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BATTERY STRUCTURE

Resumen de: CN119731842A

The invention relates to a battery structure comprising a protective device, a protective device for a battery housing and a fiber-matrix semi-finished product for producing the protective device.

METHODS FOR PREPARING LITHIUM TRANSITION METAL OXIDE FROM ELEMENTAL METAL FEEDSTOCKS AND PRODUCTS THEREOF

Resumen de: CN119894829A

Disclosed herein are methods of preparing lithium transition metal oxide cathode materials for secondary batteries and other applications from elemental feedstocks and products thereof. The methods disclosed herein may include mixing at least one transition metal in elemental form with a lithium source in a dry solid state mixing process followed by a sintering step to form a lithium transition metal oxide cathode material.

BATTERY SELF-HEATING DEVICE AND VEHICLE WITH SAME

Resumen de: EP4576334A1

A vehicle, which is provided with a battery self-heating device. The battery self-heating device comprises a power storage device, an inductor, a control unit and a capacitor. The power storage device comprises a first power storage device and a second power storage device, which are arranged in series. One end of the inductor is connected between the first power storage device and the second power storage device. The control unit comprises at least one phase of bridge arm. The other end of the inductor is connected to the midpoint of the at least one phase of bridge arm. Two ends of the at least one phase of bridge arm are respectively connected to a positive electrode and a negative electrode of the power storage device. Two ends of the capacitor are respectively connected to the positive electrode and the negative electrode of the power storage device. The capacitor comprises a first X capacitor and a second X capacitor, which are connected in series. One end of the inductor is connected between the first X capacitor and the second X capacitor.

METHOD AND APPARATUS FOR INHIBITING VEHICLE VIBRATION DURING SELF-HEATING PROCESS OF BATTERY, AND AUTOMOBILE

Resumen de: EP4576333A1

A method and apparatus for inhibiting vehicle vibration during a self-heating process of a battery, and an automobile. The method comprises: controlling a power battery pack (E) to output a driving current to a first motor (M1) so as to drive the first motor to rotate, and when the first motor rotates, dragging a second motor (M2) to rotate; controlling the power battery pack to output a self-heating current to the second motor so as to perform self-heating of a power battery; acquiring a real-time rotation speed of the first motor; and controlling a fundamental wave frequency of the self-heating current according to the real-time rotation speed, so that the fundamental wave frequency and the real-time rotation speed form staggered peaks.

LITHIUM-ION BATTERY WITH ELECTRODE CERAMIC COATING

Resumen de: CN119744463A

The present invention provides an electrode having a ceramic coating comprising a ceramic powder and a binder, the electrode having a surface roughness Ra of 0.4 mu m to 1.6 mu m, preferably 0.6 mu m to 1.4 mu m, further preferably 0.8 mu m to 1.2 mu m. The invention further provides a lithium ion battery which comprises a positive electrode, a negative electrode, electrolyte and a shell, the positive electrode comprises a positive electrode current collector and a positive electrode active material coated on the positive electrode current collector, and the negative electrode comprises a negative electrode current collector and a negative electrode active material coated on the negative electrode current collector; wherein the positive electrode and the negative electrode are opposite to each other, at least one of the positive electrode and the negative electrode is the electrode with the ceramic coating, and the ceramic coating is located on at least one surface, opposite to each other, of the positive electrode and the negative electrode. The ceramic coating can replace a battery diaphragm in the general sense, and can improve the cycle life and thermal stability of the lithium ion battery.

