, and to a battery module and a battery pack including the same.

POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE COMPRISING SAME, AND LITHIUM SECONDARY BATTERY

Absstract of: EP4794019A1

0001 A positive electrode active material includes a lithium nickel-based oxide having the content of nickel (Ni) ranging from about 50 mol% to 70 mol% among total transition metals, and a coating layer formed on a surface of the lithium nickel-based oxide and including cobalt (Co) and lithium (Li). The coating layer has a form including both dot-shaped and film-shaped phases, and the weight ratio of lithium (Li) to cobalt (Co) in the positive electrode active material ranges from about 5 to 20.

SLURRY, POSITIVE ELECTRODE COMPOSITION, BATTERY, AND METHOD FOR PRODUCING SLURRY

Absstract of: EP4794018A1

A slurry containing carbon black, a dispersant, and a dispersion medium, wherein, in a volume-based particle size distribution of the carbon black, a median diameter (D50) is at least 0.5 µm and at most 0.8 µm, a difference (D90 - D10) between a cumulative 90% diameter (D90) and a cumulative 10% diameter (D10) is less than 2 µm, and a total amount of particles having a particle diameter larger than 5 µm is less than 1%, and a ratio (D50'/D50) of a median diameter (D50') of the carbon black when the slurry has been placed at rest for 4 weeks to D50 is less than 1.3.

NEGATIVE ELECTRODE ACTIVE MATERIAL AND METHOD FOR PRODUCING SAME

Absstract of: EP4794025A1

The present invention is a negative electrode active material containing negative electrode active material particles, in which the negative electrode active material particles contain a porous carbon structure, a low-valent nano silicon oxide in an amorphous state is dispersed within the porous carbon structure, the low-valent nano silicon oxide includes states represented by SiOx where "x" is less than 1.0, and the low-valent nano silicon oxide has a particle size of 50 nm or less on average, the particle size being determined by image processing of a cross-sectional TEM image. This provides the negative electrode active material capable of increasing a capacity thereof while maintaining battery characteristics.

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND ELECTRODE USING SAME

Absstract of: EP4794029A1

0001 A nonaqueous electrolyte secondary battery includes a first electrode, a second electrode, a nonaqueous electrolyte, and a separator provided between the first electrode and the second electrode. The first electrode includes a first current collector and a first active material layer supported on the first current collector. The first active material layer contains a first active material, a binder, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200°C or higher and 500°C or lower. In a cross section of the first active material layer, the polymer material forms a plurality of island-shaped regions and is dispersed therein. The aspect ratio: DL/DW is 1.5 or less, where DL represents a length of a major axis of particles of the polymer material, the major axis defining a maximum particle diameter thereof, and DW represents a length of a minor axis perpendicular to the major axis at a midpoint thereof.

METHOD OF MAKING A PRECURSOR FOR A CATHODE ACTIVE MATERIAL

Absstract of: WO2025078192A1

The present invention is directed towards a process for making a particulate (oxy)hydroxide or oxide of TM wherein TM comprises nickel and one transition metal selected from Co and Mn and, optionally, at least one further metal selected from Ti, Zr, Mo, W, Al, Mg, Nb, and Ta, and wherein said process comprises the steps of: (a) Providing an aqueous solution (a) containing water-soluble salts of Ni and lithium and of at least one transition metal selected from Co and Mn, and, optionally, at least one further metal selected from Ti, Zr, Mo, W, Al, Mg, Nb, and Ta, and an aqueous solution (P) containing sodium or potassium hydroxide and, optionally, an aqueous solution (y) containing ammonia, wherein the amount of lithium is in the range of from 0.01 to 2.5 mol-% with respect to TM, (a) combining a solution (a) and a solution (|3) and, if applicable, a solution (y) at a pH value in the range of from 10.0 to 12.7 in one or more sub-steps, thereby creating solid particles of a hydroxide containing nickel, said solid particles being slurried, (b) removing the particulate (oxy)hydroxide of TM by a solid/liquid separation method, followed by drying.

DEVICE FOR CONTACTING BATTERY MODULES

Absstract of: WO2025078086A1

The invention relates to a device for contacting battery modules, comprising two connection parts (2, 3) which can be moved along an insertion direction (1) relative to one another between a disconnection position and a connection position, wherein a first connection part (2) comprises a contact body (4) having an electrical contact face (5) and a second connection part (3) comprises a contact terminal which, in the connection position, is seated against the contact face (5). In order to allow reliable electrical connection regardless of the mechanical load and, at the same time, to require little space, according to the invention the contact terminal is a contact spring (6) which, in the connection position, is resiliently seated against the contact face (5) perpendicularly to the insertion direction (1) and a connection part (3) has a stop face (7) for a positioning body (8) of the other connection part (2), said stop face acting perpendicularly to the insertion direction (1), and the contact face (5) having a greater area than the stop face (7).

CURRENT COLLECTOR, PRISMATIC BATTERY CELL AND ASSOCIATED MANUFACTURING METHOD

Absstract of: WO2026132690A1

The invention relates to a current collector (10) for a prismatic electric battery cell (1), the current collector comprising a lateral section (30) intended to be electrically connected to current-collecting tabs (55) of an assembly (50) of electrodes (51, 53) of the battery cell (1), the lateral section (30) extending between a proximal portion (31) and a free distal portion (35), the lateral section (30) comprising a generally planar main portion (33) connecting the proximal portion (31) and the distal portion (35), and forming a recess (d37) relative to the proximal portion (31) and the distal portion (35), to form a cavity (37) intended to receive the current-collecting tabs (55). The invention also relates to an assembly (5) and to a battery cell (1) comprising such a current collector (10).

Energy storage battery management system

Absstract of: EE202600018A

An energy storage battery management system comprising a power supply isolation unit, a high-voltage acquisition unit, and a communication isolation unit. The power supply isolation unit is configured to enable an initial low-voltage signal to sequentially undergo primary isolation of a first transformer and secondary isolation of a second transformer so as to obtain a second voltage, convert the second voltage into a target operating voltage, and provide the target operating voltage to the high-voltage acquisition unit. The high-voltage acquisition unit is configured to acquire battery cluster information, convert the battery cluster information into a digital signal form, and provide the battery cluster information in the digital signal form to the communication isolation unit. The communication isolation unit is configured to enable the battery cluster information in the digital signal form to sequentially undergo primary isolation of a third transformer and secondary isolation of a fourth transformer, and then transmit same to a microcontroller unit, so as to allow the microcontroller unit to generate a battery cluster control instruction on the basis of the battery cluster information.

Feuerfeste tragbare Stromversorgung

Absstract of: AT18791U1

Die Erfindung betrifft eine feuerfeste tragbare Stromversorgung, umfassend ein Akkupaket (2) und elektrische Komponenten (3). Sie weist auch ein Metallgehäuse (1) und eine Aerosol- Feuerlöscheinrichtung (4) auf, wobei im Metallgehäuse (1) mindestens ein Aufnahmeraum (17) ausgebildet ist, der zur Montage des Akkupakets (2) und der elektrischen Komponenten (3) geeignet ist. Das Akkupaket (2) ist von den elektrischen Komponenten (3) getrennt angeordnet. Das Akkupaket (2) ist elektrisch mit den elektrischen Komponenten (3) und berührend mit dem Metallgehäuse (1) verbunden. Die Aerosol-Feuerlöscheinrichtung (4) ist in dem Aufnahmeraum (17) angeordnet, wobei die Aerosol-Feuerlöscheinrichtung (4) so konfiguriert ist, dass sie das Aerosol in den Aufnahmeraum (17) freisetzt, wenn die Temperatur im Aufnahmeraum einen bestimmten Wert erreicht.

Dispositif de dissipation thermique ainsi que boîtier de connexion électrique, dispositif de stockage d’énergie électrique et véhicule comprenant un tel dispositif de dissipation.

Absstract of: FR3172037A1

Dispositif de dissipation thermique, notamment pour véhicule automobile, ledit dispositif comprenant un premier organe d’interface thermique (30) destinée à être en relation d’échange thermique avec un organe électrique (14) de chacune de deux sources chaudes (10a, 10b), ledit dispositif étant configuré pour un échange thermique entre ledit premier organe d’interface thermique (30) et une source froide (20), ledit premier organe d’interface thermique (30) comprenant un premier boîtier (32) rempli au moins en partie d’un fluide diélectrique pour un échange thermique entre lesdites sources chaudes (10a, 10b) par l’intermédiaire du fluide diélectrique, ledit premier boîtier (32) étant configuré pour isoler électriquement les organes électriques (14) desdites sources (10a, 10b) chaudes entre eux. Figure pour l’abrégé : Figure 2

Système de refroidissement pour batterie et procédé de fabrication associé

Absstract of: FR3172205A1

Système de refroidissement pour batterie, comprenant un circuit de refroidissement (5) comportant au moins un premier tuyau (6) métallique destiné à acheminer un fluide de refroidissement et incorporant au moins des première et deuxième jonctions (9, 10) chacune formée par une liaison rotule. Figure pour l’abrégé : Fig 2

Dispositif pour le cyclage de cellules électrochimiques

Absstract of: FR3172183A1

La divulgation se rapporte à un dispositif pour le cyclage de cellules électrochimiques, le dispositif comprenant un module fait en matériau isolant et ayant une forme adaptée à l’insertion du module dans une étuve pour le cyclage de cellules électrochimiques, le module comprenant des orifices, chaque orifice ayant une forme adaptée à l’insertion d’un élément porte-cellule configuré pour recevoir une cellule électrochimique afin de mesurer sa tension et son courant, chaque élément porte-cellule étant adapté à être connecté électriquement à un cycleur. Fig. 1

BATTERY MANAGEMENT SYSTEM, BATTERY DEVICE, AND BALANCING METHOD

Absstract of: WO2026168725A1

A battery management system connected to a battery module including a plurality of battery cells includes a plurality of cell balancing circuits and a control circuit to control the plurality of cell balancing circuits. Each cell balancing circuit includes: a DC/DC converter shared by a corresponding odd-numbered battery cell and a corresponding even-numbered battery cell among the plurality of battery cells and having an output terminal connected to a positive terminal of the battery module; a first switch connected between the corresponding odd-numbered battery cell and an input terminal of the DC/DC converter; and a second switch connected between the corresponding even-numbered battery cell and the input terminal.

NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY AND LITHIUM-ION SECONDARY BATTERY

Absstract of: WO2026168608A1

This negative electrode for a lithium-ion secondary battery comprises a negative electrode active material and a binder. The negative electrode active material has composite particles and a carbon material. The composite particles include amorphous carbonaceous particles and amorphous silicon particles. The carbon material is at least one selected from the group consisting of graphite, hard carbon, and soft carbon. The negative electrode active material is at least partially covered with a Na-containing layer containing Na. The binder contains a polymer having a polyacrylic acid backbone that has a weight-average molecular weight of 50,000-3,000,000. The substitution rate of the carboxy group of the polymer having a polyacrylic acid backbone with a sodium salt or a lithium salt is 10-49%.

SODIUM-ION CELL

Absstract of: WO2026167356A1

A sodium-ion cell (20) comprises an anode compartment and a cathode compartment (24) on either side of an electrolyte element (10), wherein the cathode compartment (24) contains a material (25) into which sodium ions can reversibly intercalate, the anode compartment may contain sodium metal (26), and wherein the electrolyte element (10) comprises a perforated sheet (12) of a metal, and a non-permeable layer (16b) of sodium-ion-conducting ceramic bonded to one face of the perforated sheet (12) by a porous and permeable ceramic sub-layer (16a).

CATHODE AND SECONDARY BATTERY COMPRISING SAME

Absstract of: WO2026168841A1

The present invention relates to a cathode and a secondary battery comprising same. The cathode comprises a lithium-rich compound represented by chemical formula 2, and thus can compensate for irreversible capacity loss occurring in an anode during initial charging and discharging, and a decrease in electrical conductivity due to the compound is reduced such that charging and discharging capacity characteristics are excellent. In addition, the cathode suppresses oxygen generation during charging and discharging, and thus a secondary battery comprising same has high safety and excellent cycle characteristics and lifetime characteristics.

NEGATIVE ELECTRODE AND ALL-SOLID-STATE BATTERY COMPRISING SAME

Absstract of: WO2026169116A1

The present invention relates to a negative electrode comprising a negative electrode current collector, a first negative electrode active material layer and a second negative electrode active material layer, and an all-solid-state battery comprising same, wherein the first negative electrode active material layer includes a first negative electrode active material and a conductive material, the first negative electrode active material is at least one selected from graphite, silicon or a combination thereof, the second negative electrode active material layer includes a second negative electrode active material and a solid electrolyte, and the second negative electrode active material is silicon. According to the present invention, it is possible to provide a novel negative electrode having high energy density and excellent charge specific capacity and coulombic efficiency characteristics over cycles, and an all-solid-state battery comprising same.

