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185
results.
Updated on
20/08/2026 [07:53:00]
Results 100 to 125 of 185
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).
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.
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.
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.
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.
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.
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.
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.
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.
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).
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.
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.
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
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.
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.
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.
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.
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.
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.
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.
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.
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.
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).
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.
Nº publicación: EP4792942A1 19/08/2026
Applicant:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited
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.
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