Abstract: This application provides a detection method for electrode plate, a detection apparatus for electrode plate, a stacking system, a detection device, and a computer-readable storage medium, where the electrode plate includes a coated portion and an uncoated portion located on at least one side of the coated portion in a longitudinal direction. The detection method includes: step S1000: obtaining dimensional parameters D1 . . . DN at different detection positions P1 . . . PN of the uncoated portion in a transverse direction perpendicular to the longitudinal direction; and step S2000: comparing the dimensional parameters D1 . . . DN with a dimensional detection standard S to determine whether the uncoated portion is folded, where N is a positive integer, and N is greater than or equal to 2.

Abstract: A device and method for heating a battery are provided. The device is provided on a first power-consuming device and includes: a first interface electrically coupled to a neutral point of a motor winding of the first power-consuming device; a second interface electrically coupled to a negative electrode of a battery of the first power-consuming device; and a control module coupled to a control system of the first power-consuming device and a control system of a second power-consuming device to coordinate and control the first power-consuming device and the second power-consuming device. The first interface is engageable with a third interface electrically coupled to a neutral point of a motor winding of the second power-consuming device. The second interface is engageable with a fourth interface electrically coupled to a negative electrode of a battery of the second power-consuming device. The control module is configured to perform a battery heating step.

Abstract: A battery and an electric device are provided. The battery includes a first box portion, a second box portion, a battery cell, and an insulating liquid. The first box portion and the second box portion fit together to define an accommodating space. The battery cell is accommodated in the accommodating space. The battery cell is provided with an electrode terminal and a pressure relief mechanism. The electrode terminal is closer to the first box portion relative to the pressure relief mechanism. The pressure relief mechanism is configured to be actuated when an internal pressure or temperature of the battery cell reaches a threshold, to release the internal pressure or high-temperature gas. The insulating liquid is provided in the accommodating space and immerses the pressure relief mechanism. When the insulating liquid is provided in the accommodating space, the first box portion is located above the second box portion.

Abstract: A tab bending detection method and apparatus, an electronic device, and a storage medium are provided. The method includes: performing skeleton extraction on a sectional image of multiple layers of tabs to obtain a skeleton image of the multiple layers of tabs; merging damaged connected components in the skeleton image to obtain a merged connected component, where the damaged connected components are connected components on which breaking occurs in a same tab section; calculating a target number of the multiple layers of tabs based on the merged connected component and an undamaged connected component; and detecting, based on the target number and a preset number, whether any tab in the multiple layers of tabs is in a bending state. The damaged connected components are merged to obtain the merged connected component.

Abstract: A cable tie device, a cable tie connection structure, a battery, and an electrical apparatus are described. The cable tie device includes: a body part provided with a first through hole; a limiting part arranged on a first side of the body part in an extending direction of the first through hole; at least two deformable connecting bars having first ends connected to the limiting part and second ends connected to a side surface, towards the limiting part, of the body part, and distributed on the periphery of the first through hole at intervals; a first strap with a first end connected to the limiting part and a second end penetrating through the first through hole; and a second strap connected to the body part.

Abstract: This application provides a negative electrode plate, including an active layer 1 and an active layer 2. The active layer 1 contains an active material 1, and the active layer 2 contains an active material 2. A powder OI value of the active material 1 falls in a range of 8 to 32, and a powder OI value of the active material 2 falls in a range of 2 to 7. A gram capacity of the active material 1 falls in a range of 290 to 350 mAh/g, and a gram capacity of the active material 2 falls in a range of 350 to 368 mAh/g. A ratio ? of the powder OI value between the active material 1 and the active material 2 falls in a range of 2.00 to 6.25.

Abstract: A battery pack may include a first battery cell type and a second battery cell type, wherein the first battery cell type may include n first battery cells, and the second battery cell type may include m second battery cells, with n and m being each independently selected from an integer of 1 or more, wherein the second battery cell may have a discharge power at ?20° C. greater than that of the first battery cell, the difference in discharge power at ?20° C. between the second battery cells and the first battery cells being ?10 W; the percentage by number of the first battery cells in the battery cells comprised in area A may be 20% to 100%, and the percentage by number of the second battery cells in the battery cells comprised in the area B may be 5% to 100%.

