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BATTERY ASSEMBLY AND BATTERY PACK COMPRISING SAME

Resumen de: EP4712235A1

Disclosed herein relates to a battery pack including: a pack housing including a first support structure; and a battery assembly accommodated within the pack housing, wherein the battery assembly includes: a cell block comprising a plurality of battery cells stacked in a first direction; a frame including a first side cover and a second side cover spaced apart in the first direction with the cell block interposed therebetween; and a top cover including a central part coupled to the frame to cover the cell block and a first outer part protruding outwardly from the first side cover, wherein the first outer part is fastened to the first support structure, wherein a first buffer space extending in the first direction is provided between the first outer part of the top cover and the first side cover.

SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME

Resumen de: EP4712217A1

A secondary battery, including a case, an electrode assembly in the case, a cap plate that seals the case, a tab member connected to the electrode assembly, the tab member extending toward the cap plate, a terminal body coupled to the cap plate, the terminal body facing the tab member, a guide plate extending from the terminal body, the guide plate being in the tab member, and a connection member in the terminal body, the connection member being connected to the tab member.

GASKET, BATTERY CELL, BATTERY PACK AND VEHICLE COMPRISING SAME

Resumen de: EP4712227A1

A battery cell according to an embodiment of the present disclosure includes an electrode assembly, a battery housing configured to accommodate the electrode assembly through an opening provided on one side, a terminal configured to be electrically connected to the electrode assembly through a closed portion provided on an opposite side of the opening of the battery housing, and a gasket interposed between the terminal and the battery housing, configured to prevent electrical connection between the terminal and the battery housing, and including a ceramic filler.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4712236A1

The present application discloses a battery cell, a battery, and an electric apparatus. The battery cell includes: a housing, the housing including a first surface, a second surface, a third surface, and a flange, where the flange is disposed around the first surface and connected to the first surface, the first surface and the third surface are opposite each other, and the second surface is connected between the flange and the third surface; and an insulating film, wrapped around an exterior of the housing, the insulating film wrapping around at least a portion of the first surface, at least a portion of the flange, at least a portion of the third surface, and at least a portion of the second surface. The insulating film is folded from the flange to the second surface to form a first folded region, and the insulating film is folded from the third surface to the second surface to form a second folded region. Along a direction from the first surface to the third surface, a dimension of the first folded region is smaller than a dimension of the second folded region. The insulating film is also capable of sufficiently wrapping around the housing when the housing is provided with a flange.

BATTERY, BATTERY PACK COMPRISING BATTERY, AND VEHICLE COMPRISING BATTERY PACK

Resumen de: EP4712254A1

A battery according to an embodiment of the present disclosure may include: an electrode assembly comprising an electrode tap having a vulnerable portion formed thereon; a battery housing configured to receive the electrode assembly through an opening formed on one side thereof; a current collector comprising a tap coupling portion electrically coupled to the electrode tap and a housing coupling portion electrically coupled to the battery housing; and a cap configured to cover the opening.

BATTERY CELL MANUFACTURING METHOD, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4712253A1

Disclosed are a method for manufacturing a battery cell (20), a battery cell (20), a battery (100), and an electric apparatus. The method for manufacturing a battery cell (20) includes: connecting an electrode lead-out member (221) of a bare cell (22) to an electrode component (25); bending the connected electrode lead-out member (221) to allow the bare cell (22) to enter an accommodating space (212) of a housing (21) through an opening (2121), the opening (2121) of the housing (21) being a side with the largest area of the housing (21); and connecting a top cover (24) to the housing (21) to close the opening (2121). The bare cell (22) of the battery cell (20) can be conveniently installed in situations where the electrode component (25) is not disposed on the top cover (24).

Automated method of dispensing

Resumen de: GB2644090A

There is an automated method (100 figure 1, 200 figure 6) of dispensing a compressible thixotropic thermal barrier material on to a vehicle part, the method comprising: conveying a first material to a mixing chamber (112 figure 4). Also conveying a second material to the mixing chamber so as to combine the first material and the second material to form the compressible thixotropic thermal barrier material in the mixing chamber. Subsequently activating a dispenser (114 figure 2) to dispense the thermal barrier material on to the vehicle part. The vehicle part may be a battery subassembly.

