Lithium ion battery pole piece coating method and coating machine

A lithium ion battery and a manufacturing method technology are applied in the field of manufacturing lithium ion battery pole pieces, which can solve the problems of easy powder drop of pole pieces, poor thickness consistency of pole pieces, short circuit of batteries, etc., achieve good stability, improve production efficiency, Avoid the effect of spacing changes
CN100442575CActive Publication Date: 2008-12-10BAK INT TIANJIN +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BAK INT TIANJIN
Publication Date
2008-12-10

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Abstract

The invention discloses a lithium ion cell pole tip applying method, which arranges the dressing section and the dead section by the design parameter interval of the pole tip and puts foil bend to start continues applying on the width direction of the coating machine headstock to obtain the pole tip extended on the band direction of the dead margin area. The invention also provides a coating machine which can achieve the method.
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Description

【Technical field】

[0001] The invention relates to the field of manufacturing lithium ion batteries, in particular to a method for manufacturing pole pieces of lithium ion batteries. 【Background technique】

[0002] Since the concept of "rocking chair battery" (RCB) was proposed in 1980, Japan's Sony Corporation and Sanyo Corporation began practical research on lithium-ion secondary batteries in 1985 and 1988, respectively. With outstanding features such as large specific energy, small self-discharge, wide application temperature range, stable working voltage, and long storage life, all countries in the world are paying attention to the application of lithium-ion secondary batteries in the field of communications, portable electronic products, electric vehicles, and aerospace. The applications showed great interest and enthusiasm, and the performance and manufacturing process of lithium-ion secondary batteries were continuously explored and improved.

[0003] In recent years,...

Claims

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