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1197
resultados
Última actualización
19/08/2025 [07:13:00]
Resultados 250 a 275 de 1197
Resumen de: WO2025168017A1
A composite copper current collector having high mechanical properties, and a preparation method therefor and a use thereof. The composite copper current collector comprises a polymer film layer (1); and conductive layers (3) located on the surfaces of two sides of the polymer film layer (1). Each conductive layer (3) comprises a seed copper layer (31) and a thickened copper layer (30), the thickened copper layer comprises coarse-grained copper layers (301) and fine-grained copper layers (302), the coarse-grained copper layers (301) and the fine-grained copper layers (302) are alternately stacked, and a coarse-grained copper layer (301) is located on at least part of the surface of the seed copper layer (31). In the provided composite copper current collector, each fine-grained copper layer (302) provides good tensile strength and yield strength, each coarse-grained copper layer (301) provides a good elongation rate, and the two improve the mechanical properties of the composite copper current collector, enhancing the stability of the composite copper current collector during battery processing and cycling.
Resumen de: WO2025167950A1
The present application relates to the technical field of batteries, and discloses a battery cover plate structure and a battery. The battery cover plate structure comprises: a cover plate body; a terminal having a body portion indirectly abutting the surface of a side of the cover plate body; and an insulator disposed between the cover plate body and the body portion, the insulator having a barrier portion spacing the cover plate body from the body portion, and a wrapping portion extending from the barrier portion toward the body portion and surrounding the outer periphery of the body portion, wherein in a plane parallel to the plane of the body portion, the wrapping portion extends toward the circumferential side surface of the body portion to form a plurality of limiting teeth, which are either in contact with or spaced apart from the circumferential side surface of the body portion. The battery cover plate structure provided in the present application can facilitate the assembly of the body portion and the insulator, preventing problems such as swaying of the terminal after assembly and thus contributing to the sealing performance of the battery cover plate structure; and can avoid interference fit between the body portion and the insulator caused by machining dimensional errors, eliminating assembly difficulties.
Resumen de: WO2025168159A1
A battery (100) and an electric device. The battery (100) comprises a battery cell (20), a box (10) and a protective plate (30), wherein an electrode terminal (201) is provided on one side of the battery cell (20) in a first direction (X); the box (10) is provided with an accommodating space (103) for accommodating the battery cell (20); and the protective plate (30) is arranged in the accommodating space (103) and is located on one side of the battery cell (20) in the first direction (X), and the protective plate (30) comprises a main body portion (301) and a cushioning portion (302), which are connected to each other, the cushioning portion (302) protruding from the side of the main body portion (301) facing the battery cell (20) and being opposite the electrode terminal (201) in the first direction (X). In the above structure, the cushioning portion (302) of the protective plate (30) protrudes from the side of the main body portion (301) facing the battery cell (20) and is opposite the electrode terminal (201) in the first direction (X), so that when the protective plate (30) is impacted and deforms, the cushioning portion (302) can come into contact with the electrode terminal (201) of the battery cell (20) having a good strength, and the cushioning portion (302) can cushion the action forces between the protective plate (30) and the battery cell (20), causing the electrode terminal (201) of the battery cell (20) to be less prone to deforming, and thereby facilitating an
Resumen de: WO2025167155A1
A battery cell (6), a battery (2), and an electrical device. The battery cell (6) comprises an electrode assembly (10), a casing (20), a pressure relief mechanism (40), and a protective member (50). The electrode assembly (10) is accommodated in the casing (20). The casing (20) comprises a wall portion. The pressure relief mechanism (40) is arranged on the wall portion. In the thickness direction of the wall portion, at least part of the protective member (50) is provided between the pressure relief mechanism (40) and the electrode assembly (10). When a high-temperature substance outside the battery cell (6) acts on the pressure relief mechanism (40) and melts through the pressure relief mechanism (40), the protective member (50) can bear the thermal shock of the high-temperature substance and separate at least part of the high-temperature substance from the electrode assembly (10), so that the risk of conduction of a positive electrode and a negative electrode of the electrode assembly (10) by the high-temperature substance is reduced, thereby improving the reliability of the battery cell (6).
Resumen de: WO2025166903A1
A battery and an electrical device, which belong to the technical field of batteries. The battery comprises a case assembly, a battery cell assembly and a heat exchange assembly, wherein the case assembly comprises a case and a first expansion beam arranged in the case, the space in the case being divided into a first space and a second space by means of the first expansion beam; the battery cell assembly is arranged in the case and located in the first space, the end of the battery cell assembly abutting against the first expansion beam; and the heat exchange assembly is arranged on the case assembly and comprises a heat exchange member, a current collector and an adapter, the heat exchange member and the battery cell assembly being arranged to allow heat exchange, the heat exchange member being in communication with the current collector, and the adapter being in communication with the current collector. A clearance space is formed between the first expansion beam and the case or on the first expansion beam; the current collector and the adapter are both arranged in the case, and at least one of the current collector and the adapter is at least partially located in the clearance space.
