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METHOD AND SYSTEM FOR BATTERY MANAGEMENT

Resumen de: EP4624961A1

The present disclosure relates to a battery management method and relates to providing a battery management method with improved safety and user convenience. To this end, the battery management method of the present disclosure may include monitoring a lower-level battery and receiving monitoring data, estimating a damage possibility of an upper-level battery including the lower-level battery based on the received monitoring data, and changing a charge/discharge range of the upper-level battery from a first charge/discharge range to a second charge/discharge range based on the estimated damage possibility.

APPARATUS AND METHOD FOR MANUFACTURING ELECTRODE AND SECONDARY BATTERY

Resumen de: EP4625509A1

Disclosed are an apparatus and method for manufacturing an electrode and a secondary battery including the electrode. The electrode manufacturing apparatus includes a press roll having a surface roughness Ra of 0.25 µm or more, with the press roll being configured to roll an electrode sheet.

END CAP ASSEMBLY, BATTERY APPARATUS, AND POWER CONSUMPTION DEVICE

Resumen de: EP4625634A1

An end cap assembly, a battery apparatus, and a power consumption device are provided. The end cap assembly includes a cover plate, an adhesive member, and an insulation member. The cover plate is provided with a first mounting hole. The adhesive member is bonded to the cover plate. The adhesive member is provided with a second mounting hole. The second mounting hole corresponds to the first mounting hole. The insulation member is disposed on a side of the cover plate facing away from the adhesive member. The insulation member is provided with a third mounting hole. The third mounting hole corresponds to the first mounting hole. A thickness of the adhesive member is H1 and a thickness of the insulation member is H2, satisfying the following: H1<H2. Through the foregoing arrangement, connection reliability of the end cap assembly is improved, and a risk of falling off during manufacturing and use is reduced.

SURFACE-TREATED COPPER FOIL FOR LITHIUM ION SECONDARY BATTERY, AND CURRENT COLLECTOR AND LITHIUM ION SECONDARY BATTERY

Resumen de: EP4624635A2

Provided is a surface-treated copper foil for a lithium ion secondary battery, including a copper layer having a first side and an opposite second side and nickel-containing treatment layers disposed on the first side and the second side of the copper layer respectively, wherein a nickel coating amount on each side of the copper layer is ≥3.0 10<4> µg/dm<2>, and each treatment layer provides a treated surface with lightness value (L*) of color space of 30 to 60 and reduced dale height (Svk) of 0.10 to 0.65 µm. Provided also are a current collector for a lithium ion secondary battery and a lithium ion secondary battery.

TERMINAL-POST ASSEMBLY, ENERGY-STORAGE APPARATUS, AND ELECTRICITY-CONSUMPTION DEVICE

Resumen de: EP4625621A1

A terminal-post assembly, an energy-storage apparatus, and an electricity-consumption device are disclosed in the present disclosure. The terminal-post assembly includes a first terminal-post and a first flange connected to one end of the first terminal-post. The first terminal-post includes a first member and a second member stacked with and connected to the first member, and the second member is connected to the first flange. A material of the first member is different from a material of the second member, and a connection interface between the first member and the second member is a curved surface. The first terminal-post is configured to connect to an electrode assembly in an energy-storage apparatus, and the first flange is configured to connect to a first busbar.

LITHIUM ION BATTERY AND ELECTRIC DEVICE

Resumen de: EP4625575A1

The present disclosure discloses a lithium ion battery and an electric device. The lithium ion battery includes a positive electrode; a negative electrode, where the negative electrode includes a negative electrode current collector and at least a negative electrode active material layer, the negative electrode active material layer is coated on one or two sides of the negative electrode current collector, and the total thickness of the negative electrode active material layer on a single side of the negative electrode current collector is d µm; and an electrolyte solution, where the electrolyte solution has an ionic conductivity of C mS/cm, and the electrolyte solution has a viscosity of δ mPa·s, where C and δ meet the following relation formula: 3≤d/(C*δ)≤6. In the present disclosure, by the electrolyte solution matching with different ionic conductivities and viscosities, the infiltration for the electrode sheet by the electrolyte solution is effectively improved, and the cycle performance over a wide temperature range is improved.