METHODS FOR PRODUCING ELECTRODE CERAMIC COATING AND LITHIUM-ION BATTERY WITH ELECTRODE CERAMIC COATING

Resumen de: CN119744463A

The present invention provides an electrode having a ceramic coating comprising a ceramic powder and a binder, the electrode having a surface roughness Ra of 0.4 mu m to 1.6 mu m, preferably 0.6 mu m to 1.4 mu m, further preferably 0.8 mu m to 1.2 mu m. The invention further provides a lithium ion battery which comprises a positive electrode, a negative electrode, electrolyte and a shell, the positive electrode comprises a positive electrode current collector and a positive electrode active material coated on the positive electrode current collector, and the negative electrode comprises a negative electrode current collector and a negative electrode active material coated on the negative electrode current collector; wherein the positive electrode and the negative electrode are opposite to each other, at least one of the positive electrode and the negative electrode is the electrode with the ceramic coating, and the ceramic coating is located on at least one surface, opposite to each other, of the positive electrode and the negative electrode. The ceramic coating can replace a battery diaphragm in the general sense, and can improve the cycle life and thermal stability of the lithium ion battery.

BATTERY UNIT STRUCTURE AND VEHICLE COMPRISING SAME

Resumen de: EP4576378A1

The present disclosure discloses a battery unit structure in which a venting area expands due to rupture caused by increased internal pressure even if an existing venting hole is clogged, thereby discharging gas and preventing ejection of materials and flames.A battery unit structure according to an aspect of the present disclosure may include: a battery cell; a battery housing having an accommodation space configured to accommodate the battery cell therein and including a venting portion configured to discharge gas generated from the battery cell on at least one side thereof; and a battery cover configured to cover the battery cell, wherein the venting portion may include: a discharge portion including a venting hole configured to discharge the gas and a rupture portion configured to rupture if internal pressure of the accommodation space reaches a predetermined pressure or more; and a mesh portion positioned to face the accommodation space with the discharge portion therebetween.

POLYMER, ELECTRODE SHEET, AND RELATED BATTERY CELL, BATTERY AND ELECTRIC APPARATUS

Resumen de: EP4576265A1

Provided in the present application are a polymer, an electrode sheet, and a related battery cell, a battery and an electric apparatus. The polymer comprises an ester polymer, and is applied to a battery cell. The polymer comprises the ester polymer, wherein the ester polymer is made into a sheet-shaped structure, which is subjected to a dynamic frequency scanning test at the temperature of (Tm+20)°C to obtain an elastic modulus G'-loss modulus G" curve, the slope of the elastic modulus G'-loss modulus G" curve being K, 1 < K < ∞, and Tm ° C representing the melting temperature of the ester polymer. The present application can improve the cycle performance and storage performance of a battery cell.

CONTROL METHOD FOR BATTERY HEATING SYSTEM, AND BATTERY HEATING SYSTEM AND ELECTRIC VEHICLE

Resumen de: EP4576335A1

Provided are a control method for a battery heating system, a battery heating system, and an electric vehicle. The battery heating system includes a supercapacitor and a pulse control unit. The control method includes: obtaining a temperature value and an SOC value of a power battery; and issuing a heating instruction to the pulse control unit when the temperature value is lower than a predetermined temperature threshold and the SOC value is higher than a predetermined charge threshold, to allow the pulse control unit to control, based on the heating instruction, bi-directional energy flow between the power battery and the supercapacitor by means of a pulse current, to heat the power battery.

BMS GROUND ASSEMBLY

Resumen de: EP4576957A1

The present invention relates to a battery management system (BMS) including: a circuit board in which a first coupling hole for grounding is defined; a first casing mold that accommodates the circuit board, and includes a bushing part disposed inside a second coupling hole recessed from the outside; and a coupling unit that passes through the first coupling hole and the second coupling hole, and allows the circuit board and the bushing part to be in contact with each other while pressing a top surface of the bushing part, wherein the bushing part includes: a vertical part provided in a direction parallel to the second coupling hole; and a horizontal part extending from an end of the vertical part in a direction perpendicular to a direction in which the vertical part is provided, wherein the coupling unit is electrically connected to a case, in which a plurality of batteries are accommodated, to ground the circuit board.

