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LITHIUM SILICON OXIDE, ANODE COMPRISING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING ANODE

Resumen de: EP4708397A1

The present invention relates to: a lithium silicon oxide in which gas generation is suppressed during application to an aqueous slurry; an anode comprising same; and a lithium secondary battery comprising the anode, and provides a lithium silicon oxide satisfying equation 1, an anode comprising same, and a lithium secondary battery comprising the anode.

POSITIVE ELECTRODE ACTIVE MATERIAL, AND POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY EACH COMPRISING SAME

Resumen de: EP4708399A1

The present invention relates to a positive electrode active material, and a positive electrode and a lithium secondary battery which include the same, and more particularly, to a positive electrode active material including a lithium composite transition metal oxide in the form of a single particle, wherein the lithium composite transition metal oxide satisfies Equation 1 described herein, and a positive electrode and a lithium secondary battery which include the same.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4708530A1

The present application provides a battery cell, a battery and an electrical device. The battery cell includes a shell and a pressure relief component; the shell includes a first wall portion; the pressure relief component is arranged on the first wall portion, and includes a first surface and a second surface which are oppositely arranged in the thickness direction of the first wall portion; the pressure relief component is provided with a first groove which is recessed from the first surface toward the second surface, the first groove defines at least one predetermined pressure relief region, and the pressure relief component is configured to be capable of rupturing along at least part of the first groove when the battery cell is subjected to pressure relief; and the width of the first wall portion is W, the sum of the areas of all predetermined pressure relief regions is S, and W and S meet: 10mm≤W≤100mm, 300mm<2>≤S≤1500mm<2>, which is conducive to prolonging the service life of the battery cell and improving the operational reliability of the battery cell.

BATTERY CELL DETECTION SYSTEM AND DETECTION METHOD THEREOF

Resumen de: EP4708446A1

The present disclosure provides a battery cell detection system and a detection method thereof. The battery cell detection system includes: a conveying device (1) used to convey a battery cell to a gripping station; a first transfer device (2) disposed opposite to the conveying device (1) in a vertical direction, where the first transfer device (2) includes a first gripping mechanism (21) and a first moving mechanism (22) connected to each other, the first gripping mechanism (21) is used to grip the battery cell, and the first moving mechanism (22) is used to transfer the battery cell from the gripping station to a detection station and configured to move a portion to be detected of the battery cell to a predetermined position; and a detection device (3) disposed at the detection station, where the detection device (3) is used to detect the portion to be detected of the battery cell.

BATTERY PACK AND ENERGY STORAGE SYSTEM INCLUDING SAME

Resumen de: EP4708497A2

Disclosed are a battery pack configured to guide venting gas to be discharged in a desired direction when a thermal event occurs, and an energy storage system including the same.A battery pack according to one aspect of the present disclosure includes a cell assembly, a pack frame accommodating the cell assembly therein, and a venting guidance portion coupled to the pack frame and configured to cause an outlet, through which venting gas emitted from the cell assembly is discharged to the outside of the pack frame, to be formed at a coupling portion with the pack frame, which is at least partially weakened as the internal pressure of the pack frame increases due to the venting gas.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4707243A2

The present disclosure relates to a method of manufacturing a positive electrode active material for nonaqueous electrolyte secondary batteries that comprises a lithium transition metal composite oxide containing at least 80 mol% Ni with reference to the total number of moles of metal elements excluding Li, and that has B present on the particle surface of at least this composite oxide. Assuming that a particle having a particle diameter larger than the 70% volume-based particle diameter (D70) is denoted as a first particle and a particle having a particle diameter smaller than the 30% volume-based particle diameter (D30) is denoted as a second particle, the mole fraction of B, with reference to the total number of moles of metal elements excluding Li, in the first particle is larger than the mole fraction of B, with reference to the total number of moles of metal elements excluding Li, in the second particle.