VERFAHREN ZUR HERSTELLUNG POSITIVER ELEKTRODENPARTIKEL, AUF WELCHE EINE KONTINUIERLICHE GLASPHASENSCHICHT AUFGEBRACHT IST UNTER VERWENDUNG VON TROCKENMISCHUNG UND EINSTUFIGER SINTERUNG

Absstract of: DE102025105467A1

Ein Verfahren zur Herstellung von positiven Elektrodenpartikeln, auf welche eine kontinuierliche Glasphasenschicht aufgebracht ist unter Verwendung einer Trockenmischung und einer einstufigen Sinterung und welches die folgenden Schritte umfasst: Mischung eines Nickel-Kobalt-Manganhydroxid-Vorläufers, einer Lithiumquelle und eines glasartigen Leitervorläufers unter Verwendung eines Mischers, um eine Vorläufermischung zu bilden; dann Platzierung der Vorläufermischung in einen Sinterofen und Durchführung einer sauerstoffunterstützten Sinterung, um ein gesintertes Pulver zu erhalten, welches aus mehreren positiven Elektrodenpartikeln gebildet ist, wobei jeder der positiven Elektrodenpartikel einen entsprechenden NCM-Partikel umfasst, der mit einer entsprechenden Glasphasenschicht beschichtet ist; dann Durchführung einer mechanischen Zerkleinerung des gesinterten Pulvers und Durchführung eines Siebvorgangs des gesinterten Pulvers unter Verwendung eines Siebs; und dann werden die gesinterten Pulver mit mehreren ersten Kohlenstoffnanoröhren und mehreren amorphen Kohlenstoffen im Nanomaßstab gemischt, um mehrere mit Kohlenstoffmaterial beschichtete positive Elektrodenpartikel zu bilden.

Thermally Stable and Flame-Resistant Elastomer-Protected Anode Layer and Lithium-Ion Battery

Absstract of: US20260237675A1

0000 An anode active material layer for a lithium battery, comprising: (a) 50% to 95% by weight of multiple particles of an anode active material; (b) 0.01% to 30% by weight of a conductive additive; and (c) a high-elasticity polymer having a recoverable tensile strain no less than 5% and a lithium ion conductivity no less than 10<−7 >S/cm at room temperature, wherein the high-elasticity polymer meets at least one of the following conditions: (i) the polymer comprises a thermally stable elastomer or rubber having a glass transition temperature or melting point higher than 250° C. (preferably higher than 275° C., more preferably higher than 300° C., and most preferably higher than 350° C., as measured by differential scanning calorimetry) or a thermal decomposition temperature higher than 350° C. as measured by a thermal gravimetric analyzer; (ii) the polymer comprises a flame retardant additive dispersed therein.

SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR

Absstract of: WO2026168869A1

A secondary battery according to one embodiment described in the present document comprises: an electrode assembly having an electrode tab; an electrode lead connected to the electrode tab; a lead cap through which the electrode lead passes; and a pouch film which surrounds the electrode assembly and at least a portion of the lead cap and forms an internal space in which the electrode assembly is located, wherein the lead cap includes a cap coupling part coupled to the pouch film, a front part through which the electrode lead passes, and a connecting part connecting the front part and the cap coupling part, and when the direction opposite the direction in which the front part faces the internal space is referred to as a first direction and a direction orthogonal to the first direction is referred to as a second direction, at least a portion of the connecting part has a curvature in a cross section obtained by cutting the lead cap along a plane orthogonal to the second direction.

CELL ASSEMBLY

Absstract of: WO2026168868A1

A technical idea of the present invention provides a cell assembly including: a cell block including a plurality of battery cells; a frame facing the cell block; and a plurality of compressible pads provided between the cell block and the frame and in contact with the cell block, respectively.

APPARATUS AND METHOD FOR PRESSURIZED PRE-CHARGE

Absstract of: US20260237765A1

0000 An apparatus for pressurized pre-charging according to an embodiment of the present disclosure is configured to include a pressurization device applying pressure to or releasing applied pressure from a plurality of battery cells; and a pre-charger performing first pre-charging on the plurality of battery cells in a state pressurized by the pressurization device before a rest period, stopping the first pre-charging during the rest period, and performing second pre-charging on the plurality of battery cells in a state pressurized by the pressurization device after the rest period, wherein the pressurization device performs pressurization against the plurality of battery cells for the first pre-charging and the second pre-charging, and performs depressurization on the plurality of battery cells during the rest period.

SOLID-STATE BATTERY AND MANUFACTURING METHOD OF SOLID-STATE BATTERY

Absstract of: US20260237666A1

A solid-state battery includes a current collector, an electrode active material layer disposed on at least one principal face of the current collector, an insulating layer disposed on the one principal face of the current collector so as to be in contact with an end portion of the electrode active material layer, and a solid electrolyte layer disposed on the electrode active material layer and the insulating layer, in which a Young's modulus of the insulating layer is smaller than a Young's modulus of the electrode active material layer.

SOLID-STATE BATTERY CELL AND PREPARATION METHOD THEREFOR, BATTERY DEVICE AND ELECTRIC DEVICE

Absstract of: WO2026166273A1

A solid-state battery cell and a preparation method therefor, a battery device and an electric device. The solid-state battery cell of the present application comprises a positive electrode sheet, a negative electrode sheet and a solid electrolyte, wherein the solid electrolyte comprises a sulfide; the positive electrode sheet comprises a positive electrode material; and a separator layer is arranged between the positive electrode sheet and the sulfide solid electrolyte, and comprises a compound Li3-nA1-xBxCl6-a-bBraFb. The cycling stability and fast charging performance of the solid-state battery cell are improved.

SPONTANEOUS SOLID-PHASE PRELITHIATION OF SILICON ANODE ELECTRODE FOR LITHIUM-ION BATTERIES

Absstract of: US20260237849A1

0000 A battery cell includes C cathode electrodes including a cathode active material layer arranged on one or both sides of a cathode current collector, A anode electrodes, and S separators arranged between adjacent ones of the C cathode electrodes and the A anode electrodes, where C, S and A are integers greater than one. Each of the A anode electrodes includes an anode current collector, a lithium silicide layer arranged on the anode current collector, and an artificial solid electrolyte interface arranged in first regions on one side of the lithium silicide layer and not in second regions on the one side of the lithium silicide layer. The artificial solid electrolyte interface includes one or more materials selected from a group consisting of lithium carbonate (Li<2>CO<3>), lithium nitride (Li<3>N), lithium oxide (Li<2>O), lithium phosphide (Li<3>P), lithium phosphate (Li<3>PO<4>), and combinations thereof.

POWER ELECTRONIC ARCHITECTURE FOR HOME ENERGY MANAGEMENT WITH BIDIRECTIONAL POWER TRANSFER CAPABILITY

Absstract of: US20260238014A1

0000 A home energy management system (HEMS) includes a first battery and a power converter. The power converter includes: a high-voltage direct current (HVDC) bus having a positive conductor and a reference conductor defining a DC voltage of at least 270V therebetween; an inverter configured to: convert alternating current (AC) power from a utility grid source to HVDC power on the HVDC bus for charging the first battery, and to convert power from the HVDC bus to AC power for supplying a home load; and a bi-directional DC-DC converter configured to transmit power between the HVDC bus and the first battery. The HEMS further includes: a HVDC plug configured to selectively connect the HVDC bus to a second battery located onboard an electrified vehicle, or the first battery is configured to be physically and electrically disconnected from the utility grid source and swapped-out with another battery of the electrified vehicle.

Verfahren zur Nachbehandlung einer deponierten Festelektrolytseparatorschicht und eine Vorrichtung zum Ausführen des Verfahrens

Absstract of: DE102025105350A1

Verfahren (200) zur Nachbehandlung einer deponierten Festelektrolytseparatorschicht (102), wobei die Festelektrolytseparatorschicht (102) auf einem Stromsammler (101) aus Metall oder metallisierter Polymerfolie aufgebracht ist und mechanische Spannungen sowie Kristallitspannungen aufweist, das Verfahren umfassend: Erwärmen (202) der Festelektrolytseparatorschicht (102) durch Lichtabsorption auf eine vorgegebene Temperatur oberhalb einer materialbedingten Temperaturschwelle, wodurch die mechanischen Spannungen in der Festelektrolytseparatorschicht (102) vermindert werden.

SILICON-CONTAINING ANODES FOR LITHIUM-BASED ENERGY STORAGE DEVICES

Absstract of: WO2026169894A1

An anode for a lithium-ion energy storage device may include a current collector with an electrically conductive layer and a lithium storage layer overlaying the current collector. The lithium storage layer can have a thickness of at least 500 nm and may contain at least 40 atomic % silicon, wherein the atomic % is relative to a total of non-hydrogen atoms, 0.5 – 50 atomic % nitrogen, and 0.1 - 25 atomic % hydrogen relative to a total of all atoms.

POSITIVE ELECTRODE SLURRY COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, POSITIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY MANUFACTURED BY USING SAME

Absstract of: WO2026168658A1

The present invention relates to a positive electrode slurry composition for a rechargeable lithium battery, and a positive electrode and a rechargeable lithium battery manufactured using same. The positive electrode slurry composition for a rechargeable lithium battery comprises: a positive electrode active material; an additive; and a solvent, wherein the additive includes: a first additive including a styrene-butadiene-based structural unit and a thiol-based structural unit; and a second additive including an oxygen-containing heterocyclic compound.

Energiespeicher mit Abdeckkappe für Steckerverbindung

Absstract of: DE102025105121A1

Die Offenbarung betrifft einen elektrischen Energiespeicher (1) für ein Elektrofahrzeug mit einer Mehrzahl von Speicherzellen (2); einer Elektronikeinheit zur Überwachung und Steuerung der Speicherzellen (2); wenigstens einem Schaltelement (6), welches elektrisch mit der Elektronikeinheit und/oder der Mehrzahl von Speicherzellen (2) verbunden ist; wenigstens einem Stecker (4) zur elektrischen und mechanischen Verbindung des Schaltelements (6) mit der Elektronikeinheit und/oder den Speicherzellen (2); und einer Abdeckkappe (8) zum Abdecken des wenigstens einen Steckers (4), um diesen vor Eindringen von Fluid, insbesondere Strukturschaum, zu schützen.

VERFAHREN UNTER VERWENDUNG VON VORLÄUFERSUBSTANZEN ZUR HERSTELLUNG POSITIVER ELKTRODENPARTIKEL BESCHICHTET MIT KERAMIKPARTIKELN UND EINER KONTINUIERLICHEN GLASPHASENSCHICHT

Absstract of: DE102025105462A1

Ein Verfahren zur Herstellung von positiven Elektrodenpartikeln, auf die unter Verwendung von Vorläufern Keramikpartikel und eine kontinuierliche Glasphasenschicht aufgetragen sind umfasst die folgenden Schritte: Vermischung einer Nickelquelle, einer Manganquelle, einer Kobaltquelle und eines ersten Dispersionsmittels, um eine Nickel-Kobalt-Mangan-Mischaufschlämmung zu bilden; dann Durchführung einer Trocknung und Sinterung der Nickel-Kobalt-Mangan-Mischaufschlämmung, um einen Nickel-Kobalt-Mangan-Vorläufer zu erhalten; dann Vermischung einer Lithiumquelle, eines glasartigen Leitervorläufers, eines LLZO-Vorläufers und eines zweiten Dispersionsmittels, um eine erste Vorläufermassenaufschlämmung zu bilden; dann Vermischung des Nickel-Kobalt-Mangan-Vorläufers und eines dritten Dispersionsmittels, um eine zweite Vorläufermassenaufschlämmung zu bilden und Vermischung der zweiten Vorläufermassenaufschlämmung mit der ersten Vorläufermassenaufschlämmung, um eine dritte Vorläufermassenaufschlämmung zu bilden; dann Trocknung der dritten Vorläufermassenaufschlämmung, um ein Vorläuferpulver zu erhalten; und anschließende Sinterung des Vorläuferpulvers, um die mit LLZO-Partikeln und einer Glasphasenschicht beschichteten positiven Elektrodenpartikel zu erhalten.

COLLECTOR FOR BIPOLAR SECONDARY BATTERY AND BIPOLAR SECONDARY BATTERY

Absstract of: US20260237684A1

0000 A collector for a bipolar secondary battery includes a conductive filler and a resin binder, in which the conductive filler has at least one form selected from the group consisting of a spike-shaped form, a structure-shaped form, and a sphere-shaped form, and has a D<90 >of 1.7 times or more and less than 5.2 times a thickness of a matrix that disperses and holds the conductive filler in the collector.

Verfahren zum Anpassen einer nutzbaren Kapazität eines elektrochemischen Energiespeichers

Absstract of: DE102025104957A1

Verfahren zum Anpassen einer nutzbaren Kapazität eines elektrochemischen Energiespeichers.

NEGATIVE ELECTRODE ACTIVE MATERIAL FOR SODIUM SECONDARY BATTERY, METHOD FOR PREPARING SAME, AND NEGATIVE ELECTRODE AND SODIUM SECONDARY BATTERY EACH COMPRISING SAME

Absstract of: WO2026169108A1

The present invention relates to a negative electrode active material for a sodium secondary battery, and a negative electrode and a sodium secondary battery each comprising same. More specifically, the present invention relates to a negative electrode active material for a sodium secondary battery and a method for preparing same, wherein the negative electrode active material has a pore structure capable of reversibly intercalating and de-intercalating sodium ions by form a large amount of closed pores in the active material through performing a carbonization process after modifying the surface of a carbon precursor by alkaline hydrolysis.

FORMATION METHOD FOR ALL-SOLID-STATE LITHIUM SECONDARY BATTERY

Absstract of: US20260237631A1

0000 A formation method for an all-solid-state lithium secondary battery according to one embodiment of the present invention, the battery including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, in which the positive electrode layer has a positive electrode current collector, and a positive electrode active material layer, the negative electrode layer has a metal film, the metal film is disposed at a position facing the positive electrode active material layer, and lithium is deposited on a surface of the metal film during charging, the method including performing charging at least once, in which an average charging current density in the charging for a first time falls within a range of 3.0 mA/cm<2 >or more and 14.0 mA/cm<2 >or less per area of a portion of the metal film facing the positive electrode active material layer.

