Alerta

SECONDARY BATTERY POCKET PORTION SEALING DEVICE AND SECONDARY BATTERY POCKET PORTION SEALING METHOD USING SAME

Resumen de: EP4664625A1

Disclosed are a secondary battery pocket portion sealing apparatus for sealing a sealing portion of a second pocket portion for gas capture, the secondary battery pocket portion sealing apparatus including a first sealing unit including a first sealing tool disposed on one side of the sealing portion so as to press and heat the sealing portion such that the sealing portion is sealed, a friction pad portion connected to the first sealing tool, the friction pad portion including a first friction pad and a second friction pad disposed at both ends of one surface of the sealing portion, and a driving member configured to move the first sealing tool and the friction pad portion to one side or the other side, and a second sealing unit including a second sealing tool disposed on the other side of the sealing portion so as to press and heat the sealing portion such that the sealing portion is sealed, and a secondary battery pocket portion sealing method using the same.

ELECTRODE PLATE NOTCHING DEVICE

Resumen de: EP4663322A1

Embodiments of the present disclosure relate to an electrode plate notching device capable of automatically correcting a bias of a press pressure transmitted to a mold during a notching process of an electrode plate, thereby preventing or reducing molding errors. An electrode plate notching device includes a lower press, a first mold seated on the lower press and including a punch hole, a second mold movable up and down above the first mold and including a punch, an upper press arranged above the second mold and movable vertically, and a correction unit connecting the upper press to the second mold and capable of multi-axis alignment.

BATTERY AND ELECTRONIC PRODUCT

Resumen de: EP4664619A2

The present application provides a battery and an electronic product. The battery includes a housing, a cover assembly and a cell body, where the cover assembly is disposed on the housing; the cover assembly includes a conductive part and a top cover, and the top cover is in insulated connection with the conductive part; the conductive part includes a flattening portion and a boss portion, and the boss portion is connected to the flattening portion; a center of the top cover is provided with a through hole, and the boss portion extends into the through hole; and the cell body is accommodated in the housing, the cell body is connected with a first tab, the first tab is connected with the conductive part. The present application provides a battery and an electronic product for at least improving the flatness and reliability of welding a tab on a conductive part.

BATTERY MODULE AND BATTERY PACK

Resumen de: EP4664621A2

A battery module includes a plurality of cells and a first fireproof layer. The cells are arranged in sequence. The first fireproof layer is arranged on the cells. The first fireproof layer is attached to top surfaces of the cells. A battery pack includes at least two battery modules stacked vertically. The fireproof performance of the battery module and the battery pack is improved, and the reliability and safety of the battery module and the battery pack are improved.

SYSTEM FOR CHARGING AN EAR-WORN ELECTRONIC DEVICE

Resumen de: EP4664932A2

A system includes a hearing device comprising a rechargeable power source, power management circuitry, and a first charging interface comprising a first cathode contact and a first anode contact spaced apart from the first cathode contact. A charging module comprises a second charging interface configured to detachably couple with the first charging interface of the hearing device. The second charging interface comprises a second anode contact having a contact surface and a displaceable second cathode contact. An arrangement is configured to displace at least a portion of the second cathode contact above the contact surface to facilitate electrical contact between the first and second cathode contacts prior to electrical contact between the first and second anode contacts. Charging circuitry of the charging module is coupled to the second charging interface and configured to charge the rechargeable power source of the hearing device.

BATTERY MANAGEMENT APPARATUS, BATTERY PACK, BATTERY SYSTEM, AND BATTERY MANAGEMENT METHOD

Resumen de: EP4664130A2

A battery management apparatus according to the present disclosure includes a voltage measurement circuit to measure a cell voltage of each of a plurality of battery cells; and a control unit to determine the cell voltage of each of the plurality of battery cells and a reference voltage of the plurality of battery cells at a preset time interval during a rest period. The control unit determines a first accumulated change of the cell voltage of each battery cell during the rest period. The control unit determines a second accumulated change of the reference voltage during the rest period. The control unit determines whether each battery cell is defective by comparing the first accumulated change of each battery cell with the second accumulated change.