CURRENT COLLECTING COMPONENT, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4708549A2

Embodiments of this application provide a battery cell (20), a battery (100), and an electric device, pertaining to the field of battery technologies. The battery cell (20) has a current collecting component (24) and two output poles with opposite polarities for outputting electrical energy. The current collecting component (24) includes two current collectors (241), an insulator (242), and a limiting structure (243). The two current collectors (241) are arranged opposite each other along a width direction of the current collecting component (24) and are configured to connect to the two output poles respectively. The insulator (242) is configured to connect the two current collectors (241) and is located at least partially between the two current collectors (241) in the width direction to insulate the two current collectors (241) from each other. The limiting structure (243) is configured to restrict the current collectors (241) from leaving the insulator (242) in the width direction. The two current collectors (241) in the current collecting component are connected by the insulator (242), and the two current collectors (241) are insulated from each other by the insulator (242). The limiting structure (243) restricts the current collecting component (24) from leaving the insulator (242) in the width direction of the current collecting component (24), so that the two current collectors (241) are not easily separated from the insulator, reducing the risk of the two current coll

SECONDARY BATTERY

Resumen de: EP4707795A2

The present invention relates to a secondary battery. The secondary battery according to the present invention comprises an electrode assembly wherein electrodes and separators are alternatingly stacked, and a battery case in which the electrode assembly is accommodated, where the battery case comprises a first gas pocket on which a first collection space for collecting gases in the battery case is formed, and on which is provided a first exhaust port from which gases in the first collection space are exhausted, and a second gas pocket on which a second collection space for collecting gases exhausted from the first exhaust port is formed, and on which is provided a second exhaust port for outward exhaust of gas in the second collection space.

BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: EP4708508A1

Disclosed is a battery pack and a vehicle including the same. The battery pack includes a plurality of battery cells; a pack case configured to accommodate the plurality of battery cells, so that at least a portion of the pack case is separated; a reinforcing member inserted into the separated portion of the pack case; and a connection member configured to connect the pack case and the reinforcing member.

POUCH TYPE BATTERY CELL AND VEHICLE INCLUDING SAME

Resumen de: EP4708546A1

Disclosed are a pouch-type battery cell which is thick and thus has improved durability and stability while maintaining the formability and insulation performance of a pouch and a vehicle including the same. The battery cell includes an electrode assembly formed by overlapping a plurality of electrodes, a packaging material folded to wrap around the electrode assembly to form a rectangular pouch, a sealing part formed by overlapping and contacting edges of the folded packaging material in which the electrode assembly is wrapped, and a pair of leads whose ends are connected to the plurality of electrodes inside the packaging material and whose other ends are exposed to the outside of the packaging material. The pair of leads are exposed in the same direction.

ELECTROLYTE ADDITIVE, ELECTROLYTE AND BATTERY

Resumen de: EP4708441A1

Provided are an electrolyte additive, an electrolyte, and a battery. The electrolyte additive includes a first additive, a second additive, and a third additive. The first additive includes a compound represented by formula 1:where: R₁ is selected from C atom or O atom; R₂ is selected fromR₃ is selected from methylene,R₄ is selected fromand at least one of R₂, R₃, and R₄ contain sulfur atom. The second additive includes at least one of a compound represented by formula 2 or a compound represented by formula 3:where X includes P atom or B atom. The third additive includes a compound represented by formula 4: R-N=C=O formula 4, where R includes at least one of alkyl, O=C=N-substituted alkyl, cycloalkyl, O=C=N-substituted cycloalkyl, aryl, or O=C=N-substituted aryl. In this way, a stable and low-impedance interface film may be formed on an electrode surface, reducing impedance and gas production of the battery, and improving cycle performance of the battery.

BATTERY MODULE, BATTERY PACK, AND VEHICLE

Resumen de: EP4708535A1

Disclosed are a battery module, a battery pack, and a vehicle. A battery module according to an embodiment of the present disclosure may include: a plurality of battery cells; a module case in which the plurality of battery cells are stored; and a flame propagation prevention member disposed between the plurality of battery cells inside the module case, and the flame propagation prevention member may be configured to change its shape when a thermal event occurs so as to block a gap formed between the module case and the battery cells.

BATTERY MODULE, BATTERY PACK AND VEHICLE

Resumen de: EP4708465A1

Disclosed are a battery module, a battery pack, and a vehicle. The battery module includes a plurality of battery cells; a module case in which the plurality of battery cells are accommodated; and a flame suppression pad disposed between the plurality of battery cells inside the module case, and the flame suppression pad is coated with an insulating member or contains an insulating member therein.

