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POWER SUPPLY DEVICE AND METHOD FOR MANUFACTURING SAME

Resumen de: EP4832185A1

0001 A power supply device includes: a plurality of secondary battery cells each having cell end faces on which electrodes are provided; one or more battery blocks that house the plurality of secondary battery cells; and an exterior case that houses the one or more battery blocks. In each battery block of the one or more battery blocks, a cooling air path through which cooling air flows is defined between an inner surface of the battery block and a surface of a cell intermediate region of each of the plurality of secondary battery cells housed in the battery block, the cell intermediate region being located between two end regions contiguous with the respective cell end faces. The exterior case includes an external opening portion that communicates with the cooling air path. The power supply device further includes one or more electrode waterproof portions each of which is interposed between the battery block and a corresponding cell end face of a secondary battery cell among the plurality of secondary battery cells housed in the battery block, to prevent water from the cooling air path from reaching a corresponding electrode of the secondary battery cell.

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4832236A1

0001 Provided is a non-aqueous electrolyte secondary battery comprising an electrode body in which a belt-form positive electrode (11) and a belt-form negative electrode (12) are wound with a separator interposed therebetween, wherein the non-aqueous electrolyte secondary battery is characterized in that: the surface of the positive electrode (11) is provided with a positive electrode current collector exposed portion (34) where a positive electrode current collector is exposed; the positive electrode current collector exposed portion (34) is covered by a protective tape (50); the protective tape (50) has a facing region (51) that faces the negative electrode (12), and a non-facing region (52) that does not face the negative electrode (12); and the non-facing region (52) is provided with at least one or more notches (53) that extend from an upper end (50A) of the protective tape (50) toward a lower-end (50B) side of the protective tape (50).

ELECTRODE SHEET TANDEM ROLLING APPARATUS AND TANDEM ROLLING METHOD

Resumen de: EP4830909A1

0001 According to an embodiment of the present disclosure, provided is a tandem rolling apparatus for rolling an electrode sheet, comprising a coating portion in which an electrode active material slurry is coated on at least one surface of a current collector and a non-coating portion in which an electrode active material slurry is not coated, the apparatus comprising: a rolling unit comprising a first rolling roll disposed on the upper and lower sides of the electrode sheet to subject the electrode sheet to primary rolling, and a second rolling roll disposed on the upper and lower sides of the electrode sheet to subject the primary rolled electrode sheet to secondary rolling, two or more transport rolls that transport the electrode sheet, a load cell that monitors the tension of the electrode sheet passing through the second rolling roll, a cooling unit that comprises a plurality of cooling rolls provided spaced apart from each other along the transport direction of the electrode sheet so as to cool the electrode sheet, and a nip roll in contact with a rear cooling roll located at the terminal of the transport direction among the cooling rolls, and a control unit that adjusts an upper limit torque of the cooling rolls in consideration of the transport speed of the electrode sheet.

BATTERY AND ELECTRICAL APPARATUS

Resumen de: EP4832168A1

0001 The present application relates to a battery and an electrical apparatus. The battery comprises a case body, a battery cell and a thermal management component, the battery cell being arranged in the case body, and the thermal management component being arranged in the case body and used for accommodating a heat exchange medium so as to adjust the temperature of the battery cell. The thermal management component comprises: a heat exchange tube, having a heat exchange flow channel, end portions of the heat exchange tube being ports of the heat exchange flow channel; and current collectors, fitted to the end portions of the heat exchange tube and communicated with the ports, wherein the heat exchange medium can flow into the heat exchange flow channel from the current collectors or flow into the current collectors from the heat exchange flow channel, and at least one of the current collectors and the heat exchange tube is a plastic structure. In the present application, the current collectors are fitted to the end portions of the heat exchange tube, and connection between the current collectors and the heat exchange tube is achieved by means of connection members, such that the heat exchange tube and the current collectors can be well attached via the surfaces of the end portions, and the connection between the heat exchange tube and the current collectors is achieved by means of the connection members, thus improving the connection stability between the heat exchange tu

BATTERY APPARATUS AND ELECTRICAL DEVICE

Resumen de: EP4832157A1

The present application relates to the technical field of battery heat exchange, and specifically discloses a battery apparatus (100) and an electric device (1000). The battery apparatus (100) includes a case (110), a battery cell assembly (120), and a heat exchanger (400). The battery cell assembly (120) and the heat exchanger (400) are disposed in the case (110) and are configured to exchange heat. The heat exchanger (400) includes a heat exchange tube (410), an adapter portion (420), and a manifold (430). The heat exchange tube (410) includes a plurality of heat exchange channels (411). The adapter portion (420) is sleeved over one end of the heat exchange tube (410) and is provided with a plurality of adapter channels (421). The manifold (430) is fixed to the adapter portion (420) and is provided with a collection port (431) and at least one flow guiding channel (435). The collection port (431) is in communication with at least one of the heat exchange channels (411), and at least two of the heat exchange channels (411) are in communication with each other via the flow guiding channel (435) and the adapter channel (421) to define a heat exchange loop (450) having at least one turning portion (451).