BATTERY MODULE

Resumen de: EP4712210A1

The battery module includes: a cell unit including at least one battery cell; at least two cooling plates tightly attached to two opposite surfaces of the cell unit, respectively; and a refractory material pad configured to surround the at least two cooling plates.

ENERGY RELEASE DEVICE AND METHOD FOR POWER BATTERY

Resumen de: EP4712204A1

The present disclosure provides an energy release device and method for a power battery. The energy release method for a power battery comprises: acquiring a thermal runaway signal of battery cells in the power battery; and electrically communicating the power battery with a discharge element, so that the power battery is discharged to a maximum safe state of charge that satisfies a mild exothermic reaction under the condition of thermal runaway, or a state of charge below the maximum safe state of charge, wherein satisfying the mild exothermic reaction is that the temperature per unit volume of the battery cells in the power battery under the condition of thermal runaway does not exceed the temperature at which the thermal runaway is triggered. According to the solution provided by the present disclosure, the development of thermal runaway in a power battery pack can be effectively delayed, time is bought for passenger escape and subsequent thermal runaway control processing, meanwhile, the destructive power of thermal runaway is reduced, and the safety management capability of the power battery is improved.

ELECTRODE ASSEMBLY, CYLINDRICAL BATTERY, AND BATTERY PACK AND VEHICLE COMPRISING SAME

Resumen de: EP4712180A1

Disclosed is an electrode assembly, a cylindrical battery, a battery pack and a vehicle. The electrode assembly has a structure in which a first electrode, a second electrode, and a separator interposed therebetween are wound. An outermost coated portion is the coated portion of the first electrode. A winding end of the separator extends further from the winding end of the coated portion of the first electrode. A fixing member is attached to the winding end of the separator along the axial direction from a point spaced apart from the axial end of the separator. When the winding end corner of the separator is folded as much as possible with the axial end of the fixing member acting as a folding bias point so that its outer surface faces the outer circumference, the winding end corner of the coated portion of the first electrode is not exposed to the outside.

DEVICE FOR CHECKING THE TIGHTNESS OF ELECTROCHEMICAL CELLS

Resumen de: WO2024230864A1

The invention relates to a device (1) for checking the tightness of electrochemical cells (2), in particular with regard to H2 tightness. The device has a chamber (3) for accommodating and checking at least one electrochemical cell (2). For the purpose of the check, the chamber (3) is subjected to a vacuum. A unit (6) for gas supply is provided, which supplies an electrochemical cell (2) to be checked with compressed air, as a result of which the interior of the electrochemical cell (2) is pressurized. This is made possible particularly advantageously in that the pressure difference between the interior of the cell (2) having the excess pressure and the chamber (3) having the vacuum is particularly high and is additionally varied periodically. As a result, there is a particular incentive for a periodically varying gas transfer between the interior of the cell (2) and the chamber (3) under vacuum, which allows for the tightness to be checked particularly advantageously and meaningfully. The pressure sensor (7) allows for a periodic pressure increase in the chamber (3) to be detected and to be analyzed by means of the control unit (8), and for meaningful information regarding insufficient tightness to be obtained, without interference by non-periodic interfering effects, and made available to the user. The device according to the invention can detect very minor leaks, which for example lead to leakage rates in the range of 10-4 mbar per liter of the volume and per second, and a

MODULE FOR DETECTING A BATTERY LEVEL OF CHARGE, ASSEMBLY COMPRISING THE MODULE, AND AIRCRAFT COMPRISING THE ASSEMBLY

Resumen de: CN121100283A

The present invention relates to a battery charge level detection module (1) comprising: an ammeter (10) comprising a magnetometer (15) and a current measurement device (18), a voltmeter (20) comprising a first contact terminal (22), a second contact terminal (24) and a voltage measurement device (28), a temperature sensor (30) comprising a temperature sensor (30), a housing (50), a first attachment (52) and a second attachment (52), the invention relates to a magnetometer (10) comprising a housing (50) intended to be attached to a first interconnection line row (82) and a second interconnection line row (84), the housing (50) having a housing (58) housing a magnetometer (15), the housing (52) being intended to be received in a measurement aperture (83) of the first interconnection line row (82), a first attachment (52) for attaching the housing (50) to the first interconnection line row (82), and a second attachment (52) for attaching the housing (50) to the second interconnection line row (84). And a second attachment (54) for attaching the housing (50) to a second interconnection line row (84).