Abstract: The lithium film forming mechanism includes a first separator providing mechanism, a second separator providing mechanism, a lubricating substance applying mechanism, a lithium ribbon providing mechanism and two rollers; the first separator providing mechanism provides a first separator for the two rollers; the second separator providing mechanism provides a second separator for the two rollers; the lithium ribbon providing mechanism locates a lithium ribbon between the first separator and the second separator and provides the lithium ribbon for the two rollers; the lubricating substance applying mechanism applies lubricating substances to surfaces, facing the lithium ribbon, of the first separator and/or the second separator before entering the space between the two rollers; and the two rollers roll the first separator, the lithium ribbon and the second separator, to roll the lithium ribbon into lithium foil and make the lithium foil adhere to the second separator to form the lithium film.

Abstract: The embodiments of the present application provide a low-voltage power transmission system, a DCDC converter and a control method, a device and a medium, relating to the field of battery power. The control method includes: acquiring a charging signal; acquiring a vehicle start signal; acquiring an enabling signal; when each of the charging signal, the vehicle activating start signal, and the enabling signal is at a low level, and no communication message sent by a battery management system (BMS) is received, determining that a vehicle is in a power-off state and enters a sleep mode; when a duration of the sleep mode reaches a preset duration, performing self-awakening, and outputting, to the BMS, an awakening signal for awakening the BMS and making the BMS enter a working mode.

Abstract: Embodiments of the present application provide a battery, a power consumption apparatus, and a method and an apparatus for preparing a battery. The battery includes a plurality of battery cells arranged in a first direction. Each battery cell is provided with a pressure relief mechanism, configured to be actuated when internal pressure or temperature of the battery cell reaches a threshold value, to relieve the internal pressure. The battery further includes a protecting plate, the protecting plate is attached to a surface of the battery cells arranged in the first direction. The protecting plate is provided with a plurality of openings, and an opening is provided corresponding to the pressure relief mechanism of a battery, to expose the pressure relief mechanism via the opening. Two openings corresponding to pressure relief mechanisms of two adjacent battery cells are provided in a staggered manner in the first direction.

Abstract: A positioning member, a winding device for an electrode assembly, and a battery manufacturing device are disclosed in the present application. The positioning member may be used for being inserted into a first groove on an outer peripheral surface of the winding pin, which may be used for winding an electrode sheet and a separator. The positioning member may be provided with a second groove, which may be configured for a clamping pin to insert so as to position relative positions of the first groove and the clamping pin.

Abstract: A riveting assembly, a battery, electrical equipment, and an assembling method and equipment of the riveting assembly are described. The riveting assembly includes a first member, a second member and a riveting piece; the first member has a first connecting portion; the second member has a first hollow portion, and the second member has a first wall and a second wall opposed to each other; a rivet body of the riveting piece is configured to sequentially pass through the first wall, the first hollow portion, the second wall and the first connecting portion; in an axial direction of the rivet body, the rivet body has a first weak portion and a first limiting portion which are disposed at intervals, and the first weak portion protrudes in a radial direction of the rivet body when the rivet body is axially stressed to form a second limiting portion.

Abstract: Disclosed is a coating die and a battery electrode plate coating apparatus. The coating die is configured to apply a slurry on a substrate. The coating die includes a die body and a rectifying mechanism. The die body is provided with a discharging outlet. The rectifying mechanism is provided with a feeding inlet and a branching channel, where the feeding inlet is configured for injecting the slurry, the branching channel communicates with the feeding inlet and is provided with multiple branching openings, and the rectifying mechanism is exposed to the outside of the die body and is detachably connected to the die body, so that the multiple branching openings communicate with the discharging outlet.

Abstract: Embodiments of the present application provide a feeding device for loading a material into a container, which relates to the technical field of product assembly. The feeding device is configured to load a material into a container having an opening. The feeding device includes a pressing unit. The pressing unit includes a pressing member having a pressing plane, and a driving member configured to drive the pressing member to move cyclically along a closed track. The closed track includes a first planar track segment, and when the pressing member moves along the first planar track segment, the pressing plane forms surface contact with the material and keeps extending in a material loading direction, the material loading direction being a movement direction of the material relative to the container. The feeding device can reduce damage to the material during a feeding process.