BATTERY HEATING DEVICE AND OPERATING METHOD THEREFOR

Resumen de: EP4576337A1

A battery heating apparatus according to an embodiment disclosed herein includes a state-of-charge calculating unit configured to calculate a state of charge (SoC) of a battery, a sensor unit configured to measure a voltage, a current, or a temperature of the battery, a controller configured to determine a charge power of the battery based on the state of charge of the battery and a maximum charge power of a charger to charge the battery, and determine whether to heat the battery based on the measured temperature and the charge power, and a heating unit configured to heat the battery when determining to heat the battery.

ELECTROCHEMICAL DEVICE AND ELECTRIC APPARATUS

Resumen de: EP4576298A1

This application provides an electrochemical device and an electric device. The electrochemical device includes a housing and a wound electrode assembly; where the electrode assembly is accommodated in the housing, the electrode assembly has a winding centerline, the electrode assembly includes a positive electrode plate and a negative electrode plate, and along a winding direction of the positive electrode plate, a positive electrode active material layer of the positive electrode plate has a positive electrode winding starting end and a positive electrode winding ending end. A straight line passing through the positive electrode winding ending end and orthogonal to the winding centerline is defined as a first reference line, a straight line orthogonal to the first reference line and orthogonal to the winding centerline is defined as a second reference line, and a straight line passing through the positive electrode winding starting end and orthogonal to the winding centerline is defined as a third reference line, where a zero or acute angle α exists between the third reference line and the second reference line, satisfying 0°≤α≤30°, which can inhibit the collapse of the electrode plate in an inner winding circle caused by the swelling of the electrode assembly, thereby improving the service life of the electrochemical device.

NEGATIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRONIC DEVICE

Resumen de: EP4576239A1

A negative electrode plate includes a negative electrode active material, and the negative electrode active material includes first particles with pores and second particles other than the first particles, where within a 200 µm × 200 µm region of a cross-section of the negative electrode active material layer, the first particles satisfy: 0.10 ≤ a/b ≤ 0.85 and 0.89 ≤ 0.98 × C - (a/b)<2> ≤ 1.86, where a µm represents an average maximum Feret diameter of the pores in the first particles; b µm represents an average maximum Feret diameter of the first particles; and C g/cm<3> represents a compacted density of the negative electrode active material, where 1.65 ≤ C ≤ 1.95. The negative electrode plate provided in this application has both a high compacted density and a high porosity.

APPARATUS AND METHOD FOR CHARGING BATTERY

Resumen de: EP4576491A1

A battery charging apparatus according to an embodiment of the present disclosure includes a current output unit configured to output a charging current to a battery during a preset charging time; a voltage measurement unit configured to measure a voltage of the battery; and a control unit configured to calculate a voltage change amount of the battery during the charging time, calculate a delay time according to the difference between the charging time and a criterion time preset to correspond to the voltage change amount, and set a charging condition corresponding to the battery based on the calculated delay time.

METHOD OF REMOVING ONE-SIDED ELECTRODE LAYER FROM DOUBLE-COATED ELECTRODE

Resumen de: EP4576325A1

The present disclosure provides a method for removing one-sided electrode layer from a double-sided electrode, the method comprising: interposing a double-sided electrode between an upper plate and a lower plate, wherein the upper plate has a structure in which an opening part communicating between upper and lower sides is formed, and the lower plate has a structure in which one side is opened and the other side is formed with a hermetically sealed depression part, and placing a plate assembly having a structure in which the upper plate and the lower plate are coupled to each other with the double-sided electrodes being interposed therebetween, in an NMP (N-methyl-2-pyrrolidone) water bath and applying ultrasonic waves.