SECONDARY BATTERY

Absstract of: US20260237873A1

A secondary battery includes an electrode assembly, an accommodating case that accommodates the electrode assembly, and a support member disposed between the accommodating case and the electrode assembly, in which the support member includes a pair of support plates that support the electrode assembly, and a projecting portion that projects from the support plates toward an inner surface of the accommodating case and comes into contact with the inner surface, and the projecting portion includes a rib structure or a shape that bulges toward the inner surface.

Druckausgleichsvorrichtung für einen Behälter, Behälter mit einer Druckausgleichsvorrichtung und Fahrzeug mit Behälter

Absstract of: DE102025000508A1

Die Druckausgleichsvorrichtung ist für einen Behälter, vorzugsweise für ein Gehäuse einer Fahrzeugbatterie, vorgesehen und weist ein Gehäuse auf, das mit wenigstens einen Einlass für ein Gas versehen ist. Dem Einlass ist in Strömungsrichtung des Gases vom Behälter aus eine semipermeable Membran nachgeordnet. Sie liegt in einer ersten Stellung vor einem Auslass und in einer zweiten Stellung hinter dem Auslass. Die Druckausgleichsvorrichtung hat ferner ein in Strömungsrichtung des Gases nachgeordnetes Ventilelement. Das Ventilelement weist für das Gas eine Durchlassöffnung auf, die durch einen Schließkörper verschließbar ist. In einem drucklosen Zustand verschließt der Schließkörper die Durchlassöffnung. In einem Be- oder Entlüftungszustand gibt der Schließkörper die Durchlassöffnung zumindest teilweise frei.

Deckel für eine Batterie, Batterie mit derartigem Deckel und Verfahren zur Herstellung eines solchen Deckels

Absstract of: DE102025104870A1

Die Erfindung betrifft einen Deckel (1) für eine Batterie (B) zum Abdecken eines Batteriegehäuses (2), das in seinem Innenraum eine Batteriezelle (3) beherbergt, mit einer Außenplatte (4), die eine elektrische Schnittstelle zu einer externen Umgebung des Batteriegehäuses (2) ausbildet, einer Innenplatte (5), die eine elektrische Schnittstelle zur Batteriezelle (3) ausbildet, und einer Grundplatte (6), die zwischen der Außenplatte (4) und der Innenplatte (5) angeordnet ist und mit dem Batteriegehäuse (2) verbindbar ist. Dabei ist die Außenplatte (4) einstückig mit einem Verbindungsstück (7) ausgebildet, welches eine elektrische Verbindung zwischen der Außenplatte (4) und der Innenplatte (5) ermöglicht. Weiterhin betrifft die vorliegende Erfindung eine Batterie mit einem derartigen Deckel (1). Weiterhin betrifft die vorliegende Erfindung ein Verfahren zur Herstellung eines derartigen Deckels (1).

VERFAHREN ZUR HERSTELLUNG VON MIT KERAMIKPARTIKELN UND KONTINUIERLICHER GLASPHASENSCHICHT BESCHICHTETEN POSITIVEN ELEKTRODENPARTIKELN UNTER VERWENDUNG VON NASSMISCHUNG UND EINSTUFIGER SINTERUNG

Absstract of: DE102025105464A1

Ein Verfahren zur Herstellung von positiven Elektrodenpartikeln, auf die Keramikpartikel und einer kontinuierliche Glasphasenschicht aufgetragen wird unter Verwendung einer Nassmischung und einer einstufigen Sinterung umfasst die folgenden Schritte: Vermischen einer Lithiumquelle, eines glasartigen Leitervorläufers, eines LLZO-Vorläufers und eines Dispergiermittels, um mithilfe eines Mischers eine erste Vorläufermassenaufschlämmung zu bilden; dann Vermischen eines Nickel-Kobalt-Manganhydroxid-Vorläufers und der ersten Vorläufermassenaufschlämmung, um eine zweite Vorläufermassenaufschlämmung zu bilden; dann Trocknen der zweiten Vorläufermassenaufschlämmung, um ein Vorläuferpulver zu erhalten; dann Platzierung des Vorläuferpulvers in einem Sinterofen und Durchführung einer sauerstoffunterstützten Sinterung, um ein gesintertes Pulver zu erhalten, das aus einer Vielzahl von positiven Elektrodenpartikeln besteht. Jeder der positiven Elektrodenpartikel umfasst einen mit einer Glasphasenschicht beschichteten NCM-Partikel und mehrere LLZO-Partikel.

ARTIFICIAL GRAPHITE ELECTRODE MATERIALS AND METHODS OF PRODUCING THE SAME

Absstract of: WO2026167580A1

The present invention relates to a method for producing artificial graphite electrode material. The method comprises mixing a carbonaceous material with a carbon precursor to form a precursor mixture; subjecting the precursor mixture to stepwise heating, including an intermediate soaking step at about 300°C to about 900°C to obtain a treated mixture; and heating the treated mixture at about 2400°C to about 3000°C to obtain the electrode material. The electrode material obtained from the method of present invention exhibits a degree of anisotropy of crystal grain alignment of less than about 3.5 and an average particle size of about 10 µm to about 20 µm. The particles are shaped before mixing to reduce edges and increase circularity. The electrode material is optionally coated with amorphous carbon at about 900°C to about 1300°C.

SOLID-STATE BATTERY CELL, POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, BATTERY DEVICE AND ELECTRIC DEVICE

Absstract of: WO2026166272A1

Provided in the present application are a solid-state battery cell, a positive electrode material and a preparation method therefor, a battery device and an electric device. The solid-state battery cell of the present application comprises a positive electrode sheet, a negative electrode sheet and a solid electrolyte, wherein the solid electrolyte comprises a sulfide; and the positive electrode sheet comprises a positive electrode material, and the positive electrode material comprises a positive electrode active material and a compound Li3-nA1-xBxCl6-a-bBraFb. The cycling stability and fast charging performance of the solid-state battery cell of the present application are both improved.

AKKUPACK, LADEGERÄT, LADESYSTEM UND VERFAHREN ZUM LADEN EINES AKKUPACKS MIT EINEM LADEGERÄT

Absstract of: DE102026102559A1

Ein Aspekt der vorliegenden Offenbarung sieht einen Akkupack (2) mit einem Akkumodul (16) und einer Steuerungsschaltung (18) vor. Die Steuerungsschaltung ist dazu ausgebildet, erste Kommunikationsdaten über serielle Kommunikation an ein Ladegerät (5; 6; 7) zu senden. Die ersten Kommunikationsdaten weisen einen Logikwert von Wahr an jeder einer ersten bestimmten Bitposition und einer zweiten bestimmten Bitposition auf, so dass das Ladegerät identifiziert, dass der Akkupack mit jeder einer ersten Ladesteuerung, einer zweiten Ladesteuerung und einer dritten Ladesteuerung kompatibel ist.

Battery Paste Mixer and Method

Absstract of: US20260233177A1

A battery paste mixer condensation assembly includes one or more ducts, a condenser, a basin, and one or more pipes. The duct(s) is in fluid communication with a battery paste mixer. Exiting gas from the battery paste mixer can travel through the duct(s). The condenser is situated downstream of the duct(s). The basin is situated near the condenser. Condensed liquid from the condenser is deposited in the basin. The pipe(s) is in fluid communication with the basin and is in fluid communication with the battery paste mixer. Deposited liquid in the basin can travel from the basin and to the battery paste mixer by way of the pipe(s).

BATTERY CELL TRANSPORT TRAY

Absstract of: WO2026168879A1

According to example embodiments, a battery cell transport tray is provided. The battery cell transport tray comprises: a bottom portion accommodating a battery cell; a first side wall erected upward from one end of the bottom portion; a second side wall erected upward from the other end of the bottom portion while facing the first side wall; and reinforcing side walls which are erected upward from the side ends of the bottom portion between the first side wall and the second side wall and installed with a height lower than the first side wall and the second side wall. The first side wall and the second side wall may each further include a plurality of handle openings on the upper portion thereof.

VERFAHREN ZUR HERSTELLUNG VON MIT KERAMIKPARTIKELN BESCHICHTETEN POSITIVEN ELEKTRODENPARTIKELN DURCH TROCKENMISCHUNG UND EINSTUFIGER SINTERUNG

Absstract of: DE102025105466A1

Ein Verfahren zur Herstellung von positiven Elektrodenpartikeln, welche mit Keramikpartikeln beschichtet sind, unter Verwendung einer Trockenmischung und einer einstufigen Sinterung umfasst die folgenden Schritte: Zusammenmischung eines Nickel-Kobalt-Manganhydroxid-Vorläufers, einer Lithiumquelle und eines LLZO-Vorläufers unter Verwendung eines Mischers, um eine Vorläufermischung zu bilden; dann Platzierung der Vorläufermischung in einen Sinterofen und Durchführung einer sauerstoffunterstützten Sinterung, um ein gesintertes Pulver zu erhalten, welches aus mehreren positiven Elektrodenpartikeln gebildet ist, wobei jeder der positiven Elektrodenpartikel einen entsprechenden NCM-Partikel umfasst, der mit mehreren entsprechenden LLZO-Partikeln beschichtet ist; dann Durchführung einer mechanischen Zerkleinerung des gesinterten Pulvers und Durchführung eines Siebvorgangs des gesinterten Pulvers unter Verwendung eines Siebs; dann werden die gesinterten Pulver mit mehreren ersten Kohlenstoffnanoröhren und mehreren amorphen Kohlenstoffen im Nanomaßstab gemischt, um mehrere mit Kohlenstoffmaterial beschichtete positive Elektrodenpartikel zu bilden.

CELL ASSEMBLY, BATTERY PACK INCLUDING SAME, AND VEHICLE

Absstract of: WO2026168774A1

The cell assembly according to an embodiment of the present invention may include: a battery cell stack; a module case for accommodating the battery cell stack; a busbar assembly positioned at at least one side of the battery cell stack; an end plate disposed at at least one side of the module case; and an insulating cover disposed at an inner side of the end plate, wherein a flame retardant layer is formed on the entire or a part of the surface of the insulating cover.

BATTERY DEVICE, ELECTRICAL DEVICE, AND ENERGY STORAGE DEVICE

Absstract of: WO2026166254A1

The present disclosure discloses a battery device, an electrical device, and an energy storage device. The battery device comprises a battery cell group, a heat conduction structure, and at least one heat exchange member. The battery cell group comprises a plurality of battery cells arranged in a first direction. The heat conduction structure is arranged on at least one side of the battery cells along the first direction. The heat exchange member is arranged on at least one side of the battery cell group along a second direction and is connected to the heat conduction structure, the second direction being perpendicular to the first direction. The battery device according to the embodiments of the present disclosure enables heat to be conducted from each battery cell to the heat exchange member via the heat conduction structure for heat dissipation, or enables heat to be conducted from the heat exchange member to each battery cell for heating. Hence, favorable heat exchange can be achieved without requiring a heat exchange member to be provided between every two battery cells, thereby facilitating a reduction in the number of components, lowering production costs, saving space within the battery device, and improving the energy density of the battery device.

BATTERY DEVICE AND ELECTRIC DEVICE

Absstract of: WO2026166281A1

A battery device (100) and an electric device (1000). The battery device (100) comprises: a case (10), at least one battery cell assembly (20), and a gas storage structure (50). The battery cell assembly (20) and the gas storage structure (50) are both accommodated in the case (10), the battery cell assembly (20) comprises a plurality of battery cells (30), each battery cell (30) is provided with a pressure relief structure (31), the gas storage structure (50) is located outside the battery cells (30), and at least part of the gas storage structure (50) is of hydrogen storage metal.

NEGATIVE ELECTRODE FOR SODIUM-ION BATTERY, METHOD FOR MANUFACTURING SAME, AND SODIUM-ION BATTERY INCLUDING SAME

Absstract of: WO2026168899A1

The present invention relates to a negative electrode for a sodium-ion battery, a method for manufacturing the negative electrode, and a sodium-ion battery comprising the negative electrode, wherein the negative electrode comprises: a negative electrode current collector; and a negative electrode active material layer positioned on at least one surface of the negative electrode current collector, and the negative electrode active material layer comprises hard carbon particles and graphite particles.

SOLID-STATE BATTERY CELL, SOLID ELECTROLYTE AND METHOD FOR PREPARING SAME, BATTERY DEVICE, AND ELECTRICAL DEVICE

Absstract of: WO2026166276A1

A solid-state battery cell, a solid electrolyte and a method for preparing same, a battery device, and an electrical device. The solid-state battery cell comprises a positive electrode sheet, a negative electrode sheet, and a solid electrolyte. The solid electrolyte comprises a sulfide, and at least part of the solid electrolyte adjacent to the positive electrode sheet comprises a compound Li 3-nA 1-xB xCl 6-a-bBr aF b, where A comprises any one element among Sc, Y, La, Ce, Nd, Gd, Dy, Ho, Er, Yb, B, Al, Ga, and In; B comprises any one element among Sc, Y, La, Ce, Nd, Gd, Dy, Ho, Er, Yb, Ti, Zr, Hf, and Rf; the elements in A and B are different; 0 ≤ x ≤ 0.7; 0 ≤ a ≤ 2; 0 < b ≤ 0.25; when the elements in A and B have a same valence state or when B does not exist, n = 0; and when the elements in A and B have different valence states, n = x. Hence, the cycling stability and fast-charging performance of the solid-state battery cell are improved.

