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455
results.
Updated on
15/11/2026 [07:03:00]
Results 375 to 400 of 455
Absstract of: EP4838621A1
0001 An electric battery assembly is provided comprising: a battery cell having a positive terminal and a negative terminal; an electronic unit comprising a measurement device and a wireless transmitter; a support structure configured for attachment to the battery cell, and arranged to house the electronic unit, the support structure comprising at least one conducting element arranged to electrically couple the electronic unit to the positive and negative terminals, to thereby provide electrical power for the wireless transmitter and the measurement device; and wherein the measurement device is configured to measure a property of the battery cell, and the wireless transmitter is configured to wirelessly transmit the measured property.
Absstract of: EP4838604A1
0001 A high-nickel positive electrode material, a secondary battery, and an electric device. The positive electrode material satisfies: 20 ≤ A×B ≤ 50; where A is a mixed occupancy ratio of lithium atoms to nickel atoms in the positive electrode material, and B is an average number of primary particles per square micron in a cross-section of secondary particles with a particle diameter of 5-15 µm in the positive electrode material. In a product to which the positive electrode material is applied, primary particles in secondary particles are protected from the risk of crushing under compression caused by an excessive close packing thereof, and a sufficient transport space for lithium ion de/intercalation can also be provided; in addition, the problem of lithium precipitation caused by mixing of lithium atoms and nickel atoms is avoided during charging and discharging. Thus, the product exhibits desirable charging and discharging activity and cycling stability.
Absstract of: EP4838576A2
0001 The present invention relates to a positive electrode active material including a nickel-based lithium composite metal oxide having a Ni content of 80 atm% or greater among transition metals except lithium, and in the form of a single particle or pseudo-single particle, and a coating layer positioned on the surface of the nickel-based lithium composite metal oxide, and containing cobalt, wherein the positive electrode active material satisfies Equation 1: 1≤ XY/Z ≤3. In Equation 1, X(mol%) is the molar number of Co in the coating layer based on 100 moles of the nickel-based lithium composite metal oxide, Y(µm) is the average particle diameter of nodules of the nickel-based lithium composite metal oxide, and Z(µm) is D<50> of the positive electrode active material, Z is 5 µm to 12 µm, and a ratio of Z to Y (Z/Y) is from 1 to 2.
Absstract of: EP4838673A2
0001 A battery cell, a battery, and an electrical device. The battery cell (10) includes: a shell (11) having an end opening (12); an electrode assembly (20) disposed in the shell (11); a support member (50) located between the electrode assembly (20) and the shell (11) and configured to support the electrode assembly (20); an end cover assembly (30) including a cover plate (31) and an isolation structure (32), the cover plate (31) being configured to cover the end opening (12), and the isolation structure (32) being located on a side, adjacent to the electrode assembly (20), of the cover plate (31); and an insulating member (40) located between the electrode assembly (20) and the shell (11), where the support member (50) is fixedly connected to the isolation structure (32), and the insulating member (40) is fixedly connected to at least one of the support member (50) and the isolation structure (32).
Absstract of: EP4838687A2
0001 Provided are a protective cover, a battery disconnect unit (BDU) case, a BDU and a battery PACK case. The protective cover includes a water blocking member and a side protection member. The water blocking member includes a water blocking plate, the water blocking plate is arranged with a water blocking flange, the water blocking flange is configured to engage to the BDU upper cover, so that the water blocking plate seals the upper opening of the first notch of the BDU upper cover. The side protection member is arranged on the side of the water blocking member, engaged to the BDU base, and can cover a part of the side opening of the first notch. According to the present application, the electrical safety and service life of the BDU can be ensured.
Absstract of: EP4838607A1
This application provides an electrochemical apparatus and an electronic apparatus. The electrochemical apparatus includes an electrolyte, a separator, a positive electrode sheet, and a negative electrode sheet. The electrolyte includes a compound represented by formula (I), where based on a mass of the electrolyte, a mass percentage of the compound represented by formula (I) is A%, and 30 ≤ A ≤ 80. The separator includes a porous substrate and a porous coating disposed on at least one side of the porous substrate, and a porosity of the separator is 25% to 35%. In this application, the separator structure and the electrolyte components are adjusted and combined, and the synergistic effect of the two improves the OCPD cycling performance of the electrochemical apparatus.
