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SODIUM SECONDARY BATTERY AND ELECTRIC DEVICE

Resumen de: WO2026056518A1

A sodium secondary battery and an electric device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, a separator, and an electrolyte; the negative electrode sheet comprises a negative electrode current collector, or comprises a negative electrode current collector and a sodium metal layer arranged on the surface of the negative electrode current collector; the electrolyte comprises colloidal particles, an electrolyte salt and a solvent; the Raman spectrum of the electrolyte comprises a first Raman characteristic peak having a Raman shift ranging from 815 cm-1 to 825 cm-1 and a second Raman characteristic peak having a Raman shift ranging from 845 cm-1 to 855 cm-1, the peak area A1 of the first Raman characteristic peak and the peak area A2 of the second Raman characteristic peak satisfying: (A1+A2)/S1≤30%. In the formula, S1 represents the sum of peak areas of all characteristic peaks appearing in the Raman spectrum and having a Raman shift ranging from 800 cm-1 to 900 cm-1. The sodium secondary battery achieves both high capacity and high safety performance.

SYSTEM FOR A BICYCLE INCLUDING AN ENERGY STORAGE DEVICE

Resumen de: EP4711178A1

A system for an electric bicycle (50) includes an energy storage device (102). The energy storage device (102) includes a housing that is mountable to a frame (52) of the electric bicycle (50), battery cells disposed within the housing, and output power terminals supported by the housing and electrically connectable to the battery cells. The energy storage device (102) includes a processor and a first wireless communication device. The system includes a human/machine interface (HMI) electrically connected to the energy storage device (102) via the output power terminals. The HMI includes a second wireless communication device. The processor is configured to change a mode of the energy storage device (102) based on a signal received by the first wireless communication device from the second wireless communication device.

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.

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.

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.

APPARATUS AND METHOD FOR COATING

Resumen de: EP4712151A1

Embodiments of the present disclosure provide a coating apparatus. The coating apparatus includes a first material supply unit configured to coat a first mixture layer on a first surface of a substrate, the substrate having markers repeatedly formed along a machine direction, a first sensor configured to sense the first mixture layer and the markers, and a processor configured to determine a position of the first mixture layer based on the markers.

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.

METHOD AND APPARATUS FOR MANUFACTURING ALL-SOLID-STATE BATTERY

Resumen de: EP4712194A1

A manufacturing method and apparatus for an all-solid-state battery are disclosed, which allow for isostatic pressing without causing cell distortion, thereby preventing cracks in the electrode and electrolyte layers. The manufacturing method for the aforementioned all-solid-state battery includes the steps of: (a) arranging a lower jig with an opening formed in its center portion; (b) accommodating the cup part of a pouch cell downward into the opening of the aforementioned lower jig, and placing the sealing part located on the outer periphery of the aforementioned cup part on the upper surface of the aforementioned lower jig, thereby fixing the aforementioned pouch cell; (c) fixing an upper jig with an opening formed in its center portion on top of the aforementioned lower jig so that the openings overlap and the sealing part of the pouch cell is compressed; and (d) isostatically pressing the aforementioned pouch cell while the pouch cell is seated in the upper jig and lower jig.

BATTERY

Resumen de: EP4712223A1

A battery of the present disclosure includes: an electrode body including a solid electrolyte; a case housing the electrode body; and a resin body provided in gaps between the case and end surfaces of the electrode body. The resin body includes a first layer laminated on the end surfaces of the electrode body and a second layer laminated on the first layer. A resin component of the first layer is a resin having a hydroxy group that is less than 100 ppm. The second layer is a layer that electrically insulates the electrode body and the case.

METHOD FOR MANUFACTURING ELECTRODE AND ELECTRODE MANUFACTURED THEREBY

Resumen de: EP4712148A1

A method for manufacturing an electrode according to an embodiment of the present invention may include applying a first coating layer comprising an active material to at least one surface of a current collector comprising a metal material, applying a plurality of second coating layer comprising the active material to at least one surface of the first coating layer, and rolling the current collector, the first coating layer, and the second coating layer by a rolling device.

