公开(公告)号：US11183677B2

公开(公告)日：2021-11-23

申请号：US17211846

申请日：2021-03-25

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Huamin Zhou ,  Yun Zhang ,  Yunming Wang ,  Maoyuan Li ,  Ruoyu Xiong ,  Hui Yang ,  Bo Yan

IPC: H01M4/04 ,  H01M4/13 ,  H01M10/05 ,  H01M4/139 ,  H01M10/0525 ,  H01M4/02

Abstract: A preparation method of a lithium-ion battery electrode sheet includes: adding a powdered thermal decomposition additive, an active material, a binder, and a conductive agent into a solvent according to a predetermined ratio and a specific order, performing continuous stirring until the solvent is uniformly mixed, obtaining an electrode slurry, coating the prepared and obtained electrode slurry onto a current collector to obtain a lithium-ion battery wet electrode sheet, and heating and drying the lithium-ion battery wet electrode sheet. The lithium-ion battery electrode sheet with the vertical vent structures is accordingly prepared and obtained. The product includes a current collector, an electrode coating layer, and a plurality of vertical vent structures which are uniformly distributed.