Absstract of: EP4838568A1
A positive electrode plate (100) and a preparation method thereof, a battery, and a vehicle. The positive electrode plate (100) includes a current collector (11), a first positive electrode active material layer (12), and a second positive electrode active material layer (13). The first positive electrode active material layer (12) is disposed on at least one side of the current collector (11). The first positive electrode active material layer (12) includes a first positive electrode active material. The first positive electrode active material includes LiNixCoyMn1-x-yO2, where 0.6≤x≤0.95, 0.03≤y≤0.1, and 0
Absstract of: EP4838160A1
The present disclosure relates to a battery baking device and a control method therefor. The battery baking device comprises a controller, probes, and probe bases corresponding to the probes. The probes include auxiliary probes and additional probes. The auxiliary probes are configured to be in contact with the corresponding probe bases to form an auxiliary probe operating circuit. The additional probes are configured to be in contact with the corresponding probe bases to form an additional probe operating circuit. The controller is configured to, on the basis of a heating instruction, control to supply power to the auxiliary probes in the battery baking device, and when the auxiliary probes are powered on, control to supply power to the additional probes in the battery baking device. The conductor contact length between the auxiliary probes and the corresponding probe bases is shorter than that between the additional probes and the corresponding probe bases. In the device, the relatively short auxiliary probes are powered on such that the auxiliary probes are in effective contact with the corresponding probe bases, and the relatively long additional probes are also in effective contact with the corresponding probe bases under the action of pressure, thereby reducing failures caused by poor contact between probes and bases, and reducing the device failure rate.
Absstract of: EP4838596A1
0001 Embodiments of the present application relate to the technical field of wound battery cells, and provide a high-speed winding process and a wound battery cell. The winding process comprises the following continuously performed procedures: an electrode sheet connection procedure, a combining procedure, and a winding procedure. The connection procedure comprises: using a first connecting strip to connect the tail of a first cathode sheet segment and the head of a second cathode sheet segment, and using a second connecting strip to connect the tail of a first anode sheet segment and the head of a second anode sheet segment. The combining procedure comprises: combining the first connecting strip, a first separator, the second connecting strip, and a second separator to form a multi-layer structure strip. The winding procedure comprises: winding the multi-layer structure strip to form a battery cell, and cutting at the connection location between the first separator, the first connecting strip, the second separator, and the second connecting strip to start winding a next battery cell. The first connecting strip and the second connecting strip are both porous-structured connecting strips. The winding process provided by the embodiments of the present application enables high-speed winding and improves the performance stability of the prepared wound battery cells.
Absstract of: EP4839026A1
A protection circuit module assembly, a battery, and an electrical device are provided. The protection circuit module assembly includes a first circuit board, a connector, a first electronic component, and an encapsulation member. The first circuit board includes a base portion and a first extension section connected to the base portion. The first extension section protrudes beyond the base portion, and the first extension section includes a first surface and a second surface disposed opposite to each other along a first arrangement direction. The connector is connected to the first surface, and is configured to be electrically connected to an external circuit. The first electronic component is connected to the second surface, and is configured to form a protection circuit. The encapsulation member is connected to the second surface and encapsulates the first electronic component. Along a first arrangement direction, a projection of the encapsulation member overlaps a projection of the connector. The protection circuit module assembly improves the energy density of a battery equipped with the protection circuit module assembly.
Absstract of: EP4838622A2
0001 Provided is an electrode assembly (1) in which a first electrode (2), a first separation layer (3), a second electrode (4) and a second separation layer (3) in the state of being stacked are wound in a lengthwise direction, in a cylindrical shape, while surrounding a winding center, an active material is applied to both surfaces of the first electrode (2) to constitute a first electrode coated portion, an active material is not applied to an end portion of one side of the first electrode (2) in an axial direction (a widthwise direction) thereof to constitute a first electrode uncoated portion (21), an active material is applied to both surfaces of the second electrode (4) to constitute a second electrode coated portion (42), an active material is not applied to an end portion of the other side of the second electrode (4) in an axial direction (a widthwise direction) thereof to constitute a second electrode uncoated portion (41), and a predetermined section from a boundary portion between the second electrode coated portion (42) and the second electrode uncoated portion (41) to an end portion of the second electrode uncoated portion (41) is coated with an insulation material to form an insulation coating layer (45).
Absstract of: EP4837661A1
A coating device, a coating method, and a battery production line, relating to the technical field of batteries. The coating device is used for coating a base material (20) with functional layers (30, 40), and in the thickness direction of the base material (20), the base material (20) comprises a first surface and a second surface which are opposite to each other. The coating device comprises a first coating roller (11), a second coating roller (12), and a first driving member (13); the first coating roller (11) is used for coating the first surface with a first functional layer (30); along the web travel direction of the base material (20), the second coating roller (12) is arranged at the downstream or upstream of the first coating roller (11) and is used for coating the second surface with a second functional layer (40); and the first driving member (13) is connected to the first coating roller (11) and is used for driving the first coating roller (11) to reciprocate in the axial direction.