BATTERY COVER PLATE, BATTERY, BATTERY PACK AND ENERGY STORAGE SYSTEM

Resumen de: EP4576376A1

This application discloses a battery cover plate, a battery, a battery pack, and an energy storage system, to monitor a turned-on state of an explosion-proof valve of the battery. The battery cover plate includes a cover plate body, a first electrode assembly, and the explosion-proof valve, and a first through hole is provided on the cover plate body. The first electrode assembly includes a first insulating member and a first conductive sheet, the first insulating member is disposed on a first side of the cover plate body and covers the first through hole, a second through hole and a slot are provided on the first insulating member, a position of the second through hole is opposite to a position of the first through hole, one end of the slot communicates with the first through hole, and the other end extends to a side wall of the first insulating member and communicates with an exterior. The first conductive sheet is disposed on a side that is of the first insulating member and that faces away from the cover plate body. The explosion-proof valve is disposed on a surface on one side of the cover plate body and covers the first through hole, a notch is provided on the explosion-proof valve, the notch defines, on the explosion-proof valve, a flippable part in an open ring shape, and the flippable part is configured to: be flipped along the notch when subjected to force, and be in contact with the first conductive sheet after flipping.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4576395A1

The present application relates to the field of batteries. Provided are a battery cell, a battery, and an electric device. The battery cell comprises a housing, an electrode assembly, and an electrode terminal, wherein the housing has a wall portion, which is provided with a lead-out hole; the electrode assembly is accommodated in the housing; the electrode terminal comprises a first terminal portion and a second terminal portion, which are made of different materials and are compounded with each other; the first terminal portion passes through the lead-out hole, and the second terminal portion is electrically connected to the electrode assembly; the first terminal portion comprises a first limiting portion, and in the thickness direction of the wall portion, the first limiting portion is configured to limit the first terminal portion from being separated from the lead-out hole in a direction away from the electrode assembly; and when the first terminal portion is subjected to an outward pulling force, the first limiting portion can limit the electrode terminal from being separated from the lead-out hole. The compound interface between the first terminal portion and the second terminal portion is not easily affected by an external force, and the first terminal portion and the second terminal portion are not easily separated, such that the battery cell has a longer service life.

CASE AND CELL MODULE HAVING THE SAME

Resumen de: EP4576369A1

A case used for storing cells includes a housing (10) and an upper cover (20). The housing (10) is provided with an accommodation chamber (11), a maintenance opening (12) is formed at a top of the housing (10), and the maintenance opening (12) is in communication with the accommodation chamber (11). The accommodation chamber (11) is used for accommodating the cells, and the maintenance opening (12) is arranged corresponding to the cells. The upper cover (20) is detachably arranged on the housing (10) and is able to cover the maintenance opening (12).

BATTERY CELL AND BATTERY MODULE COMPRISING SAME

Resumen de: EP4576349A1

The present invention, in order to improve stability by directing a venting direction, provides a battery cell and a battery module comprising same, comprising: an electrode assembly; a case for accommodating the electrode assembly; an electrode terminal electrically connected to the electrode assembly; and a sealing portion to which an edge of the case is joined, wherein the sealing portion comprises a first sealing portion in which the electrode terminal is embedded and a second sealing portion in which the electrode terminal is not embedded, a folding portion is formed on at least a part of the second sealing portion, and a holding member coupled to the folding portion is included.

MANIFOLD

Resumen de: EP4575372A1

A manifold includes: a high-temperature channel through which a high-temperature fluid flows; a low-temperature channel through which a low-temperature fluid having a lower temperature than the high-temperature fluid flows; and a manifold body having the high-temperature channel and the low-temperature channel. The high-temperature channel and the low-temperature channel are disposed close to each other. The manifold body has a thermal insulation space between the high-temperature channel and the low-temperature channel in a location where the high-temperature channel and the low-temperature channel are disposed close to each other.

BATTERY MODULE, AND BATTERY PACK AND VEHICLE COMPRISING SAME

Resumen de: EP4576410A1

Disclosed is a battery module, which includes a cell stack including a plurality of battery cells provided with electrode leads; a bus bar frame assembly including a bus bar electrically connected to the electrode lead and a bus bar frame on which the bus bar is seated, and configured to cover one side of the cell stack; and a fire resistant cover assembly including a fire resistant cover configured to cover the bus bar frame assembly and a metal member coupled to at least one of the electrode lead and the bus bar.

