Abstract: This application provides a module tray and a battery production device. The module tray includes: a tray body configured to support a battery module; two clamping plates extending along a first direction respectively; and a clamping mechanism configured to support and drive the two clamping plates to cooperatively clamp and fix the battery module; where the clamping mechanism is mounted on the tray body, and the clamping plate is mounted on the clamping mechanism. The tray body is provided for supporting the battery module, and the clamping mechanism is provided to push the two clamping plates to cooperatively clamp and fix two opposite sides of the battery module on the tray body, so that the shake of the battery module can be alleviated during movement, and the displacement of battery cells in the battery module can also be reduced, facilitating the subsequent processing and manufacturing.

Abstract: Embodiments of the present application provide a method for detecting a power of a welding laser light and a laser welding system. The method for detecting a power of a welding laser light includes obtaining at least one power sample, wherein the power sample is obtained by sampling, every preset time period, the power of the welding laser light emitted by a laser. The method may further include acquiring a plurality of power samples within a preset power range in the at least one power sample. The method may further include processing the plurality of power samples within the preset power range to obtain power detection results.

Abstract: A battery cell, a battery, an electricity consuming device and a preparation method are provided. The battery cell includes an electrode assembly and an adapter. The electrode assembly includes at least two electrode bodies arranged side by side along a first direction and tabs extending from the electrode bodies. The tab includes an extension portion and a bent portion, the extension portion extends from the electrode body along a second direction, the bent portion is connected with an end of the extension portion away from the electrode body and extends along a first direction, an adapter is connected with the tabs, the current of the electrode body is conducted by the adapter to the outside, a bending arrangement of the tabs enhances their structural strength, avoiding the problem of degradation in internal electrical connection performance of the battery due to damage to the tabs by an external force.

Abstract: The present application discloses a gripping mechanism, a loading device and a loading control method. The gripping mechanism includes a base body and a first gripping assembly. A clamping zone is configured on one side of the base body. The first gripping assembly includes a first jaw and a second jaw, with the first jaw being arranged on one of two opposite sides of the clamping zone, and the second jaw being arranged on the other side; wherein at least one of the first jaw and the second jaw is movably connected to the base body, such that a spacing between the first jaw and the second jaw is adjustable, so that the requirements for gripping plates of different specifications and sizes can be met. That is, the gripping mechanism according to embodiments of the present application can be compatible with plates of different specifications and sizes.

Abstract: This application provides a test apparatus and a battery production line. The test apparatus includes a fixing mechanism and a plurality of test probe mechanisms. The test probe mechanisms are slidably connected to the fixing mechanism side by side along a first direction. In the test apparatus provided in embodiments of this application, the fixing mechanism is provided with a plurality of test probe mechanisms, and the test probe mechanisms can slide along the first direction relative to the fixing mechanism. In this way, distances between the test probe mechanisms can be adaptively adjusted according to the dimensions of to-be-tested battery cells, that is, the distances can quickly respond and adapt to changes in dimensions of incoming battery cells, so that the test efficiency can be significantly improved.

Abstract: The present application provides a battery cell, a battery and an electrical apparatus, which belong to the technical field of batteries. The battery cell includes a case and at least three electrode assemblies; a cavity is defined in the case, the cavity includes a first region and a second region, the first region is closer to the case than the second region, a polarization parameter of a single electrode assembly located in the first region is PA, a polarization parameter of a single electrode assembly located in the second region is PB, and PA<PB.

Abstract: A battery cell includes a housing, an electrode assembly, and a sealing member. The housing is provided with an electrolyte injection hole for injecting an electrolyte. The electrode assembly is accommodated in the housing. The sealing member includes a main body portion, a transition portion surrounding an outer side of the main body portion, and a connecting portion surrounding an outer side of the transition portion. The connecting portion is located on a side of the housing back away from the electrode assembly, at least part of the main body portion protrudes from a first surface of the connecting portion facing the housing and is accommodated in the electrolyte injection hole, and the connecting portion is connected to the housing to seal the electrolyte injection hole.

Abstract: Disclosed are a method and an apparatus for detecting a tab. The method includes: determining that a first tab of a first electrode plate in a plurality of electrode plates of a first electrode assembly reaches a first position in an image collection area, wherein the plurality of electrode plates move toward the image collection area along a vertical direction; and collecting image information of the first tab, wherein the image information of the first tab is used to determine a state of the first tab. The tab detection method provided is able to completely detect the size and shape of the tab while avoiding adverse effects of the detection process on the state of the tab, so that the detection efficiency can be improved while improving the detection effect.

Abstract: A battery cell, a battery and an electricity-consuming device are provided by the present application. The battery cell includes a casing and a connecting terminal. The casing includes a mounting hole. The connecting terminal is at least partially arranged in the mounting hole, insulated from the casing, and configured for information exchange between an interior and an exterior of the battery cell.

Abstract: The present application provides an adapting sheet, a battery cell, a battery, and an electric apparatus. The adapting sheet includes a pole connection portion, a tab connection portion, and a bending portion. In a first direction, two sides of the pole connection portion are respectively connected to the tab connection portion through the bending portion. In a second direction, a height difference is formed between the pole connection portion and the tab connection portion, and the first direction is non-parallel to the second direction. The adapting sheet in the present disclosure is applied in the battery cell, so that the tab may be disposed at both sides of the pole in a width direction of the cell.

