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POSITIVE ELECTRODE ACTIVE MATERIAL, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4607612A1

Embodiments of this application provide a positive electrode active material, a battery cell, a battery, and a power consuming apparatus. The positive electrode active material includes: a matrix, where a chemical formula of the matrix is LiLixNiaCobMncMdO2, M includes at least one of Mg, Nb, Cr, Ce, Fe, Ta, B, Al, V, Ti, Zr, Sn, P, and Mo, x+a+b+c+d=1, x>0, a>0, 00, and d≥0; and a coating layer, where the coating layer is disposed on a surface of the matrix, and the coating layer includes boron-containing alloy. The technical solutions of this application can improve an energy retention rate and an initial gram capacity of a battery.

POUCH-TYPE SECONDARY BATTERY

Resumen de: EP4607663A1

A pouch type secondary battery according to the present invention includes an electrode assembly, a pouch type case including an accommodation portion for accommodating the electrode assembly and a sealing portion for sealing the accommodation portion, an electrode lead connected to the electrode assembly and protruding to the outside of the pouch type case via the sealing portion, a lead film disposed between the electrode lead and the pouch type case, and a gas guide portion disposed between the electrode lead and the lead film, wherein the gas guide portion includes a first layer in contact with the lead film, and the first layer includes a polymer film having a storage modulus of 30 MPa to 650 MPa measured at 100 °C.

HIGH-CAPACITY LONG-CYCLE LIFE LOW-COBALT SINGLE CRYSTAL POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR

Resumen de: EP4607607A1

The present application belongs to the technical field of lithium battery positive electrode materials, and discloses a low-cobalt single crystal positive electrode material with high capacity and long cycle life. The interior of the particle is divided into a first region and a second region, and the cobalt concentrations in the first and second region are in a gradient distribution, decreasing from outside to inside at decreasing rates of 6% to 20% and 0.1% to 6% per 100 nm, respectively. This design can significantly improve the initial charge/discharge capacity and rate performance, and can significantly enhance the high-temperature cycling performance. The method for preparing the low-cobalt single crystal positive electrode material is also provided, which has a simple process and low cost. Through appropriate selection of small particles of high-nickel low-cobalt precursors, combined with element doping, coating modification, and dry sintering processes, the method can regulate particle size morphology and structure of the low-cobalt single crystal positive electrode material, and modify the crystal structure and the surface material, resulting in a two-tier decreasing cobalt concentration gradient distribution from the outside to the inside, which addresses the common issues of high-nickel low-cobalt positive electrode materials, such as high residual lithium content, poor power performance and cycling performance, and inferior safety performance.

POUCH-TYPE SECONDARY BATTERY

Resumen de: EP4607681A1

A pouch type secondary battery according to the present invention includes an electrode assembly, a pouch type case including an accommodation portion for accommodating the electrode assembly and a sealing portion for sealing the accommodation portion, an electrode lead connected to the electrode assembly and protruding to the outside of the pouch type case via the sealing portion, a lead film disposed between the electrode lead and the pouch type case, and a gas guide portion disposed between the electrode lead and the lead film. The gas guide portion includes a first layer in contact with the electrode lead, and a second layer disposed on the first layer, and the first layer includes a modified polyolefin resin.

BATTERY CELL

Resumen de: EP4607684A1

The application discloses a battery cell. The battery cell includes a top cover assembly, two cell packs and pins; the two cell packs are arranged side by side along a first direction, and tabs are respectively provided at two ends of each of the cell packs along a second direction; the pins are each include a first connection portion and a second connection portion; the first connection portion is connected to the top cover assembly, and the second connection portion includes two welding plates that are arranged at an interval and are perpendicular to the first direction, and two of the tabs of the two cell packs located on a same side are respectively connected to sides of the two welding plates facing away from each other, and a distance between surfaces of the two welding plates facing away from each other along the first direction is d.

