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1478
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Updated on
25/12/2025 [07:16:00]
Results 725 to 750 of 1478
Absstract of: EP4664562A1
Provided are a positive electrode plate and a preparation method therefor, a battery cell, a battery, and an electrical apparatus, belonging to the technical field of batteries. The positive electrode plate includes: a positive electrode current collector, a first film layer, a second film layer, and a third film layer, where the third film layer is located between the first film layer and the second film layer, the first film layer is located on a surface of at least one side of the positive electrode current collector and is closer to the positive electrode current collector than the second film layer; the first film layer includes a first active material, and the first active material includes a layered structure material; the second film layer includes a second active material, and the second active material includes at least one of an olivine structure material and a spinel structure material; and the third film layer is used for isolating the first active material from the second active material. The technical solutions in the embodiments of the present application are beneficial to enhancing the performance of the battery cell.
Absstract of: EP4664638A1
A container module is disclosed. The container module according to an embodiment of the present disclosure includes a base frame having a square or rectangular shape; a corner column extended in a top-bottom direction, and connected to a corner of the base frame; a bracket coupled to the corner column, and extended in a front-rear direction; and a battery pack installed on the bracket.
Absstract of: EP4663588A1
A transfer device according to an embodiment of the present disclosure includes a first disk having a disk shape and configured to be rotatable based on the central axis of the disk, a second disk provided above the first disk and having a disk shape, and a gasket interposed between the first disk and the second disk.
Absstract of: EP4664599A1
The present disclosure relates to a battery module that includes: a cell stack including a plurality of battery cells arranged to be stacked in one direction; a module case configured to accommodate the cell stack; a venting hole formed on the module case and configured to discharge gas generated from the battery cell to the outside of the module case; and a cartridge having at least a portion coupled to the module case and configured to release carbon dioxide stored therein toward the venting hole.
Absstract of: EP4664636A1
Disclosed are a battery (100) and a vehicle (1000). The battery (100) comprises: a battery box (1) and at least one battery cell (20). The battery box (1) comprises a box body (11) and a top cover (12), the top cover (12) is arranged on the top of the box body (11), and an accommodation cavity (15) is defined between the top cover (12) and the box body (11). All the battery cells (20) are arranged in the accommodation cavity (15), and the upper part of at least some of the battery cells (20) is fixedly connected to the top cover (12).
Absstract of: EP4664598A1
Provided is a secondary battery having improved structural stability. The electrode assembly includes a plurality of negative electrodes each including a negative electrode tab and a plurality of positive electrodes arranged alternately with the negative electrodes and each including a positive electrode tab, a first current collector electrically connected to the negative electrodes, and a first insulator disposed below the first current collector, wherein negative electrode tabs of at least some of the plurality of negative electrodes overlap in a first position to form a first negative electrode tab stack and negative electrode tabs of the others of the plurality of negative electrodes overlap in a second position, different from the first position, to form a second negative electrode tab stack, and the first insulator is disposed adjacent to the first negative electrode tab stack and the second negative electrode tab stack simultaneously.
Absstract of: EP4664061A2
A monitoring device according to one embodiment disclosed herein may include a communication circuit, a processor, and a memory configured to store instructions, wherein, when executed by the processor, the instructions allow the monitoring device to acquire an image of a jelly roll including a positive electrode, a separator, and a negative electrode through the communication circuit, detect starting points of the positive electrode and the negative electrode from the image, and calculate input amounts of the positive electrode and the negative electrode included in the jelly roll based on the starting points.
Absstract of: EP4664567A1
Provided is a metal foil for a current collector that can have increased adhesiveness to an electrode mixture layer while maintaining the discharge capacity of a battery. The metal foil for a current collector according to the present disclosure includes a base material and a plurality of composite bodies held on the surface of the base material. The plurality of composite bodies include Ni particles having an average particle size of 20 µm or less, a sintered body formed by sintering a plurality of the Ni particles, and a resin with a volume% of 14.0 to 40.0. On a surface of the metal foil for a current collector, the number of peaks whose height from the surface of the base material is larger than 10 µm is 20.0 to 50.0 /mm, the peaks being identified through line roughness analysis.
Absstract of: EP4664575A1
The present invention relates to an electrode assembly manufacturing plate, which includes a support plate, a sub-plate provided on one surface of the support plate, and a distance control unit provided on the support plate and configured to push a part of an opposing surface to a surface of the sub-plate, which is opposite to the support plate, from the support plate so that a distance from a part of the opposing surface to the support plate is different from a distance from the remaining portion to the support plate, an electrode assembly manufacturing apparatus including the same, and an electrode assembly manufacturing method.
