Lithium ion battery hot-press formation clamp

Abstract

The invention belongs to the technical field of lithium ion battery manufacturing and in particular relates to a lithium ion battery clamp. A lithium ion battery hot-press formation clamp comprises a fixed seat, a power device, a plurality of laminated plates, a heating device, a formation device and a lithium battery, wherein the power device is arranged on the fixed seat; the heating device and the formation device are arranged on the laminated plates; a lithium ion battery is arranged between every two of the laminated plates for formation; the power device pressurizes the laminated plates and keeps the pressure; an included angle formed between the contact surface of each laminated plate and the lithium ion battery and the horizontal plane is 90+ / -0.5 degrees, and preferably 90 degrees. Compared with the prior art, the lithium ion battery hot-press formation clamp has the advantages that the laminated plates are arranged vertically, so that disposable material feeding of the lithium ion batteries can be realized, the material feeding time is shortened, and the production period of the batteries is shortened; furthermore, the automation degree of a battery production process can be increased; meanwhile, the formation clamp with the structure cannot be limited by the height of a formation cabinet, so that the number of the laminated plates can be increased to the maximum extent, and the number of the lithium ion batteries subjected to one-step hot-press formation is increased.

Description

technical field [0001] The invention belongs to the technical field of lithium-ion battery manufacturing equipment, and in particular relates to a lithium-ion battery hot-press forming jig. Background technique [0002] In the production process of flexible packaging lithium-ion batteries, the battery needs to be formed to activate the active material inside, and the battery should be hot and cold pressed to maintain a good appearance. [0003] In the existing flexible packaging lithium-ion battery production process, the battery formation process uses a vertical formation fixture, and the batteries need to be placed on the laminate layer by layer, which cannot be fed at one time, which takes a long time, and the vertical formation The fixture is limited by the height of the formation cabinet, resulting in a limited number of batteries formed at one time; at the same time, the existing formation fixture uses a single screw to apply force to the pressure plate, and due to the...

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Problems solved by technology

[0003] In the existing flexible packaging lithium-ion battery production process, the battery formation process uses a vertical formation fixture, and the batteries need to be placed on the laminate layer by layer, which cannot be fed at one time, which takes a long time, and the vertical formation The fixture is limited by the height of the formation cabinet, resulting in a limited number of batteries formed at one time; at the same time, the existing formation fixture uses a single screw to apply force to the pressure plate, and due to the existence of the battery air bag, the screw needs to exert pressure on one side of the pressure plate. In order to ensure that the force of the screw is applied to the middle part of the battery body, this will cause the screw to fail to push the pressure plate to move in parallel, resulting in uneven thickness of the battery and certain appearance defects, which will eventually have a certain impact on the performance of the battery; and The formation of batteries needs to be carried out at a certain temperature and pressure, and the hot pressing of batteries also requires a certain temperature and pressure. The formation and hot pressing processes of existing batteries are completed in different equipment and fixtures, resulting in the pressure and pressure of the two processes. Energy can not be rationally used and wasted

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