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829
resultados
Última actualización
30/12/2025 [07:07:00]
Resultados 25 a 50 de 829
Resumen de: EP4668365A1
A secondary battery includes an electrode assembly, and the electrode assembly includes a positive electrode plate. The positive electrode plate includes a positive electrode active material layer. The positive electrode active material layer includes a positive electrode active material and a positive electrode additive. The positive electrode active material includes a transition metal element, the transition metal element including one or more selected from the group consisting of Co, Ni, Mn, Fe, and V. The positive electrode additive is a nitrile-containing organic compound, a carbon-to-nitrogen atom number ratio of the positive electrode additive is m, where 1 ≤ m ≤ 6; a weight-average molecular weight of the positive electrode additive is Mw, where 300 ≤ Mw ≤ 800000; and based on a mass of the positive electrode active material layer, a mass percentage of the positive electrode additive is x%, where 0.01 ≤ x ≤ 0.50.
Resumen de: EP4668533A1
An access method of a parallel branch in a battery system, a battery management system, a device, and a storage medium are provided. The method includes: detecting a to-be-accessed branch of a battery (S110), when the detection succeeds, acquiring a voltage difference between an accessed branch of a battery system and the to-be-accessed branch, and when the voltage difference satisfies a first preset range, accessing the to-be-accessed branch to the battery system (S120).
Resumen de: EP4668467A1
A battery cell, a battery, and an electric apparatus are provided. The battery cell includes a housing, an electrode assembly, and a conductive member. The housing is provided with an electrode lead-out member. The electrode assembly is accommodated in the housing. The electrode assembly is a cylindrical wound structure. The electrode assembly includes a first electrode plate, where the first electrode plate includes a current collector and an active material layer, the current collector includes a coated region coated with the active material layer and a tab not coated with the active material layer, and the coated region and the tab are arranged along a first direction. The conductive member includes a conductive body and a bent portion, where at least a portion of the conductive body is connected to the tab to form a first connection region, the bent portion is configured to be electrically connected to the electrode lead-out member, the bent portion extends from an end of the conductive body away from the active material layer and is continuously bent multiple times, and in the first direction, the bent portion entirely extends beyond an end of the tab away from the coated region.
Resumen de: EP4668381A1
An electrode assembly according to an embodiment of the present disclosure may include a plurality of electrodes stacked on top of each other; a plurality of separators interposed between the plurality of electrodes; and a plurality of electrode tabs connected to the plurality of electrodes and protruding further outward than the plurality of separators. Each separator may include an edge portion that protrudes further than the electrode in the extension direction of the electrode tab and partially overlaps with the electrode tab in the stacking direction of the plurality of electrodes. The edge portions of at least some of the plurality of separators may be sealed to each other so that the plurality of electrode tabs are gathered together.
Resumen de: EP4668449A1
Disclosed is a battery pack. The battery pack includes a case having an open upper surface and providing an inner space; a plurality of battery cells accommodated in the inner space and extending in a left and right direction; a partition wall configured to partition the inner space; a spacer provided at an upper end of the partition wall; and a pack cover configured to cover the upper surface of the case and coupled to the spacer.
Resumen de: EP4667862A1
A heat exchange plate includes a first side plate (1) and a second side plate (2) arranged opposite to the first side plate. The first side plate (1) is of an aluminum structure or an aluminum alloy structure. A groove (3) for forming a heat exchange channel (7) is formed in one side of the second side plate (2) facing the first side plate (1). The second side plate (2) includes a main body layer (21) and a protective layer (22) located between the main body layer (21) and the first side plate (1). A thickness of the second side plate (2) located in an area outside the groove (3) is g mm, a depth of the groove (3) is d mm, and a thickness of the protective layer (22) located in the area outside the groove (3) is x mm, x×0.01×(1-(4.55d-5.36)) > λ×g, and λ is equal to 10%.