LITHIUM-RICH MANGANESE-BASED POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, BATTERY AND ELECTRONIC EQUIPMENT

Resumen de: EP4607614A1

The present application provides a lithium-rich manganese-based positive electrode material and a production method, a positive electrode sheet, a battery and an electronic device thereof. The lithium-rich manganese-based positive electrode material comprises a first particle and a second particle. The first particle satisfies chemical formula (1), and the second particle satisfies chemical formula (2): aLi2O·bLi2MnO3·cLiXαX'βO2 (1), xLi2O·yLi2MnO3·zLiYγY'δO2 (2), wherein in formula (1), -0.1≤a≤0, 00, b+c-a=1; in formula (2), 0≤x≤0.1, 0.4

LITHIUM SECONDARY BATTERY AND ELECTRICAL DEVICE

Resumen de: EP4607640A1

The present application provides a lithium secondary battery and an electrical device. The lithium secondary battery comprises a positive electrode sheet and a negative electrode sheet; the lithium content per unit area on a single side surface of the positive electrode sheet is denoted as Wa, and the unit of Wa is g/m<2>; the lithium content per unit area on a single side surface of the negative electrode sheet is denoted as Wc, and the unit of Wc is g/m<2>; the reversible capacity per unit area on the surface of the side of the negative electrode sheet facing towards the positive electrode sheet is denoted as Da, and the unit of Da is mAh/m<2>; the first lithium intercalation capacity per unit area on the surface of the side of the negative electrode sheet facing away from the positive electrode sheet is denoted as Ca, and the unit of Ca is mAh/m<2>; and the lithium secondary battery meets the following conditions: (aa) and/or (bb), wherein C1 is the theoretical capacity, 3861 mAh/g, of lithium metal. 70%≤C1×Wa+WcDa≤90%63%≤C1×Wa+WcCa≤81%

ELECTRODE RAW MATERIAL TRANSFER SYSTEM

Resumen de: EP4606467A1

The electrode raw material transfer system according to one example of the present invention comprises a stirring part having an inlet portion into which electrode raw materials are introduced, and provided to perform a mixing process for the electrode raw materials, a sensor part provided to measure a pressure within the stirring part, an air injection part provided at the inlet portion of the stirring part and provided to spray air into the inlet portion, a vibration part provided to apply vibration to the inlet portion, and a control part provided to adjust an air injection pressure of the air injection part, based on the pressure within the stirring part.

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: EP4607675A1

Embodiments of the present application provide a battery cell, a battery, and an electrical device, which belong to the technical field of batteries. The battery cell includes a shell which includes a pressure relief component, in which, the pressure relief component is provided with a groove portion, is configured to be capable of cracking along the groove portion so as to release the pressure inside the battery cell, and has a fracture initiation position. The groove portion includes a first groove section, a second groove section and a third groove section, in which, the first groove section and the third groove section are oppositely arranged, and the second groove section is connected to the first groove section and the third groove section. The fracture initiation positions are formed at the first groove section and/or the third groove section. No fracture initiation position is formed at the second groove section, such that the pressure relief component has high fatigue resistance at the area of the second groove section, thereby reducing the possibility of the pressure relief component cracking at the middle area of the second groove section during the normal use of the battery cell, thus improving the long-term reliability of the pressure relief component, and prolonging the service life of the battery cell.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4607676A1

The present application provides a battery cell, a battery, and an electrical device, and relates to the field of batteries. The battery cell includes a shell, the shell has a wall portion, the wall portion includes a weak portion, and the weak portion is configured to be destroyed when the battery cell releases internal pressure. An outer surface of the wall portion has a center point. A maximum distance between a projection of the weak portion on the outer surface of the wall portion and the center point is a, the minimum radial dimension of the outer surface of the wall portion is A, and a and A satisfy: a≤0.4A. The radial direction refers to a direction passing through the center point. By setting a≤0.4A, the weak portion is arranged at a region, with a relatively low stiffness, of the wall portion. When the battery cell releases the internal pressure, the region undergoes a large deformation under the action of gas, and therefore the weak portion arranged at the region is easily damaged. Under the condition of the same fracture initiation pressure, the thickness of the weak portion arranged at the region can be larger. When the battery cell is normally used, the weak portion has a stronger ability to resist external impact, so as to reduce the risk of the weak portion being damaged prematurely.