BATTERY MODULE

Resumen de: EP4625610A1

A battery module including banks connected in parallel or in series to each other, each of the banks including battery cells electrically connected in parallel to each other, a sensing tab configured to measure a voltage of each of the battery cells in each of the banks, and a high-voltage bus bar configured to make an electrical connection to another battery module. The high-voltage bus bar includes an insulating band including a synthetic resin that is an electrical nonconductor configured to electrically insulate the high-voltage bus bar from the sensing tab.

PROCESS FOR PREPARING SILICON-CONTAINING COMPOSITE PARTICLES

Resumen de: EP4625573A1

In a first aspect, the invention provides a process for preparing silicon-containing composite particles, the process comprising the steps of:(a) providing a plurality of porous particles comprising micropores and/or mesopores, wherein:(i) the D₅₀ particle diameter of the porous particles is in the range from 0.5 to 200 µm;(ii) the total pore volume of micropores and mesopores as measured by gas adsorption is in the range from 0.4 to 2.2 cm³/g;(iii) the PD₅₀ pore diameter as measured by gas adsorption is no more than 30 nm;(b) combining a charge of the porous particles with a charge of a silicon-containing precursor in a batch pressure reactor, wherein the charge of the porous particles has a volume of at least 20 cm³ per litre of reactor volume (cm³/L_RV), preferably at least 200 cm³ per litre of reactor volume (cm³/L_RV), and wherein the charge of the silicon-containing precursor comprises at least 2 g of silicon per litre of reactor volume (g/L_RV); and(c) heating the reactor to a temperature effective to cause deposition of silicon in the pores of the porous particles, thereby providing the silicon-containing composite particles.

BUS BAR ASSEMBLY AND BATTERY MODULE COMPRISING SAME

Resumen de: EP4625676A1

The present invention relates to a busbar assembly, which is easily deformable in shape, connected to a secondary battery including various types of electrode leads so as to be applied to various types of battery modules, and is fixed without separate additional member to improve efficiency of a manufacturing process, and a battery module including the same.A busbar assembly according to the present invention may include a pair of busbars crossing each other, a shaft disposed at a point at which the pair of busbars cross each other to hingedly connect the pair of busbars, and an elastic member connected between the pair of busbars.

CARRIER FOR CLEANING CYLINDRICAL BATTERY CELL, CYLINDRICAL BATTERY CELL PRODUCED USING SAME, AND BATTERY PACK AND VEHICLE WHICH COMPRISE CYLINDRICAL BATTERY CELL

Resumen de: EP4624364A1

Disclosed are a cylindrical battery cell cleaning carrier, a cylindrical battery cell produced using the same, and a battery pack and a vehicle including the cylindrical battery cell. A cylindrical battery cell cleaning carrier according to an embodiment of the present disclosure, which is a carrier where the cylindrical battery cell is seated during the transfer process to a cleaning member for cleaning the cylindrical battery cell, includes a body portion in which the cylindrical battery cell is seated; a first support portion protruding from the body portion and supporting the side surface of the cylindrical battery cell; and a second support portion protruding from the body portion and supporting the bottom surface of the cylindrical battery cell.

HEAT EXCHANGE MODULE

Resumen de: EP4624859A1

A heat exchange module includes a base member having a flattened tubular shape, and a heat exchanger branched from the base member. The base member includes a flow passage that connects a first end of the base member and a second end opposite to the first end, and support posts arranged in the flow passage. The flow passage extends in a flow direction, and a direction orthogonal to the flow direction is a longitudinal direction. The support posts include a first support post and a second support post. The first support post and the second support post are separated from each other in the longitudinal direction. The first support post is separated from the second end. The second support post is separated from the first end.

SECONDARY BATTERY

Resumen de: EP4625626A1

A secondary battery is provided that is has reduced production cost. The secondary battery includes an electrode assembly, including a first electrode plate, a second electrode plate, and a separator. A first case surrounds a first surface of the electrode assembly, and a second case surrounds a second surface of the electrode assembly that is opposite to the first surface. An insulating gasket is positioned between the first case and the second case and coupled to at least one of the first case or the second case. The first case and the second case are coupled to each other with an interference fit with the insulating gasket interposed between the first case and the second case.