BATTERY ASSEMBLY AND BATTERY PACK COMPRISING SAME

Resumen de: EP4712241A1

A battery assembly includes a cell block including a plurality of battery cells, and a frame covering at least one surface of the cell block. The frame includes a plurality of venting holes that exhausts gas, and each of the plurality of venting holes has a width of about 0.01 mm or more and less than 0.61 m.

TAPE FOR MANUFACTURING BATTERY MODULE, BATTERY MODULE COMPRISING BATTERY CELLS TO WHICH TAPE FOR MANUFACTURING BATTERY MODULE IS ATTACHED, AND METHOD FOR MANUFACTURING BATTERY MODULE

Resumen de: EP4712179A1

A manufacturing method of a battery module including a step of attaching an adhesive to a battery cell includes a tape supply step in which a laminated tape having a release paper placed on one side and a sheet-like adhesive placed on the other side is continuously supplied to pass through a roller, and is supplied so that the release paper contacts the roller; an adhesive step in which a gripper gripping the battery cell glides over the roller so that the adhesive comes into contact with one surface of the battery cell, and thus the adhesive is separated from the release paper and adhered to the battery cell; and a cutting step in which the adhesive is cut by the ascent of the gripper, wherein the adhesive has a concave portion with a concave shape formed on the contact surface with the release paper so that the thickness is reduced compared to other places.

BATTERY CELL AND BATTERY MODULE INCLUDING THE SAME

Resumen de: EP4712218A1

A battery cell and a battery module including the same are disclosed. A battery cell includes an electrode assembly, a case accommodating the electrode assembly, a cap plate sealing the case, a pair of terminals protruding from the cap plate and spaced apart from each other in a first direction, a vent between the terminals, a first insulation sheet facing the cap plate, and a second insulation sheet extending from the first insulation sheet and facing the case.

BATTERY MODULE AND BATTERY PACK WITH REINFORCED SAFETY

Resumen de: EP4712245A1

Disclosed is a battery module with an improved safety by appropriately controlling venting when a thermal event occurs inside the battery module. The battery module includes a cell assembly having at least one battery cell; a module case configured to accommodate the cell assembly in an inner space thereof and having a venting hole formed therein to discharge a venting gas generated from the cell assembly; and a venting unit provided at an outer side of the module case and having a venting channel so that the venting gas discharged from the venting hole is introduced therein and discharged to the outside, the venting unit having a protrusion configured to protrude toward an outer surface of the module case from the inside of the venting channel.

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.

CONTROL METHOD AND SYSTEM FOR LOGICAL LOW BATTERY THRESHOLD-BASED PROTECTION OVER ENERGY STORAGE SYSTEM

Resumen de: EP4712294A1

This application provides a control method and system for low-power logic threshold protection of an energy storage system. The method includes: reading a charging/discharging instruction state of a battery of the energy storage system; determining a real-time state of the battery based on the charging/discharging instruction state of the battery; determining, based on the real-time state of the battery, whether a remaining capacity of the battery is less than a preset low-power threshold; and performing low-power logic threshold protection control management on the battery of the energy storage system if the remaining capacity of the battery is less than the preset low-power threshold. In this way, the real-time state of the battery is determined based on the charging/discharging instruction state of the battery of the energy storage system; whether the remaining capacity of the battery is less than the preset low-power threshold is determined based on the real-time state of the battery; and low-power logic threshold protection control management may be performed on the battery of the energy storage system when the remaining capacity of the battery is less than the preset low-power threshold, thereby resolving a problem that an existing energy storage system employs a singular control method with incomplete systematic protection for the energy storage system and without an active protection capability.

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

Nº publicación: EP4709553A1 18/03/2026

Solicitante:

SCHAEFFLER TECHNOLOGIES AG [DE]
Schaeffler Technologies AG & Co. KG

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