APPARATUS AND METHOD FOR MANUFACTURING ELECTRODE ASSEMBLY

Resumen de: EP4607634A1

An apparatus (1) for manufacturing an electrode assembly includes a positive electrode plate supply part (30) configured to supply a positive electrode plate (71), a positive electrode plate moving part (10) configured to move the positive electrode plate (71) located on the positive electrode plate supply part (30), a negative electrode plate supply part (40) configured to supply a negative electrode plate (72), a negative electrode plate moving part (20) configured to move the negative electrode plate (72) located on the negative electrode plate supply part (40), and a stacking part (50) on which the positive electrode plate (71) moved from the positive electrode plate moving part (10) and the negative electrode plate (72) moved from the negative electrode plate moving part (20) are alternately stacked.

CONDUCTIVE-MATERIAL-DISPERSED SOLUTION, ANODE SLURRY COMPOSITION, AND ANODE FOR SECONDARY BATTERY

Resumen de: EP4607623A1

A conductive-material-dispersed solution, according to one implementation, comprises a conductive material, a dispersant and a dispersion medium, wherein the conductive material comprises single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs), and the solid content of the conductive-material-dispersed solution is 1.5 wt% or greater. According to the one implementation, the provided conductive-material-dispersed solution has the conductive material predispersed therein to an excellent level such that, when added to an anode slurry composition, dispersibility and the like of the conductive material are effectively improved, and inhibits aggregation between constituent elements in the anode slurry such that high solid content characteristics and the like in a slurry can be ensured.

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4607639A1

Provided is a non-aqueous electrolyte secondary battery provided with: a non-aqueous electrolytic liquid that contains a sulfonylimide compound and a chain carbonate-based solvent and/or a saturated cyclic carbonate-based solvent, and contains at least one selected from the group consisting of a carbonate species, an unsaturated cyclic carbonate-based compound, a compound represented by General Formula (4) of MPO_cF_d, and a phosphorus atom-containing compound represented by General Formula (5) of -P(=O)(OR¹)O-_n; a negative electrode containing a first graphite having a D/G ratio of greater than 0.7 or a full-width at half-maximum of a G-band of greater than 28 cm^-1, and containing a second graphite having a D/G ratio or a full-width at half-maximum of the G-band of the corresponding value or less at an amount of from 0 mass% to 10 mass% per 100 mass% of the total amount of the first graphite and the second graphite; and a positive electrode.

HIGH-NICKEL COBALT-FREE POSITIVE ELECTRODE MATERIAL CAPABLE OF DUAL RESIDUAL ALKALI REDUCTION AND PREPARATION METHOD THEREFOR

Resumen de: EP4607613A1

Provided in the present disclosure are a high-nickel cobalt-free positive electrode material with double reduction of residual alkali and a preparation method thereof. A chemical expression of the high-nickel cobalt-free positive electrode material is LixNiyMn1-yAzO2, where 0.75

HEAT DISSIPATION APPARATUS, VEHICLE, AND HEAT DISSIPATION CONTROL METHOD

Resumen de: EP4607652A1

A heat dissipation apparatus, a vehicle, and a heat dissipation control method are disclosed. The heat dissipation apparatus includes a housing and an air cooling part. The housing includes a first plate body, an intelligent module close to the first plate body is disposed in the housing, and the air cooling part and the intelligent module are disposed on a same side of the first plate body. The first plate body has a first cavity inside, the first plate body is located in a plurality of liquid cooling loops, and the air cooling part and/or the first plate body are/is configured to dissipate heat for the intelligent module. According to the foregoing solution, the heat dissipation apparatus may dissipate heat for the intelligent module in a liquid cooling heat dissipation mode or a heat dissipation mode combining air cooling and liquid cooling, and has a strong heat dissipation capability. Therefore, a heat dissipation effect on the intelligent module can be enhanced, and a heat dissipation requirement of the intelligent module can be met. In addition, the first plate body may be connected to an appropriate liquid cooling loop to avoid a condensation phenomenon of the intelligent module when the liquid cooling heat dissipation mode is used for the intelligent module, so that a short circuit caused by the condensation phenomenon of the intelligent module can be avoided, and safety of heat dissipation of the intelligent module can be improved.