Abstract: This application relates to an adapter assembly, a battery cell, a battery, and an electrical device. The adapter assembly includes: a current collecting component, including a terminal connecting portion, a fuse portion, and a tab connecting portion, where the fuse portion is connected between the terminal connecting portion and the tab connecting portion; and an insulation protection component, wrapping the fuse portion. The insulation protection component is configured to keep a fixed relative position between the terminal connecting portion and the tab connecting portion when the fuse portion is blown. A first mating portion is formed on at least one surface of the fuse portion in a thickness direction. At least a part of one of the first mating portion or the insulation protection component protrudes along the thickness direction and is embedded inside the other of the first mating portion or the insulation protection component.

Abstract: This application discloses a battery tray and a battery formation and capacity-grading device. The battery tray includes a fixed frame; and a fixed component located in the fixed frame, the fixed component including a first limiting assembly and a second limiting assembly, the first limiting assembly including at least two first limiting members which extend along a first direction respectively and are spaced apart along a second direction which intersects the first direction, the second limiting assembly being connected to the first limiting assembly and including at least two second limiting members which are disposed along the first direction and are connected with the first limiting members to form a limiting space for accommodating a battery cell, and the second limiting members being movably disposed along the first limiting members in the first direction.

Abstract: Embodiments relate to the technical field of waste collection, in particular to waste collection equipment, which includes a temporary storage tank, a pressing tank and a pressing mechanism; the temporary storage tank is configured for receiving and temporarily storing wastes produced by die cutting equipment; the pressing tank is configured for carrying the wastes in the temporary storage tank; the pressing mechanism is configured for compressing the wastes in the pressing tank; the temporary storage tank is provided with a first blanking port, which is configured for communicating the temporary storage tank with the pressing tank; the first blanking port is provided with a first valve; and the first valve is configured for opening or closing the first blanking port to control whether the temporary storage tank discharges the wastes.

Abstract: An electrochemical energy storage apparatus and a device are provided. The electrochemical energy storage apparatus includes a positive electrode plate, a negative electrode plate, a separator, and an electrolyte, where the positive electrode plate includes a positive electrode current collector, a positive electrode active substance layer disposed on at least one surface of the positive electrode current collector, and a safety layer disposed between the positive electrode active substance layer and the positive electrode current collector; the positive electrode active substance layer includes a positive electrode active substance; the safety layer includes a binding substance, a conductive substance, and an overcharge sensitive substance; the overcharge sensitive substance is a polymer containing monosaccharide structural units and containing at least one of carbonate groups or phosphate groups; the electrolyte includes a solvent and an electrolytic salt; and the solvent includes a carbonate-based solvent.

Abstract: The present application provides an AGV scheduling control system and method. The AGV scheduling control system includes: an AGV scheduling controller configured to generate an AGV scheduling instruction; an AGV configured to execute a task according to the AGV scheduling instruction; and a server that is communicatively coupled with the AGV scheduling controller and the AGV respectively, the server being configured to transfer messages between the AGV scheduling controller and the AGV, and provide adaptation to AGVs from different manufacturers. The AGV scheduling control system in the present application further includes a virtual AGV scheduling controller and a virtual AGV that serve as digital twins of the AGV scheduling controller and the AGV, and the programs used to control the virtual entity and the real entity are equivalently exchangeable.

Abstract: An electrolyte containing a solvent including at least one compounds of formula I, wherein A1 is an oxygen atom or a single bond, A2 is a single bond or CHR4, R1 and R2 are each independently a hydrogen atom, C1-6 alkyls or a C1-6 fluoroalkyls, R3 and R4 are each independently a hydrogen atom, a fluorine atom, C1-6 alkyls or C1-6 fluoroalkyls, A1 and A2 cannot both be single bonds simultaneously, and only one of R1 to R4 includes a fluorine atom is described. The electrolyte can make a metal negative electrode secondary battery have good cycling performance and good discharge capacity retention at low temperature.