BOTTOM GUARD PLATE AND BATTERY BOX

Resumen de: EP4624151A1

A bottom guard plate and battery box are provided in the present application. The bottom guard plate includes an upper skin; a lower skin spaced from the upper skin; an interlayer sandwiched between the upper skin and the lower skin. A thickness of the upper skin is greater than a thickness of the lower skin.

ELECTROLYTE, SECONDARY BATTERY, AND ELECTRICAL APPARATUS

Resumen de: EP4625590A1

The present application belongs to the technical field of batteries, and in particular, relates to an electrolyte solution, a secondary battery, and an electric device. The electrolyte solution provided in the present application contains sodium salt and lithium salt. A deposition overpotential of lithium metal in the electrolyte solution is higher than a deposition overpotential of sodium metal. The electrolyte solution has film-forming selectivity, which is beneficial to improving the cycling performance of the secondary battery. The secondary battery provided in the present application includes the electrolyte solution and a positive electrode sheet. An active material in the positive electrode sheet includes a sodium-ion positive electrode active material and a lithium-ion positive electrode active material, and a charging plateau voltage of the sodium-ion positive electrode active material in the battery is lower than a charging plateau voltage of the lithium-ion positive electrode active material in the battery. The electrolyte solution in the secondary battery is adapted to the positive electrode sheet, which further improves the storage performance of the secondary battery.

NEGATIVE ELECTRODE MATERIAL AND BATTERY

Resumen de: EP4625539A1

An anode material and a battery provided. The anode material includes a carbon matrix and a silicon material. The anode material, tested by Raman spectroscopy, has a first characteristic peak at 520±10 cm<-1> with a peak intensity of IA; a second characteristic peak at 960±10 cm<-1> with a peak intensity of IB; and a third characteristic peak at 480±10 cm<-1> with a peak intensity of Ic, where IA, IB and Ic have a relationship of 0.3≤IA/(IB+IC)≤0.6. The anode material provided has high initial Coulombic efficiency, high reversible capacity, and high expansion resistance.

PRESSURE RELIEF STRUCTURE FOR DOUBLE-LAYER BATTERY AND BATTERY PACK

Resumen de: EP4625652A1

Disclosed is a pressure relief structure for a double-layer battery and a battery pack, including an upper cell module (1) having a plurality of upper cell pressure relief openings (11), a lower cell module (2) having a plurality of lower cell pressure relief openings (21), a pressure relief layer (3) clamped between the upper cell module (1) and the lower cell module (2), in which a pressure relief chamber (33), in communication with the plurality of upper cell pressure relief openings (11) and the plurality of lower cell pressure relief openings (21), is formed within the pressure relief layer (3), and the plurality of upper cell pressure relief openings (11) and the plurality of lower cell pressure relief openings (21) are staggered in position.

ANODE FOR SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Resumen de: EP4625548A1

According to an embodiment, an anode for a secondary battery includes: an anode current collector; and an anode mixture layer on at least one surface of the anode current collector, wherein the anode mixture layer includes an anode active material, a binder, and a thermal crosslinking additive, and a weight of the binder included in the anode mixture layer is greater than a weight of the thermal crosslinking additive included in the anode mixture layer.According to an embodiment of the disclosed technology, energy density of the anode for a secondary battery may be improved.

BATTERY PACK AND MANUFACTURING METHOD

Resumen de: EP4625647A1

Battery pack and manufacturing method are provided. Battery pack includes cells contact system (CCS) assembly and cell assembly. CCS assembly includes injection molded member, vacuum-molded member, electrical connection plate, wiring harness. Injection molded member is connected to vacuum-molded member. Part of electrical connection plate is connected to injection molded member. Electrical connection plate is connected to vacuum-molded member. Wiring harness is connected to injection molded member, and further connected to electrical connection plate. Cell assembly includes battery cells electrically connected to electrical connection plate. Structural stiffness of injection molded member is greater than vacuum-molded member. Connection between injection molded member and vacuum-molded member reduces possibility of warping and deformation. Electrical connection plate mounted on vacuum-molded member is less prone to bending and deformation, and electrical connection plate is less prone to virtual electrical connection with cell. Electrical connection between electrical connector and cell has higher degree of operational reliability.