ELECTRODE PLATE, SECONDARY BATTERY, AND ELECTRONIC DEVICE

Resumen de: EP4708406A2

A first metal layer (11) is provided with a plurality of first pores, a second metal layer (12) is provided with a plurality of second pores, an insulation layer (13) is provided with a plurality of second pores, and the first pores, the second pores, and the third pores being configured to transmit ions. The electrode plate (10) includes a first tab (17) and a first insulation adhesive (17a), where a first portion of the first tab (17) is connected to the first metal layer (11), along the thickness direction of the electrode plate (10), a projection of a third portion is located outside a projection of the first metal layer (11), and the first insulation adhesive (17a) is disposed on the surface of the third portion and that faces the second metal layer (12), and the first insulation adhesive (17a) is connected to the first metal layer (11). A first active material layer (14) is disposed on a surface of the first metal layer (11) and facing away from the insulation layer (13), and a second active material layer (15) is disposed on a surface of the second metal layer (12) and facing away from the insulation layer (13), where the first active material layer (14) and the second active material layer (15) are of opposite polarities.

BATTERY CASE AND MULTI-LAYER BATTERY SYSTEM

Resumen de: EP4708512A1

Provided are a battery box and a multilayer battery system. The multilayer battery system includes a battery box, a conductive assembly, and multiple cell assemblies (20). The battery box includes a bottom guard plate (11), a box cover (13), and a box body connected to the bottom guard plate (11) and the box cover (13). The box body includes at least two splicing boxes (12) that are stacked. For each splicing box (12), the upper end and the lower end of the splicing box (12) are each provided with an opening. The cell assemblies (20) are stacked. Each splicing box (12) accommodates a cell assembly (20). The conductive assembly is disposed in the battery box and configured to be electrically connected to the cell assemblies (20).

ELECTROLYTE, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC APPARATUS

Resumen de: EP4708404A2

An electrolyte includes lithium bis(fluorosulfonyl)imide, a sulfur-containing compound, and propyl propionate. Based on a mass of the electrolyte, a mass percentage of lithium bis(fluorosulfonyl)imide is A%, a mass percentage of the sulfur-containing compound is B%, and a mass percentage of propyl propionate is D%, where 0.3 ≤ B/A ≤ 4, and 30 ≤ D ≤ 40. With the above configuration, the risk of increased alternating current impedance of the electrochemical apparatus under high voltage can be reduced, and the drop resistance and intermittent cycling performance of the electrochemical apparatus can be improved.

ADDITIVE COMPOSITION, ELECTROLYTE COMPRISING SAME, AND BATTERY

Resumen de: EP4708439A1

The present application provides an additive composition, as well as an electrolytic solution and a battery thereof, wherein the additive composition comprises a first additive and a second additive; the first additive comprises a compound having a structure represented by formula 1, and the second additive comprises a silane additive. The additive composition provided by the present application is able to improve the cycling performance and high-temperature performance of the battery when used in an electrolytic solution.

ALL-SOLID-STATE BATTERY

Resumen de: EP4708435A1

An all-solid-state battery including a battery body including a negative electrode layer, a positive electrode layer, and a solid electrolyte layer between the negative electrode layer and the positive electrode layer; a case accommodating the battery body; and a fire-extinguishing agent inside the case, wherein the fire-extinguishing agent is configured to produce a solid aerosol.

NEGATIVE ELECTRODE FOR ALL-SOLID-STATE BATTERY, ALL-SOLID-STATE BATTERY, AND METHOD OF FABRICATING THE SAME

Resumen de: EP4708381A2

Disclosed are negative electrodes, all-solid-state batteries, and fabrication methods thereof. The all-solid-state battery includes a positive electrode layer, a negative electrode layer including a negative electrode current collector, and a negative electrode coating layer on the negative electrode current collector, and a solid electrolyte layer between the positive electrode layer and the negative electrode layer. The negative electrode layer includes lithiophilic metal, carbon, an additive, and a porous polymer composite. The porous polymer composite has a particulate shape. The additive includes a binder. An amount of the porous polymer composite in the negative electrode coating layer is greater than the amount of the additive in the negative electrode coating layer.

BATTERY, ELECTRIC DEVICE, AND METHOD FOR MANUFACTURING BATTERY

Resumen de: EP4708534A2

Embodiments of the present application provide a battery, a power consumption apparatus, and a method and an apparatus for preparing a battery. The battery includes a plurality of battery cells arranged in a first direction, where the battery cell is provided with a pressure relief mechanism, configured to be actuated when internal pressure or temperature of the battery cell reaches a threshold value, to relieve the internal pressure; and a protecting plate, where the protecting plate is attached to a surface of the battery cell provided with the pressure relief mechanism to protect the battery cell, the protecting plate is provided with a plurality of openings, and an opening is provided corresponding to the pressure relief mechanism to expose the pressure relief mechanism via the opening, and two openings corresponding to the pressure relief mechanisms of two adjacent battery cells are provided in a staggered manner in the first direction. The battery, the power consumption apparatus, the method and the apparatus for producing the battery of the present application can enhance safety performance of the battery.

