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DIE COATER

Resumen de: EP4763356A1

Embodiments provide a die coater. The die coater includes a first die with a manifold and a shim coupled to the first die, in which the shim includes a body extending in a first direction and a spacer shim extending in a second direction perpendicular to the first direction and dividing the manifold, the spacer shim defines an insulation flow path configured to discharge insulating slurry, the insulation flow path includes an inlet, a first insulation flow path connected to the inlet, a buffer connected to the first insulation flow path, and a second insulation flow path connected to the buffer, and a width of the second insulation flow path and a width of the buffer are different from each other.

BATTERY MODULE, AND BATTERY PACK AND VEHICLE COMPRISING SAME

Resumen de: EP4765428A1

0001 The present disclosure relates to a battery module stored in a pack case, and the battery module may include: a plurality of battery cells; and a module case configured to store the plurality of battery cells in an inner space and having a protrusion protruding outward toward an inner surface of the pack case.

SIMULATION SYSTEM AND OPERATION METHOD OF SIMULATION SYSTEM

Resumen de: EP4765074A1

0001 According to some embodiments, a simulation system includes an interface panel configured to receive manipulation inputs from an operator; a main simulator configured to load training contents that reproduces processes for manufacturing a cylindrical battery through electrode etching based on the manipulation inputs and provide the training contents to the operator through interaction with the operator; and a display configured to display detailed images of the processes based on characteristics of the training contents.

APPARATUS FOR PROCESSING POUCH-TYPE BATTERY CELL CASE AND PROCESSING METHOD USING SAME

Resumen de: EP4763483A1

Disclosed are a pouch-shaped battery cell case machining apparatus and a machining method using the same, and more particularly a pouch-shaped battery cell case machining apparatus including a die unit configured to allow a battery cell case including a pocket portion and an extension portion provided outside the pocket portion to be seated on the die unit, a gripping unit configured to transfer the extension portion of the battery cell case to one side while gripping the extension portion, and a cutting unit located between the die unit and the gripping unit, the cutting unit being configured to cut a part of the extension portion of the battery cell case that is being transferred, wherein the die unit is a conveyor configured to continuously move toward one side, and a machining method using the same.

SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME

Resumen de: EP4765464A1

The present invention relates to a secondary battery and a method for manufacturing the same, The secondary battery according to an aspect of the present invention may comprise a cap comprising a first surface, a second surface perpendicular to or inclined to the first surface, and a corner connecting the first surface to the second surface; an electrode assembly, one side of which is covered by the cap; and an exterior film comprising a sheet-shaped accommodation part surrounding the electrode assembly in a circumferential direction, first and second extension parts extending respectively from one edge and the other edge of the accommodation part, and a coupling part coupling the first and second extension parts to each other. The coupling part may be disposed correspondingly to the corner.

BATTERY PACK AND VEHICLE COMPRISING SAME

Resumen de: EP4765422A1

0001 The present disclosure relates to a battery pack including: a plurality of battery cells; and a pack case configured to store the plurality of battery cells, and having a first venting channel formed corresponding to at least some of the plurality of battery cells and configured to be recessed inward from its inner surface such that venting gas generated from the battery cell flows thereinto.

BATTERY MODULE, AND BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: EP4765421A1

Disclosed is a battery module, which includes a cell assembly having a plurality of battery cells; a module case configured to accommodate the cell assembly and having a gas venting hole provided at one side to allow gas generated from the battery cell to be discharged to the outside; a module terminal electrically connected to the cell assembly and exposed to the other side of the module case; a fireproof cover member configured to cover a top end of the cell assembly to suppress upward discharge of the gas from the battery cell; and a block member configured to partition a space between the cell assembly and one side of the module case to guide the gas toward the gas venting hole.