Absstract of: EP4837662A1
A coating method and system, a computer device, and a storage medium, relating to the technical field of battery production, at least solving the problem in the related art of insufficient accuracy in a non-thinned region resulting from employing an extreme value deviation algorithm for edge finding in the non-thinned region. The method comprises: acquiring coating weight data corresponding to an electrode sheet (S11), wherein the electrode sheet comprises a coating region and a blank region, and the coating region is coated with an active material layer; determining the coating region from the electrode sheet on the basis of the coating weight data and reference weight corresponding to the electrode sheet (S12), wherein the coating region comprises a thinned region and a non-thinned region, and the coating thickness of the thinned region is less than that of the non-thinned region; and determining the non-thinned region from the coating region on the basis of attribute information of the electrode sheet (S13).
Absstract of: EP4838595A1
0001 The present application relates to a battery cell hot-pressing device and a battery production apparatus. The battery cell hot-pressing device comprises a first hot-pressing assembly which comprises a first pressing plate and second pressing plates adjacent to the first pressing plate, wherein the first pressing plate and the second pressing plates are aligned to form a first hot-pressing surface so as to press and cover at least part of a first surface of a battery cell, and the first pressing plate and the second pressing plates can alternately ascend and descend relative to a first direction; and a second hot-pressing assembly, arranged opposite to the first hot-pressing assembly in the first direction and comprising a third pressing plate and fourth pressing plates adjacent to the third pressing plate, wherein the third pressing plate and the fourth pressing plates are aligned to form a second hot-pressing surface so as to press and cove at least part of a second surface of the battery cell, and the third pressing plate can ascend and descend in the first direction relative to the fourth pressing plates. The battery cell hot-pressing device of the present application can effectively improve the efficiency of feeding a battery cell to a hot-pressing station for hot-pressing shaping, thereby improving the production efficiency of battery cells.
Absstract of: EP4838658A1
0001 A battery (100) and an electric device. The battery (100) comprises a case (10) and battery cells (20). The case (10) comprises: a case body (13); at least two limiting beams (14), wherein the at least two limiting beams (14) and the case body (13) define an accommodating space (16), the limiting beams (14) each comprise a first beam side surface (141) and a second beam side surface (142), the second beam side surface (142) is configured to be a vertical plane for abutting against the largest surfaces of the battery cells (20), and the second beam side surface (142) and at least part of the first beam side surface (141) are arranged at an included angle; and fixing members (15) connected between the limiting beams (14) in a first direction. The battery cells (20) in the accommodating space (16) are constrained by means of the limiting beams (14), the first beam side surfaces (141) abut against the largest surfaces of the battery cells (20), and at least parts of the first beam side surfaces (141) are inclined toward the second beam side surfaces (142), such that the limiting beams (14) provide stable support to constrain expansion on the battery cells (20); and in addition, the fixing members (15) can limit the limiting beams (14) in the first direction, thereby reducing the probability of tilting of the limiting beams (14) under the expansion deformation of the battery cells (20), and further improving the expansion constraint force on the battery cells (20).
Absstract of: EP4837857A1
Embodiments of the present application provide an energy storage container. The energy storage container comprises a container body and anti-collision members. The anti-collision members are arranged on the container body. Each anti-collision member comprises a guide portion. The anti-collision members are arranged on the container body, improving the anti-collision performance of the container body, and reducing the risk of damage to the energy storage container due to collisions during movement. The anti-collision members are each provided with a guide portion, and by providing the guide portions, the guide portions can guide the energy storage container to move, reducing the transfer difficulty of the energy storage container.
Absstract of: EP4838666A1
A battery cell (6), a battery (2), and an electrical device. The battery cell (6) comprises an electrode assembly (10), a casing (20), a pressure relief mechanism (40), and a protective member (50). The electrode assembly (10) is accommodated in the casing (20). The casing (20) comprises a wall portion. The pressure relief mechanism (40) is arranged on the wall portion. In the thickness direction of the wall portion, at least part of the protective member (50) is provided between the pressure relief mechanism (40) and the electrode assembly (10). When a high-temperature substance outside the battery cell (6) acts on the pressure relief mechanism (40) and melts through the pressure relief mechanism (40), the protective member (50) can bear the thermal shock of the high-temperature substance and separate at least part of the high-temperature substance from the electrode assembly (10), so that the risk of conduction of a positive electrode and a negative electrode of the electrode assembly (10) by the high-temperature substance is reduced, thereby improving the reliability of the battery cell (6).
Absstract of: EP4838580A1
Large-particle, low-specific-surface-area and high-dynamics lithium iron phosphate particles. The primary average particle size of the lithium iron phosphate particles is 500-3000 nm, and the BET specific surface area thereof is 3 m2/g to 8 m2/g. By means of calculation on the basis of the total weight of the lithium iron phosphate particles, the carbon content of the lithium iron phosphate particles is Cx weight%, where 0.8 ≤Cx≤2.0.