CURRENT COLLECTOR AND BATTERY CELL, BATTERY PACK AND VEHICLE INCLUDING SAME

Absstract of: WO2026168865A1

A battery cell according to one embodiment of the present invention includes: an electrode assembly in which a first electrode, a second electrode and a separator interposed therebetween are wound with a winding axis as the center thereof to define a core and the outer circumferential surface thereof, the first electrode including a first uncoated portion provided at an end of a long side thereof in the winding direction and exposed to the outside of the separator without being coated with an active material layer, and at least a portion of the first uncoated portion itself being used as an electrode tab; a battery housing including an opening on one side thereof and accommodating the electrode assembly through the opening; cell terminals passing through a surface located on the opposite side of the opening of the battery housing; and a current collector including an edge portion disposed on one side of the electrode assembly, first uncoated portion coupling portions, which extend inward from the edge portion, are welded to the first uncoated portion and are disposed at a separation of 180 degrees so as to face each other, terminal coupling portions spaced apart from the first uncoated portion coupling portions and welded to the cell terminals, and a bridge portion, which connects the edge portion and the terminal coupling portions and is located between the first uncoated portion coupling portions.

VERFAHREN UNTER VERWENDUNG VON VORLÄUFERN ZUR HERSTELLUNG POSITIVER ELEKTRODENPARTIKEL MIT KERAMIKPARTIKELN UND KONTINUIERLICHER GLASPHASENSCHICHT

Absstract of: DE102025105461A1

Ein Verfahren unter Verwendung von Vorläufern zur Herstellung positiver Elektrodenpartikel mit Keramikpartikeln und kontinuierlicher Glasphasenschicht umfasst die folgenden Schritte: Vermischung einer Nickelquelle, einer Manganquelle, einer Kobaltquelle und eines ersten Dispersionsmittels, um eine Nickel-Kobalt-Mangan-Mischaufschlämmung zu bilden; dann Durchführung einer Trocknung und Sinterung der Nickel-Kobalt-Mangan-Mischaufschlämmung, um einen Nickel-Kobalt-Mangan-Vorläufer zu erhalten; dann Vermischung einer Lithiumquelle, eines glasartigen Leitervorläufers, eines LLZO-Vorläufers und eines zweiten Dispersionsmittels, um eine erste Vorläufermassenaufschlämmung zu bilden; dann Vermischung des Nickel-Kobalt-Mangan-Vorläufers und eines dritten Dispersionsmittels, um eine zweite Vorläufermassenaufschlämmung zu bilden und Vermischung der zweiten Vorläufermassenaufschlämmung mit der ersten Vorläufermassenaufschlämmung, um eine dritte Vorläufermassenaufschlämmung zu bilden; dann Trocknung der dritten Vorläufermassenaufschlämmung, um ein Vorläuferpulver zu erhalten; und anschließende Sinterung des Vorläuferpulvers, um die mit LLZO-Partikeln und einer Glasphasenschicht beschichteten positiven Elektrodenpartikel zu erhalten.

Battery Cell Assembly, Battery System Including Same, and Manufacturing Method of Same

Absstract of: US20260237816A1

0000 A battery cell assembly includes: a battery cell including an exterior material housing an electrode assembly therein, and a first terminal and a second terminal electrically connected to the electrode assembly and protruding outward from the exterior material; a cell case including a support surface facing one side of the battery cell, an opening surface facing the support surface, and first and second surfaces extending perpendicular to the support surface from opposite ends of the support surface toward the opening surface; a first bus bar electrically connected to the first terminal; a second bus bar electrically connected to the second terminal; and a bus bar frame including a first frame and a second frame each supporting the first bus bar and the second bus bar, and a connecting frame of which at least a portion protrudes from the opening surface and which includes the first frame and the second frame.

HERMETICALLY SEALED POLYMERIZED STRUCTURAL BATTERIES FOR WEARABLE DEVICES

Absstract of: US20260237727A1

0000 A pair of smart glasses includes a temple arm, wherein a portion of the temple arm is coated in a hermetic coating. The pair of smart glasses includes a battery disposed within the temple arm such that an electrolyte of the battery is in contact with the hermetic coating of the temple arm. The electrolyte is polymerized so that the electrolyte is bonded to the hermetic coating of the temple arm.

RECHARGEABLE LITHIUM BATTERIES

Absstract of: US20260237633A1

0000 Disclosed is a rechargeable lithium battery, the rechargeable lithium battery including a positive electrode, a negative electrode, and an electrolyte between the positive electrode and negative electrode. The negative electrode includes a negative electrode current collector and a negative electrode active material layer on the negative electrode current collector. The negative electrode active material layer includes amorphous carbon and a negative electrode active material. In the negative electrode active material layer, from an upper portion farther from the negative electrode collector to a lower portion closer to the negative electrode collector, an amount of the negative electrode active material increases and an amount of the amorphous carbon decreases. The rechargeable lithium battery has a ratio of a discharge capacity per unit area of the negative electrode to the discharge capacity per unit area of the positive electrode of less than or equal to about 1.

NONAQUEOUS ELECTROLYTE POWER STORAGE ELEMENT AND METHOD FOR MANUFACTURING NONAQUEOUS ELECTROLYTE POWER STORAGE ELEMENT

Absstract of: WO2026168504A1

A nonaqueous electrolyte power storage element according to one aspect of the present invention comprises: a positive electrode containing a sulfur-based active material; and a nonaqueous electrolyte containing an electrolyte salt, a fluorinated ether, and a cyclic sulfur-based compound. The cyclic sulfur-based compound is at least one selected from the group consisting of cyclic sulfonic acid esters and cyclic sulfuric acid esters. The content of the cyclic sulfur-based compound in the nonaqueous electrolyte is not less than 0.1 mass% to less than 10 mass%.

CATHODE FOR LITHIUM SECONDARY BATTERY, THE METHOD OF MANUFACTURING THE SAME AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

Absstract of: US20260237724A1

0000 The present disclosure relates to a cathode for a lithium secondary battery including a cathode current collector; and a cathode composite layer formed on the cathode current collector, wherein the cathode composite layer includes a first cathode composite layer on a side of the cathode current collector, and a second cathode composite layer on a surface side of the cathode composite layer, wherein the first cathode composite layer includes a first cathode active material of lithium transition metal composite oxide particles in forms of secondary particles in which primary particles are aggregated, and a binder, wherein the second cathode composite layer includes a second cathode active material of lithium transition metal composite oxide particles in forms of single particles, and a binder.

LITHIUM-SEKUNDÄRBATTERIE MIT EINEM GELPOLYMERELEKTROLYTEN UND VERFAHREN ZUR HERSTELLUNG DAVON

Absstract of: DE102025104710A1

Die vorliegende Erfindung betrifft eine Lithium-Sekundärbatterie, umfassend eine Anode, eine Kathode und einen Gelpolymerelektrolyt; wobei die Kathode ein aktives Kathodenmaterial umfasst; das aktive Kathodenmaterial lithiummanganreiches Oxid umfasst; die Anode ein aktives Anodenmaterial umfasst; das aktive Anodenmaterial Silicium umfasst; der Gelpolymerelektrolyt ein Polymer auf Basis eines vernetzbaren Monomers und ein Lithiumsalz umfasst; das vernetzbare Monomer mindestens drei radikalisch polymerisierbare Gruppen umfasst; und der Gelpolymerelektrolyt mindestens ein Additiv umfasst, das aus der Gruppe ausgewählt ist, die aus Tris(trimethylsilyl)borat (TMSB) und Fluorethylencarbonat (FEC) besteht; und die Erfindung ferner ein Verfahren zur Herstellung der Lithium-Sekundärbatterie betrifft.

VERFAHREN ZUR HERSTELLUNG POSITIVER ELEKTRODENPARTIKEL BESCHICHTET MIT KERAMIKPARTIKELN UND EINER GLASPHASENKONTINUIERLICHEN SCHICHT UNTER VERWENDUNG VON TROCKENMISCHUNG UND EINSTUFIGER SINTERUNG

Absstract of: DE102025105471A1

Ein Verfahren zur Herstellung von positiven Elektrodenpartikeln, auf denen Keramikpartike und eine kontinuierliche Glasphasenschicht aufgebracht sind, unter Verwendung einer Trockenmischung und einer einstufigen Sinterung, was die folgenden Schritte umfasst: Vermischung eines Nickel-Kobalt-Manganhydroxid-Vorläufers, einer Lithiumquelle, eines glasartigen Leitervorläufers und eines LLZO-Vorläufers unter Verwendung eines Mischers, um eine Vorläufermischung zu bilden; dann Platzierung der Vorläufermischung in einen Sinterofen und Durchführung einer sauerstoffunterstützten Sinterung, um ein gesintertes Pulver zu erhalten, welches aus mehreren positiven Elektrodenpartikeln gebildet ist, wobei jeder der positiven Elektrodenpartikel einen entsprechenden NCM-Partikel umfasst, der mit einer entsprechenden Glasphasenschicht und mehreren entsprechenden LLZO-Partikeln beschichtet ist; dann Durchführung einer mechanischen Zerkleinerung und eines Siebvorgangs des gesinterten Pulvers unter Verwendung eines Siebs; dann werden die gesinterten Pulver mit mehreren ersten Kohlenstoffnanoröhren und mehreren amorphen Kohlenstoffen im Nanomaßstab gemischt, um mehrere mit Kohlenstoffmaterial beschichtete positive Elektrodenpartikel zu bilden.

SEPARATOR FOR SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND SECONDARY BATTERY INCLUDING SAME

Absstract of: WO2026168983A1

A method for manufacturing a separator according to the present invention may comprise the steps of: preparing a substrate; preparing a composite metal oxide including a base metal and a transition metal; mixing the composite metal oxide, a conductive material, and a binder to prepare a coating layer source; and applying the coating layer source onto one surface of the substrate to manufacture the separator.

FIRE-PROOF BATTERY

Absstract of: WO2026169929A1

The present disclosure relates to a fire-proof battery, which solves a continuing problem of spontaneous explosion and fire exhibited by some batteries used for back-up energy storage for Solar or wind generation facilities or for grid stabilization. In particular, described herein are features of a flow-through cell which greatly reduce the probability of internal explosion. Also described herein are methods for fire suppression only possible with a flow-through system as described herein to prevent a short-circuit arc from growing out of control.

BATTERY PACK INTERCONNECT ASSEMBLY FOR A BATTERY PACK

Absstract of: US20260237860A1

A cell bussing web for forming a busbar interconnect for electrically connecting cell terminals of battery cells in a battery pack includes a metal sheet extending between first and second sides and having slots forming adjacent busbars in the metal sheet. The busbars. The metal sheet includes sacrificial connecting tabs spanning across the slots between the corresponding adjacent busbars to hold relative positions of the busbars in the matrix. Each busbar includes mating ends for mating with the corresponding cell terminals of the corresponding battery cells to electrically connect the battery cells in the battery pack. The sacrificial connecting tabs are configured to be removed to singulate the busbars and electrically separate the adjacent busbars from each other.

Secondary Battery

Absstract of: US20260237728A1

A secondary battery according to an aspect of the present disclosure includes a case, an electrode assembly accommodated inside the case, a vent hole formed in a lower surface of the case, a spacing member protruding from the lower surface to space the electrode assembly apart from the vent hole, a venting flow path disposed on a side of the spacing member on the lower surface, and a cap assembly sealing the case. Gas inside the case is guided by the spacing member along the venting flow path and discharged to the outside through the vent hole.

PROCESS FOR PRODUCING A SOLID ELECTROLYTE MATERIAL HAVING A LOW CARBON CONTENT

Absstract of: US20260237730A1

0000 Processes for producing sulfide-based solid electrolytes include contacting solid electrolyte precursors with molten sulfur. The resulting sulfide-based solid electrolyte has a low carbon content and large particle size. The solid electrolyte includes a crystalline phase, an amorphous phase, or a combination thereof.

CURRENT COLLECTOR ASSEMBLY WITH DIAGONAL BUSBARS

Absstract of: US20260237858A1

A battery module includes multiple diagonal busbars that electrically connects battery cells (e.g., prismatic battery cells) electrically in series and/or in parallel. The diagonal shape of the busbars allow the busbars to electrically couple to additionally battery cells, thus increasing the energy output of the battery module. Additionally, at least some components of a battery module may generally remain in the same or similar location.

BATTERY ASSEMBLY AND DEVICE INCLUDING SAME

Absstract of: WO2026168735A1

A battery assembly according to one embodiment of the present invention comprises: a battery cell stack in which a plurality of battery cells are stacked; a housing in which the battery cell stack is accommodated; an inlet and an outlet for circulating a coolant into the housing; and at least one cooling spacer positioned at at least one location between the battery cells. The cooling spacer includes at least one cooling hole through which the coolant moves.

APPARATUS AND METHOD FOR CONTROLLING VENTILATION, AND ENERGY STORAGE APPARATUS INCLUDING SAME

Absstract of: WO2026168833A1

An apparatus for controlling ventilation, according to one embodiment of the present invention, is provided in a battery container including one or more batteries, the apparatus comprising: a smoke detection unit for detecting smoke inside the battery container, and outputting a sensing signal when the smoke is detected; and a control unit for controlling, to be a turned-on state, the operation state of a ventilation unit provided in the battery container when the sensing signal is received, and outputting, to an external apparatus, a ventilation operation signal indicating that the operation state of the ventilation unit is controlled to be the turned-on state.

BATTERY UNIT HAVING REDUCED TEMPERATURE DEVIATION WITHIN BATTERY CELL AND COOLING PLATE INCLUDED THEREIN

Absstract of: WO2026168695A1

The battery unit according to an embodiment of the present invention may comprise: a battery cell stack comprising multiple battery cells; and a cooling plate for cooling the battery cell stack, wherein the cooling plate comprises two inlets through which a refrigerant is introduced and which are formed at different positions, and an outlet through which the refrigerant is discharged; the two inlets comprise a first inlet and a second inlet; and the directions in which the refrigerant is introduced through the first inlet and the second inlet are parallel to the direction in which the multiple battery cells are stacked.