Resumen de: WO2025166899A1
The present application discloses a battery (1000), and an electrical apparatus having same. The battery (1000) comprises: a battery assembly (200), the battery assembly (200) comprising a battery unit (201), and the battery unit (201) comprising multiple battery cells (2011) stacked along a first direction; a heat exchange member (100), disposed at one side of the battery assembly (200) in a second direction, the first direction intersecting with the second direction. The heat exchange member (100) comprises a heat exchange tube, the heat exchange tube having a heat exchange flow channel, and the heat exchange flow channel being bent and extending on a surface of one side of the battery assembly (200) in the second direction, a wall surface of the battery cell (2011) fitting with the heat exchange tube being a projection surface, and an area of an orthographic projection of the heat exchange tube onto the wall surface being greater than or equal to 15% of the area of the wall surface.
Resumen de: WO2025167668A1
A charging control method, comprising: acquiring a first state parameter of an electronic device connected to a portable energy storage device; and generating a corresponding battery maintenance control instruction on the basis of the first state parameter, wherein the battery maintenance control instruction is used for performing discharge control on the portable energy storage device, so that the electronic device is charged to change the first state parameter of the electronic device.
Resumen de: WO2025167802A1
Provided are a battery and a vehicle. The battery is applied to the vehicle. The battery comprises a case, a battery management unit, a first layer of battery cells, and a second layer of battery cells. The case comprises a case housing and a case cover, an opening is formed in the case housing, the case cover covers the opening in a first direction, the case cover is provided with a clearance portion, and the clearance portion is used for providing clearance for a vehicle beam of the vehicle. The first layer of battery cells and the second layer of battery cells are arranged in the case and are stacked in the first direction. The first layer of battery cells is closer to the case cover than the second layer of battery cells. The first layer of battery cells comprises a first battery module and a second battery module which are located on two sides of the clearance portion in a second direction, and the first direction and the second direction are perpendicular to each other. The battery management unit is arranged in the case. The battery management unit is located between the first battery module and the second battery module and is offset from the clearance portion in the second direction. The technical solution can improve the volumetric energy density of the battery.
Resumen de: WO2025167803A1
Embodiments of the present application relate to the technical field of wound battery cells, and provide a high-speed winding process and a wound battery cell. The winding process comprises the following continuously performed procedures: an electrode sheet connection procedure, a combining procedure, and a winding procedure. The connection procedure comprises: using a first connecting strip to connect the tail of a first cathode sheet segment and the head of a second cathode sheet segment, and using a second connecting strip to connect the tail of a first anode sheet segment and the head of a second anode sheet segment. The combining procedure comprises: combining the first connecting strip, a first separator, the second connecting strip, and a second separator to form a multi-layer structure strip. The winding procedure comprises: winding the multi-layer structure strip to form a battery cell, and cutting at the connection location between the first separator, the first connecting strip, the second separator, and the second connecting strip to start winding a next battery cell. The first connecting strip and the second connecting strip are both porous-structured connecting strips. The winding process provided by the embodiments of the present application enables high-speed winding and improves the performance stability of the prepared wound battery cells.
Resumen de: WO2025166898A1
A battery (1000), and an electrical apparatus having same. The battery (1000) comprises: a battery assembly (200), comprising a battery unit (201), the battery unit (201) comprising multiple battery cells (2011) stacked along a first direction; and a heat exchange member (100), comprising a heat exchange tube, the heat exchange tube having a heat exchange flow channel, and the heat exchange flow channel comprising multiple flow channel portions connected in a bent manner. Each battery unit (201) is at least attached to two flow channel portions, so as to perform heat exchange.
Resumen de: WO2025166894A1
A battery (100) and an electrical device (1000). The battery (100) comprises: a case assembly (20), which comprises a case (21), the case (21) being an integrally stamped part having a bottom wall (211) and a surrounding wall (212); and a battery cell assembly (101), which is arranged in the case assembly (20) and is fixedly connected to the bottom wall (211) of the case (21); and a first heat exchange assembly (30), which is arranged in the case assembly (20) and exchanges heat with the battery cell assembly (101). The sealing effect and structural strength of the case (21) can be improved, thus improving the reliability of the battery (100); in addition, the cost can be reduced, and the production efficiency can be improved.