Absstract of: EP4664625A1
Disclosed are a secondary battery pocket portion sealing apparatus for sealing a sealing portion of a second pocket portion for gas capture, the secondary battery pocket portion sealing apparatus including a first sealing unit including a first sealing tool disposed on one side of the sealing portion so as to press and heat the sealing portion such that the sealing portion is sealed, a friction pad portion connected to the first sealing tool, the friction pad portion including a first friction pad and a second friction pad disposed at both ends of one surface of the sealing portion, and a driving member configured to move the first sealing tool and the friction pad portion to one side or the other side, and a second sealing unit including a second sealing tool disposed on the other side of the sealing portion so as to press and heat the sealing portion such that the sealing portion is sealed, and a secondary battery pocket portion sealing method using the same.
Absstract of: EP4664721A1
In order to improve high voltage DC systems the invention proposes an energy storage circuit for an energy storage module (18) comprising:- a positive terminal (26) and a negative terminal (28);- an energy storage assembly (30) configured for storing electrical energy, the energy storage assembly (30) including at least one energy storage cell and at least one sensor (35);- a switching assembly (36) that is switchable into any of an operational state and a bypass state and optionally a cross-conduction state, wherein in the operational state the switching assembly (36) electrically connects the energy storage assembly (30) to the positive and negative terminals to supply them with electrical power, wherein in the cross-conduction state the switching assembly (36) short-circuits the energy storage assembly (30), wherein in the bypass state the switching assembly (36) allows a direct electrical connection between the positive terminal (26) and the negative terminal (28); and- a energy storage local control unit (24) that is configured for detecting a fault condition of the energy storage assembly (30) based on the at least one sensor (35), and upon detecting the fault condition, for causing, preferably initiating, the switching assembly (36) to progress from the operational state through the cross-conduction state into the bypass state.
Absstract of: EP4664578A1
The present disclosure relates to an electronic assembly including a first electrode including a first uncoated portion, a first flag portion formed by extending a part of the first uncoated portion, and a first extension portion connecting the first uncoated portion and the first flag portion, a second electrode, and a separator arranged between the first electrode and the second electrode, wherein the first electrode, the second electrode, and the separator are wound in a form of a roll around a virtual winding center, and wherein the first flag portion comprises at least one inner bent region bent in the winding center direction and at least one outer bent region bent in an opposite direction to the winding center direction.
Absstract of: EP4664498A1
In order to improve thermo-electrical properties of energy storage cells, the invention proposes a method for welding at least one cell component (26) to an electrode assembly (18) of an energy storage cell (10), preferably a supercapacitor, the method comprising arranging each cell component (26) and the electrode assembly (18) in contact with each other, wherein each cell component (26) has an exposed welding surface (30) that is accessible for welding by a welding implement; moving the welding implement relative to the welding surface (30) to weld each cell component (26) to the electrode assembly (18) by forming a plurality of weld seams on the welding surface (30), wherein at least two of the formed weld seams are chosen from a group of weld seam types consisting of a transport weld seam that has a main directional component along a radial direction of the electrode assembly (18); and a collector weld seam (39) that has a main directional component along a circumferential direction of the electrode assembly (18).
Absstract of: EP4664565A1
A main object of the present disclosure is to provide a mixture with which an electrode layer and an electrolyte layer with excellent ion conductivity are obtained. The present disclosure achieves the object by providing a mixture including a first solid electrolyte and a second solid electrolyte, wherein the first solid electrolyte and the second solid electrolyte contain Li, P, and S, and have an argyrodite type crystal structure; the first solid electrolyte includes an anion component including B; and the second solid electrolyte does not include an anion component including B.
Absstract of: EP4663789A1
The present disclosure provides an aluminum alloy plate for a case (610) of a secondary battery. The aluminum alloy plate includes 1.25 wt% to 1.5 wt% of manganese (Mn), and 0.6 wt% to 0.8 wt% of magnesium (Mg).
Absstract of: EP4664643A1
Disclosed in the present application are a battery cell, a battery and an electric device. The battery cell comprises: a case, the case comprising a first wall portion, a second wall portion and a third wall portion; a pressure relief mechanism, the pressure relief mechanism being arranged at the first wall portion; and an electrode assembly, which is accommodated in the case, wherein the electrode assembly comprises at least one negative electrode sheet, an active material layer is formed on at least one side of the negative electrode sheet, and in a second direction, the first wall portion is arranged facing an edge of the negative electrode sheet; in the second direction, the minimum distance between the pressure relief mechanism and an edge of the active material layer is D, and 3 mm≤D≤15 mm; on the basis of the total mass of the active material layer, the mass proportion of an active material is S, and 0.5%≤S≤25%; and in a first direction, the minimum distance between an edge of the pressure relief mechanism and an outer surface of the second wall portion or an outer surface of the third wall portion is d, and 3 mm≤d≤20 mm.