BATTERY CELL, METHOD FOR MANUFACTURING SAME, AND BATTERY PACK AND VEHICLE COMPRISING SAME

Absstract of: WO2026168781A1

The present invention may comprise: an electrode assembly in which a first electrode, a second electrode, and a separator interposed therebetween are wound about a winding axis; a can configured to accommodate the electrode assembly through an open end formed on one side thereof; a lid covering the open end and having an injection port formed at the center thereof; an injection plug configured to be inserted into and seal the injection port; and a gasket interposed between the injection plug and the lid, wherein the gasket has at least three surfaces thereof in contact with an injection-port peripheral portion, surrounding the injection port, of the lid.

SYSTEMS AND METHODS FOR PRODUCING CARBON SOLIDS

Absstract of: WO2026169618A1

Described are systems for producing graphitic carbon solids, comprising a plasma pyrolysis reactor, an inter-stage coupler, and a solids processing column. Also described is a method of producing graphitic carbon solids, comprising directing a hydrocarbon feedgas into the plasma pyrolysis reactor of the system.

BATTERY CELL, AND BATTERY PACK AND VEHICLE INCLUDING BATTERY CELL

Absstract of: WO2026168782A1

A battery cell of the present invention comprises: an electrode assembly in which a first electrode, a second electrode and a separator interposed therebetween are wound about a winding axis, each of the first electrode and the second electrode including a first uncoated part and a second uncoated part, which are not coated with an active material layer; a can for accommodating the electrode assembly; and an electrode terminal, which covers a through-hole formed in the can and is electrically connected to the first uncoated part, wherein the first uncoated part and the second uncoated part can be arranged to face the same direction with respect to a winding axis direction.

CELL ARRAY STRUCTURE, AND BATTERY PACK AND VEHICLE INCLUDING SAME

Absstract of: WO2026168930A1

A cell array structure according to the present invention comprises: a plurality of battery cells; and at least one bus bar for electrically connecting the plurality of battery cells, wherein one part of the bus bar is coated with a refractory material and another part of the bus bar is not coated with the refractory material, and the bus bar is configured such that, when exposed to a high temperature, the part of the bus bar not coated with the refractory material melts before the part of the bus bar coated with the refractory material.

BATTERY MODULE, AND BATTERY PACK AND VEHICLE COMPRISING SAME

Absstract of: WO2026168780A1

A battery module according to the present invention may comprise: a cell stack including a plurality of battery cells; a case accommodating the cell stack and including a top plate having at least one first venting portion configured to discharge venting gas; a flexible cover disposed on the case, and including at least one second venting portion formed at a position corresponding to the first venting portion and configured to discharge the venting gas; and a hard cover disposed on the flexible cover and divided into a plurality of regions having thicknesses different from each other.

Verfahren zum Betreiben eines Thermomoduls in einem Notlauf, Computerprogrammprodukt, computerlesbares Speichermedium, Steuergerät, Thermomodul, Fahrzeug und indirektes Wärmetransportmittelkreis(lauf)system

Absstract of: DE102025104739A1

Es wird ein Notlaufverfahren für ein Thermomodul TM mit einer ersten, zweiten und dritten Flüssigkeitspumpe EWP1, EWP2, EWP3vorgeschlagen.Dabei wird die erste Flüssigkeitspumpe EWP1zum Betreiben eines Flüssigkeitskühlkreis(lauf)es KK, die zweite Flüssigkeitspumpe EWP2zum Betreiben eines Flüssigkeitsheizkreis(lauf)es HK und die dritte Flüssigkeitspumpe EWP3zum Betreiben eines - über eine Batterie B geführten - Flüssigkeitskreis(lauf)es verwendet.Ein elektrisch stellbares Ventilsystem des Thermomoduls TM wird dabei derart eingestellt bzw. betrieben,dass bei einem Ausfall der ersten oder zweiten Flüssigkeitspumpe EWP1, EWP2die dritte Flüssigkeitspumpe EWP3zur ausgefallenen ersten oder zweiten Flüssigkeitspumpe EWP1, EWP2fluidisch in Reihe geschaltet wird oderdass bei einem Ausfall der dritten Flüssigkeitspumpe EWP3die erste oder zweite Flüssigkeitspumpe EWP1, EWP2zur ausgefallenen dritten Flüssigkeitspumpe EWP3fluidisch in Reihe geschaltet wird.Es werden zudem ein Computerprogrammprodukt, ein computerlesbares Speichermedium, ein Steuergerät, ein Thermomodul, ein Fahrzeug sowie ein indirektes Wärmetransportmittelkreis(lauf)system vorgeschlagen.

BATTERY MODULE, BATTERY PACK AND VEHICLE COMPRISING BATTERY MODULE

Absstract of: WO2026168849A1

A battery module according to an embodiment of the present invention comprises: a cartridge assembly that includes a plurality of cartridges stacked in one direction and is provided with a cooling flow path; a plurality of battery cells accommodated between the stacked cartridges; and a busbar assembly for electrically connecting the plurality of battery cells, wherein an accommodation space configured to accommodate a connection member electrically connected to the busbar assembly is provided inside the cartridge assembly.

Kühleinrichtung für eine Batterie, Batterie, Verfahren zur Herstellung der Kühleinrichtung und der Batterie

Absstract of: DE102025104960A1

Kühleinrichtung (100) für eine Batterie, wobei die Kühleinrichtung (100) Gaskissen (112) und einen Kühlkanal (102) umfasst, wobei der Kühlkanal (102) zumindest in einem Abschnitt des Kühlkanals (102) zwischen den Gaskissen (112) angeordnet ist. Die Kühleinrichtung (100) umfassende Batterie, Verfahren zur Herstellung der Kühleinrichtung (100) und der Batterie.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME

Absstract of: US20260237870A1

0000 An electrode assembly, including a plurality of first electrode plates, a plurality of second electrode plates spaced apart from the plurality of first electrode plates, separators between the plurality of first electrode plates and the plurality of second electrode plates, and first electrode tabs connected to the plurality of first electrode plates, wherein the first electrode tabs include a plurality of first inner electrode tabs connected to some of the plurality of first electrode plates and a plurality of first outer electrode tabs connected to others of the plurality of first electrode plates, the plurality of first inner electrode tabs and the plurality of first outer electrode tabs being spaced apart from the plurality of first electrode plates.

ELECTRODE ASSAMBLY AND SECONDARY BATTERY COMPRISING THE SAME

Absstract of: US20260237757A1

An electrode assembly according to some embodiments may include a first electrode, a second electrode, and a separator between the first electrode and the second electrode. The separator may include a protrusion protruding from the first electrode and the second electrode, and a protective layer may be disposed on the protrusion.

POWER CONTROL METHOD, ELECTRONIC DEVICE, AND COMPUTER-READABLE MEDIUM

Absstract of: WO2026168747A1

An electronic device according to one embodiment of the present disclosure may comprise: a charging port; a first battery; a second battery; a first charging circuit electrically connected to the first battery and the second battery; a second charging circuit electrically connected to the charging port and the second battery; a memory for storing at least one instruction; and a processor operatively connected to the memory. For example, when executed by the processor, the at least one instruction can instruct the electronic device to: monitor a connection state between the charging port and an external power source; determine a target charging circuit from among the first charging circuit and the second charging circuit on the basis of the connection state; and charge the second battery on the basis of the target charging circuit.

Carbon and metal dual buffer layer to suppress lithium dendrite growth in solid-state batteries

Absstract of: US20260237677A1

0000 This disclosure provides systems, methods, and apparatus related to solid-state batteries. In one aspect, a structure includes a current collector, a layer of metal disposed on the current collector, and a layer of carbon disposed on the layer of metal.

VERFAHREN ZUR HERSTELLUNG POSITIVER ELEKTRODENPARTIKEL MIT KERAMIKPARTIKELN UND GLASPHASENVERBUNDSCHICHT UNTER VERWENDUNG VON VORLÄUFERSUBSTANZEN

Absstract of: DE102025105460A1

Ein Verfahren zur Herstellung positiver Elektrodenpartikel mit Keramikpartikeln und Glasphasenverbundschicht unter Verwendung von Vorläufersubstanzen umfasst die folgenden Schritte: Vermischung einer Nickelquelle, einer Manganquelle, einer Kobaltquelle und eines ersten Dispersionsmittels, um eine Nickel-Kobalt-Mangan-Mischaufschlämmung zu bilden; dann Durchführung einer Trocknung und Sinterung der Nickel-Kobalt-Mangan-Mischaufschlämmung, um einen Nickel-Kobalt-Mangan-Vorläufer zu erhalten; dann Vermischung einer Lithiumquelle, eines glasartigen Leitervorläufers, eines LLZO-Vorläufers und eines zweiten Dispersionsmittels, um eine erste Vorläufermassenaufschlämmung zu bilden; dann Vermischung des Nickel-Kobalt-Mangan-Vorläufers und eines dritten Dispersionsmittels, um eine zweite Vorläufermassenaufschlämmung zu bilden und Vermischung der zweiten Vorläufermassenaufschlämmung mit der ersten Vorläufermassenaufschlämmung, um eine dritte Vorläufermassenaufschlämmung zu bilden; dann Trocknung der dritten Vorläufermassenaufschlämmung, um ein Vorläuferpulver zu erhalten; und anschließende Sinterung des Vorläuferpulvers, um die mit LLZO-Partikeln und einer Glasphasenschicht beschichteten positiven Elektrodenpartikel zu erhalten.

PACKAGING MATERIAL FOR POWER STORAGE DEVICE, METHOD FOR MANUFACTURING PACKAGING MATERIAL, POWER STORAGE DEVICE, MOBILE BODY, AND ELECTRONIC APPARATUS

Absstract of: WO2026168611A1

This packaging material for a power storage device comprises a laminate including, from an outer side, at least a base material layer, a barrier layer, and a heat-sealable resin layer, in that order. The base material layer contains at least one of polyester and polyamide; the thickness of the base material layer is 40 μm or more; the barrier layer contains an aluminum alloy foil; and the thickness of the aluminum alloy foil is 55 μm or more. In a tensile test performed on the laminate under the measurement conditions of an environment of 25°C, a tensile speed of 300 mm/min, and a distance between chucks of 30 mm, the average value of tensile strength A and tensile strength B is less than 125 N/15 mm, the tensile strength A (N/15 mm) being measured when a measurement sample having a length of 15 mm in the TD direction and a length of 100 mm in the MD direction is displaced by 2% in the MD direction and the tensile strength B (N/15 mm) being measured when a measurement sample having a length of 15 mm in the MD direction and a length of 100 mm in the TD direction is displaced by 2% in the TD direction.

High-Entropy Oxide with Engineered Defects to Deliver Superior Ion Transport and High Capacity Under High-Rate Conditions

Absstract of: US20260237726A1

0000 A high entropy oxide composition comprises: (i) a first oxide having a formula (I): 0000 wherein x is in a range of 0 to less than 3, wherein each of M<1, >M<2, >M<3, >M<4>, and M<5 >comprise cations of a different transition metal, and M<6 >is nothing or at least one additional cation different from M<1>, M<2>, M<3>, M<4>, and M<5>, wherein the first oxide has a first phase structure, and (ii) a second oxide having a formula (II): 0000 wherein y is in a range of 0 to less than 2, wherein each of M<7, >M<8, >M<9, >M<10>, and M<11 >comprise cations of one of the different transition metals, and M<12 >comprises nothing or at least one additional cation different from M<7>, M<8>, M<9>, M<10>, and M<11>, wherein the second oxide has a second phase structure.

Verfahren zum Betrieb einer Batterie, Batteriemanagementsystem, Batterie und Kraftfahrzeug

Absstract of: DE102025105306A1

Beschrieben wird ein Verfahren zum Betrieb einer Batterie, umfassend einen Ladevorgang zum Laden der Batterie unter Verwendung eines Anodenpotenzialbeobachters zur Überwachung des Anodenpotentials mindestens einer von der Batterie umfassten Anode während des Ladevorgangs. Der Anodenpotenzialbeobachter ist derart konfiguriert, dass er reversibles Lithium-Plating zulässt und durch dynamische Anpassung der Ladeparameter sicherstellt, dass irreversibles Lithium-Plating vermieden wird. Der Anodenpotenzialbeobachter ist bevorzugt in ein Batteriemanagementsystem integriert, das Bestandteil einer Batterie und/oder eines Kraftfahrzeugs sein kann.

SENSOR FOR BATTERY SYSTEM MONITORING

Absstract of: WO2026167350A1

An optical strain sensor for use in a battery system comprising a planar optical waveguide having a planar geometry comprising a Bragg grating located in a core of the planar optical waveguide. The core extends longitudinally along a first direction of the planar optical waveguide and defines an optical propagation direction of the planar optical waveguide. A battery cell comprising the optical strain sensor. An inter-cell spacer comprising the optical strain sensor. A battery system comprising a plurality of the battery cells and/or a plurality of the inter-cell spacers.

ELECTRODE ASSEMBLY, SECONDARY BATTERY COMPRISING SAME, AND METHOD FOR MANUFACTURING ELECTRODE ASSEMBLY

Absstract of: WO2026168890A1

An electrode assembly according to an aspect of the present invention comprises: a plurality of positive electrode plates and a plurality of negative electrode plates which are alternately arranged; and separators interposed between the positive electrode plates and the negative electrode plates, wherein the separators include inner portions in contact with the positive electrode plates or the negative electrode plates and connection portions which connect the inner portions and protrude from side ends of the positive electrode plates, and at least one of the connection portions may be disposed to surround other connection portions.

POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

Absstract of: US20260237725A1

Disclosed are a positive electrode for a rechargeable lithium battery, and a rechargeable lithium battery including the positive electrode. The positive electrode for a rechargeable lithium battery includes a substrate, and a positive electrode active material layer on the substrate. The positive electrode active material layer includes MXene, a solid electrolyte, and a positive electrode active material. A distribution of the solid electrolyte increases from the lower portion to the upper portion of the positive electrode active material layer.

VERFAHREN UNTER VERWENDUNG VON NASSMISCHUNG UND EINSTUFIGER SINTERUNG ZUR HERSTELLUNG VON MIT KONTINUIERLICHER GLASPHASENSCHICHT BESCHICHTETEN POSITIVEN ELEKTRODENPARTIKELN

Absstract of: DE102025105468A1

Ein Verfahren zur Herstellung von positiven Elektrodenpartikeln, auf eine kontinuierlichen Glasphasenschicht unter Verwendung einer Nassmischung und einer einstufigen Sinterung aufgetragen ist umfasst die Schritte: Vermischung einer Lithiumquelle, eines glasartigen Leitervorläufers und eines Dispergiermittels, um mithilfe eines Mischers eine erste Vorläufermassenaufschlämmung zu bilden; dann Vermischen eines Nickel-Kobalt-Manganhydroxid-Vorläufers und der ersten Vorläufermassenaufschlämmung, um eine zweite Vorläufermassenaufschlämmung zu bilden; dann Trocknung der zweiten Vorläufermassenaufschlämmung, um ein Vorläuferpulver zu erhalten; dann Platzierung des Vorläuferpulvers in einem Sinterofen und Durchführung einer sauerstoffunterstützten Sinterung, um ein gesintertes Pulver zu erhalten, welche aus einer Vielzahl von positiven Elektrodenpartikeln besteht. Jeder der positiven Elektrodenpartikel umfasst einen NCM-Partikel, auf den eine Glasphasenschicht aufgebracht ist.

VERFAHREN UNTER VERWENDUNG VON VORLÄUFERN ZUR HERSTELLUNG POSITIVER ELEKTRODENPARTIKEL, WELCHE MIT KERAMIKAPRTIKELN UND EINER GLASPHASENVERBUNDSCHICHT BESCHICHTET SIND

Absstract of: DE102025105463A1

Ein Verfahren zur Herstellung von positiven Elektrodenpartikeln, auf die unter Verwendung von Vorläufern Keramikpartikel und eine kontinuierliche Glasphasenschicht aufgetragen sind umfasst die folgenden Schritte: Vermischung einer Nickelquelle, einer Manganquelle, einer Kobaltquelle und eines ersten Dispersionsmittels, um eine Nickel-Kobalt-Mangan-Mischaufschlämmung zu bilden; dann Durchführung einer Trocknung und Sinterung der Nickel-Kobalt-Mangan-Mischaufschlämmung, um einen Nickel-Kobalt-Mangan-Vorläufer zu erhalten; dann Vermischung einer Lithiumquelle, eines glasartigen Leitervorläufers, eines LLZO-Vorläufers und eines zweiten Dispersionsmittels, um eine erste Vorläufermassenaufschlämmung zu bilden; dann Vermischung des Nickel-Kobalt-Mangan-Vorläufers und eines dritten Dispersionsmittels, um eine zweite Vorläufermassenaufschlämmung zu bilden und Vermischung der zweiten Vorläufermassenaufschlämmung mit der ersten Vorläufermassenaufschlämmung, um eine dritte Vorläufermassenaufschlämmung zu bilden; dann Trocknung der dritten Vorläufermassenaufschlämmung, um ein Vorläuferpulver zu erhalten; und anschließende Sinterung des Vorläuferpulvers, um die mit LLZO-Partikeln und einer Glasphasenschicht beschichteten positiven Elektrodenpartikel zu erhalten.

BATTERY CELL AND INSULATOR APPLIED THERETO, AND BATTERY PACK AND VEHICLE COMPRISING SAME

Absstract of: WO2026168778A1

Provided are a battery cell and an insulator applied thereto, and a battery pack and a vehicle comprising same, the battery cell comprising: a battery can having a side wall member, a bottom member connected to one axial end of the side wall member, and an opening provided at the other axial end of the side wall member; an electrode assembly accommodated through the opening of the battery can and having a first electrode, a second electrode, and a separator interposed therebetween wound around a winding axis; a cap covering the opening of the battery can; and an insulator interposed between one end of the electrode assembly in the winding axis direction and the bottom member, having a central hole formed along the central axis direction, and including at least one central hole extension part recessed in the central axis direction from the outside in the radial direction from the central hole and extending along the circumferential direction.

ALL-SOLID-STATE BATTERY AND MANUFACTURING METHOD THEREFOR

Absstract of: WO2026168677A1

The present invention relates to an all-solid-state battery and, more specifically, to an all-solid-state battery comprising: a positive electrode layer comprising a positive electrode current collector and a positive electrode active material layer on the positive electrode current collector; a negative electrode layer comprising a negative electrode current collector and a coating layer on the negative electrode current collector; a solid electrolyte layer between the positive electrode layer and the negative electrode layer; an elastic sheet on the positive electrode layer; and a packaging member on the elastic sheet, wherein the packaging member extends from one surface of the elastic sheet to a side surface of the positive electrode layer along a side surface of the elastic sheet, and the packaging member surrounds at least a part of the side surface of the positive electrode layer.

SECONDARY BATTERY, SECONDARY BATTERY MANUFACTURING METHOD, AND BATTERY MODULE

Absstract of: US20260237865A1

0000 A secondary battery includes a case, an electrode assembly inside the case, a cap plate coupled to the case, the cap plate sealing the case, a tab member extending from the electrode assembly in a first direction, a terminal protruding outward from the cap plate, the terminal facing the tab member, a support plate in the tab member in a second direction intersecting the first direction, and a connecting member between the tab member and the terminal, the connecting member connecting the tab member and the terminal.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME

Absstract of: US20260237746A1

An electrode assembly includes first and second electrodes, and a separator, the first electrode including a first substrate including a first active material layer and a first non-coated part, a second substrate including a first active material layer and a second non-coated part, a first central substrate between the other surface of the first substrate and the other surface of the second substrate, and a first substrate tab extending from one end of the first central substrate, wherein the second electrode includes a third substrate including a second active material layer and a third non-coated part, a fourth substrate including a second active material layer and a fourth non-coated part, a second central substrate between a portion of the other surface of the third substrate and the fourth substrate, and a second substrate tab extending from one end of the second central substrate.

POWER STORAGE DEVICE

Absstract of: WO2026167994A1

A power storage device (1) comprises: an exterior case (2); a battery cell assembly (3) that is accommodated in the exterior case (2) and comprises a plurality of battery cells (21); and a flow path defining member (5) that is attached to an outer surface (13a) of the exterior case (2) and defines, together with the outer surface (13a) of the exterior case (2), an air flow path (6) which has an air supply port (6a) and an exhaust port (6b) and which is configured such that cooling air flows from the air supply port (6a) to the exhaust port (6b).

BATTERY PACK AND VEHICLE INCLUDING SAME

Absstract of: WO2026168723A1

A battery pack according to the present invention comprises: a battery unit; a pack tray which accommodates the battery unit, and includes a lower tray that supports the battery unit from below the battery unit; and a base plate configured to support the pack tray from below the pack tray, wherein the lower tray may include a plurality of ribs which protrude in a downward direction and upper surfaces of which are in direct contact with the battery unit.

Verfahren zum Prüfen einer Batteriezelle für eine Energiespeichervorrichtung insbesondere für ein Kraftfahrzeug, Vorrichtung und Prüf-Batteriezelle

Absstract of: DE102025105452A1

Verfahren zum Prüfen einer Batteriezelle für eine Energiespeichervorrichtung insbesondere für ein Kraftfahrzeug; wobei das Verfahren aufweist: Bereitstellen der Batteriezelle mit einem Zellwickel; Einkoppeln eines Laserstrahls in den Zellwickel zum möglichen Herbeiführen eines thermischen Events; und Erfassen von die Batteriezelle betreffenden Messdaten.

METHOD AND APPARATUS FOR MONITORING INJECTION EQUIPMENT OF BATTERY

Absstract of: WO2026168741A1

The present invention relates to a method for monitoring electrolyte injection equipment. The method for monitoring electrolyte injection equipment comprises the steps of: receiving a first ion conductivity value of a first electrolyte on the basis of a first ion conductivity sensor provided in a main electrolyte tank containing the first electrolyte; determining whether the received first ion conductivity value is equal to or greater than a first reference value; and providing a primary quality abnormality alarm when it is determined that the first ion conductivity value is equal to or greater than the first reference value.

SEMI-FINISHED PART FOR FORMING A HOUSING ELEMENT OF A CELL UNIT

Absstract of: US20260237804A1

A semi-finished part for forming a housing element of a cell unit includes a base element having a first side opposite a second side, a first side element, a second side element, and a third side element. The first side element is disposed contiguously with the base element at the first side. The second side element is disposed contiguously with the base element at the second side, and the third side element is disposed contiguously with the second side element at a side opposite the base element. The base element, the first side element, the second side element, and the third side element are disposed in a plane. The base element, the first side element, the second side element, and the third side element are adapted to form a circumferentially closed, fluid-tight main body in which a cell element of the cell unit can be disposed.

NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY

Absstract of: WO2026168616A1

A negative electrode for lithium ion secondary batteries, comprising a negative electrode active material and a binder. The negative electrode active material has composite particles and a carbon material. The composite particles have amorphous carbonaceous particles and amorphous silicon particles. The carbon material is at least one selection from the group consisting of graphite, hard carbon, and soft carbon. The negative electrode active material is at least partially covered with an Na-containing layer that contains Na. The binder contains a polyacrylic acid skeleton-bearing polymer having a weight-average molecular weight of at least 50,000 and not more than 3,000,000. The substitution rate of the carboxy group in the polyacrylic acid skeleton-bearing polymer with a sodium salt or lithium salt is at least 50% and not more than 90%.

Bodenanordnung mit Sensoreinrichtung für ein Medium

Absstract of: DE102025104969A1

Die Erfindung betrifft eine Bodenanordnung (100) zur Aufnahme einer Batteriespeichereinheit (22) eines Fahrzeugs (F) mit zumindest teilweisem elektrischem Antrieb, die Bodenanordnung (100) aufweisend: ein Bodenelement (10) zur Abdeckung einer Unterseite der Batteriespeichereinheit (22); wenigstens eine zwischen dem Bodenelement (10) und der Batteriespeichereinheit (22) angeordnete Sensoreinheit (30), die dazu eingerichtet ist, das Vorhandensein von einem flüssigem Medium (FL) in der Bodenanordnung (100) zu erfassen, wobei die Sensoreinheit (30) in einem flächig ausgebildeten ersten Abschnitt (32) zwei im Wesentlichen parallel zueinander und durch einen Messbereich (34) voneinander beabstandete elektrische Leiterabschnitte (L1, L2) umfasst. Dabei ist vorgesehen, dass die elektrischen Leiterabschnitte (L1, L2) in dem ersten Abschnitt (32) zwischen zwei diese vollständig umschließenden flächig ausgebildeten Isolationsschichten (41, 42) angeordnet sind, wobei die Isolationsschichten (41, 42) in dem Messbereich (34) direkt miteinander verbunden sind, so dass sich in dem Messbereich (34) beidseitig der Isolationsschichten (41, 42) ein jeweiliger oberer und unterer Messaußenbereich (36, 38) bildet.

COOLING STRUCTURE AND COOLER

Absstract of: WO2026168278A1

This cooling structure includes: a heat exchange unit which has a refrigerant passage through which a refrigerant flows and which exchanges heat with an object to be cooled that is in contact with an outer surface; a pair of tube bodies which are joined to the heat exchange unit to protrude in mutually opposite directions from the heat exchange unit, form a communication passage communicating with the refrigerant passage, and have flat outer peripheral surfaces; cap members which are movable in an axial direction of the tube bodies and include tubular portions into which end portions of the tube bodies in a protruding direction are inserted, closing portions that close the end portions of the tubular portions, and seal portions that are provided on inner peripheral surfaces of the tubular portions to come into contact with outer peripheral surfaces of the tube bodies and seal a gap between the tube bodies and the tubular portions; an outlet/inlet portion which is provided in one of a pair of the cap members to allow the refrigerant to enter and exit the communication passage; and a receiving portion which is disposed in a moving direction of the cap members to come into contact with the cap members and receive a refrigerant pressure.

Batteriezelle für eine Traktionsbatterie eines Kraftfahrzeugs, Verfahren zum Herstellen einer Batteriezelle sowie Verwendung einer Hülle in einer Batteriezelle

Absstract of: DE102025104836A1

Die Erfindung betrifft eine Batteriezelle (1) für eine Traktionsbatterie eines Kraftfahrzeugs, mit einer in einem Zellgehäuse angeordneten Elektrodenanordnung (2), umfassend mindestens eine Anode, mindestens eine Kathode und mindestens einen zwischen der Anode und der Kathode angeordneten Separator. Dabei ist vorgesehen, dass die Elektrodenanordnung (2) zumindest teilweise von einer elastischen und für einen Elektrolyten permeable Hülle (4) umgriffen ist, die eine reversible Ausdehnung der Elektrodenanordnung (2) zulässt. Die Erfindung betrifft weiterhin ein Verfahren zum Herstellen einer Batteriezelle (1) sowie eine Verwendung einer Hülle (4) in einer Batteriezelle (1).