BUS VOLTAGE MODULATION METHOD FOR DYNAMICALLY RECONFIGURABLE SERIES-CONNECTED BATTERY SYSTEM

Resumen de: EP4708621A1

The present disclosure discloses a bus voltage modulation method for a series dynamic reconfiguration battery system, and belongs to the technical field of energy storage for new energy power systems, comprising: numbering all battery modules as i, collecting a voltage value of each battery module, and arranging in a descending order according to magnitudes of the voltage values; selecting a battery module corresponding to the highest voltage value; determining whether the serial number i of the selected battery module is less than a total number N of series battery modules, if a determination result is YES, accumulating voltage values corresponding to the selected battery modules, and determining whether a voltage accumulation value of the battery modules is within a preset range; and performing an i++ operation according to the voltage accumulation value of the battery modules, and repeating the above content until an output bus voltage meets requirements for the preset range. A dynamic reconfiguration battery system based on a software-defined technology of the present disclosure can reconstruct and output a desired power bus voltage according to voltages of respective battery modules in real time to meet the requirements for the output power bus voltage.

COMPOSITE SODIUM IRON SULFATE POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET OF SODIUM-ION BATTERY, AND SODIUM-ION BATTERY

Resumen de: EP4708392A1

The present invention provides a composite sodium iron sulfate positive electrode material and a preparation method thereof, a sodium-ion battery positive electrode plate, and a sodium-ion battery, relating to the technical field of batteries. In the preparation method of the composite sodium iron sulfate positive electrode material provided by the present invention, the conductivity of the conductive agent can be improved by doping boron during the preparation process of the conductive agent, reducing the amount of conductive agent; adding the conductive agent during the preparation process of the positive electrode materials can improve the dispersion uniformity of the conductive agent; and high-temperature sintering can enable the contact between the conductive agent and the active material to be more reliable, and the dry-process electrode plate prepared using the material has a lower resistance value of electrode plate.

AUTOMATIC SPINDLE ADJUSTMENT APPARATUS

Resumen de: EP4706846A1

An automatic spindle adjustment apparatus includes a base frame, a spindle adjuster on the base frame, the spindle adjuster being configured to adjust an upper spindle mover to set a moving range of an upper spindle corresponding to a target occlusal thickness of a battery cell, a vertical mover on the base frame, the vertical mover being configured to move the spindle adjuster in an up-and-down direction, and a horizontal mover on the vertical mover, the horizontal mover being coupled to the spindle adjuster and configured to move the spindle adjuster in a forward-backward direction.

BATTERY MANAGEMENT APPARATUS AND METHOD OF CONTROLLING CHARGING/DISCHARGING USING THE SAME

Resumen de: EP4708618A1

A battery management apparatus includes a measuring unit including at least one sensor, the measuring unit configured to measure a cell voltage of each of a plurality of battery cells in a battery module, and a processor configured to adjust a charging threshold voltage or a discharging threshold voltage based on a difference in cell voltage between the plurality of battery cells and a current state of charge (SOC) of the battery module if charging or discharging the battery module.

POSITIVE ELECTRODE ACTIVE MATERIALS, POSITIVE ELECTRODES, AND RECHARGEABLE LITHIUM BATTERIES

Nº publicación: EP4708379A1 11/03/2026

Solicitante:

SAMSUNG SDI CO LTD [KR]
Samsung SDI Co., Ltd

Resumen de: EP4708379A1

A positive electrode active material is provide, the positive electrode active material including a first positive electrode active material including a lithium iron phosphate-based compound; and a second positive electrode active material including lithium nickel-based composite oxide; wherein the second positive electrode active material is included in an amount of ≥ 1 wt% to ≤ 15 wt% based on 100 wt% of the first positive electrode active material and second positive electrode active material. The positive electrode active material, the positive electrode including the same, and the rechargeable lithium battery according to some example embodiments may achieve high capacity and excellent or suitable stability.