BATTERY WINDING APPARATUS, BATTERY PRODUCTION LINE AND CONTROL METHOD THEREFOR

Resumen de: EP4832127A1

A battery winding apparatus (1), a battery production line, and a control method therefor, which belong to the technical field of battery production. The battery winding apparatus includes: a support member (11); an alignment roller set (13), movably installed on the support member and used for aligning a plurality of composite electrode sheets (2); a winding needle (12), rotatably installed on the support member (11) and used for winding the plurality of composite electrode sheets (2); a feeding roller set (14), movably installed on the support member (11) between a standby station and a clamping station in a first direction, and configured to, when located at the clamping station, clamp a blank separator of one composite electrode sheet (2) between the winding needle (12) and the alignment roller set (13) and move in a second direction to adjust a distance between two composite electrode sheets (2); and a cutter assembly (15), movably installed on the support member (11) and used for cutting off the composite electrode sheets (2).

Battery cell heater and battery

Resumen de: GB2705700A

The battery heater comprises a main body for wrapping around the sides of a battery cell and a first tab portion 11 for folding over the end of a battery cell, the first tab comprises a temperature sensor 30 and the main body comprises a resistive heating element 20. The heater may comprise a flexible substrate comprising a resistive conductor. The temperature sensor may comprise a thermistor on the substrate. There may be a conductive layer on the flexible substrate which is suitable for contacting an outer casing of the battery cell. The cell heater may comprise a second tab for contacting an adjacent battery. The conductive substrate and resistive conductor may be on opposite sides of the substrate. The heater may comprise a third tab to connect to a circuit board. There may be a battery which comprises battery cells wrapped in the cell heater. The battery may comprise an insulation layer around the battery cells. Fig 1

Cover assembly for a battery cell

Resumen de: GB2705816A

A cover assembly 10, for a battery cell, comprises at least one cover plate 1, aperture 12, and aperture mounted pole piece 5. Electrically insulating member 3, partly in the aperture, and along with sealing element 4, are arranged between pole piece and cover plate. The internally arranged sealing element may comprise an aperture, surround the internal end of cover plate aperture 12 and comprise a three-layer sealant strip stack comprising polymer tape and/or hot melt adhesive. An insulating plate 2 may be arranged internal to the cover plate, allowing overlapping oval 12 and rectangular apertures 14. The pole piece may comprise internally/externally projecting 18 and flat base 16 portions within aperture 14. The insulating member may comprise moulded plastic and/or a deformable softened polymer gasket and comprise a first internal (34,Fig.4) and second lip/flange portion (32,Fig.4). A battery cell and method for manufacturing a cover assembly are also provided. (Figure 1)

POSITIVE ELECTRODE PARTICLES AND PREPARATION METHOD THEREOF, POSITIVE ELECTRODE PLATE, SODIUM BATTERY, AND ENERGY STORAGE APPARATUS

Resumen de: EP4832096A1

The present application provides positive electrode particles and a preparation method thereof, a positive electrode plate, a sodium battery, and an energy storage apparatus. The positive electrode particles provided in an embodiment of the present disclosure include sodium iron phosphate pyrophosphate composite particles. Each sodium iron phosphate pyrophosphate composite particle includes a sodium iron phosphate pyrophosphate particle and a carbon coating layer coated on a surface of the sodium iron phosphate pyrophosphate particle. The positive electrode particles include gray particles and golden particles, a quantity proportion Z of the gray particles among the positive electrode particles satisfying 0.8≤Z≤1.

ELECTRODE ASSEMBLY

Resumen de: EP4832066A1

0001 The present specification discloses an electrode assembly and a secondary battery. The electrode assembly can exhibit low resistance and excellent electrical characteristics in a normal state, and secure stability by being rapidly converted into an insulator in an abnormal state. The present specification also discloses a secondary battery comprising the electrode assembly.

POSITIVE ELECTRODE MATERIAL, AND POSITIVE ELECTRODE COMPRISING SAME AND LITHIUM SECONDARY BATTERY

Resumen de: EP4832094A1

The present invention relates to a positive electrode material that may improve performance of a lithium secondary battery, and a positive electrode and a lithium secondary battery including the same. The positive electrode material includes a first positive electrode active material having an olivine structure, and a second positive electrode active material having a layered structure, and a voltage drop (χ) according to Equation 1 described in the present specification of the first positive electrode active material falls within a specific range.

