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498
results.
Updated on
25/04/2026 [06:57:00]
Absstract of: EP4730458A1
0001 A battery control system comprises a sealed enclosure housing at least one electrochemical cell immersed in a dielectric liquid. Isostatic pressure is applied to the cell via the dielectric liquid by a pneumatic supply unit which injects a pressurised gas into the enclosure. A controller is configured to dynamically regulate the applied pressure in a closed-loop system based on the measured internal resistance of the cell, which serves as a direct indicator of the cell's state-of-health. Thermal management is provided by an internal heat exchanger that conditions the temperature of the contained dielectric liquid via an intermediate coolant circuit. A gas-liquid separation unit is fluidically coupled to a gas outlet to prevent liquid loss during pressure venting. The system extends the cycle life and enhances the safety and reliability of electrochemical cells.
Absstract of: EP4730470A1
0001 A lithium-ion secondary battery (10) is provided in the present disclosure, including a positive electrode (PE) with a first current collector (100) and a first active material (108), a negative electrode (NE), a separator (106) between the positive electrode (PE) and the negative electrode (NE), a field electrode (FE) at one side of the negative electrode (NE) opposite to the positive electrode (PE), and a first insulating layer (110) isolated between the negative electrode (NE) and the field electrode (FE).
Absstract of: EP4730485A1
0001 An energy storage system (100) includes a battery rack (120) having a plurality of battery packs (110), an air-conditioner (130) adjacent to the battery rack and configured to discharge air, and a duct (140) connected to the air-conditioner, the duct including a plurality of outlets (191) and a plurality of baffles (150), the plurality of baffles being arranged in a longitudinal direction of the duct within the duct and being configured to adjust an amount of air supplied to the plurality of outlets.
Absstract of: EP4730478A1
0001 A secondary battery and a battery module are disclosed. A secondary battery includes a case accommodating an electrode assembly; and a sensor, and the sensor includes a circuit on a surface of the case and configured to be shorted in response to a volume of the case reaching a certain volume or more; and a processor configured to determine a state of the secondary battery based on whether the circuit is shorted.
Absstract of: EP4729487A1
0001 The present invention relates to a positive electrode active material and a lithium secondary battery comprising the same, and more particularly, to a positive electrode active material comprising a overlithiated lithium manganese-based oxide, wherein a coating layer comprising a crystalline phase and an amorphous phase is formed on the surface of the lithium manganese-based oxide, thereby alleviating elution of transition metals from the lithium manganese-based oxide and suppressing side reactions on the surface of the lithium manganese-based oxide, and to a lithium secondary battery comprising the same.
Absstract of: EP4730412A1
An anode active material for a lithium secondary battery includes silicon oxide particles. A peak intensity in a crystalline region is in a range from 0.2 to 0.8 in a Raman spectrum of the silicon oxide particles obtained by a Raman spectroscopy analysis at a state of charge (SOC) of 0.1V. A lithium secondary battery including the anode active material, and a method of preparing the anode active material are also provided.
Absstract of: EP4730601A1
0001 An energy storage system includes a battery container including a master battery container and sub-battery containers electrically connected to each other, and a power conversion system, PCS, wherein the master battery container includes battery racks, a system battery management system, BMS, configured to monitor states of the battery racks and of battery racks included in the plurality of sub-battery containers, and configured to control operations thereof, a master programmable logic controller, PLC, configured to monitor a state of the master battery container, a first switch controlled by a switching control signal generated by the master PLC upon receiving a request from the system BMS, and a second switch controlled by a switching control signal of the system BMS, wherein the system BMS and the PLC are further configured to transmit or receive data through a contact method.
Absstract of: EP4730604A1
0001 The present disclosure relates to a protection circuit module and a battery assembly including the same. The protection circuit module may include a first substrate on which a first-first connection member connected to a first electrode terminal of a battery cell and a second connection member connected to a second electrode terminal of the battery cell are located, and a second substrate connected to the first substrate and on which a first-second connection member is located, wherein the second substrate may be electrically connected to the first-first connection member from among the first-first connection member and the second connection member.