AN AEROSOL GENERATION DEVICE

Resumen de: CN121152578A

An aerosol-generating device (100) for releasably holding a battery cell (110) comprises: an identification module (112) configured to obtain identification information of the battery cell when the battery cell is releasably held in the device; and a controller (108) configured to control a function of the aerosol-generating device based on the received identification information, where the identification module operates using a wireless communication protocol. The battery cell may be provided with an RFID tag or NFC tag (118).

METHOD FOR PRODUCING ELECTRODE MIXTURES AND DEVICE THEREFOR

Resumen de: CN121127973A

The invention relates to a method for producing an electrode mixture consisting of a plurality of substances, i.e. An active material in a mass ratio w1, optionally an additive in a mass ratio w2 and a binder in a mass ratio w3, where w1 and w3 are both gt; 0%, w2 > = 0%, and w1, w2 and w3 are lt, respectively; the percentage is 100%; the method comprises the following steps: 1) filling a container with an active material and a first percentage pa1 of an additive and/or a first percentage pb1 of a binder, in which, but or, A) a first mechanical power P1 is introduced into the substance contained in the container by means of a shear force or impact force, and a second mechanical power P2 is introduced into the substance contained in the container by means of a second shear force or impact force; 2) filling the container with a second percentage pa2 of an additive and/or a further percentage pb2 of a binder, and wherein, B) during a second time interval T2, by means of a shear or impact force, a second mechanical power P2 is introduced into the substance contained in the container to produce a second mixture, where P2gt; the method is characterized in that the method comprises the following steps: (1) adding a binder and optional additives to the container, (2) adding the binder to the container, (3) adding the binder to the container, (3) adding the binder to the container, (3) adding the binder to the container, (3) adding the binder to the container, (4) adding the binder

DIAGNOSTIC METHOD AND MEASUREMENT ARRANGEMENT FOR A COMPONENT TO BE EXAMINED

Resumen de: CN121079603A

The invention relates to a method and a measuring device for diagnosing a component to be examined, comprising the following steps: operating the component (10) to be examined in a circuit (11) at a predefined operating point for a predefined first measurement interval (12); during the first measurement interval, a measurement signal and an excitation signal (13) are detected in the circuit as a function of time, the excitation signal being a signal of a passive component (14) in the circuit, which passive component is in a predetermined first excitation state (15) at the beginning of the first measurement interval, and the passive component is in a predetermined second excitation state (15) at the beginning of the first measurement interval. And the measurement signal is formed by superposing an excitation signal of the passive device and a working signal of the component to be inspected.

DISTRESS BEACON COMPRISING A PROTECTED ELECTRIC CELL ASSEMBLY

Resumen de: WO2024231100A1

The invention relates to a distress beacon (2) comprising an electric cell assembly (10) comprising two protected electric cells (100) connected in series, each comprising an electric cell (110) having two terminals, a positive and negative electric line (111, 112) respectively connected to the terminals of the electric cell (110), a diode (120) arranged in parallel to the electric cell (110) with its anode connected to the negative electric line (112) and its cathode connected to the positive electric line (111), and an electric fuse (130) arranged in series to the electric cell (110), the electric cells (110) being configured to deliver a nominal current when discharging, the electric fuse (130) having a breaking capacity corresponding substantially to the nominal current, so that, when discharged, the electric cells (110) are each protected from a polarity reversal caused by a forced current driven through it by the other protected electric cell.