BATTERY PACK AND ELECTRONIC DEVICE COMPRISING SAME

Absstract of: WO2026168887A1

A technical idea of the present invention provides a battery pack comprising: a pack housing which provides an inner space configured to allow a first cooling fluid to flow therein; a cell assembly which is disposed in the pack housing and comprises a plurality of battery cells, a cell housing providing an inner space for accommodating the plurality of battery cells, and an exhaust pipe coupled to the cell housing and having an exhaust channel; and a venting pipe which is connected to the pack housing and the exhaust pipe and has a venting channel communicating with the exhaust channel of the exhaust pipe.

Separators with Ion-Exchange Layers and Electrochemical Cells Comprising Such Separators

Absstract of: US20260237847A1

A rechargeable battery cell includes a composite separator having a substrate and an ion exchange material supported by the substrate. First and second electrode materials are separated from each other by the separator and an electrolyte contacts the first and second electrode materials and the separator. In some embodiments at least one of the first and second electrode materials includes a zinc (Zn) containing anode. In other embodiments, at least one of the first and second electrode materials includes a cathode including at least one of nickel hydroxide (Ni(OH)2), nickel oxyhydroxide (NiOOH), activated carbon and manganese dioxide (MnO2).

POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Absstract of: US20260237662A1

Provided are a positive electrode for a rechargeable lithium battery, and a rechargeable lithium battery including the positive electrode. The positive electrode for a rechargeable lithium battery has a structure in which a positive electrode current collector, a functional layer, and a positive electrode active material layer are stacked. The functional layer includes a lithium iron phosphate-based compound and a binder.

RECEPTACLE FOR A BATTERY PACK

Absstract of: US20260238027A1

A receptacle is for a battery pack with electrical connection contacts. The receptacle has electrical mating contacts corresponding to the electrical connection contacts. The receptacle is configured to push the battery pack by a push-in distance in a push-in direction into a contact position in the receptacle. In the contact position, the electrical mating contacts of the receptacle are electrically conductively connected to the electrical connection contacts of the battery pack. To protect the battery pack against deep discharging, provision is made for the receptacle to have a disconnection device for disconnecting the electrical connection between the electrical mating contacts and the electrical connection contacts of the battery pack. The disconnection device is configured to receive a disconnection signal to disconnect the electrical connection between the electrical mating contacts and the electrical connection contacts when the disconnection signal is received.

METHOD FOR REGENERATING CATHODE ACTIVE MATERIAL AND CATHODE ACTIVE MATERIAL REGENERATED THEREBY

Absstract of: WO2026169045A1

The present invention relates to a method for regenerating a cathode active material and a regenerated cathode active material regenerated thereby and, more specifically, to a method for regenerating a cathode active material, comprising the steps of: detaching a cathode active material from a waste cathode through heat treatment at a predetermined temperature; and milling the recovered cathode active material. Accordingly, the regenerated cathode active material may have a reduced specific surface area and reduced impurities derived from a coating agent such as carbon, and excellent electrical conductivity, and may provide excellent coating properties by lowering the viscosity of an electrode slurry comprising the regenerated cathode active material. When applied to a secondary battery, the cathode active material provides excellent battery characteristics, does not use a strong acid or an organic solvent and is therefore eco-friendly, and greatly improves economic feasibility and productivity since, through a simple process, the cathode active material can be regenerated as it is without decomposition of the cathode active material.

BATTERY CELL AND INSULATOR APPLIED THERETO, AND BATTERY PACK AND VEHICLE COMPRISING SAME

Absstract of: WO2026168814A1

The present invention provides a battery cell comprising: a battery can; an electrode assembly accommodated through an opening of the battery can and having a first electrode, a second electrode, and a separator interposed therebetween, which are wound around a winding axis; a cap covering the opening of the battery can; and an insulator which is arranged between one end of the electrode assembly in the winding axis direction and a bottom member, has a central hole formed along the central axis direction, and includes at least one central hole expansion part that is formed radially outward from the central hole along the circumferential direction and has a point at which stress is concentrated, on at least one side in the circumferential direction.

ENERGY STORAGE MODULE

Absstract of: US20260237796A1

An energy storage module includes a power generating element, and an outer casing that covers the power generating element. The outer casing includes: a first outer casing portion that covers a surface and a corner of the power generating element; a folded portion that is continuous with the first outer casing portion, protrudes from a side surface of the power generating element, and is folded back onto the side surface of the power generating element; and a second outer casing portion that is continuous with the folded portion and covers a corner of the first outer casing portion.

BATTERY PACK AND VEHICLE INCLUDING SAME

Absstract of: WO2026168848A1

A battery pack according to the present invention comprises: a plurality of battery cells arranged to be stacked along one direction; and a plurality of cooling plates which have cooling channels through which a coolant flows, and which are arranged between the stacked battery cells so as to cool the battery cells, wherein the cooling channels of the plurality of cooling plates can be formed to be connected in series with each other.

NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Absstract of: US20260237637A1

0000 The present invention relates to a negative electrode for a lithium secondary battery and a lithium secondary battery including the negative electrode, wherein, since the negative electrode of the present invention includes a silicon oxide (SiO, 0

LITHIUM-ION SECONDARY BATTERY

Absstract of: WO2026168540A1

This lithium-ion secondary battery comprises a negative electrode (30), a positive electrode (20), and an electrolyte between the negative electrode (30) and the positive electrode (20). The negative electrode (30) has a negative electrode active material. The negative electrode active material has composite particles and a carbon material. The composite particles include amorphous carbonaceous particles and amorphous silicon particles having an average primary particle size of 1-50 nm. The carbon material is at least one selected from the group consisting of graphite, hard carbon, and soft carbon. The negative electrode active material is at least partially covered with a Na-containing layer that contains Na. The electrolyte contains 0.1-1.5 mol/L of a lithium salt having imide anions.

Gehäusevorrichtung, Energiespeichersystem und Kraftfahrzeug

Absstract of: DE102025105235A1

Die vorliegende Erfindung betrifft eine Gehäusevorrichtung (10) zur Aufnahme von Zellvorrichtungen (110) zur Speicherung von elektrischer Energie für ein Kraftfahrzeug (150), die Gehäusevorrichtung (10) aufweisend einen Grundkörper (20) und eine Grundplatte (26), wobei der Grundkörper (20) ein Aufnahmevolumen (22) mit einer Vielzahl an Steckplätzen (24) zur Aufnahme der Zellvorrichtungen (110) umfasst, wobei jeder Steckplatz (24) jeweils zumindest eine Verbindungsvorrichtung (30) zur elektrischen und zur mechanischen Verbindung mit zumindest einer Zellvorrichtung (110) umfasst, wobei die Grundplatte (26) eine Vielzahl an Ausgasungs-Ausschnitten (28) für die Zellvorrichtungen (110) umfasst, wobei die Vielzahl an Steckplätzen (24) zur Aufnahme von Zellzwischenmaterial (120) zwischen den Zellvorrichtungen (110) ausgestaltet sind. Ferner betrifft die Erfindung ein Energiespeichersystem (100) für ein Kraftfahrzeug (150) mit zumindest einer Gehäusevorrichtung (10) und einer Vielzahl an Zellvorrichtungen (110) zur Speicherung von elektrischer Energie sowie ein Kraftfahrzeug (150) mit einem Energiespeichersystem.

BATTERY CELL AND ELECTRIC APPARATUS

Absstract of: WO2026165754A1

A battery cell and an electric apparatus. The battery cell comprises a battery cell casing, an electrode assembly, and a tab assembly, wherein the battery cell casing comprises a main body portion and a sealing portion; the electrode assembly is arranged in the main body portion; and the tab assembly comprises a tab and two pieces of insulating adhesive, the tab being connected to the electrode assembly and extending from the sealing portion, in the direction of thickness of the tab, the tab being arranged between the two pieces of insulating adhesive, and the insulating adhesive connecting the battery cell casing to the tab. At 25°C, the tensile force between the insulating adhesive and the battery cell casing and/or the tab ranges from 5 N/mm to 10 N/mm, thereby improving the packaging tensile force of the insulating adhesive under room temperature conditions and improving the packaging reliability of the battery cell under room temperature conditions; and at 120°C, the tensile force between the insulating adhesive and the battery cell casing and/or the tab ranges from 0.01 N/mm to 0.2 N/mm, thereby facilitating the rapid formation of a pressure relief channel after the battery cell expands, improving the heat dissipation efficiency and thus improving the safety performance of the battery cell.

INSULATING TAPE AND CYLINDRICAL SECONDARY BATTERY, BATTERY PACK, AND VEHICLE INCLUDING SAME

Absstract of: WO2026168818A1

An insulating tape according to an embodiment of the present invention comprises: a first region attached to a side surface of an electrode assembly; and a second region attached to a partial region of a first current collecting plate, wherein the second region has a plurality of hole blocking prevention grooves corresponding to alignment holes of the first current collecting plate.

Electrode Drying Apparatus and Electrode Manufacturing System

Absstract of: US20260235359A1

An electrode drying apparatus and an electrode manufacturing system are disclosed. According to one aspect of the present disclosure, there are provided an electrode drying apparatus comprising a drying chamber provided with an air supply duct and an exhaust duct, a transfer device configured to transfer a metal foil into the drying chamber, and a moisture supply device configured to supply moisture to the metal foil transferred into the drying chamber and an electrode manufacturing system comprising the same.

VERFAHREN ZUR HERSTELLUNG EINES HOCHVOLTSPEICHERS

Absstract of: DE102025105425A1

Verfahren zur Herstellung eines Hochvoltspeichers (1), insbesondere für ein Kraftfahrzeug, umfassend ein Gehäuseoberteil (3), in dem eine Vielzahl elektrischer Energiespeicherzellen (4) in einem Schaummaterial (5), insbesondere PUR-Schaum, angeordnet sind, wobei das Gehäuseoberteil (3) mit einem Gehäuseunterteil (8) verbunden wird, wobei wenigstens eine Kontaktfläche (7) des Schaummaterials (5) in dem Gehäuseoberteil (3) mittels Laserstrahlung (11) vorbehandelt wird und mit wenigstens einem Strukturabschnitt (9), insbesondere einer Stützstruktur, des Gehäuseunterteils (8) verbunden, insbesondere verklebt, wird.

FIRE-RETARDANT ASSEMBLY AND BATTERY ASSEMBLY INCLUDING THE SAME

Absstract of: US20260237813A1

The present disclosure relates to a fire-retardant assembly including a fire-retardant member including a fire-retardant material, and an exterior configured to accommodate the fire-retardant member therein. The exterior includes a housing part having a pillar shape, and a guide part disposed on a portion of one side surface of the housing part to have a shape protruding in a direction away from the housing part.

Ausdehnungskompensationseinrichtung für eine Batterie sowie Kraftfahrzeug

Absstract of: DE102025104829A1

Die Erfindung betrifft eine Ausdehnungskompensationseinrichtung (22) für eine Batterie (10), wobei die Ausdehnungskompensationseinrichtung (22) zumindest in einer ersten Richtung (x) komprimierbar ist, und ein erstes und ein zweites Begrenzungselement (26, 24) umfasst, die sich in der ersten Richtung (x) gegenüberliegen und die Ausdehnungskompensationseinrichtung (22) in und entgegen der ersten Richtung (x) begrenzen. Dabei ist vorgesehen, dass die Ausdehnungskompensationseinrichtung (22) mindestens ein Plattenpaar (30) mit einer ersten Platte (30a, 30b) und einer zweiten Platte (30b, 30a) umfasst, die in einem Zwischenraum (28) zwischen dem ersten und zweiten Begrenzungselement (26, 24) angeordnet sind, wobei die erste und zweite Platte (30a, 30b) in einer zur ersten Richtung (x) senkrechten zweiten Richtung (y, z) nebeneinander angeordnet sind, wobei das Plattenpaar (30) einen ersten Kompressionszustand (Z1) umfasst, in welchem die Ausdehnungskompensationseinrichtung (22) eine erste Kompressionseigenschaft aufweist, und einen zweiten Kompressionszustand (Z2) umfasst, in welchem die Ausdehnungskompensationseinrichtung (22) eine zweite Kompressionseigenschaft aufweist, die von der ersten Kompressionseigenschaft verschieden ist.

VERFAHREN ZUR HERSTELLUNG EINER ELEKTRISCHEN VERBINDUNGSEINRICHTUNG

Absstract of: DE102025105239A1

Verfahren zur Herstellung einer elektrischen Verbindungseinrichtung (1) für einen Hochvoltspeicher, insbesondere einen Hochvoltspeicher für ein Kraftfahrzeug, wobei die elektrische Verbindungseinrichtung (1) zur Verbindung der Verbindungseinrichtung (1) mit wenigstens einem elektrischen Anschluss wenigstens einen Kontaktbereich (2) aufweist, an dem ein Schmelzsicherungsbereich (4) angeordnet oder ausgebildet ist, mit dem der Kontaktbereich (2) elektrisch mit dem wenigstens einen elektrischen Anschluss verbunden wird, wobei eine ein Trennmittel (6) aufweisende Trägereinrichtung (5) zumindest abschnittsweise an dem Schmelzsicherungsbereich (4) angeordnet wird.

