Abstract: Embodiments of the present application provide a battery cell, a battery, and a power consuming device. The battery cell includes: an anode plate, including an anode current collector and an anode active material layer, wherein the anode current collector includes an anode main body portion and an anode tab led out from the anode main body portion, and the anode active material layer is provided on at least part of a surface of the anode main body portion; and a cathode plate configured to be stacked with the anode plate in a first direction, the cathode plate including a cathode current collector; wherein at least one of the anode current collector and the cathode current collector is provided with a reinforcement layer on a lead-out side of the anode tab.

Abstract: A battery cell, a battery, and an electric device are provided. The battery cell includes: a housing having a first wall; a pressure relief mechanism provided on the first wall; an electrode leading-out portion provided on the housing; an electrode assembly provided in the housing and provided with tabs; and an adapter connected to the electrode leading-out portion and the tabs, wherein the adapter is provided with a reinforcing portion, and in the thickness direction of the first wall, the projection of the reinforcing portion on the first wall at least partially covers the pressure relief mechanism.

Abstract: A battery cell, a battery and an electricity-consuming apparatus are provided by the present application. The battery cell includes an electrode assembly including an electrode main body that includes an electrode sheet and a separator stacked with each other, and an electrode tab extending from an end face of the electrode main body; and an infiltrating film including a first end and a second end arranged opposite to each other in a length direction thereof, in which the second end is connected to the separator, and the first end extends beyond the electrode main body.

Abstract: An electrode assembly includes first and second electrode plates, and a separator provided between the first and second electrode plate. The first electrode plate, the separator, and the second electrode plate are wound in a winding direction. At least one first surface of the first and second electrode plates at a side closer to the separator includes first, second, and third surface regions divided along the winding direction. The second surface region has a plurality of second protrusion structures distributed discretely. The first surface region has no protrusion structure or a plurality of first protrusion structures distributed discretely. The third surface region has no protrusion structure or a plurality of third protrusion structures distributed discretely. A protrusion height of the plurality of first protrusion structures and/or a protrusion height of the plurality of third protrusion structures is less than a protrusion height of the plurality of second protrusion structures.

Abstract: A battery cell includes: a hexahedral housing, where the hexahedral housing has a first wall and a second wall oppositely arranged, the first wall is provided with a positive electrode terminal, and the second wall is provided with a negative electrode terminal; and a cylindrical electrode assembly arranged in the housing, where the axial direction of the cylindrical electrode assembly is perpendicular to the first wall or the second wall, a positive electrode tab of the cylindrical electrode assembly is arranged at a first end of the cylindrical electrode assembly and connected to the positive electrode terminal, and a negative electrode tab of the cylindrical electrode assembly is arranged at a second end of the cylindrical electrode assembly and connected to the negative electrode terminal.

Abstract: A battery cell includes a shell and an electrode assembly accommodated in the shell. The shell includes a wall portion, the wall portion includes a main body, a connecting portion and a reinforcing portion, the connecting portion surrounds an outer side of the reinforcing portion, and the main body surrounds an outer side of the connecting portion. The connecting portion is provided with a weakened region, and the battery cell is configured to rupture along the weakened region when an internal pressure of the battery cell reaches a threshold, so as to release the internal pressure. The maximum thickness of the reinforcing portion is greater than the maximum thickness of the main body so as to reduce deformation of the reinforcing portion under the internal pressure.

Abstract: The present application provides a battery cell, a battery, and an electrical device. The battery cell includes a shell, an electrode assembly, and a first insulating member. The shell has a wall. The electrode assembly is accommodated in the shell and includes a main body and a tab. The tab protrudes from one end of the main body in a thickness direction of the wall. The first insulating member is accommodated in the shell, the first insulating member includes an insulating body and a limit portion, the insulating body is disposed between the wall and the electrode assembly in the thickness direction of the wall, the limit portion is connected to the insulating body, and at least a portion of the limit portion is located between the main body and the shell in a first direction, where the first direction is perpendicular to the thickness direction of the wall.

Abstract: A positive electrode plate includes a current collector and an electrode membrane formed on at least one surface of the current collector. The electrode membrane includes a first positive electrode active substance layer and a second positive electrode active substance layer, and the first positive electrode active substance layer is located between the current collector and the second positive electrode active substance layer. A first positive electrode active substance material in the first positive electrode active substance layer contains hollow particles, and a second positive electrode active substance material in the second positive electrode active substance layer contains solid particles.

Abstract: Embodiments of this application provide an end cover assembly, a battery cell, a battery, and an electric device. The end cover assembly includes: an electrode terminal; a first fastener, where the first fastener encloses an accommodating space with openings at two ends in a first direction, at least a portion of the electrode terminal is accommodated in the accommodating space, and a surface of the first fastener facing the accommodating space is provided with a first insulating layer; a second fastener, where the second fastener connects at least a portion of a surface of the electrode terminal facing the first fastener and the first fastener; and an end cover plate, where a first end of the first fastener in the first direction is fixedly connected to the end cover plate to fix the electrode terminal to the end cover plate.

Abstract: The present application relates to a battery and a power consuming device. The battery includes: a case with an accommodating cavity therein; several battery cells arranged in the accommodating cavity; a collection assembly, which is fitted in the accommodating cavity and is configured to collect a conductive medium ejected when each of the battery cells undergoes thermal runaway.