CHARGING DEVICE AND CHARGING METHOD FOR AN ELECTRICAL ENERGY STORE

Resumen de: CN121079221A

A solution for charging an electrical energy store, such as a traction battery in an electric vehicle, is disclosed. To this end, it is proposed that an AC voltage having a predetermined amplitude and frequency is superimposed on a DC voltage provided for charging the electrical energy store. In this case, the AC voltage can be adapted with respect to the impedance of the electrical energy store according to the characteristics of the electrical energy store to be charged.

DEVICE AND METHOD FOR WELDING HALF SHEETS TO FORM A BIPOLAR PLATE

Resumen de: CN120957831A

The invention relates to a device (5) and a method for welding half-sheets (2, 3) to form a bipolar plate (1). The device comprises at least three tool parts, namely a lower tool part (6a) and a multi-part upper tool part (6b), in which half-sheets (2, 3) to be welded together can be inserted between the lower tool part (6a) and the multi-part upper tool part (6b). The multi-part upper tool part (6b) comprises a plurality of individual parts (7; the individual parts (7, 8) of the multi-part upper tool part (6a) can be arranged one after the other and only alternately above the lower tool part (6a), and wherein both at least one first opening (9) for introducing a pressurized gas and at least one second opening (10) for introducing a pressurized gas are formed in each of the individual parts (7, 8) of the multi-part upper tool part (6a). The half-sheets (2, 3) can be pressed against each other by means of a pressurized gas, and a second opening (10, 10 ') for introducing joining energy during the welding process for welding the half-sheets (2, 3), the second opening (10, 10') in the individual part (7, 8) of the multi-part upper tool part (6b) as viewed perpendicular to the plane of the half-sheets (2, 3), and the second opening (10, 10 ') being formed in the individual part (7, 8) of the multi-part upper tool part (6b), as viewed perpendicular to the plane of the half-sheets (2, 3). 10 ') are largely complementary to each other and overlap only in some areas, such that only a

ENERGY STORAGE ELEMENT AND BATTERY

Resumen de: CN120958625A

A secondary energy storage element (100) includes, as electrodes, a cathode (108) and an anode (105), which are parts of an assembly (104), which are separated by a separator or a solid electrolyte layer (116), and which are arranged in the assembly in the order of cathode (108)/separator or solid electrolyte layer (116)/anode (105). The cathode (108) comprises a cathode current collector (109) and a positive electrode material (110), and the anode (105) comprises an anode current collector (106) and a negative electrode material (107). The cathode current collector (109) has a main region loaded with a layer of positive electrode material (110) on both sides and a free edge strip (109b) extending along an edge of the cathode current collector (109) and not loaded with the positive electrode material (110). Alternatively or simultaneously, the anode current collector (106) has a main region loaded with a layer of negative electrode material (107) on both sides and a free edge strip (106b) extending along an edge of the anode current collector (106) and not loaded with the negative electrode material (107). The cathode (108) and the anode (105) are formed and/or arranged in the fitting (104) in such a way that a free edge strip (109b) of the cathode current collector (109) protrudes from one side (104b) of the fitting (104) and/or a free edge strip (106b) of the anode current collector (106) protrudes from the other side (104a) of the fitting (104). The energy storage element

BATTERY AND METHOD FOR MANUFACTURING THE BATTERY

Resumen de: EP4712219A1

A battery, comprising: battery components including an electrode assembly; an inflatable pouch case enclosing the battery components inside, the inflatable pouch case having an inner surface facing the battery components and an outer surface opposite to the inner surface; and electrode leads electrically connected to the electrode assembly and extending through the inflatable pouch case from the inside of the inflatable pouch case to an outside of the inflatable pouch case; the battery being characterized in that the outer surface of the inflatable pouch case is sealingly bonded to a surface of each of the electrode leads.