Absstract of: EP4729904A1
The present invention provides a temperature and strain sensor, the sensor comprising two electrodes and a polymeric matrix comprising an ionic liquid separating the electrodes, wherein the electrodes and polymeric matrix are all co-planar. Methods of using the sensors and methods for their manufacture are also described.
Absstract of: EP4729338A1
0001 A system and method of controlling operation of a fuel cell vehicle comprising a fuel cell system comprising a fuel cell stack. The method comprises obtaining route data of a route for the vehicle that comprises at least one section of the route wherein switching from a hot operating mode to a normal operating mode can be performed; when a state of health (SoH) of the fuel cell stack is within a target SoH and the vehicle assumes the hot operating mode, controlling the vehicle to either assume the normal operating mode or remain operating in the hot operating mode during the section of the route, based on an expected degradation of the fuel cell stack due to switching between the hot and normal operating modes and an expected degradation of the fuel cell stack due to the vehicle remaining operating in the hot operating mode when passing the section of the route.
Absstract of: EP4730593A1
0001 Verfahren zum Steuern und Regeln eines Akkumulator, insbesondere als Energieversorgung für eine Werkzeugmaschine, enthaltend ein Akku-Gehäuse, eine Akku-Schnittstelle, eine Steuereinheit und eine Anzahl an Energiespeicherelementen, wobei die Steuereinheit wenigstens eine Erfassungseinrichtung zum Erfassen wenigstens eines Ladungswerts enthält. 0002 Akkumulator, insbesondere als Energieversorgung für eine Werkzeugmaschine, zur Durchführung des Verfahrens. 0003 System enthaltend einen Akkumulator und wenigstens eine Eingabevorrichtung zur Durchführung des Verfahrens.
Absstract of: EP4730491A1
A battery module includes a cell assembly including a plurality of battery cells and a thermal barrier disposed between at least some of the plurality of battery cells, a module case including a module cover covering the cell assembly, and a heat transfer blocking member disposed between the thermal barrier and the module cover. The thermal barrier includes a first surface and a second surface facing in opposite directions and restricts heat transfer between a first battery cell facing the first surface and a second battery cell facing the second surface, and the heat transfer blocking member includes a receiving groove into which an end of the thermal barrier is inserted.
Absstract of: EP4730411A1
An anode active material for a lithium secondary battery includes a silicon-based active material that includes silicon oxide particles and a carbon coating layer formed on at least a portion of a surface of the silicon oxide particles. A carbon crystallinity of the carbon coating layer is in a range from 0.3 to 0.9. A lithium secondary battery including the anode active material, and a method of preparing the anode active material are also provided.
Absstract of: EP4730471A1
A lithium-ion secondary battery (20) is provided in the present disclosure, including a positive electrode (PE) with a first current collector (100) and a first active material (108), a negative electrode (NE), a separator (106) between the positive electrode (PE) and the negative electrode (NE), a field electrode (FE) at one side of the positive electrode (PE) opposite to the negative electrode (NE), and a first insulating layer (110) isolated between the positive electrode (PE) and the field electrode (FE).
Absstract of: EP4729960A1
A method of operating an electronic device including a battery pack that includes a first battery cell and a second battery cell connected in parallel, includes calculating a first discharge relative state of charge (RSOC) value for the first battery cell, based on a state of charge (SOC) value of the first battery cell that is calculated based on one or more of a voltage or a current of the first battery cell, calculating a second discharge RSOC value for the second battery cell, based on a SOC value of the second battery cell that is calculated based on one or more of a voltage or a current of the second battery cell, and calculating integrated SOC data for the battery pack based on the first discharge RSOC value and the second discharge RSOC value.
Absstract of: EP4730505A1
0001 An explosion-proof panel (100) includes a support portion (110) fixed to a container portion (12), the container portion accommodating one or more battery modules, a cover portion (120) parallel to the support portion (110), and a length-adjusting portion (130) configured to adjust a separation distance between the support portion (110) and the cover portion (120), wherein the cover portion (120) is movable in a first direction D1 according to an internal pressure of the container portion, the separation distance being adjustable.