Abstract: Some embodiments of this application provide a battery cell, a battery, an electrical device, and a method and equipment for manufacturing a battery cell. The battery cell includes: a shell, where the shell includes an accommodation cavity and a first wall, and an injection port is created on the first wall; an electrode assembly, accommodated in the accommodation cavity; and a flow guide, disposed between the first wall and the electrode assembly. The flow guide includes a liquid collection tank. An opening of the liquid collection tank is oriented toward the first wall. A through-hole is created on a bottom wall of the liquid collection tank. The liquid collection tank is configured to collect an electrolyte solution injected through the injection port. The electrolyte solution in the liquid collection tank flows to the electrode assembly through the through-hole.

Abstract: A battery includes a plurality of battery cells and a support member configured to support the plurality of battery cells. The support member includes a recess. One battery cell of the battery cells extends into and is supported in the recess.

Abstract: A battery cell, a battery, and a method and a device for preparing the battery are provided. The battery cell includes: a housing, having an opening; an electrode assembly, accommodated in the housing; an end cap covering the opening and provided with a pressure relief mechanism; and an insulating member, disposed between the end cover and the electrode assembly to insulate and isolate the end cover from the electrode assembly. The insulating member includes a body and a boss, a first through hole being formed in the area of the body corresponding to the pressure relief mechanism, the boss being connected to the body and extending towards the electrode assembly, a second through hole being formed in a side surface of the boss. The first through hole and the second through hole are used for forming an exhaust channel from the interior of the battery cell to the pressure relief mechanism.

Abstract: A battery cell includes: a housing; an electrode unit accommodated in the housing and including a first electrode assembly and a second electrode assembly which are disposed along a first direction, wherein the first electrode assembly and the second electrode assembly are arranged in parallel, the first electrode assembly includes a first body and a first tab, and the second electrode assembly includes a second body and a second tab, and wherein a polarity of the first tab is the same as a polarity of the second tab, and at least a part of the first tab and at least a part of the second tab are located between the first body and the second body; and a first electrode terminal disposed on the housing and electrically connected to the first tab and the second tab to export electric energies of the first electrode assembly and the second electrode assembly.

Abstract: The application relates to a battery module, a manufacturing method and a manufacturing device thereof, a battery pack and a power consumption apparatus. The battery module includes a first-type battery cell and a second-type battery cell having different chemical systems and being electrically connected at least in series, where under the conditions of 25° C. and 100% state of charge (SOC), specific power density P2 of the second-type battery cell is higher than specific power density P1 of the first-type battery cell. Satisfying: 0.04?(r1/m)/(r2/n)?14, where, r1 and r2 are resistances per unit area of a positive electrode plate of the first-type battery cell and a positive electrode plate of the second-type battery cell respectively, and m and n are numbers of laminations of the positive electrode plate of the first-type battery cell and the positive electrode plate of the second-type battery cell.

Abstract: Some embodiments of this application disclose a battery and an electrical device. The battery includes: a battery cell, where a pressure relief mechanism is disposed on a first wall of the battery cell; and a protection plate, where the protection plate is disposed opposite to the pressure relief mechanism. The protection plate is a polymer-based composite fiberboard. The technical solution provided in this application can protect a box of the battery from airflow impact and high-temperature melting arising from thermal runaway of the battery, thereby enhancing safety performance of the battery.

Abstract: An electrode plate has a first end surface in a first direction and a second end surface in a second direction, the second direction being perpendicular to the first direction. At least one of the first end surface and the second end surface has a shaped surface. The shaped surface has a partial region deviating from a reference plane along a third direction. The reference plane is constructed to be perpendicular to the first direction and pass the outermost edge of the shaped surface in the first direction. The third direction is perpendicular to the first direction and the second direction.

Abstract: A battery cell includes a shell and three electrode assemblies wound into cylinders. The three electrode assemblies are arranged in a row in the shell in such a manner that axes of the three electrode assemblies are parallel to one another, the shell has a thickness middle surface connected to the axes of the three electrode assemblies, the thickness middle surface is in a V shape, the shell has a first side surface and a second side surface both in an arcuate wavy shape, the first side surface and the second side surface are opposite each other relative to the thickness middle surface of the shell, and the three electrode assemblies are arranged between the first side surface and the second side surface.

Abstract: A battery cell includes: a casing; an end cap assembly including an end cap body and an electrode terminal located on the end cap body; and an electrode assembly arranged in the casing and including a first electrode sheet and a second electrode sheet with opposite polarities; the first electrode sheet includes a first main portion and a first electrode tab protruding from the first main portion, and the second electrode sheet includes a second main portion and a second electrode tab protruding from the second main portion; an end of the winding body includes a first conductive region and a second conductive region, the first electrode tab is led out from the first conductive region, the second electrode tab is led out from the second conductive region, and adjacent first conductive region and second conductive region are arranged to be spaced along a radial direction of the winding body.

Abstract: A battery cell includes: a housing, wherein an opening is provided at an end portion of the housing; an electrode assembly arranged inside the housing, the electrode assembly including an electrode body and a first tab, the first tab being leaded from one end of the electrode body; an end cap closing the opening, the outer periphery of the end cap being fixed to the housing by welding; and a conductive piece located between the electrode assembly and the end cap, the conductive piece being electrically connected to the first tab, the conductive piece being electrically connected to at least one of the end cap and the housing, and an outer edge of the conductive piece extending at a position close to a welding region.