CATL Patente

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The present application provides a sampling apparatus (30), a battery (100) and an electrical device. The sampling apparatus (30) comprises a circuit component (31), a first connection element (32) and a second connection element (33). The first connection element (32) and the second connection element (33) are electrically connected to the circuit component (31). At least a part of the second connection element (33) and at least a part of the first connection element (32) are stacked along a thickness direction of the circuit component (31).

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The present application provides a negative electrode sheet, a secondary battery, and an electric device. The negative electrode sheet includes a negative electrode current collector, a buffer layer, and an active layer, where the buffer layer is located between the negative electrode current collector and the active layer; the buffer layer includes a first binder; and an active material of the active layer includes silicon-carbon composite particles, and the silicon-carbon composite particles include a porous carbon material and a silicon material located in pores of the porous carbon material. The introduction of the silicon-carbon composite particles in the active layer can provide a good basis for improving the energy density of a battery. In addition, the buffer layer including the first binder is disposed between the negative electrode current collector and the active layer, so that an acting force of the silicon-carbon composite particles on the negative electrode current collector in a cold pressing process can be buffered, a risk of damage to the negative electrode current collector caused by the silicon-carbon composite particles can be reduced, and then the negative electrode current collector can maintain good structural stability, thereby improving cycle performance of the battery.

The present application is applicable to the technical field of power batteries, and provides a battery cell, a battery, and a power consuming apparatus. The battery cell (100) includes: an adapter (10), where a welding point (20) is formed on the adapter in a protruding manner; and a covering member (30), connected to the adapter and covering the welding point, where an accommodating cavity (40) used to accommodate the welding point is formed between the covering member and the adapter, and at least a portion of the welding point is accommodated in the accommodating cavity. In the battery cell provided in the present application, the accommodating cavity is provided between the covering member and the adapter, and at least a portion of the welding point is accommodated in the accommodating cavity. Accommodating the welding point in the accommodating cavity enables better contact between the covering member and the adapter around the welding point, and reduces the occurrence of suspension of the covering member. Accordingly, a negative impact of the welding point on the covering member is reduced, so that the covering member can be better adhered to the adapter, alleviating the problem of loosening or detaching of the covering member.

The present disclosure relates to the technical field of batteries, and provides a bottom support apparatus, a grabbing device, a production line, and a method for replacing the type of a bottom support apparatus. The bottom support apparatus comprises a plurality of mounting units, a bottom support set, and a plurality of type-replacing mechanisms. Each mounting unit comprises two mounting platforms spaced apart along a first direction, and the plurality of mounting units are spaced apart along a second direction. The bottom support set comprises a plurality of bottom support boards. The plurality of bottom support boards are spaced apart along the second direction, and each bottom support board corresponds to the two mounting platforms of one of the mounting units. Two ends of each bottom support board along the first direction are each detachably connected to one of the type-replacing mechanisms. The type-replacing mechanisms are detachably connected to the mounting platforms. The first direction is perpendicular to the second direction.

A pallet, a battery production line, and a control method are provided. The pallet includes a pallet body, at least two first position-limiting assemblies, and a second position-limiting assembly. The pallet body includes a placement region configured to place a battery cell. One part of the first position-limiting assemblies is disposed on one side of the placement region along a first direction, and the other part of the first position-limiting assemblies is disposed on the other side. The first position-limiting assemblies include a first position-limiting block that is movable along the first direction. The first position-limiting block is provided with a first position-limiting surface and a second position-limiting surface. The second position-limiting assembly is disposed on a side of the placement region along a second direction. The second position-limiting assembly includes a second position-limiting block that is movable along the second direction. The second position-limiting block is provided with a third position-limiting surface. The second position-limiting surface and the third position-limiting surface are respectively located on opposite sides of the placement region along the second direction.

This application relates to the field of battery technologies and provides a grabbing apparatus, a material grabbing robot, a battery production line, and a material grabbing control method. The grabbing apparatus includes a mounting frame, a gripper mechanism, and a driving member. The gripper mechanism includes a first position finding member, a second position finding member, a first clamping jaw, a second clamping jaw, and a movable component. The first clamping jaw is arranged on the mounting frame, the second clamping jaw is movably arranged on the movable component, the first position finding member is arranged on the movable component, the second position finding member is arranged on the second clamping jaw, and the second position finding member has a staggered position and a detection position. When the second position finding member is located at one of the staggered position and the detection position, the second clamping jaw and the first clamping jaw clamp a battery cell. When the second position finding member is located at the other of the staggered position and the detection position, the second clamping jaw and the first clamping jaw release the battery cell. The driving member is arranged on the mounting frame and is configured to drive the movable component to move, so that the first clamping jaw and the second clamping jaw clamp or release the battery cell. The grabbing apparatus can grab battery cells of different sizes.

A boxing device, a detection mechanism, a battery production line, and a boxing method. A boxing device (100) is configured to box a battery module. The boxing device includes a first conveying apparatus (10), a boxing channel (30), and a detection mechanism (20). The first conveying apparatus is configured to convey a battery module to move along a first direction. The boxing channel is arranged on a side of the first conveying apparatus. The battery module on the first conveying apparatus is movable to the boxing channel for boxing. The detection mechanism is configured to detect the battery module located in the boxing channel, to match the battery module with a box (200) of a battery.