ELECTRODE MIXTURE FILM, MANUFACTURING METHOD THEREFOR, ELECTRODE COMPRISING SAME, AND SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4765222A1

0001 The disclosure discloses an electrode mixture film including an electrode active material, and a binder having a three-dimensional fiber network structure, wherein the electrode mixture film has an average value of shear strength of 15 N/mm<2> or greater, a ratio of shear strength in a TD direction to shear strength in an MD direction 0.92 to 1.08, and a standard deviation of shear strength of 0.49 or less, and the shear strength is measured by means of a surface and interfacial characteristics analysis system (SAICAS) at two or more points spaced apart at regular intervals with respect to a depth direction of the electrode mixture film. The electrode mixture film includes a binder, a three-dimensional network structure of which is not only structurally stably, but also firmly and uniformly formed within the film, so that an electrode including the same may have excellent mechanical properties and excellent resistance properties, and a secondary battery including the same may have improved output and lifespan as well as excellent durability.

BATTERY MANAGEMENT APPARATUS AND BATTERY MANAGEMENT METHOD

Resumen de: EP4764563A1

A battery management apparatus includes an interface configured to acquire battery data of a management target battery measured at multiple degradation points, and a controller. The controller is configured to: generate a first state of charge-open circuit voltage (SOC-OCV) profile at a beginning-of-life (BOL) point and voltage-capacity profiles of the management target battery at the multiple degradation points, based on the battery data; identify a boundary voltage that distinguishes an upper voltage degradation characteristic with an upper capacity degradation rate and a lower voltage degradation characteristic with a lower capacity degradation rate, based on the voltage-capacity profiles; and estimating a second SOC-OCV profile at a middle-of-life (MOL) point, based on the upper capacity degradation rate, the lower capacity degradation rate, and the first SOC-OCV profile.

APPARATUS AND METHOD FOR GENERATING BATTERY PROFILE

Resumen de: EP4764564A1

0001 The battery profile generating apparatus according to an embodiment of the present disclosure includes a profile obtaining unit configured to obtain a battery profile representing a corresponding relationship between a capacity and a voltage of a battery in a charging and discharging process and a current profile representing a time-dependent current change; and a control unit configured to set a reference value based on a plurality of current values included in the current profile, set a target current section among an entire current section included in the current profile based on the reference value, and filter the battery profile based on the time-dependent current change included in the target current section.

LITHIUM SECONDARY BATTERY

Resumen de: EP4765226A1

Provided is a lithium secondary battery including a positive electrode; a negative electrode; a separator interposed between the positive electrode and the negative electrode, and an electrolyte solution, wherein the positive electrode comprises a positive current collector; and a positive electrode active material layer formed on at least one surface of the positive current collector, the positive electrode active material layer comprising a plurality of positive electrode active material particles, a first binder polymer and first copper oxide particles (Cu_xO_y, where x and y are natural numbers).

SECONDARY BATTERY

Resumen de: EP4765377A1

A secondary battery according to an embodiment of the present disclosure may include an electrode assembly; an outer packaging formed from a sheet such that the outer packaging has an internal space for accommodating the electrode assembly and an outer packaging opening configured to communicate the internal space with an outside; and a cap configured to cover the outer packaging opening. The cap may include a covering portion coupled to the outer packaging; and a terminal portion disposed to cover the outer packaging opening together with the covering portion, wherein the terminal portion is exposed to each of an outside and an inside of the covering portion, and a part of the terminal portion exposed to the inside of the covering portion is electrically connected to the electrode assembly. The terminal portion may include a material having a lower water vapor transmission rate than a material included in the covering portion. An area in which the terminal portion covers the outer packaging opening may be equal to or greater than 90% of an area in which the cap covers the outer packaging opening.

POSITIVE ELECTRODE AND MANUFACTURING METHOD THEREFOR

Resumen de: EP4765235A1

The present disclosure relates to a positive electrode and a method of manufacturing the same. The positive electrode includes lithium manganese iron phosphate with an olivine structure as a positive electrode active material, which provides high structural stability. In addition, the lithium manganese iron phosphate can be easily controlled for particle size distribution by doping and/or substituting with one or more metals, therefore the positive electrode including the same has the advantages of excellent rolling density and energy density.