BATTERY MODULE

Resumen de: EP4832218A1

0001 A battery module (100) includes a plurality of battery cells (10), an upper cover (140) covering the plurality of battery cells (10) and a fire extinguishing unit (130) arranged between the upper cover (140) and the plurality of battery cells (10). The fire extinguishing unit (130) includes a first case (110, 610, 710) and a second case (120), which is combined with the first case (110, 610, 710) and accommodates a fire extinguishing medium (115, 615, 715) together with the first case (110, 610, 710). The first case (110, 610, 710) includes a plurality of openings penetrating the first case (110, 610, 710) in a thickness direction of the first case (110, 610, 710) and a cover part (111, 611, 711) positioned within each of the plurality of openings to block each of the plurality of openings. A coating layer (113, 613, 713) is positioned on a bottom surface of the first case (110, 610, 710), covers the plurality of openings, and includes an ignition agent, an oxidizing agent, and a resin.

CONTROL BOX, ENERGY STORAGE APPARATUS AND ELECTRICAL SYSTEM

Resumen de: EP4832200A1

The present application relates to a control box, an energy storage apparatus and an electrical system. The control box comprises at least two control modules and wiring assemblies, wherein each of the control modules is used for controlling the battery state of a battery cluster, the control module comprises a switch assembly and a connecting end that is electrically connected to the switch assembly, and the switch assembly is configured to control the connection/disconnection of the connecting end; and the wiring assemblies are used for connecting the control modules to the battery cluster, the wiring assemblies are arranged corresponding to the control modules, each of the wiring assemblies comprises terminals, which are electrically connected to the connecting end, respectively. According to the control box, the energy storage apparatus and an electrical device provided in the embodiments of the present application, the control box can control a plurality of battery clusters at the same time, such that the volume of an applied energy storage apparatus is reduced, thereby improving the energy density of the energy storage apparatus.

Method of cleaning a battery plate lug

Resumen de: GB2705652A

Method of cleaning a battery plate lug (210,Fig.2) comprising one or more laser sources being applied to first and second sides, where first and second lasers may be applied to the respective sides. The cleaning method occurs between the steps of enveloping and stacking battery plates. The cleaning process may be applied as a spot or a line to remove paste and/or a native layer of oxidised lead. The laser light may be moved across the surfaces of the lug and may involve the lug being moved. A second battery plate lug may be cleaned using third and fourth lasers applied to first and second sides respectively. The laser source may comprise a continuous wave laser, a pulsed laser, a fibre laser, a solid-state laser or a fibre-solid-state hybrid. A method of assembling battery plate stacks and a system 100 for cleaning a battery plate lug is also included. Figure 1

BATTERY INSPECTION DEVICE AND METHOD

Resumen de: EP4831628A1

0001 A battery inspection device according to an embodiment of the present invention is for inspecting a battery including an electrode assembly, and may comprise: at least one processor; and a memory for storing one or more commands executed via the at least one processor. Here, the one or more commands may include commands for: acquiring a vertical cross-sectional image of the battery; defining, in the vertical cross-sectional image, a region of interest (ROI) including an end region of the electrode assembly; calculating a gray value for each height with respect to the ROI; and determining the position of an electrode end on the basis of a rate of change in the gray value.

LITHIUM SECONDARY BATTERY

Resumen de: EP4832137A1

A lithium secondary battery according to the present disclosure is a lithium secondary battery including a positive electrode; a negative electrode; a separator; and an electrolyte, wherein the electrolyte includes 1,3-propane sultone (PS) and/or lithium bis(oxalate)borate (LiBOB) as a main additive, and a full charge voltage exceeds 4.35V.

COMPOSITE SEPARATOR FOR LITHIUM SECONDARY BATTERY CONTAINING ORGANIC POLYMER ADHESIVE LAYER, MANUFACTURING METHOD THEREOF, AND LITHIUM SECONDARY BATTERY HAVING SAME

Resumen de: EP4832224A1

A composite separator for a lithium secondary battery according to an aspect of the present disclosure comprises a porous organic polymer substrate, a porous inorganic heat-resistant layer coated on at least one surface of the organic polymer substrate, the porous inorganic heat-resistant layer containing inorganic particles and an organic binder polymer to hold the inorganic particles together, and an organic polymer adhesive layer coated on an outer surface of the porous inorganic heat-resistant layer, the organic polymer adhesive layer containing an organic binder polymer, wherein the inorganic particles include a mixture of particles having different shapes including i) plate-shaped particles and ii) needle-shaped particles, the plate-shaped particles including aluminum oxide particles, aluminum hydroxide particles or a mixture thereof, the needle-shaped particles including aluminum oxide particles, aluminum hydroxide particles or a mixture thereof, wherein the organic binder polymer included in the organic polymer adhesive layer includes a gelatin resin.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4832233A1

A battery cell, a battery, and an electric device, which belong to the technical field of batteries. The battery cell comprises: a housing component, a terminal component, and an electrode assembly, wherein the terminal component comprises a conductive part; and the electrode assembly is accommodated in the housing component and comprises a tab part, the tab part comprises a plurality of stacked tab pieces, the plurality of stacked tab pieces are connected to form a gathered part, the gathered part and the conductive portion are stacked and connected to form a connection part, the gathered part comprises a compacted area, the connection part comprises a first portion formed on the gathered part, and at least most of the contour line of the first portion is located in the compacted area.

