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MANUFACTURING LINE, PROCESS, AND SINTERED ARTICLE

Resumen de: US20260243510A1

0000 A method of manufacturing ceramic tape includes a step of directing a tape of partially-sintered ceramic into a furnace. The tape is partially-sintered such that grains of the ceramic are fused to one another yet the tape still includes at least 10% porosity by volume, where the porosity refers to volume of the tape unoccupied by the ceramic. The method further includes steps of conveying the tape through the furnace and further sintering the tape as the tape is conveyed through the furnace. The porosity of the tape decreases during the further sintering step.

BIDIRECTIONAL ADAPTIVE TERMINAL VOLTAGE (BATV) WITH A BATTERY PACK

Resumen de: US20260246283A1

0000 A Bidirectional Adaptive Terminal Voltage (BATV) system has a battery system to be integrated into various devices (or external loads), without having to modify the electrical characteristics of the devices. The battery system includes a battery cell stack and a battery management system electrically coupled with one another. The battery management system is coupled with the BATV system, which is a bidirectional converter configured to operate in either a buck or boost mode, depending on the voltage conditions of an external load when power is required to be delivered from the battery system to the external load. When the battery system is being recharged from an external power supply or from regenerative energy absorption, the BATV system also operates in either buck or boost mode, as required by recharging conditions.

BATTERY MODULE

Resumen de: US20260246026A1

A battery module comprises a battery sub-module including one or more battery cells, and a barrier disposed to face one side surface of the battery sub-module, in which the barrier includes a rigid member supporting the battery sub-module, and a heat absorbing member accommodated in the rigid member to absorb heat generated by the one or more battery cells.

AMINO-FUNCTIONALIZED POLYSILOXANE COMPOUND AND USE THEREOF, AND ELECTROCHEMICAL ENERGY STORAGE DEVICE USING SAME AS ELECTROLYTE SOLUTION

Resumen de: US20260242399A1

0000 An amino-functionalized polysiloxane compound and a use thereof, and electrochemical energy storage devices using the same as an electrolyte solution are provided. The amino-functionalized polysiloxane compound represented by formula (I) and an electrolyte solution comprising the compound, 0000 wherein n is an integer of 1-4, R<1 >is selected from any one of C1-C5 alkyl and alkoxy; R<2>, R<3 >and R<4 >are selected from alkyl, alkoxy, —(CH<2>)<3>(OCH<2>CH<2>)N(CH<3>)<2>, wherein x is 1-3, and R<2>, R<3 >and R<4 >must have a group selected from —(CH<2>)<3>(OCH<2>CH<2>)N(CH<3>)<2>.

ZINC-IODINE BATTERY

Resumen de: US20260245980A1

0000 An aqueous rechargeable zinc-iodine battery includes an aqueous electrolyte solution including zinc-iodine; a zinc anode; and a double-layered cathode having: a conductive substrate, and an adsorptive layer disposed over the conductive substrate.

BATTERY ASSEMBLY AND ELECTRICAL APPARATUS

Resumen de: 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

CONNECTOR, BATTERY, ELECTRICAL DEVICE, AND ENERGY STORAGE DEVICE

Resumen de: 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).

ENERGY STORAGE SYSTEM SWITCHING MANAGEMENT METHOD

Resumen de: 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.

BUSBAR, BATTERY PACK, AND VEHICLE

Resumen de: 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).

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

Resumen de: 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

Resumen de: 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.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: 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.

SECONDARY BATTERY AND ELECTRIC APPARATUS

Resumen de: 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.

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

Resumen de: 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.

NEGATIVE ELECTRODE SHEET, BATTERY CELL AND ELECTRIC DEVICE

Resumen de: 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

Resumen de: 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.

HEAT DISSIPATION SYSTEM AND ENERGY STORAGE SYSTEM

Resumen de: 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

Resumen de: 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

ELECTROLYTE INJECTION SYSTEM AND ELECTROLYTE INJECTION METHOD

Resumen de: 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.

COATING MECHANISM AND COATING DEVICE

Resumen de: 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.

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

Resumen de: 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).

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

Resumen de: 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

Resumen de: 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.

DIE-CUTTING METHOD AND DIE-CUTTING MACHINE

Resumen de: 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.

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

Nº publicación: EP4794026A1 19/08/2026

Solicitante:

CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited

Resumen de: 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.