Abstract: A necking-flanging roller and a necking-flanging mechanism are disclosed. The necking-flanging roller is used to form the necking portion and the flanging portion on the housing, including a roller body; and a limiting portion, arranged along the axial direction of the roller body and oppositely to the roller body, wherein a gap is formed between the roller body and the limiting portion, and the gap is provided for the free end of the flanging portion to insert therein and restricts the free end from bending and deforming. The technical solution provided in the present disclosure can improve the quality of the battery.

Abstract: A battery, a power consumption apparatus, and a method for producing a battery are provided. The battery includes: a battery module including a first battery cell and a second battery cell that are disposed in a stacked manner along a first direction, where the first battery cell and the second battery cell are located at a first end of the battery module in a second direction, a first electrode output part of the first battery cell is connected to a second electrode output part of the second battery cell, the first direction is a thickness direction of the battery, and the second direction is a length direction of the battery; and a supporting member disposed in a first accommodating space enclosed by a first electrode output part and a second electrode output part, and configured to support the first electrode output part and the second electrode output part.

Abstract: This application discloses a battery cell top cover, a battery cell, a battery, an electric device, and an electrolyte injection nozzle. The battery cell top cover includes a top cover body. The top cover body is provided with an electrolyte injection hole. The electrolyte injection hole includes a first hole section, a second hole section, and a third hole section that are sequentially arranged and communicate with each other in a thickness direction of the top cover body. A first pressing surface is formed between an end of the second hole section facing away from the first hole section and the third hole section. The first pressing surface can abut against a second pressing surface of the electrolyte injection nozzle to implement surface sealing.

Abstract: A battery cell includes a shell and two electrode assemblies located in the shell. Each electrode assembly includes a main body portion and a first tab and a second tab extending from the main body portion and having opposite polarities. The battery cell includes a first side and a second side oppositely arranged in a height direction of the battery cell. The main body portion of the first electrode assembly has the first tab and the second tab extending from the first side and the first tab extending from the second side. The main body portion of the second electrode assembly has the second tab extending from the first side and the first tab extending from the second side. The two second tabs located on the first side are electrically connected to each other, and the two first tabs located on the second side are electrically connected to each other.

Abstract: This application provides a lithium-nickel-manganese-containing composite oxide, a preparation method thereof, and a positive electrode plate, secondary battery, and electric apparatus containing the same. The lithium-nickel-manganese-containing composite oxide has a core-shell structure and includes a core and a shell enveloping surface of the core, where the core includes Lix(NiyMn2-y)1-mMmO4. M includes one or more selected from Mg, elements from group IVB to group VIB, elements from group IIIA to group VA, and lanthanide elements, where 0.95?x?1.10, 0.40?y?0.60, and 0.001?m?0.015. The shell includes lithium aluminum phosphate and optionally includes lithium aluminum phosphate and aluminum phosphate.

Abstract: This application provides a battery box, a battery, and an electric device. The battery box includes a bottom plate and a frame. Each of two ends of the frame is provided with an opening, the opening at one end of the frame is connected to an edge of the bottom plate to form an accommodating space, and a light energy absorber is arranged on a side of the bottom plate in the accommodating space facing the accommodating space. According to the battery box provided in this application, in a case that an impact or a collision occurs at the bottom of the battery box, the light energy absorber can absorb the impact energy produced by the impact or collision, thereby greatly reducing the vibration, extrusion, and collision intensity of a battery module in the battery box. The light energy absorber provides buffering and protection for the battery module.

Abstract: A battery box upper cover including a top wall, a side wall, and an edge portion is described. A first end of the side wall is connected to the top wall, an opening of the battery box upper cover is formed at a second end of the side wall, and the second end is connected to the edge portion. The edge portion extends along a first direction at the second end, the first direction being parallel to a plane on which the opening is located and away from the opening, a second surface of the edge portion is inclined toward the plane on which the opening is located along the first direction, and a first surface of the edge portion is away from the top wall relative to the second surface. Embodiments can solve the problem of insufficient safety performance of the battery.

Abstract: A feeding apparatus and a substrate processing device are provided. The feeding apparatus includes: a material conveying channel including a feeding inlet and a discharging outlet, where the feeding inlet is closer to a first end of the material conveying channel than the discharging outlet, and the discharging outlet is closer to a second end of the material conveying channel than the feeding inlet, the first end and the second end being two opposite ends of the material conveying channel; and a vibration generator disposed at the material conveying channel and configured to generate mechanical vibration to induce the mechanical vibration of the feeding apparatus, and a material entering the material conveying channel through the feeding inlet is conveyed to the discharging outlet under the action of the mechanical vibration and falls out through the discharging outlet under the action of gravity.

Abstract: An embodiment of the present application provides a battery cell, a battery and an electrical device. The battery cell includes: a case, which is a hollow structure having a first opening end; an end cover assembly for covering the first opening end; an electrode assembly accommodated in the case; and an insulating guard layer disposed between the electrode assembly and the case to wrap at least part of the electrode assembly, wherein the insulating guard layer includes a main body portion and a protrusion structure, the main body portion has a second opening end facing the first opening end, the protrusion structure is connected to the second opening end and extends toward the end cover assembly, and the protrusion structure is used for connecting with the end cover assembly.

Abstract: A battery balancing detection method, apparatus, an electronic device, and a storage medium, wherein the method comprises: performing negative pulse discharging on a battery in response to a battery balancing detection instruction; and determining an unbalancing degree of the battery based on electrical parameters of battery cells in the battery after discharging. The method can avoid detection errors brought about by DCR when detecting the unbalancing degree in the case where current exists when the power battery system is providing electric energy, and can take into account the detection of the unbalancing degree of the battery while detecting the SOH of the battery by means of negative pulses, which is conducive to the improvement of the energy utilization rate and the service life of the battery.