基本信息:
- 专利标题： 锂离子电池极片及其制备方法和锂离子电池
- 专利标题（英）：Lithium ion battery electrode piece, preparation method thereof, and lithium ion battery
- 申请号：CN201910150898.3 申请日：2019-02-28
- 公开(公告)号：CN109860513A 公开(公告)日：2019-06-07
- 发明人： 秦瑞杰 , 张愔 , 郝玉福 , 郝保磊 , 汤劲松
- 申请人： 中车青岛四方车辆研究所有限公司
- 申请人地址： 山东省青岛市市北区瑞昌路231号
- 专利权人： 中车青岛四方车辆研究所有限公司
- 当前专利权人： 中车青岛四方车辆研究所有限公司
- 当前专利权人地址： 山东省青岛市市北区瑞昌路231号
- 代理机构： 青岛清泰联信知识产权代理有限公司
- 代理人： 栾瑜
- 主分类号： H01M4/04
- IPC分类号： H01M4/04 ; H01M4/13 ; H01M4/139 ; H01M4/62 ; H01M10/0525 ; B82Y30/00
The invention provides a lithium ion battery electrode piece, a preparation method thereof, and a lithium ion battery, and belongs to the technical field of lithium ion batteries. The preparation method of the lithium ion battery electrode piece comprises the following steps: (1) slurry preparing; (2) slurry coating; (3) plasma etching: etching a dried electrode piece by adopting plasma etching equipment at room temperature, and forming a hole perpendicular to the surface of the electrode piece in the coating; (4) rolling and winding of the etched electrode piece for later use. The graphene, distributed in the horizontal direction, in the electrode piece is selectively etched through a plasma etching method, so that the transmission of lithium ions in the electrode piece is facilitated, the steric hindrance effect of the graphene is reduced, and the ionic conductivity of the lithium ion battery electrode piece is greatly enhanced.
公开/授权文献:
- CN109860513B 锂离子电池极片及其制备方法和锂离子电池 公开/授权日：2020-07-28