CYLINDRICAL SECONDARY BATTERY COMPRISING TOP CAP

Resumen de: EP4576405A1

A cylindrical type secondary battery according to an embodiment of the present invention may include a cylindrical can provided to accommodate an electrode assembly, and a top cap provided to cover an opened upper portion of the cylindrical can. The top cap may include a first conductive part, a second conductive part disposed below the first conductive part and electrically connected to the electrode assembly, and an intermediate layer part including a third conductive part disposed between the first conductive part and the second conductive part to be in contact with each of the first conductive part and the second conductive part, wherein, when a temperature of the third conductive part is a predetermined temperature or higher, the third conductive part is melted so that the contact between the third conductive part and the first conductive part or the second conductive part is released. The intermediate layer part may include a gasket part that is disposed between the first conductive part and the second conductive part and defines a through-region between the gasket part and the third conductive part in a state in which the third conductive part is disposed to pass through the intermediate layer part.

BATTERY MODULE AND BATTERY PACK

Resumen de: EP4576323A1

A battery module includes: a housing (11), a cell (12), and a first detection unit (13). The housing defines a receiving space (101), a pressure relief port (102) communicated with the receiving space, and a first air inlet (103) communicated with the receiving space. A pressure relief mechanism (11a) is arranged in the pressure relief port, an air intaking mechanism (11b) is arranged in the first air inlet. The cell is received in the receiving space. The first detection unit is mounted on the housing and configured to detect a predetermined object. The first detection unit is electrically connected to the pressure relief mechanism. When the cell has thermal runaway, the pressure relief mechanism exposes the pressure relief port. When a pressure in the receiving space is less than or equal to a pressure threshold, the air intaking mechanism exposes the first air inlet.

FIRE EXTINGUISHING STRUCTURE OF BATTERY MODULE

Resumen de: EP4574218A1

A fire extinguishing structure of battery module (1) is disclosed and includes a housing (10), a battery pack (20), an airflow guiding channel (30, 31, 32), a fan (40, 40a) and an intumescent insulation layer (50, 51, 52, 53, 54). The accommodation space (13) is in communication between the inlet (11) and the outlet (12). The battery pack (20) is accommodated in the accommodation space. The airflow guiding channel is configured to guide an airflow (F) along an airflow direction from the inlet (11) to the outlet (12). The fan (40, 40a) is configured to generate the airflow (F) flowing to dissipate heat generated by the battery pack (20). The intumescent insulation layer (50, 51, 52, 53, 54) is arranged on a side wall of the airflow guiding channel (30, 31, 32), and configured to react and expand under a reaction temperature to seal the airflow guiding channel. An included angle (α) formed between a normal direction (N) of the intumescent insulation layer (50, 51, 52, 53, 54) and the airflow direction is not less than 90 degrees.

WORKPIECE SUPPORT

Nº publicación: EP4573331A1 25/06/2025

Solicitante:

ZELL SYSTEMTECHNIK GMBH [DE]
ZELL Systemtechnik GmbH

Resumen de: WO2024240672A1

The invention relates to a workpiece support in which a plurality of workpieces (1) can be arranged in multiple arrangements, said workpiece support comprising: - at least two longitudinal supports (19), - spring-loaded separating walls (13) which run between the two longitudinal supports (19) and which can be moved along the longitudinal supports (19), wherein at least one respective receiving region (7) for one or more workpieces (1) is defined between two adjacent separating walls (13), said receiving region being delimited laterally by adjacent longitudinal supports (19), and - a moving mechanism (15), by means of which the separating walls (13) can be moved against the spring force such that the workpieces (1) are held in the receiving regions (7) in a force-fitting manner by the adjacent separating walls (13).