Manufacture method of lithium-ion battery pole piece

Abstract

The invention relates to a manufacture method of a lithium-ion battery pole piece, which aims to provide a new lithium-ion battery pole piece tabletting method so as to be suitable for pressing the pole pieces of higher areal density. The manufacture method has the following technical scheme of adopting an intermittent plane pressing mode different from a rolling mode. The pole pieces of higher areal density can be compacted with the manufacture method.

Description

technical field [0001] The invention relates to a method for manufacturing a pole piece of a lithium ion battery. Background technique [0002] As an efficient, green and environmentally friendly new energy source, lithium-ion batteries have been widely used in digital, communication, tools, transportation and other fields to provide portable power for products in these fields. With the further intensification of the energy and environmental crisis, the development of electric vehicles has been paid more and more attention, and the advantages of lithium-ion batteries as power batteries for electric vehicles are unparalleled. [0003] The production process of lithium-ion batteries includes coating, tableting and other processes. The present tabletting method adopts the mode of rolling to carry out. This is generally applicable, but in some occasions where the pole piece is expected to have a higher coating surface density, such a tableting method will cause the problem of ...

AI Technical Summary

Problems solved by technology

This is generally applicable, but in some occasions where the pole piece is expected to have a higher coating surface density, such a tableting method will cause the problem of material loss; in addition, the current rolling method is also It will cause problems such as pole piece deformation