BATTERY ABNORMALITY DIAGNOSIS APPARATUS, AND OPERATING METHOD THEREFOR

Resumen de: EP4607221A1

A battery abnormality diagnosis apparatus according to an embodiment disclosed herein includes an obtaining unit configured to obtain voltage-state-of-charge (SOC) profiles of a plurality of battery units, an identifying unit configured to identify a designated first number of ranks of each of the plurality of battery units, based on the voltage-SOC profiles, and a diagnosing unit configured to diagnose abnormality of the plurality of battery units, based on changes of the ranks.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4607679A1

Provided in the present application are a battery cell (10), a battery (100), and an electrical device. The electrical device comprises a battery (100). The battery (100) comprises a battery cell (10). The battery cell (10) comprises an outer housing (12), an electrode assembly (11), and an insulating member (13). The end of the outer housing (12) in the first direction (Z) is provided with a pressure relief mechanism (123). The insulating member (13) is provided in the outer housing (12) and is located at the end of the electrode assembly (11) near the pressure relief mechanism (123). In a direction intersecting the first direction (Z), a pressure relief gap (101) is provided between a side portion of the insulating member (13) and the outer housing (12). A pressure relief recess (102) in communication with the pressure relief gap (101) is disposed on the side portion of the insulating member (13). A pressure relief channel (103) that is in communication with the pressure relief recess (102) and disposed opposite to the pressure relief mechanism (123) is also provided in the outer housing (12). In this way, the problem of damage or even explosion of the electrode assembly (11) due to the pressure of the electrode assembly (11) not being released in time can be solved.

BATTERY AND ELECTRIC DEVICE

Resumen de: EP4607653A1

The present application provides a battery and an electric device, relating to the technical field of batteries. The battery includes a plurality of battery cells, wherein the plurality of battery cells are stacked in a first direction, the plurality of battery cells include two first battery cells located at two ends in the first direction, two adjacent battery cells are provided therebetween with at least one first thermal management component, and one side of at least one of the first battery cells away from the first thermal management component in the first direction is provided with at least one second thermal management component, where in the first direction, the thickness of the at least one second thermal management component is less than the that of the at least one first thermal management component, so that the amount by which the at least one second thermal management component may be compressed in the first direction matches the amount of expansion of the first battery cell in the direction away from the first thermal management component, thereby meeting the expansion requirement of the first battery cell in the direction away from the first thermal management component, and reducing the space occupied by the second thermal management component in the first direction, which is beneficial to improve the energy density of the battery.

BATTERY

Resumen de: EP4607643A1

Provided is a battery including a positive electrode layer, a negative electrode layer, and an electrolyte layer disposed between the positive electrode layer and the negative electrode layer, in which the electrolyte layer contains a polymer having an ability to preferentially conduct metal ions, and a thickness ratio between the positive electrode layer and the electrolyte layer is 10:1 to 0.5:1.

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: EP4607677A1

This application provides a battery cell, a battery, and an electric apparatus, and pertains to the field of battery technologies. The battery cell includes an outer shell, the outer shell has a wall portion, and along a thickness direction of the wall portion, the wall portion has a first surface and a second surface opposite to each other. The first surface is provided with a first groove, the second surface is provided with a second groove at a position corresponding to the first groove, a bottom surface of the first groove is provided with a scored groove, and the wall portion is capable of rupturing along the scored groove during pressure relief of the battery cell. This battery cell, first, can reduce the depth required to provide the scored groove on the wall portion, helping lower the manufacturing difficulty of the scored groove and the requirements on production devices, thereby reducing manufacturing costs, and can reduce the forming force exerted on the wall portion in processing the scored groove, helping mitigate the risk of cracks in the wall portion. Second, it can improve the morphology of a flow material during the formation of the scored groove, facilitating the flow of the material generated during the formation of the scored groove, thereby enhancing the structural consistency of the scored groove.

