Abstract: A wound electrode assembly, a battery cell, a battery, a power consuming device, and a winding apparatus are disclosed. The wound electrode assembly includes: an electrode plate; and a separator attached to the electrode plate and located in a bent region of the electrode plate, the separator losing viscosity between the separator and the electrode plate within a preset time. With the solution described hereine performance of the battery can be improved.

Abstract: Disclosed are an electrode, a preparation method therefor, a battery, and a power consuming device. The electrode according to an embodiment of the present application comprises a current collector and active layers bonded to the current collector, wherein the active layers include a first active layer and a second active layer, the first active layer is bonded to the current collector, the second active layer is bonded to the surface of the first active layer that faces away from the current collector, and the second active layer has a porosity lager than that of the first active layer. The electrode has a high energy density and structural stability and an excellent cycling performance, resulting in a safe battery. The method for preparing an electrode as disclosed results in an electrode with a stable structure and electrochemical performance, and a high efficiency, while saving the production cost.

Abstract: The present application provides a negative electrode plate and the method for preparing the same, a secondary battery, and an electrical device. The negative electrode plate includes a negative electrode current collector, and a negative electrode film layer arranged on at least one surface of the negative electrode current collector, wherein the negative electrode film layer comprises infiltrating cavity which opens in a direction away from the negative electrode current collector and extend in a first direction; and wherein the negative electrode film layer has a dimension in the first direction denoted as A in ?m, the infiltrating cavity has a dimension in the first direction denoted as A1 in ?m, and the negative electrode plate satisfies 0.1?A1/A?1, and optionally, 0.2?A1/A?1.

Abstract: The present application relates to a battery pressurizing device, the battery pressurizing device comprising: a carrying mechanism for carrying a battery; and a pressurizing mechanism movable relative to the carrying mechanism, wherein the pressurizing mechanism includes a mounting member and a pressurizing member, the pressurizing member is arranged on the mounting member and is rotatable relative to the mounting member, the pressurizing member is used to abut against the battery along a first direction to apply pressure on the battery. The battery pressurizing device can flatten the surface of the battery and also prevent the protrusions of battery cells and/or the damages of battery terminals when pressurizing in other directions.

Abstract: A power storage device includes: a stack formed of a plurality of battery cells arrayed in an X direction (array direction); a smoke exhaust duct placed on the stack and extending in the X direction; a bus bar module including a plurality of bus bars connected to the stack; and a sponge (elastic body) placed on the smoke exhaust duct. The bus bar module covers at least a part of the smoke exhaust duct. The sponge is placed between the bus bar module and the smoke exhaust duct.

Abstract: An electrode plate manufacturing device and an electrode plate manufacturing method are provided. The electrode plate manufacturing device includes an extrusion mechanism, a film forming mechanism and a combination mechanism. The extrusion mechanism is used to extrude out the active material slurry to form a blank. The film forming mechanism is provided downstream of the extrusion mechanism, and the film forming mechanism is used to thin the blank to form a film. The combination mechanism is provided downstream of the film forming mechanism, and the combination mechanism is used to combine the film and a substrate to form an electrode plate. The electrode plate manufacturing device extrudes, through the extrusion mechanism, the active material slurry out to form a blank, so that the powder and particles in the active material slurry may be mixed evenly. The blank is formed into a film through the film forming mechanism.

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: 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 disclosure provides a control method for an adhesive applying device. The adhesive applying device includes an adhesive dispensing module, a first moving mechanism and a testing module. The control method includes performing a testing inspection operation, which includes: moving, by the first moving mechanism, an adhesive nozzle in the adhesive dispensing module to a first position aligned with the testing module, instructing the adhesive dispensing module to discharge a first amount of adhesive from the adhesive nozzle, receiving a second amount from the testing module, where the second amount is obtained based on measuring the received adhesive using the testing module, and determining that the adhesive applying device passes the testing inspection in the case where a deviation of the second amount relative to the first amount does not exceed a first threshold.

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: The present application relates to a detection mechanism and a battery production line. The detection mechanism includes a conveying unit, configured to convey the device to be detected; a first detection unit, configured to detect the temperature of the device to be detected; and a trigger unit, configured to detect the distance between the first detection unit and the device to be detected. When the distance between the first detection unit and the device to be detected is less than a preset distance value, the trigger unit controls the conveying unit to stop conveying. The detection mechanism and the battery production line in the embodiments of the present application can ameliorate the problem of poor universality.

Abstract: A pallet, a battery processing device, and a battery production line is disclosed. The battery production line includes the battery processing device, and the battery processing device includes the pallet. The pallet includes a bottom support and a limiting structure. The limiting structure is disposed on the bottom support and encloses a plurality of limiting spaces; the limiting spaces are located on a side of the bottom support in a first direction (Z) and are used for limiting batteries; and the plurality of limiting spaces have different projections in the first direction (Z). In this way, the plurality of limiting spaces can be used for limiting batteries of a plurality of different models separately, that is, the pallet can be applicable to batteries of a plurality of different models, improving the compatibility and versatility of the pallet.

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 relates to the technical field of lower box body inspection, and in particular, discloses a visual inspection apparatus and an inspection method thereof, and an inspection system and an inspection method thereof. The visual inspection apparatus includes an image acquisition apparatus, a drive apparatus, and a controller. The drive apparatus is drivingly connected to the image acquisition apparatus for driving the image acquisition apparatus to reciprocate in a length direction of a gluing region of a lower box body and acquire an inspection image of the entire gluing region. The controller is electrically connected to the image acquisition apparatus and the drive apparatus to control the acquisition of the image acquisition apparatus and the operation of the drive apparatus.

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: A battery heating system includes a switch assembly, and the switch assembly includes a first switch, a second switch, and a third switch. When the first switch is turned on and the second switch and the third switch are turned off, the first battery group and the second battery group are arranged in series connection and connected to a charging and discharging apparatus, for charging or discharging the first battery group and the second battery group after being connected in series. When the first switch is turned off and the second switch and the third switch are turned on, the first battery group and the second battery group are respectively connected to a battery heating apparatus to form a first loop and a second loop, and the first loop and the second loop are used for heating the first battery group and the second battery group.

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 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: 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 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.