Resumen de: WO2025166893A1
A battery (1) and an electric device. The battery (1) comprises: a case (200) having an accommodating cavity (21); and a first heat exchange member (100) attached to the outer side of the wall of the case (200) away from the accommodating cavity (21) and used for exchanging heat with battery cells (102).
Resumen de: WO2025166896A1
A heat exchange member (100), a battery (1000) and an electrical device. The heat exchange member (100) comprises a first heat exchange flow channel (10), the first heat exchange flow channel (10) comprising a first heat exchange section (11) and a second heat exchange section (12), wherein the second heat exchange section (12) is bent to form a U-shaped area (120), and the first heat exchange section (11) is bent and arranged in the U-shaped area (120) and is connected to the second heat exchange section (12) by bending.
Resumen de: WO2025166902A1
A battery and an electrical apparatus, relating to the technical field of batteries. The battery comprises a case assembly, a battery cell assembly, and a heat exchange assembly; the case assembly comprises a case; the battery cell assembly is arranged in the case and comprises a plurality of battery cells; the heat exchange assembly comprises a heat exchange member, adapters, and connecting pipes; the heat exchange member is arranged outside the case and defines a first flow channel; the adapters are arranged in the case and define a second flow channel; the connecting pipes pass through the case and are communicated with the first flow channel and the second flow channel.
Resumen de: WO2025167713A1
The present application relates to the technical field of batteries. Provided are a battery cell, a battery and an electric device. The battery cell comprises a casing, binding portions and at least one electrode assembly, wherein the casing is provided with first wall portions; the electrode assembly is accommodated in the casing, and comprises electrode sheets stacked in a first direction, the electrode sheets and the first wall portions being stacked in the first direction; the electrode assembly comprises a body portion and tabs, the tabs being provided on at least one section of the body portion in a second direction, and the first direction intersecting with the second direction; the binding portions are disposed in the casing; and in the first direction, the tabs of the electrode assembly that is closest to the first wall portions are first tabs, the binding portions are connected to an insulating body, and at least parts of the binding portions extend to positions between the first tabs and the first wall portions and abut against the surfaces of the first tabs facing the first wall portions. The improvement of the cycle performance of the battery cell is facilitated.
Resumen de: WO2025167674A1
An adhesive-tape affixing device, comprising: two first adhesive-tape affixing assemblies (10), which are spaced apart in a first direction (X1), an electrode sheet material strip (A) passing through a space between the two first adhesive-tape affixing assemblies (10), each first adhesive-tape affixing assembly (10) having a suction end configured to suction a first adhesive tape (B), and the suction ends of the two first adhesive-tape affixing assemblies (10) controllably moving close to each other in the first direction (X1), so as to clamp the passing electrode sheet material strip (A) and respectively affix the first adhesive tapes (B) onto the passing electrode sheet material strip (A); a clamping assembly (20), which is arranged on one side of the two first adhesive-tape affixing assemblies (10) in a second direction (X2) and is configured to clamp the passing electrode sheet material strip (A), the second direction (X2) intersecting the first direction (X1); a cutting assembly (30), which is configured to cut off the electrode sheet material strip (A) between the two first adhesive-tape affixing assemblies (10) and the clamping assembly (20); and a second adhesive-tape affixing assembly (40), which is configured to affix second adhesive tapes (C) onto two cut ends (a) formed by means of cutting off the electrode sheet material strip (A). Further provided are a winding apparatus and an adhesive-tape affixing method.
Resumen de: WO2025167744A1
A fire safety system, comprising a first-level fire-fighting unit (11) and a second-level fire-fighting unit (12), wherein the first-level fire-fighting unit (11) cooperates with the second-level fire-fighting unit (12) to perform safety protection on batteries of the entire energy storage device, thereby improving the safety of the entire energy storage device, and solving the problems of the treatment effects of fire safety measures for existing energy storage devices not being ideal and the energy storage devices having safety hazards. Further disclosed are a centralized fire safety system, an energy storage device, and an energy storage system.
Resumen de: WO2025166897A1
A battery (1000) and an electrical device. The battery (1000) comprises a box body (300), a battery cell (201), and a heat exchange member (100). The box body (300) comprises a box main body (301), the box main body (301) having an accommodating cavity (3011), and a groove (3014) being formed in a wall body of the box main body (301). The battery cell (201) is disposed in the accommodating cavity (3011). The heat exchange member (100) is at least partially embedded in the groove (3014) and attached to the wall body, and is used for heat exchange with the battery cell (201).
Resumen de: WO2025166880A1
A busbar (11), a busbar assembly (10) and a battery module. The busbar (11) comprises: at least two battery cell connecting main bodies, wherein the at least two battery cell connecting main bodies are spaced apart, and the battery cell connecting main bodies are configured to be connected to poles of battery cells; and a terminal connecting main body (113) arranged between two adjacent battery cell connecting main bodies and connected to the two corresponding battery cell connecting main bodies, wherein an accommodating groove (11b) is formed in one battery cell connecting main body, and the accommodating groove (11b) is configured to accommodate and mount a temperature sensor.