AN ENERGY STORAGE CIRCUIT WITH BYPASS FUNCTIONALITY FOR A HIGH-VOLTAGE DC ENERGY MANAGEMENT SYSTEM

Resumen de: EP4664721A1

In order to improve high voltage DC systems the invention proposes an energy storage circuit for an energy storage module (18) comprising:- a positive terminal (26) and a negative terminal (28);- an energy storage assembly (30) configured for storing electrical energy, the energy storage assembly (30) including at least one energy storage cell and at least one sensor (35);- a switching assembly (36) that is switchable into any of an operational state and a bypass state and optionally a cross-conduction state, wherein in the operational state the switching assembly (36) electrically connects the energy storage assembly (30) to the positive and negative terminals to supply them with electrical power, wherein in the cross-conduction state the switching assembly (36) short-circuits the energy storage assembly (30), wherein in the bypass state the switching assembly (36) allows a direct electrical connection between the positive terminal (26) and the negative terminal (28); and- a energy storage local control unit (24) that is configured for detecting a fault condition of the energy storage assembly (30) based on the at least one sensor (35), and upon detecting the fault condition, for causing, preferably initiating, the switching assembly (36) to progress from the operational state through the cross-conduction state into the bypass state.

ELECTRODE ASSEMBLY AND BATTERY CELL HAVING THE SAME

Resumen de: EP4664578A1

The present disclosure relates to an electronic assembly including a first electrode including a first uncoated portion, a first flag portion formed by extending a part of the first uncoated portion, and a first extension portion connecting the first uncoated portion and the first flag portion, a second electrode, and a separator arranged between the first electrode and the second electrode, wherein the first electrode, the second electrode, and the separator are wound in a form of a roll around a virtual winding center, and wherein the first flag portion comprises at least one inner bent region bent in the winding center direction and at least one outer bent region bent in an opposite direction to the winding center direction.

MODULE COVER, BATTERY PACK, AND VEHICLE

Resumen de: EP4664649A1

Disclosed are a module cover, a battery pack, and vehicle, the module cover having a panel shape having an area that covers all a plurality of battery modules adjacent to one another with a crossbeam interposed therebetween, in which a fixing portion is formed on a portion corresponding to the crossbeam, and the module cover is coupled to the crossbeam by means of the fixing portion.

BATTERY SYSTEM AND VEHICLE INCLUDING SAME

Resumen de: EP4664648A1

Disclosed are a battery system and a vehicle including the same, the battery system including a battery module having one surface on which venting parts are formed, a pack casing in which the battery module is installed, and an elastic part provided on one surface of the battery module and disposed at a point that does not overlap the venting part, in which a part of the elastic part protrudes toward the pack casing and is supported, such that the elastic part presses one surface of the battery module based on the pack casing.

BATTERY CASE, AND BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: EP4664647A1

Disclosed are a battery casing, a battery pack, and a vehicle including the same, the battery casing including a casing body having an internal space in which a battery is embedded, a gas discharge hole formed in the casing body and provided to discharge a gas in the casing body, which is generated from the battery, to the outside of the casing body, and a gas discharge amplifier installed in the gas discharge hole and configured to amplify a flow rate of the gas discharged through the gas discharge hole.

A METHOD FOR WELDING AT LEAST ONE CELL COMPONENT TO AN ELECTRODE ASSEMBLY OF AN ENERGY STORAGE CELL

Resumen de: EP4664498A1

In order to improve thermo-electrical properties of energy storage cells, the invention proposes a method for welding at least one cell component (26) to an electrode assembly (18) of an energy storage cell (10), preferably a supercapacitor, the method comprising arranging each cell component (26) and the electrode assembly (18) in contact with each other, wherein each cell component (26) has an exposed welding surface (30) that is accessible for welding by a welding implement; moving the welding implement relative to the welding surface (30) to weld each cell component (26) to the electrode assembly (18) by forming a plurality of weld seams on the welding surface (30), wherein at least two of the formed weld seams are chosen from a group of weld seam types consisting of a transport weld seam that has a main directional component along a radial direction of the electrode assembly (18); and a collector weld seam (39) that has a main directional component along a circumferential direction of the electrode assembly (18).

MIXTURE AND BATTERY

Resumen de: EP4664565A1

A main object of the present disclosure is to provide a mixture with which an electrode layer and an electrolyte layer with excellent ion conductivity are obtained. The present disclosure achieves the object by providing a mixture including a first solid electrolyte and a second solid electrolyte, wherein the first solid electrolyte and the second solid electrolyte contain Li, P, and S, and have an argyrodite type crystal structure; the first solid electrolyte includes an anion component including B; and the second solid electrolyte does not include an anion component including B.