DEVICE FOR ASSEMBLING BATTERY MODULE

Resumen de: EP4765437A1

0001 The present disclosure relates to a battery module assembly device, and a battery module assembly device according to one aspect of the present disclosure is a device for assembling busbars to a semi-assembly of a battery module, and the battery module assembly device may include a main frame in which busbar holes are formed; and a support frame movably coupled to the main frame to support the busbars disposed in the busbar holes or to release the support to allow the busbars to fall downward.

BATTERY DIAGNOSIS METHOD AND BATTERY TESTING APPARATUS USING SAME

Resumen de: EP4764552A1

0001 A battery diagnosis method according to an embodiment of the present invention relates to a method for diagnosing a cell abnormality during charge/discharge testing for a module including a plurality of cells, wherein the battery diagnosis method may comprise the steps of: collecting battery-state-related measurement values for respective cycles of the charge/discharge testing; determining whether a voltage deviation between cells within the module among the battery-state-related measurement values is greater than or equal to a set threshold value; if the voltage deviation between cells within the module is greater than or equal to the set threshold value, calculating data representing the amount of capacity changes in the module relative to the amount of changes in a charging voltage or a discharging voltage; and identifying a trend of the data representing the amount of capacity changes in the module relative to the amount of changes in the charging voltage or the discharging voltage, so as to determine an abnormal cell within the module.

WELDING MANAGEMENT DEVICE, WELDING MANAGEMENT METHOD, AND WELDING MANAGEMENT SYSTEM

Resumen de: EP4763409A1

According to some embodiments, a voltage conversion device includes an interface configured to acquire electrical data collected during a welding process for a battery cell, and a controller configured to derive a state score representing a welding state of the battery cell from the electrical data based on a state diagnosis model, determine whether a data shift of a first distribution of state scores for target battery cells occurs by comparing the first distribution and a second distribution of state scores of training data used to train the state diagnosis model, and adjust the state diagnosis model based on a difference between the first distribution and the second distribution when the data shift occurs.

COATING APPARATUS

Resumen de: EP4763358A1

The technical idea of the present disclosure provides a coating apparatus including: a coating die comprising a first electrode slurry outlet discharging a first electrode slurry, a first insulating liquid outlet discharging a first insulating liquid, a second electrode slurry outlet discharging a second electrode slurry, and a second insulating liquid outlet discharging a second insulating liquid; a first coating shim inserted into the coating die and comprising a first electrode slurry flow path communicating with the first electrode slurry outlet and a first insulating liquid flow path communicating with the first insulating liquid outlet; and a second coating shim inserted into the coating die and comprising a second electrode slurry flow path communicating with the second electrode slurry outlet and a second insulating liquid flow path communicating with the second insulating liquid outlet, wherein a solid content of the first insulating liquid is different from a solid content of the second insulating liquid.

BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: EP4765402A1

0001 A battery pack according to the present disclosure may include: a pack case having a storage space configured to store a plurality of battery cells therein and an opening formed on one side; a pack lid configured to cover the opening; a partition frame coupled to the pack case so as to partition the storage space; a first fastening member having at least a portion passing through the pack lid, and coupled to the partition frame; and a second fastening member fixed to the partition frame and configured to be fastened with the first fastening member, wherein the second fastening member may have at least one reinforcement member protruding in a direction different from a penetration direction of the first fastening member and causing the second fastening member to be caught on the partition frame, and may have at least a portion configured as a material whose properties change in a predetermined high-temperature environment to weaken bonding strength between the first fastening member and the partition frame.

SYSTEM AND METHOD FOR BATTERY MANUFACTURING

Resumen de: EP4765208A1

Disclosed herein is a battery manufacturing system comprising at least one intermediate conduit or intermediate container configured to receive a battery material mixture from a reactor configured for making the battery material mixture from substances including an active material, a binder and a solvent, and/or configured to provide the battery material mixture to at least one deposition device configured for applying the battery material mixture onto an electrode substrate, and at least one content measuring device configured to determine a content of at least one of the substances in the mixture.

