公开(公告)号：US20240047827A1

公开(公告)日：2024-02-08

申请号：US18258767

申请日：2021-12-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yaoming Deng ,  Zhengjie Li ,  Dongfang Yang ,  Xinzhi Zhang ,  Yunlei Gao ,  Fengchao Xie

IPC: H01M50/46 ,  H01M50/457 ,  H01M50/426 ,  H01M50/434 ,  H01M50/429 ,  H01M50/414 ,  H01M50/463

CPC classification number: H01M50/46 ,  H01M50/457 ,  H01M50/426 ,  H01M50/434 ,  H01M50/4295 ,  H01M50/414 ,  H01M50/463 ,  H01M2220/30

Abstract: A battery includes a first base separator and a second base separator that are located on two sides of an electrode plate and that are adjacent to each other, and a first-type separator coating layer that is adhered to an edge region of the first base separator and an edge region of the second base separator. Another battery includes a second-type separator coating layer adhered to a middle region of a base separator, and a third-type separator coating layer adhered to an edge region of a first base separator, where the second-type separator coating layer includes an adhesive polymer with a first mass content, the third-type separator coating layer includes an adhesive polymer with a second mass content, and the second mass content is greater than the first mass content.