Absstract of: EP4730511A1
0001 Present disclosure relates to a space compensating system for a battery unit comprising one or more cell arrays and a housing, the one or more cell arrays being arranged in said housing, the space compensating system comprising a plate arranged on a first cell array of the one or more cell arrays, and one or more adjustable elements configured to be adjustably mounted to the housing of the battery unit, wherein the one or more adjustable elements each has an end portion adapted to adjustably engage the plate for adjusting a pressure exerted by the plate onto the cell array for clamping the one or more cell arrays against the housing.
Absstract of: EP4729485A1
0001 A method for manufacturing a precursor for cathode active material for lithium-ion batteries, the precursor comprising particles, presented by a general formula Ni
Absstract of: EP4730417A1
The present disclosure provides an electrode active material composite particle and a method for manufacturing the electrode active material composite particle that can suppress a change in volume of a battery, an electrode mixture including such an electrode active material composite particle, and a battery containing such an electrode mixture. An electrode active material composite particle according to the present disclosure includes a particulate electrode active material and a non-fibrous filler. In the electrode active material composite particle according to the present disclosure, the particulate electrode active material includes an alloy-based electrode active material, the non-fibrous filler constitutes one or a plurality of aggregates, and the one or plurality of aggregates and the particulate electrode active material constitute a composite particle.
Absstract of: EP4729146A2
An apparatus for manufacturing a film for an electrode may include a feeder (110) configured to transport mixed powder, a guide chute (120) including a filter portion (150) configured to pass small particles (B) and leave large particles (A) among the powder falling from the feeder (110), and a guide portion (130) that guides the large particles in a given direction, and a rolling roll (140) configured to roll the powder delivered through the guide portion (130).
Absstract of: EP4729263A2
An extruder (10) includes: a supply module (100); a mixing module (200) to form an electrode slurry (30) by mixing an active material, a binder, and a conductive material from the supply module (100); a discharge module (300) to discharge the electrode slurry (30); and a sensor (250) to measure a characteristic value of the electrode slurry (30). The mixing module (200) includes a first screw (211) and a second screw (212), the first screw (211) and the second screw (212) including screw threads (211b, 212b) on an outer circumference thereof to rotate to engage with each other; a barrel (220) including a first barrel (220_1) and a second barrel (220_2) accommodating the first screw (211) and the second screw (212), respectively, and facing each other to form a hole through which the electrode slurry (30) is transmitted; a first gap adjustment module (240) to adjust a gap between the first barrel (220_1) and the second barrel (220_2); and a control module (500) to control the first gap adjustment module (240) based on the measured characteristic value.
Absstract of: EP4730383A1
A battery disconnect device includes a housing (210) having an open end face and a mounting part. The mounting part includes a mounting body (231) accommodating an element component (5) therein and configured to be detachably connected to the housing and a thermal conductor (235) on an inner surface of the mounting body and in contact with the element component.
Absstract of: EP4730457A1
The present disclosure relates to an electrode assembly and a battery cell including the same, the electrode assembly comprising: a first electrode plate on which any one active material is stacked, a first electrode including a plurality of first flags respectively extending from the first electrode plate, a second electrode including a second electrode plate on which the other active material is stacked, and a separator disposed between the first electrode and the second electrode, wherein the first electrode, the separator, and the second electrode are wound around a virtual central axis, wherein the plurality of first flags respectively extend parallel to the central axis, and wherein an angle between any one of the first flags among the plurality of first flags and another first flag adjacent to the any one of the first flags increases as approaching the central axis along a spiral direction.
Absstract of: EP4729893A1
0001 A powder dispensing apparatus having an elongate wedge-shaped hopper including one or more fluidized plates is described. The powder dispensing apparatus can be positioned above a pair of calender rolls to distribute a powder, such as a dry electrode material onto the calender rolls. Such a fluidized wedge-shaped hopper advantageously allows for an accurate and/or controlled rate of powder distribution across or substantially across the length of a calender roll.
Nº publicación: EP4729227A1 22/04/2026
Applicant:
SAMSUNG SDI CO LTD [KR]
Absstract of: EP4729227A1
0001 A laser notching apparatus of the present disclosure includes a supporting member for supporting an electrode plate; and a laser irradiating member above the supporting member and which irradiates a laser to the electrode plate at a set angle to cut the electrode plate.
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