POUCH CELL

Resumen de: EP4765359A1

0001 Disclosed is a pouch cell comprising a top cover assembly, an aluminum-plastic film and a core pack, wherein top cover assembly comprises an upper top cover and a lower top cover, the upper top cover comprises a top wall and a first side wall perpendicular to the top wall, the lower top cover comprises a bottom wall and a second side wall perpendicular to the bottom wall, an upper part of the aluminum-plastic film is fitted to the outside of the first side wall, a lower part of the aluminum-plastic film is fitted to the outside of the second side wall, the aluminum-plastic film constitutes a side of the pouch cell, core pack is arranged in a space formed by the upper top cover, the lower top cover and aluminum-plastic film, upper top cover is provided with a terminal post.

TAB STRUCTURE AND POUCH CELL

Resumen de: EP4765358A1

Disclosed are a tab structure and a pouch cell comprising the tab structure. The tab structure comprises a conductive portion and a storage container, wherein the storage container is fixedly mounted at the bottom of the conductive portion, and the interior of the storage container is a cavity for storing electrolyte. The tab structure is provided with the storage container for storing electrolyte, and the electrolyte in the storage container replenishes the needs of a battery cell in a timely manner, thereby increasing the electrolyte retention of the pouch cell. In this way, the problem of insufficient electrolyte in the later stage of the pouch cell can be solved effectively, thereby improving the cycle performance of the cell and further increasing the service life of the pouch cell.

Battery cell module of pouch cell battery

Resumen de: GB2702603A

A battery cell module 40 of a pouch cell comprises multiple battery cells 42, each having a thickness and a length and equipped with two tabs. The module comprises multiple first bonding elements 44, each a thin film, and multiple second bonding elements 46, each a sheet with a thickness greater than the first bonding element and elasticity in the thickness direction 92, preferably being a foam, allowing it to elastically compress or expand in the thickness direction. The cells and bonding elements are arranged parallel along the thickness direction, each cell having one tab 43 configured at each end along the length direction 94. Each bonding element is located between two cells, adhering them. Between each adjacent two cells along the thickness direction there is only one first bonding element or one second bonding element. The first and second bonding elements may be arranged alternately along the thickness direction. Figure 3

ELECTRICAL ENERGY STORAGE DEVICE FOR A MOTOR VEHICLE AND RELATIVE ASSEMBLY METHOD

Resumen de: EP4765336A1

A device (1) for the storage of electrical energy for a motor vehicle (100) comprising a casing (2) defining an inner volume (3) and electrochemical cells (4) housed in the inner volume (3) and brought together along a direction (X). The device (1) comprises a foam element of a first type (5a) interposed between a first pair of electrochemical cells (4) along the direction (X) and a foam element of a second type (5b) interposed between a second pair of electrochemical cells (4) along the direction (X).

CATHODE ACTIVE MATERIAL, BATTERY, AND METHOD FOR PRODUCING CATHODE ACTIVE MATERIAL

Resumen de: EP4765241A2

The present disclosure relates to a cathode active material, a battery, and a method for producing a cathode active material. The cathode active material includes: an olivine phosphate compound (1) including at least one selected from the group consisting of lithium manganese phosphate and lithium manganese iron phosphate; and a coating (5) that covers at least part of a surface of the cathode active material, and contains carbon and iron.

SOLID-STATE BATTERY AND METHOD OF MANUFACTURING SOLID-STATE BATTERY

Nº publicación: EP4765232A1 24/06/2026

Solicitante:

TOYOTA MOTOR CO LTD [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA

Resumen de: EP4765232A1

0001 A solid-state battery, including a negative electrode layer and a solid electrolyte layer that is adjacent to the negative electrode layer, the negative electrode layer containing a negative electrode active material and a solid electrolyte, and the negative electrode active material containing complexes that include plural particles, and particles that are not included in the complexes, wherein at least some of the particles that are not included in the complexes penetrate into the solid electrolyte layer.