ALUMINUM ALLOY PLATE FOR CASE OF SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME

Resumen de: EP4663789A1

The present disclosure provides an aluminum alloy plate for a case (610) of a secondary battery. The aluminum alloy plate includes 1.25 wt% to 1.5 wt% of manganese (Mn), and 0.6 wt% to 0.8 wt% of magnesium (Mg).

BATTERY MODULE AND BATTERY PACK INCLUDING SAME

Resumen de: EP4664640A1

The present disclosure provides a battery module and a battery pack including the same. The battery module according to an embodiment of the present disclosure comprises: a battery cell stack in which a plurality of battery cells including electrode leads are stacked; a fixing frame including both side surface parts and a lower surface part so as to cover both side surfaces and a lower surface of the battery cell stack; a module frame in which the battery cell stack and the fixing frame are housed; and an inlet and an outlet for circulating a coolant into the interior of the module frame, wherein the battery cell stack includes a first battery cell stack and a second battery cell stack arranged along a longitudinal direction in which the electrode leads protrude from the battery cells, wherein the lower surface part of the fixing frame includes a bead surface, with the bead surface being provided with an adhesive member that abuts against the lower ends of the first battery cell stack and the second battery cell stack, and wherein the first battery cell stack and the second battery cell stack are fixed to the fixing frame by the adhesive member.

POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR REGENERATING POSITIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY

Resumen de: EP4664554A1

The present invention relates to a cathode active material, a method of recycling a cathode active material, and a secondary battery. According to the present invention, by desorbing and recovering a cathode active material from a waste cathode, applying a coating agent thereto, and controlling the calcination conditions of the coating agent-coated cathode active material, a structure similar to the crystal structure of the fresh cathode active material may be obtained, and the area where an olivine structure compound is mixed within a carbon coating layer on the surface of the cathode active material may be reduced. Accordingly, excellent battery characteristics may be provided.

STACK TYPE ELECTRODE ASSEMBLY COMPRISING ELECTRODE WITH INSULATION LAYER AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4664585A1

The present disclosure relates to an electrode assembly having a stack form of an electrode, a separator and a counter electrode, in which each of the electrode and the counter electrode includes a tab extending from a current collector; the electrode is larger than the counter electrode at four sides including a side from which the tap extends thereof, to have an exposed portion; and an insulation layer is formed on a tab portion of the electrode and on an edge portion of the electrode.

BATTERY CELL, BATTERY, POWER CONSUMPTION APPARATUS, AND MANUFACTURING METHOD AND DEVICE OF BATTERY CELL

Resumen de: EP4664618A2

The present application relates to a battery cell, a battery, a power consumption apparatus, and a manufacturing method and device of a battery cell. The battery cell includes: a shell comprising a wall part; an electrode assembly disposed within the shell; and an insulating member disposed between the electrode assembly and the wall part to isolate the wall part from the electrode assembly in an insulating manner. The insulating member is configured to elastically support the electrode assembly to buffer vibration of the electrode assembly within the shell. When the electrode assembly vibrates relative to the shell due to shaking or vibrating of the battery cell, the insulating member can buffer the vibration of the electrode assembly, and reduce an amplitude of vibration of the electrode assembly, which alleviates the problem that the electrode assembly pulls the electrode lead-out part to avoid the failure of electrical connection of the electrode assembly and the electrode lead-out part and could also mitigate rigid collision between the electrode assembly and the shell, so as to protect the electrode assembly and prolong the service life of the battery cell.

BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: EP4664644A1

A battery pack according to an embodiment of the present disclosure includes at least one battery cell including a vent portion to force gas out; and a pack case which accommodates the at least one battery cell such that the vent portion faces a lower side of the battery pack, with the vent portion exposed from the battery pack.

DEVICE AND METHOD FOR HEATING A TRACTION BATTERY IN AN ELECTRIC OR HYBRID VEHICLE

Resumen de: EP4663471A1

Die Erfindung betrifft eine Vorrichtung zum Heizen einer Traktionsbatterie (2) für ein Elektro- oder Hybridfahrzeug, wobei die Vorrichtung mindestens eine Einrichtung (7) zur Erfassung oder Ermittlung einer Temperatur der Traktionsbatterie (2), einen Kühlkreislauf (9) und mindestens eine elektrische Komponente mit mindestens einem GaN-Leistungstransistor (11) oder SiC-Leistungstransistor aufweist, wobei die Traktionsbatterie (2) und die elektrische Komponente mit dem Kühlkreislauf (9) thermisch gekoppelt sind, wobei in einem Betriebszustand der mindestens eine GaN- oder SiC-Leistungstransistor in Rückwärtsrichtung betrieben wird, wobei eine Steuereinrichtung (10) des mindestens einen GaN- oder SiC-Leistungstransistor derart ausgebildet ist, in Abhängigkeit der Temperatur der Traktionsbatterie (2) den GaN- oder SiC-Leistungstransistor für eine vorbestimmte Zeit in Rückwärtsrichtung keine Gate-Source-Spannung zuzuführen, wobei die vorbestimmte Zeit größer als eine initiale Delay-Zeit ist, sowie ein Verfahren.