WELDING MACHINE

Resumen de: EP4624084A1

Disclosure is a welding machine. A welding machine for welding a plurality of metal materials according to an embodiment of the present disclosure includes an anvil on which the plurality of metal materials are placed, a horn located over the anvil and including a plurality of protrusions protruding toward the anvil, and a processor configured to vibrate the horn to form a hole passing through the plurality of metal materials.

BATTERY AND ELECTRIC DEVICE HAVING SAME

Resumen de: EP4625645A1

A battery (200) and an electric apparatus (1000) having the same are provided, where the battery (200) includes at least two first battery cells (10), each first battery cell (10) is provided with multiple sidewalls (11), the multiple sidewalls (11) include a first sidewall (111), the first sidewall (111) is the sidewall with the largest area of the first battery cell, the first sidewalls (111) of at least two first battery cells (10) are arranged opposite each other in a first direction and arranged offset from each other in a second direction, the first direction and the second direction are perpendicular to each other, and the first direction are perpendicular to the first sidewall (111).

COATING DEVICE

Resumen de: EP4624056A1

Provided is a coating device having excellent closing suppression property of a pressure reduction slit and excellent thickening suppression property of an end part in a width direction during film formation.The coating device includes a slot die which has a jetting slit for jetting a coating liquid to a substrate to be transported, and a pressure reduction slit, in which the pressure reduction slit is positioned at an upstream side of the jetting slit from the same position of the slot die in a substrate transport direction, and at an outside in a width direction of the jetting slit.

LAMINATION MACHINE AND LAMINATION METHOD

Resumen de: EP4624156A1

The invention provides a lamination machine (1, 1', 1") and a lamination method thereof. The lamination machine (1, 1', 1") of the invention includes two length adjustment mechanisms (10), a lamination support platform (12) and a pressing mechanism (14). Each of the two length adjustment mechanisms (10) includes a plurality of direction guiding rollers (100). The lamination support platform (12) includes a plurality of pressing members (120), a plurality of feed-in rollers (122) and a plurality of feed-out rollers (124). The pressing members (120) are stacked in a single axial direction (Z). The feed-in rollers (122), the feed-out rollers (124) and the direction guiding rollers (100) drag a laminated film (3) to pass through the pressing members (120) in sequence. The pressing mechanism (14) provides a pressing force to the pressing members (120) to synchronously press the laminated film (3) located on the pressing members (120).

BATTERY, METHOD FOR MANUFACTURING THE BATTERY, BATTERY PACK, AND ELECTRIC DEVICE

Resumen de: EP4625581A1

The present application provides a battery, a method for manufacturing the battery, and an electric device. The battery includes a positive electrode sheet, a negative electrode sheet, and at least one laminated structure disposed on either the surface of the positive electrode sheet facing the negative electrode sheet or the surface of the negative electrode sheet facing the positive electrode sheet. The laminated structure includes an ion transport layer and an electron insulation layer stacked together. The battery does not include a separator.

DRY ELECTRODE AND DRY ELECTRODE MANUFACTURING METHOD

Resumen de: EP4625508A2

A dry electrode includes a current collector including a surface having protrusions and depressions and a free-standing film including an active material, a conductive material, and a fiberized binder. The free-standing film is laminated directly onto the surface of the current collector having protrusions and depressions.

BATTERY PACK

Nº publicación: EP4625616A1 01/10/2025

Solicitante:

EVE ENERGY CO LTD [CN]
Eve Energy Co., Ltd

Resumen de: EP4625616A1

A battery pack is disclosed according to the present disclosure. The battery pack includes: a housing (1), a cover (2), a cell set (3) and a bus bar (4). The housing (1) includes a receiving cavity (11) with an opening on a side of the housing (1). The cover (2) is provided over the side of the housing (1) with the opening to close the receiving cavity (11). The cell set (3) is provided in the receiving cavity (11), and electrodes of the cell set (3) face the cover. The bus bar (4) is provided between the cell set and the cover (2), and a pressure relief space (6) is reserved between the bus bar (4) and the cover (2). The receiving cavity (11) is filled with insulating cooling oil, and the electrodes of the cell set (3) and the bus bar (4) are submerged in the insulating cooling oil.