Absstract of: EP4664557A1
A cathode material, a cathode slurry and a lithium ion battery provided. The cathode material has a general chemical formula of where 0.80≤σ≤1.20, a+b+c+x+y+z=1, 0.6≤a≤1.0, 0.0≤b≤0.10, 0.0≤c≤0.3, 0
Absstract of: EP4664597A1
The present application discloses a battery cell, a battery, and an electric device. The battery cell comprises: a casing, the casing comprising a first wall portion; a pressure relief mechanism, the pressure relief mechanism being arranged on the first wall portion; and an electrode assembly, being accommodated in the casing, the electrode assembly comprising at least one negative electrode sheet, the first wall portion facing the edge of the negative electrode sheet, an active material layer being formed on at least one side of the negative electrode sheet, the active material layer comprising a first region and a second region which are arranged in a first direction, the second region being closer to the first wall portion than the first region, the first direction being parallel to the thickness direction of the first wall portion, and in a full-charge state, the thickness of the second region being a µm, and the thickness of the first region being b µm, wherein b-a≥5 µm.
Absstract of: EP4664619A2
The present application provides a battery and an electronic product. The battery includes a housing, a cover assembly and a cell body, where the cover assembly is disposed on the housing; the cover assembly includes a conductive part and a top cover, and the top cover is in insulated connection with the conductive part; the conductive part includes a flattening portion and a boss portion, and the boss portion is connected to the flattening portion; a center of the top cover is provided with a through hole, and the boss portion extends into the through hole; and the cell body is accommodated in the housing, the cell body is connected with a first tab, the first tab is connected with the conductive part. The present application provides a battery and an electronic product for at least improving the flatness and reliability of welding a tab on a conductive part.
Absstract of: EP4664621A2
A battery module includes a plurality of cells and a first fireproof layer. The cells are arranged in sequence. The first fireproof layer is arranged on the cells. The first fireproof layer is attached to top surfaces of the cells. A battery pack includes at least two battery modules stacked vertically. The fireproof performance of the battery module and the battery pack is improved, and the reliability and safety of the battery module and the battery pack are improved.
Absstract of: EP4664932A2
A system includes a hearing device comprising a rechargeable power source, power management circuitry, and a first charging interface comprising a first cathode contact and a first anode contact spaced apart from the first cathode contact. A charging module comprises a second charging interface configured to detachably couple with the first charging interface of the hearing device. The second charging interface comprises a second anode contact having a contact surface and a displaceable second cathode contact. An arrangement is configured to displace at least a portion of the second cathode contact above the contact surface to facilitate electrical contact between the first and second cathode contacts prior to electrical contact between the first and second anode contacts. Charging circuitry of the charging module is coupled to the second charging interface and configured to charge the rechargeable power source of the hearing device.
Absstract of: EP4664130A2
A battery management apparatus according to the present disclosure includes a voltage measurement circuit to measure a cell voltage of each of a plurality of battery cells; and a control unit to determine the cell voltage of each of the plurality of battery cells and a reference voltage of the plurality of battery cells at a preset time interval during a rest period. The control unit determines a first accumulated change of the cell voltage of each battery cell during the rest period. The control unit determines a second accumulated change of the reference voltage during the rest period. The control unit determines whether each battery cell is defective by comparing the first accumulated change of each battery cell with the second accumulated change.
Absstract of: EP4663307A1
Disclosed herein relates to a die coater, wherein in the second coater shim forming the second slit through which the insulating liquid is discharged, the length L1 of the first sidewall at a relatively distant position from the first slit is longer than the length L2 of the second sidewall at a relatively close position from the first slit.
Absstract of: EP4664535A1
Disclosed herein is a roll press device for performing hot rolling on an electrode coated with electrode active material, wherein, in one example, a pre-heater is disposed upstream of a rolling unit that performs rolling on an electrode transferred in a roll-to-roll manner, and the pre-heater irradiates an infrared laser along a width direction of the electrode surface to heat it as radiant heat.
Nº publicación: EP4664559A1 17/12/2025
Applicant:
BTR JIANGSU NEW MATERIAL TECH CO LTD [CN]
BTR (Jiangsu) New Material Technology Co., Ltd
Absstract of: EP4664559A1
A cathode material and a preparation method thereof, and a lithium ion battery are provided. A volume particle size distribution width of the cathode material is Span, Span=D90−D10D50, and a dissociation degree of the cathode material is β, β=D50Dn50, wherein the cathode material meets the following relationships: 1.1≤β<1.65, and 0.9≤Span≤1.53.The dissociation degree and volume particle size distribution width of the cathode material provided in the present disclosure meet the above conditions, such that it may ensure that the cathode material has a certain electrode plate compaction density to increase an energy density while ensuring the integrity of a crystal structure of the cathode material during charging and discharging of a lithium ion battery, and a gas production value is reduced, thereby causing the cathode material to have excellent cycling performance and safety performance.
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