BATTERY AND ELECTRIC DEVICE

Resumen de: EP4607654A1

A battery (200) and an electrical apparatus (1000). The battery (200) includes a plurality of rows of battery units (10A) and a heat exchange assembly (140). The plurality of rows of battery units (10A) are arranged in a first direction. Each row of battery units (10A) comprises a plurality of battery cells (10) arranged in sequence in a second direction. Each battery cell (10) includes a first side wall (111). The first side wall (111) is the side wall with the largest area. The first direction and the second direction are perpendicular to each other. The heat exchange assembly (140) includes a heat conducting plate (70). The heat conducting plate (70) extends between adjacent rows of battery units (10A). The heat conducting plate (70) directly faces the first side walls (111) of at least some of the adjacent battery cells (10) of adjacent battery units (10A).

BATTERY AND LAMINATE

Resumen de: EP4607642A1

A battery includes a positive electrode, a negative electrode, and an electrolyte layer disposed between the positive electrode and the negative electrode, wherein the electrolyte layer includes a first electrolyte layer and a second electrolyte layer, the first electrolyte layer is disposed between the positive electrode and the second electrolyte layer, the first electrolyte layer contains a material different from a material of the second electrolyte layer, the first electrolyte layer contains a solid electrolyte material containing an alkali metal element, a metal element except alkali metal elements or a metalloid element, and a halogen element, and the metal element except alkali metal elements or the metalloid element includes at least one of Zr and In.

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: EP4607686A1

A battery cell, a battery and an electric device, which belong to the technical field of batteries. The battery cell comprises a casing assembly and a battery cell assembly, wherein the casing assembly comprises a casing and a first electrode post; the casing is provided with a mounting hole, through which the first electrode post passes; the battery cell assembly comprises an active-substance coated portion and an electrically conductive portion; the active-substance coated portion is provided in the casing, the electrically conductive portion is electrically connected to the active-substance coated portion and the first electrode post; the first electrode post comprises a first electrode-post portion and a second electrode-post portion, which are formed in a split manner; at least part of the first electrode-post portion is stopped outside the casing; and at least part of the second electrode-post portion is stopped inside the casing, and the second electrode-post portion is connected to the electrically conductive portion.

SELF-SUPPORTING SEPARATOR FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE COMPRISING SAME

Resumen de: EP4607682A1

The present disclosure relates to a self-supporting separator for an electrochemical device and an electrochemical device including the same, and relates to a self-supporting separator for an electrochemical device, which includes a negative electrode containing a silicon-based active material, wherein the self-supporting separator for an electrochemical device improves compression resistance, improves energy density, and exhibits high lifespan characteristics by adjusting the surface roughness Sa of the separator by adjusting the content and average particle diameter of the inorganic particles, and an electrochemical device including the same.

HIGH-VISCOSITY BINDER CONVEYING SYSTEM AND LITHIUM BATTERY SLURRY PRODUCTION LINE

Nº publicación: EP4607027A1 27/08/2025

Solicitante:

GUANGDONG SOPHON INTELLIGENT TECH CO LTD [CN]
SOPHON TECH HUNGARY CO KFT [HU]
Guangdong Sophon Intelligent Technology Co., Ltd,
Sophon Technology (Hungary) Co. Kft

Resumen de: EP4607027A1

Disclosed is a high-viscosity binder conveying system and a lithium battery slurry production line. The high-viscosity binder conveying system includes a storage tank (100) and a conveying pipeline (200), wherein an input end of the conveying pipeline is connected to the bottom of the storage tank. The high-viscosity binder conveying system further includes a pressurizing device (300), wherein the pressurizing device is connected to the storage tank and configured to fill a positive pressure into the storage tank. The conveying pipeline includes an input pipe (210) and an output pipe (220), wherein an input end of the input pipe is connected to the bottom of the storage tank. The high-viscosity binder conveying system further includes a kneading peristaltic rotor pump (400), wherein an input end of the kneading peristaltic rotor pump is connected to an output end of the input pipe, and an output end of the kneading peristaltic rotor pump is connected to an input end of the output pipe. In this way, the positive pressure and the kneading peristaltic rotor pump work together to convey a high-viscosity binder, thereby suppressing the quality deterioration of the high-viscosity binder and improving the quality of the high-viscosity binder.