Resumen de: WO2025167050A1
The present disclosure discloses a battery cell winding system and method. The battery cell winding system comprises an upper-level computer, a control device, and a barcode scanner. The control device is configured to: upon determining that a battery cell has been delivered to a barcode scanning position of the barcode scanner, send a barcode scanning trigger signal to the upper-level computer. The upper-level computer is configured to: upon receiving the barcode scanning trigger signal from the control device, instruct the barcode scanner to scan a barcode of the battery cell; perform verification processing on the barcode to obtain a first verification result; and when the first verification result indicates successful verification, acquire related data of the battery cell from the control device and storing said data. The verification processing comprises duplicate-code verification to compare the barcode with a previously obtained barcode.
Resumen de: WO2025167103A1
The present application provides a sodium secondary battery, a positive electrode sheet, a sodium supplement additive, and an electric device. The sodium secondary battery of the present application comprises a sodium supplement additive, and the sodium supplement additive has a molecular formula of NawBxDyOz, wherein B comprises at least one of P, Sb, Ge, Ti, Sn, As, and Si, D comprises at least one of S, Se, and Cl, w is greater than 0 and less than or equal to 15, x is greater than 0 and less than or equal to 5, y is greater than 0 and less than or equal to 15, and z is greater than or equal to 0 and less than or equal to 5. The sodium secondary battery of the present application has good mass energy density and cycle performance.
Resumen de: WO2025167089A1
A negative electrode current collector, a battery cell, a battery, and an electrical apparatus. The negative electrode current collector comprises a negative electrode substrate and a modification layer located on at least one side of the negative electrode substrate, the modification layer comprising an active reaction layer, and a layered material layer located between the active reaction layer and the negative electrode substrate. The battery has good cycle performance.
Resumen de: WO2025167805A1
The present application relates to the technical field of battery cell winding. Provided in the embodiments of the present application are a continuous sheet-feeding and winding mechanism and a winding process thereof. The winding process provided in the embodiments of the present application comprises a first bonding process, a second bonding process and a winding and cutting process, wherein the first bonding process comprises a positive electrode sheet and separator bonding process and a negative electrode sheet and separator bonding process that are performed synchronously; the second bonding process comprises bonding a positive composite layer and a negative composite layer to form a combined composite layer; and the winding and cutting process comprises feeding the combined composite layer into a winding machine at a running speed of not less than 600 mm/s for winding, and cutting same and starting to wind the next battery cell. Further provided in the present application is a continuous sheet-feeding and winding mechanism. The winding process provided in the present application can realize continuous feeding and winding at a high speed of 600 mm/s or more.
Resumen de: WO2025167804A1
A wound battery cell structure comprises a cathode sheet (21), a first separator (31), an anode sheet (22), a second separator (32), a first connecting sheet (11) arranged at a starting end and connecting the cathode sheet (21) and the first separator (31), a third connecting sheet (13) connecting the anode sheet (22) and the second separator (32), a second connecting sheet (12) arranged at an ending end and connecting the cathode sheet (21) and the first separator (31), and a fourth connecting sheet (14) connecting the anode sheet (22) and the second separator (32), wherein the cathode sheet (21), the first separator (31), the anode sheet (22), the second separator (32), the first connecting sheet (11), the third connecting sheet (13), the second connecting sheet (12), and the fourth connecting sheet (14) are stacked in sequence and wound. The first separator (31), the second separator (32), the first connecting sheet (11), and the third connecting sheet (13) are aligned at the starting end, and the first separator (31), the second separator (32), the second connecting sheet (12), and the fourth connecting sheet (14) are aligned at the ending end. The wound battery cell structure provided by the present application has excellent electrical performance and can be prepared efficiently.
Nº publicación: WO2025167801A1 14/08/2025
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
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Resumen de: WO2025167801A1
Disclosed in the present application are a battery and an electric device. The battery is configured to be connected to brackets. The battery comprises a case. The case comprises a first case and a second case, wherein in a first direction, the first case and the second case are connected to each other, and the first case and the second case jointly define a chamber for accommodating a battery cell. The first case is provided with a first connecting face and second connecting faces, which face the first direction, the first connecting face being connected to the second case, and the second connecting faces being configured to be connected to the brackets. The positions of the first connecting face and the second connecting faces in the first direction do not overlap. The technical solution provided in the present application can improve the volumetric energy density of the battery.
BOPI
Sede Electrónica