METAL FIBER

Resumen de: EP4624071A1

The present invention relates to a metal fiber having an anisotropic surface texture, comprising: a first end region on a first end of the metal fiber having a smooth surface; and a second end region on a second end of the metal fiber having a non-smooth surface.

BATTERY MODULE

Resumen de: EP4832193A1

0001 A battery module includes: a first pouch battery cell and a second pouch battery cell, each including electrode tabs (70a,70c); a first bus bar and a second bus bar (70), one of the first bus bar and the second bus bar being connected to an electrode tab of the first pouch battery cell and the other being connected to an electrode tab of the second pouch battery cell; and a bus bar holder (74), wherein the bus bar holder includes: a first holding portion (76) configured to hold the first bus bar; a second holding portion (78) configured to hold the second bus bar; and a low-rigidity portion (82A,82B) located between the first holding portion and the second holding portion and configured to have a rigidity that is lower than a rigidity of at least one of the first holding portion and the second holding portion.

BATTERY DISTRIBUTION BOX, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4832678A1

The present application relates to the field of batteries and provides a battery distribution box, a battery, and an electric device. The battery distribution box provided in the present application comprises a shell, an electrical assembly and a heat dissipation cover plate, wherein an accommodating cavity having an opening is formed in the shell; the electrical assembly is arranged in the accommodating cavity, and the electrical assembly comprises a plurality of electrical elements and conductive connectors connected to the electrical elements; the heat dissipation cover plate is connected to the shell to cover the opening, and the conductive connectors are at least partially in contact with the heat dissipation cover plate to achieve heat conduction. The conductive connectors being in contact with the heat dissipation cover plate enables a simplified manner of connection between the conductive connectors and the cover plate with heat dissipation function, reduced extension length of the conductive connectors, and improved space utilization rate of the battery distribution box.

SOLID ELECTROLYTE AND ALL-SOLID-STATE BATTERY COMPRISING SAME

Resumen de: EP4832067A1

The present disclosure relates to a positive electrode for all-solid-state batteries with improved electrochemical characteristics by applying a sulfide-based solid electrolyte having an argyrodite-type structure with Young's modulus of less than 20 GPa and reducing the porosity of the positive electrode to less than 20%.

BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: EP4832214A1

0001 A battery pack according to the present disclosure includes: a battery assembly including a plurality of battery cells; a pack case in which an accommodation space is defined to accommodate the battery assembly; at least one first vent hole provided on a first side of the battery assembly; a vent space provided on the first side of the first vent hole and formed in the pack case; and a backflow preventing member having at least one opening/closing portion disposed to correspond to the first vent hole. The opening/closing portion is opened to allow communication between the first vent hole and the vent space when an internal pressure of the battery assembly reaches or exceeds a predetermined reference value.

BATTERY MODULE AND BATTERY PACK INCLUDING SAME

Resumen de: EP4832177A1

0001 A battery module according to certain embodiments of the present disclosure includes: a battery cell stack in which a plurality of battery cells are stacked, a module frame that houses the battery cell stack, an inlet port through which a coolant flows into the module frame, an outlet port through which the coolant flows out of the module frame, and an expansion member which is disposed respectively within the inlet port and the outlet port and expands in its volume when a prescribed temperature is reached.

SECONDARY BATTERY AND PREPARATION METHOD THEREFOR, AND ELECTRIC DEVICE

Nº publicación: EP4832092A1 28/10/2026

Solicitante:

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

Resumen de: EP4832092A1

0001 The present application provides a secondary battery and a preparation method therefor, and an electric device. The secondary battery comprises a positive electrode sheet, the positive electrode sheet comprises a positive electrode active material and an additive, the positive electrode active material comprises a base material and a coating layer at least partially covering the base material, the coating layer comprises a lithium-supplementing material or a reducing material, the additive comprises a lithium-supplementing material or a reducing material, and the coating layer and the additive do not simultaneously comprise a lithium-supplementing material and do not simultaneously comprise a reducing material. The secondary battery has excellent cycle performance and long service life.