Resumen de: EP4668426A1
A cover plate assembly includes a cover plate body (1), a pole (2) and a fixing structure (3), wherein the pole (2) is provided on the cover plate body (1); and the fixing structure (3) is fixed on the cover plate body (1), the fixing structure (3) includes a plurality of hems (31), the plurality of hems (31) are provided at intervals around one same pole (2), and the hems (31) are used for fixing the pole (2), wherein each of the hems (31) includes an outer edge (313) remote from the pole (2), a maximum distance between the outer edges (313) of different hems (31) is D, and a maximum width of the cover plate body (1) is L, wherein D/L is 1-2.
Resumen de: US2025087748A1
A composition for an electrolyte, in a precured state, can include polymeric precursor(s), salt(s), optional plasticizer(s), optional additive(s), optional inhibitor(s), and optional initiator(s). The salt(s), additive(s), inhibitor(s), and/or initiator(s) can additionally or alternatively act as plasticizers. The composition can be used to form a gel electrolyte (e.g., in the activated state) such as within a charge storage device (e.g., battery).
Resumen de: CN120642116A
The invention relates to an assembly (1) for a battery holder, comprising a first structural element (10), a second structural element (20), internal engagement means (30), external engagement means (40) and an adhesive (50); the inner engagement means (30) and the outer engagement means (40) fix the first structural element (10) to the second structural element (20) by means of an adhesive (50) at the level of the first end (11) of the first structural element (10) and at the level of the second end (21) of the second structural element (20).
Resumen de: CN120660232A
The invention relates to an assembly (1) for a battery holder, comprising: a first structural element (10); a second profile (30) exhibiting a hollow cross-section internally delimiting an adhesive surface (s30), and a mating cavity (31); an engagement means (50) inserted into the mating cavity (31) and comprising at least one fixing hole (51), the engagement means (50) comprising an engagement surface (s50) facing the adhesive surface (s30) on the outside; an adhesive (20) interposed between the bonding surface (s50) and the adhesive surface (s30), the adhesive (20) being configured to allow adhesion between the bonding surface (s50) and the adhesive surface (s30); the fixing component (40) comprises a fixing rod (41) which is screwed into the fixing hole (51); the fixing member (40) and the engagement mechanism (50) are thereby configured to fix the first structural element (10) with the second profile (30).
Resumen de: CN120752150A
The invention relates to a battery (10) having a housing (2) and at least one module consisting of individual battery cells (4) which are inserted as a composite (11) into the housing (2), having at least one layer of thermally conductive glue (8) and having a structural package (7). The individual battery cell according to the invention is characterized in that the composite (11) of the individual battery cells (4) has an elastic, flexible sealing strip (12) in the stacking direction (S) between the stacked individual battery cells (4), via which sealing strip the sides of adjacent individual battery cells (4) are each kept at a distance from one another.
Resumen de: EP4668385A1
The present invention relates to a pouch-type secondary battery manufacturing device, and more specifically, relates to an adsorption device holding a pouch in an electrolyte injection process, and a pouch-type secondary battery manufacturing device comprising the same. According to one example of the present invention, a pouch-type secondary battery manufacturing device may be provided, which comprises: a base; a pad assembly provided at the front of the base and having an adsorption pad adsorbing a pouch in a horizontal direction to form an electrolyte injection path into the inside of the pouch; and a pad cover covering the upper part and front of the pad assembly and having a nozzle spraying air toward the adsorption pad.
Resumen de: EP4668384A1
The present invention relates to a pouch-type battery manufacturing device and a gripper used therein, and more specifically, relates to a battery manufacturing device and a gripper, which can perform an insertion process for a pouch and an electrode assembly more stably and efficiently while minimizing damage to the electrode assembly.According to one example of the present invention, a pouch-type battery manufacturing method may be provided, which comprises: a pouch pickup step of picking up a pouch, in which an accommodation portion for inserting an electrode assembly is formed, using a gripper; a pouch cover step of moving the pouch downward to the upper portion of the electrode assembly using the gripper to insert the upper portion of the electrode assembly into the accommodation portion; an assembly pickup step of picking up the pouch and the electrode assembly together using the gripper; and a seating step of seating the pouch and the electrode assembly in an assembly station in a state where the electrode assembly is inserted into the accommodation portion of the pouch from the upper portion of the pouch by reversely moving the gripper up and down.