BATTERY DIAGNOSIS APPARATUS AND BATTERY DIAGNOSIS METHOD

Resumen de: EP4664129A1

Provided is a battery diagnosis apparatus and a battery diagnosis method. The battery diagnosis apparatus includes a data obtaining unit configured to obtain a first target full-cell profile representing a correspondence between a capacity factor and a voltage of a target cell while a first electric stimulation is being applied to the target cell, and a control circuit configured to generate an estimated full-cell profile based on the first target full-cell profile and an overpotential profile. The control circuit determines a first performance factor group as a primary estimation result for charge/discharge performance of the target cell by applying a cell diagnosis logic to the estimated full-cell profile. The control circuit determines a second performance factor group as a secondary estimation result for the charge/discharge performance of the target cell by applying a factor correction model to the first performance factor group. The second performance factor group includes an estimation result of a negative electrode loading amount of the target cell.

ALL-SOLID-STATE BATTERY PRESSING SYSTEM

Resumen de: EP4664576A1

The present invention relates to an all-solid-state battery pressurization system comprising: a jig for pressurizing an all-solid-state battery vertically; and a hydraulic press for applying a uniform pressure to the jig, wherein the uniform pressure is applied to the jig by the pressure applied by the hydraulic press.

PELLETS FOR ELECTROLYTE INJECTION AND ELECTROLYTE INJECTION METHOD

Resumen de: EP4664671A1

The present disclosure relates to a pellet for electrolyte injection configured to connect between an electrolyte supply device for supplying an electrolyte and an open portion formed on one side of a housing of a battery, the pellet including: a hopper having a hollow structure; and a sealing member including a hopper coupling portion coupled to the hopper and spaced apart from the housing and a battery sealing portion configured to seal the open portion and at least partially spaced apart from the hopper coupling portion.

BATTERY CELL, BATTERY, AND ELECTRICAL APPARATUS

Resumen de: EP4664645A1

A battery cell (200), a battery (400), and an electrical apparatus (500). The battery cell (200) comprises an electrode assembly (300), a positive electrode plate and a negative electrode plate forming a flat area (301); a housing (60) being used for accommodating the electrode assembly (300), and the housing (60) comprising a first wall portion (11) and two second wall portions (12), the two second wall portions (12) being respectively located on either side of the flat area (301); a pressure relief portion (40), the pressure relief portion (40) being arranged on the first wall portion (11), the pressure relief portion (40) comprising a weak portion (491) and a main body portion (492), the main body portion (492) being located between the weak portion (491) and the first wall portion (11); the maximum thickness of the first wall portion (11) is Dl, the minimum thickness of the main body portion (492) is D2, the maximum thickness of the weak portion (491) is D3, and D3 < D2 < D1.

NEGATIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, AND SECONDARY BATTERY

Nº publicación: EP4664555A1 17/12/2025

Solicitante:

BTR NEW MAT GROUP CO LTD [CN]
DINGYUAN NEW ENERGY TECH CO LTD [CN]
BTR New Material Group Co., Ltd,
Dingyuan New Energy Technology Co., Ltd

Resumen de: EP4664555A1

The present disclosure relates to a field of batteries, particular to an anode material, a preparation method thereof, and a secondary battery, wherein the anode material includes a silicon-based active material and a matrix material; the anode material includes hydrogen element, halogen element, nitrogen element, and sulfur element, wherein a mass content of the hydrogen element is mH, a mass content of the halogen element is mX, a mass content of the sulfur element is mS, and a mass content of the nitrogen element is mN, and following relational expressions are satisfied: 0.02≤mX/mH≤5.00, 0.0≤mN/mH≤20.00, 0.05≤mS/mH≤5.00. According to the technical solution, by adjusting the contents of the hydrogen element, the nitrogen element, the sulfur element and the halogen element within an appropriate range, the volume expansion of the anode material can be effectively inhibited, and capacity, initial coulombic efficiency, powder conductivity, cycle performance and rate performance of anode material are improved.