Absstract of: EP4838572A1
0001 A positive electrode plate, comprising a current collector and a positive electrode active layer, the positive electrode active layer being arranged on at least one surface of the current collector, and the positive electrode active layer comprising a first active layer directly coated on the current collector and a second active layer coated on the surface of the side of the first active layer furthest from the current collector side, wherein the first active layer comprises first lithium iron phosphate particles and the thickness of the first active layer is in the range of 15-60 µm, the second active layer comprises second lithium iron phosphate particles and/or second manganese iron phosphate particles and the thickness of the second active layer is in the range from 60-130 µm, the primary average particle size of the first lithium iron phosphate particles is 500-3000 nm, and that of the second lithium iron phosphate particles and/or the second manganese iron phosphate particles is 150-480 nm.
Absstract of: EP4837676A1
0001 A recycled material powder from lithium-ion batteries, a preparation method therefor, and use thereof are disclosed, which is related to the technical field of battery recycling. The recycled material powder from lithium-ion batteries comprises a metal compound powder and an elemental carbon material, and the metal compound powder includes at least one element selected form the group consisting of lithium, nickel, cobalt, manganese and iron; the recycled material powder from lithium-ion batteries has a separation index S satisfying 0.15 m<2>/kg≤S≤43 m<2>/kg, where S=W
Absstract of: EP4838636A1
0001 A battery cell, a battery (2), and an electrical apparatus. The battery cell comprises a housing (10), a first valve (20), and a second valve (30). The housing (10) is provided with a liquid injection hole (11) and a gas release hole (12), one of the first valve (20) and the second valve (30) being disposed at the liquid injection hole (11), and the other of the first valve (20) and the second valve (30) being disposed at the gas release hole (12). The first valve (20) and the second valve (30) are both configured to be capable of switching between connecting and disconnecting the internal space of the housing (10) and the external space of the housing (10).
Absstract of: EP4838618A1
Disclosed in the present application are a battery cell, a battery, and an electric apparatus. The battery cell comprises a housing and a detection module, wherein the housing comprises a wall portion, the wall portion comprising a light-transmitting component; and the detection module is arranged inside the housing, and the detection module comprises a detection element and a first optical communication element, the detection element being connected to the first optical communication element, the first element being used for detecting state data of the battery cell, and the first optical communication element being used for transmitting, to the outside of the housing and by means of the light-transmitting component, signal light that is generated on the basis of the state data. Thus, compared with wired transmission, the wireless transmission of state data of a battery to the outer side of a battery cell can further reduce the complexity of wiring harnesses in the battery cell, and it is not necessary to additionally provide, on the housing, a through hole for the wiring harnesses to pass through, thereby reducing the overall processing difficulty.
Absstract of: EP4838633A1
The present invention relates to a battery and an electrical apparatus. The battery comprises a battery cell, and a composite heat insulation pad disposed on at least one side of the battery cell, the composite heat insulation pad comprises a first heat insulation layer, a composite phase change layer, and a second heat insulation layer which are arranged in a stacked manner, the composite phase change layer comprising a phase change material layer, and a packaging layer disposed surrounding the phase change material layer; the thickness of the composite phase change layer is 1 mm to 4 mm, and the thicknesses of each of the first heat insulation layer and the second heat insulation layer are independently 1 mm to 3 mm. Due to the stacked arrangement structure and thickness optimization of the first heat insulation layer, the composite phase change layer and the second heat insulation layer of the composite heat insulation pad, a better heat insulation effect is obtained, and the battery applying said composite heat insulation pad has good resistance to thermal runaway.
Absstract of: EP4837883A1
0001 This invention relates to a process for preparing composite particles suitable as anode active materials in metal ion batteries. Thermal decomposition of a silicon-containing precursor material is used to deposit a plurality of nanoscale silicon domains into the pore network of porous particles comprising micropores and mesopores. The composite particles are subsequently subjected to a stabilisation treatment using liquid water or water vapour at elevated temperature which is found to reduce the problem of hydrogen evolution during the processing of the composite particles to form electrodes.
Nº publicación: EP4838635A1 11/11/2026
Applicant:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited
Absstract of: EP4838635A1
A battery and an electric device. The battery comprises: a case (10), which is provided with an accommodating cavity (101); a battery assembly (20), which is arranged inside the accommodating cavity (101); a thermal management component (30), which is configured to heat and cool the battery assembly (20), wherein the thermal management component (30) comprises second heat exchangers (32), the second heat exchangers (32) being arranged between the battery assembly (20) and the top wall and/or bottom wall of the accommodating cavity (101); and a phase change material component (40), which extends in the circumferential direction of the battery assembly (20) and is arranged on the peripheral side of the battery assembly (20), thereby exchanging heat with battery cells (211) on the peripheral side of the battery assembly (20).
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