ELECTROCHEMICAL ENERGY STORAGE ELEMENT

Resumen de: EP4712178A1

Ein elektrochemisches Energiespeicherelement (12) weist einen hohlzylindrisch geformten Wickelverbundkörper (10) auf, der eine spiralförmige Struktur aus mindestens zwei spiralförmig um eine Wickelachse gewickelten Elektrodenbändern (14, 24) und mindestens einem zwischen den Elektrodenbändern (14, 24) angeordneten Separatorband (38, 40) aufweist. Der hohlzylindrisch geformte Wickelverbundkörper (10) umfasst zwei endständige Stirnseiten (34, 36), eine umlaufende äußere Verbundkörpermantelfläche (42), und einen axial ausgerichteten Hohlraum (46) im Zentrum des Verbundkörpers (10), in dem ein elektrisch leitender Wickelkern (50) angeordnet ist. Der Wickelverbundkörper (10) ist in einem zylindrischen Gehäuse (60) mit einem Boden (61) und einem Deckel (62) angeordnet, derart, dass die Stirnseiten (34, 36) in Richtung des Bodens (61) und des Deckels (62) weisen. Das Energiespeicherelement (12) umfasst weiter elektrisch leitende Kontaktelemente (70, 80), die flach auf den Stirnseiten (34, 36) aufliegen.Es wird vorgeschlagen, dass der Wickelkern (50) derart ausgebildet und/oder angeordnet ist, dass er bei axialer Deformation des Gehäuses (60) das erste elektrisch leitendes Kontaktelement (70) und das zweite elektrisch leitende Kontaktelement (80) elektrisch verbindet.

COOLING DEVICE AND BATTERY CELL STACK INCLUDING SAME

Resumen de: EP4712212A1

A battery cell stack according to various embodiments comprises: a plurality of battery cells; one or more cooling devices in contact with at least one of the plurality of battery cells; and a case accommodating the plurality of battery cells and the one or more cooling devices, wherein each of the one or more cooling devices includes a refrigerant flow path therein, is configured to cool at least one of the battery cells by flowing a refrigerant through the refrigerant flow path, and may include a first surface and a second surface having different thermal conductivities. Various other embodiments are possible.

ENERGY STORAGE BATTERY AND CONTROL METHOD THEREFOR

Resumen de: EP4712297A1

An energy storage battery and a control method thereof. The energy storage battery includes battery groups connected in parallel, and each battery group includes batteries connected in series. Each battery includes a charge and discharge circuit, including a storage battery, a first switch, and a second switch, and the first switch and the second switch are used to control conduction of a connection line between two batteries. The batteries are connected in series to form the battery groups, and the battery groups are connected in parallel to form the energy storage battery, such that when the energy storage battery operates, each battery independently controls the on-off of its first switch and second switch to control the conduction of connection lines between the battery and other batteries, thereby allowing each battery of the energy storage battery to be freely extended. When a certain battery has a fault, it is merely required to control the battery group including the battery and to disconnect and repair the faulty battery, thus improving the overall operation efficiency of the energy storage battery.

BATTERY MANAGEMENT APPARATUS AND OPERATION METHOD THEREFOR

Resumen de: EP4711782A1

A battery management apparatus according to an embodiment disclosed herein includes a sensor configured to obtain a voltage of a battery unit and a controller configured to generate a differential profile for a first differential value that is variance of the voltage with respect to a variance of a state of charge (SOC) of the battery unit, based on the SOC and the voltage of the battery unit, detect an SOC corresponding to each of second differential values included in a threshold range among second differential values obtained by differentiating the differential profile, detect, from the differential profile, peak values of the differential profile among first differential values corresponding to the detected SOC, and determine a state of the battery unit based on the peak values of the differential profile.

ELECTRODE CURRENT COLLECTOR AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Nº publicación: EP4712171A1 18/03/2026

Solicitante:

LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd

Resumen de: EP4712171A1

An electrode current collector according to the present invention comprises a resin layer; a first metal layer disposed on one side of the resin layer; and a second metal layer disposed on the other side of the resin layer, wherein each of the first metal layer and the second metal layer independently has a thickness of 3.0 µm or less, and a ratio (T_R/T_M) of a thickness (T_R) of the resin layer to a thickness (T_M) of the first metal layer or the second metal layer is 1 to 24, and the electrode current collector has advantages in greatly contributing to improving the safety of the battery, reducing electrical resistance even with a structure in which a resin layer is interposed between metal layers, and improving weldability.