Bodenanordnung mit Sensoreinrichtung für ein Medium

Absstract of: DE102025104966A1

Die Erfindung betrifft eine Bodenanordnung (100) zur Aufnahme einer Batteriespeichereinheit (50) eines Fahrzeugs (F) mit zumindest teilweisem elektrischem Antrieb. Die Bodenanordnung (100) weist ein Bodenelement (10) zur Abdeckung einer Unterseite der Batteriespeichereinheit (52) und wenigstens eine zwischen dem Bodenelement (10) und der Batteriespeichereinheit (52) angeordnete Sensoreinheit (20) mit einem kapazitiven Abschnitt (22) und einem induktiven Abschnitt (Sensoreinheit 20) auf. Die Sensoreinheit (20) ist dazu eingerichtet, das Vorhandensein von einem flüssigen Medium (FL) in der Bodenanordnung (100) zu erfassen. Ein erster Leiterabschnitt (L1) des kapazitiven Abschnitts (22) und ein von dem ersten Leiterabschnitt (L1) unterschiedlicher zweiter Leiterabschnitt (L2) des kapazitiven Abschnitts (22) weisen jeweils einen schleifenförmigen Verlauf auf. Der erste und der zweite Leiterabschnitt (L1, L2) umfassen jeweils ein offenes Ende. Zwischen dem ersten Leiterabschnitt (L1) und dem zweiten Leiterabschnitt (L2) wird ein Sensorbereich (26) zur Erfassung des flüssigen Mediums (FL) gebildet. Dabei ist vorgesehen, dass der Verlauf des ersten Leiterabschnitts (L1) gegenläufig zu dem Verlauf des zweiten Leiterabschnitts (L2) ist.

BATTERY CONTAINER

Absstract of: WO2026168796A1

A battery container is disclosed. The battery container according to an embodiment of the present invention may comprise: a base panel assembly; guide pipes provided on the upper surface of the base panel assembly and communicating with the interior of the base panel assembly; container modules installed on the base panel assembly, each container module having first connection holes into which the guide pipes are inserted; and cables, each having a first portion disposed inside the base panel assembly and a second portion passing through one of the guide pipes.

POWER MANAGEMENT METHOD, ELECTRONIC DEVICE, AND COMPUTER-READABLE MEDIUM

Absstract of: WO2026168743A1

An electronic device according to an embodiment of the present disclosure may comprise a first battery, a second battery, and a transformation circuit electrically connected to the first battery and the second battery. For example, the transformation circuit may be configured to transform a first voltage of power supplied from the first battery into a second voltage corresponding to the second battery and provide the second voltage to the second battery.

ELECTROLYTE FOR ENERGY STORAGE COMPOSITES

Absstract of: WO2026165607A1

The present invention provides a novel, preferably fire-resistant, polymer electrolyte that has high ionic conductivity and is mechanically strong by providing a co-continuous nanocomposite consisting of a polymeric matrix having a porous network, the porous network having polymeric particles disposed therein, and wherein the polymeric particles are at least partially coated with an ionic liquid and a lithium salt. Also disclosed are methods of preparing a polymeric electrolyte, an energy storage composite comprising the polymeric electrolyte, and a battery comprising the polymer electrolyte. Preferred polymers are phenolic resins (or phenoplasts), and a preferred ionic liquid is EMIM TFSI, and a preferred lithium salt is LiTFSI.

BATTERY SYSTEM

Absstract of: US20260237770A1

An ECU executes a process including: acquiring a temperature distribution of the battery while the vehicle is stopped; setting a normal range and an abnormal range; performing heating control using ripple current; acquiring the temperature distribution after heating; determining whether there is an abnormality in the temperature change; and determining that delamination of the thermally conductive material has occurred when it is determined that there is an abnormality in the temperature change.

FIN-CELL ASSEMBLY AND BATTERY PACK COMPRISING SAME

Absstract of: WO2026168876A1

According to exemplary embodiments of the present invention, a fin-cell assembly may be provided. The fin-cell assembly may comprise: a battery cell; a cooling fin including a first portion on an upper portion of the battery cell and a second portion on a side portion of the battery cell; a heat transfer layer between the battery cell and the first portion of the cooling fin; and a pair of pad blocks which are between the first portion of the cooling fin and the upper portion of the battery cell, and respectively cover both ends of the heat transfer layer.

BATTERY PACK, VEHICLE INCLUDING SAME AND ENERGY STORAGE SYSTEM INCLUDING SAME

Absstract of: WO2026169030A1

A battery pack according to the present invention may comprise: a plurality of battery cells; a pack housing for accommodating the plurality of battery cells; a filling member filling at least a portion of the inner space of the pack housing; and a cell frame partitioning the plurality of battery cells and partition the filling member into a plurality of filling units.

Verfahren zum Puffern einer Abwärme eines Kältemittelkreis(lauf)es als Teil eines indirekten Wärmetransportmittelkreis(lauf)systems eines Elektrofahrzeugs, Computerprogrammprodukt, computerlesbares Speichermedium, Steuergerät, Thermomodul, Fahrzeug und indirektes Wärmetransportmittelkreis(lauf)system

Absstract of: DE102025104738A1

Es wird ein Verfahren zum Puffern einer Abwärme eines Kältemittelkreis(lauf)es 4 als Teil eines indirekten Wärmetransportmittelkreis(lauf)systems 2 eines Elektrofahrzeugs vorgeschlagen, wobei das Wärmetransportmittelkreis(lauf)system 2 neben dem Kältemittelkreis(lauf) 4 ein - an den Kältemittelkreis(lauf) 4 thermisch angebundenes - Flüssigkeitskreis(lauf)system 6 aufweist.Dabei wird ein elektrisch stellbares Ventilsystem eines - Flüssigkeit führenden - Thermomoduls TM des Flüssigkeitskreis(lauf)systems 6 derart eingestellt, dass die Abwärme des Kältemittelkreis(lauf)es 4 über einen - über einen Kondensator 10 des Kältemittelkreis(lauf)es 4 geführten - Flüssigkeitsheizkreis(lauf) HK einer Batterie B und / oder wenigstens einer Komponente eines elektrischen Antriebsstranges 18 des Elektrofahrzeugs unter Ausnutzung von deren thermischer Speicherkapazität zugeführt wird, um ein thermisch bedingtes Aus- und Wiedereinschalten des Kompressors K zu vermeiden.Es werden zudem ein Computerprogrammprodukt, ein computerlesbares Speichermedium, ein Steuergerät, ein Thermomodul, ein Fahrzeug sowie ein indirektes Wärmetransportmittelkreis(lauf)system vorgeschlagen.

Separators with Ion-Exchange Layers and Electrochemical Cells Comprising Such Separators

Absstract of: US20260237857A1

An electrochemical cell (e.g., zinc-based cell) comprises a positive electrode, a negative electrode, and a separator positioned therebetween. The separator comprises a porous substrate and an ion exchange layer supported on the substrate. The ion exchange layer may penetrate into 1-100% of the substrate thickness to form a mechanically integrated composite that resists zinc dendrite penetration while permitting ionic transport. The ion exchange layer may be substantially non-porous or microporous with pores smaller than 1 micrometer and may include functional groups selected to provide cation or anion selectivity. Experimental results demonstrate enhanced flexibility, improved chemical stability in alkaline electrolyte, and improved mechanical performance compared to standalone ion-exchange films.

Modulare Steckverbindung einer Sekondärzelle aus Sandwitschbauweise mit nachhaltiger Isolierung der Kontakte

Absstract of: DE102025000498A1

Eine Sekundärzelle mit nachhaltiger Isolierung. Die Schutzfolie der einzelnen Zellen wird durchstoßen und bleibt im Verbau ohne Entsorgung dieser Schutzfolie. Die Verbinder lassen ein verpolen nicht zu. Sind die Verbinder montiert lässt sich die Spannung an jeder Zelle messen.Schadhafte Zellen können ermittelt und getauscht werden .Die Zelle selbst wird in Sandwich-Bauweise aus Lotplatierten Teilen und Lotpaste zusammengebaut und final im Lötofen gelötet.

METHOD FOR THE MANUFACTURE OF A CATHODE ACTIVE MATERIAL

Absstract of: US20260237650A1

0000 A method for the manufacture of a cathode active material includes contacting a transition metal oxyhydroxide with an alkali metal source to form an oxyhydroxide intermediate having alkali metal cations inserted therein, and heat treating the oxyhydroxide intermediate to form the cathode active material. Cathode active materials and oxyhydroxide metal precursor compositions are also described herein.

EXTERIOR MATERIAL FOR POWER STORAGE DEVICE, METHOD FOR MANUFACTURING SAME, POWER STORAGE DEVICE, MOBILE BODY, AND ELECTRONIC APPARATUS

Absstract of: WO2026168612A1

Provided is an exterior material for a power storage, the exterior material being composed of a laminate that includes in the following order, at least a substrate layer, a barrier layer, and a heat-fusible resin layer, wherein: the substrate layer includes at least one among polyester and polyamide; the substrate layer has a thickness of at least 40 μm; the barrier layer includes an aluminum alloy foil; the aluminum alloy foil has a thickness of at least 55 μm; and the laminate has an average value of slopes of tensile strengths of less than 950 MPa according to the following measurement. (Measurement) For the laminate, four types of test samples are prepared, each having a length of 100 mm in the MD direction, the TD direction, the 45° direction between MD and TD, and the −45° direction between MD and TD, and having a width, orthogonal to the length direction, of 15 mm. A tensile test is performed on the test samples under conditions of 25 °C, a tensile speed of 300 mm/min, and a chuck-to-chuck distance of 30 mm. The tensile strength at a displacement of 0.5% to 2.0% in the length direction is measured, and an average value of slopes of tensile strengths in the four directions is calculated. The slope of each tensile strength is calculated using the following equation. Slope of each tensile strength=tensile strength at 2.0% displacement (MPa) − tensile strength at 0.5% displacement (MPa)/(0.02−0.005)

CHARGING MANAGEMENT DEVICE AND OPERATION METHOD THEREOF

Absstract of: WO2026168808A1

A charging management device according to an embodiment disclosed in the present document may comprise: an interface for acquiring a C-rate value at which a battery is charged and a voltage value of the battery during a charging process in which a charging period and a rest period are repeated; and a controller for calculating an internal resistance value of the battery on the basis of a variation in the voltage value, generating an SOC-internal resistance profile including a correlation between the internal resistance value and an SOC of the battery, identifying a diagnosis target SOC range on the basis of the C-rate value, calculating, in the SOC-internal resistance profile, moving averages of internal resistance values included in the diagnosis target SOC range, and controlling charging of the battery on the basis of a magnitude relationship of the calculated moving averages.

ANISOTROPIC THERMAL CONDUCTIVITY LAYER FOR A BATTERY CELL GROUP ASSEMBLY

Absstract of: US20260237780A1

0000 A battery cell group assembly includes a cooling plate, one or more battery cells operably coupled to the cooling plate, and one or more thermal insulators disposed between the one or more battery cells. The battery cell group assembly also includes an anisotropic thermal conductivity layer operably coupled to the one or more battery cells and the one or more thermal insulators. The anisotropic thermal conductivity layer is configured to redirect heat from the one or more battery cells to the cooling plate.

ENERGY STORAGE CIRCUIT

Absstract of: US20260235687A1

An energy storage circuit is provided. The energy storage circuit includes a battery module formed of a plurality of battery cells, a current sense resistor, and a controller. Each battery cell is coupled to a corresponding cell resistor via a switch. The controller is operable to arrange the switches in a first configuration to perform an impedance measurement of one or more battery cells in the battery module. In the first configuration the cell resistors are coupled in series with each other and with the current sense resistor.

INTERNAL SHORT-CIRCUIT DETECTING METHOD AND INTERNAL SHORT-CIRCUIT DETECTING SYSTEM OF BATTERY MODULE

Absstract of: US20260235681A1

0000 An internal short-circuit detecting method includes obtaining a reference current-time data and a reference voltage-time data; obtaining a current-time data and a voltage-time data of a testing battery module; calculating a current integral quantity of the current-time data, a voltage average value of the voltage-time data, and a reference current integral quantity of the reference current-time data by a battery-cell internal short-circuit model; calculating a difference value between the current integral quantity and the reference current integral quantity to obtain an electric leakage quantity; calculating an internal short-circuit impedance value of the testing battery module; calculating a ratio value of the internal short-circuit impedance value to a square value of a value of N by a battery-cell internal short-circuit estimation model to obtain an estimated minimum internal short-circuit impedance value of one of an N quantities of battery cells of the testing battery module.

STACKED CURVED SOLID-STATE BATTERY CELLS AND BATTERIES, AND METHODS OF MAKING AND USING THE SAME

Absstract of: US20260237810A1

0000 A curved solid-state battery and a method of making the same are disclosed. The battery includes a plurality of curved, stacked solid-state battery cells and first and second terminals on opposite sides or ends of the battery. Each battery cell comprises a cathode current collector (CCC), a cathode on the CCC, a solid-state electrolyte on the cathode, and an anode current collector (ACC) on the electrolyte. The method includes making a plurality of solid-state battery cells on a conductive metal or metal alloy substrate, stacking pairs of the battery cells face-to-face using an adhesive to create a plurality of cell pairs, stacking at least some of the cell pairs, compressing the stacked cell pairs in a shaping device to form curved stacked cell pairs, and terminating first and second edges of the curved stacked cell pairs with a flexible conductive adhesive.

POSITIVE ELECTRODE AND LITHIUM-ION SECONDARY BATTERY

Absstract of: US20260237723A1

0000 There is provided a positive electrode of a lithium-ion secondary battery, the positive electrode including: a first region facing a separator; and a second region facing a current collector, in which the first region contains a first lithium manganese iron phosphate represented by Formula (1) as a general formula, the second region contains a second lithium manganese iron phosphate represented by Formula (2) as a general formula, and aMnFePO<4 >(0.50≤α≤1.5, 0FePO<4 >(0.50≤β≤1.5, 0