Resumen de: EP4668380A1
The present disclosure provides an electrode assembly comprising:a laminate body including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, and one or more pairs of tapes for fixing the exterior of the laminate body,wherein the pair of tapes includes non-overlapping portions that do not overlap with each other, and overlapping portions that overlap with each other, andwherein a width of the non-overlapping portions is larger than a width of the overlapping portions, and a secondary battery comprising the same.
Resumen de: EP4668455A1
A battery separator and a preparation method therefor, and a secondary battery and an electric device, which relate to the field of batteries. The battery separator comprises a base film 10 and a coating 20, wherein the coating 20 is arranged on a surface of the base film 10 on the side that faces a cathode of a battery, and the materials of the coating 20 comprise a conductive material and an insulating material. When the battery separator which is obtained by arranging the coating 20 on the surface of the base film 10 on the side that faces the cathode of the battery is applied to a lithium battery, and when lithium dendrites grow to completely penetrate the side of the base film 10 which is not provided with the coating 20, the lithium dendrites are intercepted by the arranged coating 20, and do not come into direct contact with the cathode; moreover, a low-current micro-short circuit is formed by the coating 20, thereby extending the time from a short circuit to a serious accident occurring.
Resumen de: WO2024173731A1
An example embodiment includes a battery having a plurality of battery modules, each battery module comprising a plurality of battery cells; a pressure control system configured to provide fluid having a target fluid pressure that achieves a target pressure to be applied to respective battery cells of a battery module; and a thermal control system configured to supply coolant to the battery module to achieve a target temperature.
Resumen de: WO2024173471A1
An iron anode employs an electrolyte for generating an anode reaction to convert between Iron II and Iron III ions, denoted by Fe(OH)2 and FeOOH, rather than tending towards formation of highly stable Fe3O4, which can tend to cause "dead" regions in the battery. A suitable battery chemistry includes iron-air and other iron metal batteries operable with an aqueous electrolyte and employing oxygen and water cathodes. The iron anode battery employs inexpensive available iron, rather than more expensive and/or volatile materials used in Li-ion and lead-acid batteries. An aqueous electrolyte formed from sodium hydroxide and silicates, optionally with potassium or chloride salts, forms an anode reaction with nanostructured iron oxide particles in a safe and stable battery chemistry which is readily scalable for grid storage.
Resumen de: WO2024173390A2
A lithium-ion battery cell includes an anode having a plurality of spaced apart lithium storage layer segments in electrical contact with the anode current collector, wherein the lithium storage layer segments include at least 40 atomic % silicon, tin, germanium; or a combination thereof. The cell includes a cathode having a cathode active material layer in electrical contact with a cathode current collector. The cell also includes a lithium-ion-containing solid-state electrolyte (SSE) that is i) interposed between the plurality of spaced apart lithium storage layer segments and the cathode active material, and ii) provided at least partially within gaps separating the spaced apart lithium storage layer segments. Methods of making the lithium-ion battery cell are also described.
Resumen de: WO2024173390A2
A lithium-ion battery cell includes an anode having a plurality of spaced apart lithium storage layer segments in electrical contact with the anode current collector, wherein the lithium storage layer segments include at least 40 atomic % silicon, tin, germanium; or a combination thereof. The cell includes a cathode having a cathode active material layer in electrical contact with a cathode current collector. The cell also includes a lithium-ion-containing solid-state electrolyte (SSE) that is i) interposed between the plurality of spaced apart lithium storage layer segments and the cathode active material, and ii) provided at least partially within gaps separating the spaced apart lithium storage layer segments. Methods of making the lithium-ion battery cell are also described.