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Disclosed in the present disclosure are an adaptation control method and system. The method comprises: when a trolley to be tested reaches a preset position, acquiring the current blueprint information of said trolley, wherein a tray is placed on the upper surface of said trolley, and the tray is used for bearing a component to be transferred; determining target blueprint information of said trolley, wherein the target blueprint information has an association relationship with specification parameters of said component; and when the current blueprint information is inconsistent with the target blueprint information, controlling at least one limiting block on the tray to perform position adjustment, such that the tray adapts to said component, and thus said component can be placed on the tray.

Disclosed in the present disclosure are a feeding apparatus, a feeding method, and a battery assembly line. The feeding apparatus comprises a material rack, a workpiece conveyor line, and a transfer mechanism, wherein the material rack is provided with at least two layers of bearing portions, which are arranged in sequence at intervals in a first direction, the bearing portions on the same layer define a workpiece bearing space for accommodating a workpiece, and the bearing portions can perform reciprocating motion in the first direction along with the material rack; the workpiece conveyor line is used for conveying the workpiece, the conveying path of the workpiece conveyor line extending in a second direction that intersects with the first direction; and the transfer mechanism is configured to enter and exit the workpiece bearing space, the transfer mechanism being used for transferring the workpiece from the workpiece bearing space to the conveying path of the workpiece conveyor line.

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Embodiments of the present disclosure provide a battery stack method and system. The battery stack system at least includes a controller, a base support, and a stacking table and a grabbing apparatus that are disposed on the base support. The battery stack method includes: in response to that a tray on the stacking table is in place, determining battery cell information stored in the tray; determining battery cell information of a target battery cell on a battery cell conveying line; and in the case that the battery cell information stored in the tray matches the battery cell information of the target battery cell, controlling the grabbing apparatus to grab the target battery cell and place the target battery cell in the tray.

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Embodiments of the present disclosure provide a tray device, a battery production line, and a replacement method for a pressurizing member of a tray device. The tray device comprises a tray and at least one pressurizing mechanism arranged on the tray; the pressurizing mechanism comprises end plate pressurizing tools arranged in pairs; the end plate pressurizing tools arranged in pairs are used for pressurizing battery modules in a first direction; at least one end plate pressurizing tool comprises a mounting seat and a pressurizing member; the pressurizing member is used for being in contact with an end plate of each battery module; an insertion slot is formed in one of the mounting seat and the pressurizing member, and the other of the mounting seat and the pressurizing member is provided with an insertion member, the insertion member is fitted into the insertion slot so as to detachably mount the pressurizing member onto the mounting seat; the insertion member is fitted into the insertion slot in a second direction of the tray device, wherein the second direction is perpendicular to the first direction; moreover, the pressurizing member can move upwards under the action of external force to be separated from the mounting seat.

Provided are a die cutting and slitting system, and a visual inspection method for die cutting and slitting. The die cutting and slitting system comprises: an inner electrode-sheet inspection mechanism (1004), an outer electrode-sheet inspection mechanism (1005), a conveying apparatus and an upper computer, wherein the inner electrode-sheet inspection mechanism (1004) acquires first image information, the outer electrode-sheet inspection mechanism (1005) acquires second image information, and the upper computer performs quality inspection on the basis of the first image information and the second image information. Inspections are respectively performed on inner and outer electrode sheets on the basis of an inner inspection mechanism and an outer inspection mechanism, such that the product quality of electrode sheets is confirmed by means of two paths of electrode sheet images, thereby effectively increasing the yield of a die cutting stage in a cutting process, and effectively screening out electrode sheets with poor quality.

Disclosed in embodiments of the present disclosure are a battery cell identification method and system. The method is applied to a battery cell identification system, and the identification system comprises: a camera, an industrial personal computer, and a production execution system. The method comprises: when the camera reaches a preset photography position, the camera photographs a battery cell to be identified, to obtain image data, and sends the image data to the industrial personal computer; the industrial personal computer performs image processing on the image data to obtain an identifier of said battery cell, and sends the identifier to the production execution system; and the production execution system determines an identification result of said battery cell on the basis of production information in the identifier.

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Provided are an electrode assembly (20), a battery cell (100), a battery (200), and an electrical device (1000). The electrode assembly (20) includes a first electrode plate (21), a second electrode plate (22), a first separator (23), and a second separator (24); the first separator (23), the first electrode plate (21), the second separator (23), and the second electrode plate (22) are sequentially stacked and wound to form an integrated body; the second electrode plate (22) and the first electrode plate (21) have opposite polarities; the first electrode plate (21) has a length end fixedly connected to at least one of the first separator (23) and the second separator (24); both the first separator (23) and the second separator (23) have a length end exceeding the length end of the first electrode plate (21) and fixedly connected to each other.

Disclosed in the present disclosure are a cell gripping system, a control method therefor, and a production line module. The control method includes: sending, by a robot, a first photographing request to a stand camera; obtaining, by the stand camera in response to the first photographing request, first image data containing to-be-gripped cells, and determining a gripping position for a target column of cells among the to-be-gripped cells and a photographing position for the target column of cells; moving, by the robot, to the photographing position and sending a second photographing request to a gripper camera, to obtain second image data; determining, based on the second image data, arrangement parameters for the target column of cells, and sending the arrangement parameters to the robot; and moving, by the robot, to the gripping position, adjusting a gripping angle based on the arrangement parameters, and controlling a cell gripping apparatus to firmly clamp the target column of cells, to complete gripping.

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