Pole piece preparation method and device
A pole piece and metal electrode technology, which is applied in the field of battery pole piece processing, can solve the problems of inability to realize continuous cutting processing, high labor intensity, and insufficient production efficiency.
Pending Publication Date: 2021-04-16
深圳市泽诚自动化设备有限公司
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Problems solved by technology
Among them, manual cutting has the disadvantages of high labor intensity, high labor cost and low cutting efficiency, which is suitable for small-scale workshop production; at the same time, the existing cutting machine body is huge and takes up a lot of space, and the manufacturing cost is high, and most of them cannot To achieve continuous cutting processing, the production efficiency is not high enough
Method used
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[0049] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0050] One of the core ideas of the embodiment of the present invention is that both the pole piece feeding and the aluminum mesh belt use a servo motor to feed and unwind, and after the material is discharged, the deviation error of the incoming material is controlled by the deviation correction system to compensate, so as to ensure that the material passes through the roller . Use the encoder and counterweight to ensure the output speed. The incoming material is rolled to complete the winding of the PET (Polyethylene terephthalate, polyethylene terephthalate, commonly known as polyester resin) film on the upper and lower sides of the incoming material. The PET film is different from the unwinding structure, and is controlled by ...
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The embodiment of the invention provides a pole piece preparation method. The pole piece preparation method comprises the steps of S1, unwinding a metal electrode net winding tape and a material winding tape containing a PET film; S2, carrying out primary rolling on the metal electrode net winding tape and the material winding tape containing the PET film to obtain a primary electrode material tape and a PET film tape; S3, carrying out secondary rolling on the primary electrode material belt to obtain a secondary electrode material belt; S4, carrying out stroke deviation rectification on the secondary electrode material belt; S5, carrying out pole piece striping on the secondary electrode material belt to obtain striped pole piece belts; and S6, conducting pole piece cutting on the striped pole piece belts, and obtaining a finished pole piece. The pole piece preparation method is mainly suitable for production of battery pole pieces of different sizes and specifications, the problems of inconsistency of manual cutting and inconsistency of cutting lengths and shapes in production are mainly solved, meanwhile, continuous and efficient cutting is conducted on the battery pole pieces through cutting, and the battery cutting efficiency is improved. The problems of high defective rate and low production efficiency are solved.
Description
technical field [0001] The invention relates to the technical field of battery pole piece processing, in particular to a pole piece preparation method and a pole piece preparation device. Background technique [0002] Lithium-ion batteries have become one of the most widely used and researched secondary batteries in the world today because of their advantages such as high energy density, good cycle performance, low self-discharge rate, environmental protection and no pollution. At present, lithium-ion batteries have been successfully used in portable electronic devices such as mobile phones and notebook computers, and are gradually developing into fields such as electric vehicles, aerospace and energy storage systems. Therefore, with the advancement of technology, the demand for lithium-ion batteries is increasing day by day. [0003] Lithium batteries currently on the market are usually composed of positive and negative electrodes of different sizes. During production, it ...
Claims
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Login to View More IPC IPC(8): H01M10/0587H01M10/0525H01M4/04
CPCY02E60/10Y02P70/50
Inventor 梁山李雪何金成李建强
Owner 深圳市泽诚自动化设备有限公司