Resumen de: EP4666885A1
An aerosol generating device includes a heater configured to heat an aerosol generating material, a battery that is rechargeable and configured to supply power to the heater, and a processor configured to control charge of the battery from an external power supply and configured to control an output of the battery to control a temperature of the heater, wherein the processor is further configured to monitor charge-discharge cycles of the battery and control a full charge voltage when charging the battery and the output of the battery, based on the charge-discharge cycles.
Resumen de: EP4668446A1
Embodiments of this application provide a cell, a battery, and an electric device. The cell includes a can and an electrode assembly. The can includes a first wall portion, where N vent mechanisms are arranged along a first direction on the first wall portion. The electrode assembly is accommodated in the can. The electrode assembly includes a body portion and a tab. The body portion includes a plurality of sub-regions. Along the first direction, the tab is arranged at at least one end of the body portion. The plurality of sub-regions are consecutively arranged. A length of the body portion is L, and a length of the sub-region is L1, L=L1×N, L≥400 mm, and N≥2. A projection of each vent mechanism along a thickness direction of the first wall portion is correspondingly located in one of the sub-regions. Each vent mechanism can discharge a discharge medium generated by thermal runaway in a corresponding sub-region, and the discharge medium generated by thermal runaway in each sub-region can be quickly discharged through a corresponding vent mechanism, which can effectively improve timeliness of venting of a cell, thereby improving reliability of the cell.
Resumen de: EP4668399A1
Methods for preparing a solid electrolyte membrane are described. More particularly, a small amount of binder may be fiberized through a dry calendering process to prepare a solid electrolyte membrane. Since the fiberized binder is included in an entangled state within the solid electrolyte membrane, it shows excellent characteristics in both ionic conductivity and strength.
Resumen de: EP4668344A1
This application provides a positive electrode active material, a preparation method thereof, and a positive electrode plate, a battery, and an electric apparatus including the same. The positive electrode active material includes a layered transition metal oxide represented by Formula (I), with parameters as defined herein. The positive electrode active material includes a K element, and an amount of the K element decreases from a particle surface to a particle interior of the positive electrode active material. NaxKyMaAbBcOmQn Formula (I)
Resumen de: EP4668460A1
Battery module (10) and battery pack are provided. Battery module (10) includes: body and second conductive sheet (2). Body has first conductive sheet (13) and electrode base. Second conductive sheet (2) has one end connected to first conductive sheet (13) and fixed to electrode base and other end configured to be connected to adjacent battery module (10). Second conductive sheet (2) is provided with first groove (21), first conductive sheet (13) extends into first groove (21), and conductive block (3) is further provided between first groove (21) and first conductive sheet (13). First conductive sheet (13) extends into first groove (21), which increases contact area between first and second conductive sheets, reduces resistance among battery modules, reduces amount of heat from second conductive sheet (2), and improves efficiency of transfer of current among battery modules (10). Conductive block (3) is provided between first groove (21) and first conductive sheet (13), which increases cross-sectional area at junction between second and first conductive sheets, and further reduces resistance among battery modules.
Nº publicación: EP4668393A1 24/12/2025
Solicitante:
ASAHI CHEMICAL IND [JP]
Asahi Kasei Kabushiki Kaisha
Resumen de: EP4668393A1
The present disclosure provides a nonaqueous lithium power storage element in which the positive electrode active substance layer contains lithium iron phosphate and a carbon material containing activated carbon as the positive electrode active substance. When the content of carbon material in the positive electrode active substance layer is X<sub>1</sub> (mass%) and the lithium iron phosphate content is X<sub>2</sub> (mass%), the lithium iron phosphate mass ratio (X<sub>2</sub>/(X<sub>1</sub>+X<sub>2</sub>)) is 0.40 to 0.85. The total pore volume of the positive electrode active substance layer is 0.29 cc/g to 0.70 cc/g, the void diameter D25 of the positive electrode active substance layer is 0.34 µm to 0.64 µm, the void diameter D75 of the positive electrode active substance layer is 0.10 µm to 0.20 µm, and the difference between the void diameter D25 and the void diameter D75 (D25-D75) is 0.20 µm to 0.45 µm.
BOPI
Sede Electrónica
