公开(公告)号：US20240304945A1

公开(公告)日：2024-09-12

申请号：US18658920

申请日：2024-05-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yanyun Ma ,  Haiyi Hong ,  Xiaonan Cheng ,  Peng Wang ,  Lei Chao ,  Jianrui Yang ,  Yi Zheng ,  Chengdong Sun

IPC: H01M50/446 ,  H01M50/42 ,  H01M50/434

CPC classification number: H01M50/446 ,  H01M50/42 ,  H01M50/434

Abstract: This application discloses a separator and a preparation method therefor, a battery, and an electric apparatus. The coating is formed on at least part of a surface of the substrate, the coating includes composite particles, first inorganic particles, and a binder, the composite particles form bulges on a surface of the coating, the composite particles include polyacrylate particles and ion-conducting particles, and the ion-conducting particle is present between at least two polyacrylate particles. A mass ratio of the first inorganic particles to the ion-conducting particles is 1:0.007-0.06.

公开(公告)号：US20240313352A1

公开(公告)日：2024-09-19

申请号：US18657806

申请日：2024-05-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaonan Cheng ,  Haiyi Hong ,  Yanyun Ma ,  Jianrui Yang ,  Yi Zheng ,  Chengdong Sun

IPC: H01M50/451 ,  H01M50/403 ,  H01M50/42 ,  H01M50/434 ,  H01M50/443 ,  H01M50/446 ,  H01M50/489

CPC classification number: H01M50/451 ,  H01M50/403 ,  H01M50/42 ,  H01M50/434 ,  H01M50/443 ,  H01M50/446 ,  H01M50/489 ,  H01M2220/20

Abstract: This application discloses a separator and a preparation method therefor, a battery, and an electric apparatus. The separator includes a substrate and a pressure-sensitive coating, where the pressure-sensitive coating is formed on at least a portion of surface of the substrate. The pressure-sensitive coating includes composite particles and a first plasticizer. The composite particles form bulges on surface of the coating, and the composite particles include polyacrylate particles and inorganic particles. The inorganic particle is present between at least two of the polyacrylate particles, and solubility parameter of the first plasticizer and solubility parameter of the composite particles have a difference with an absolute value of 0.3 MPa1/2-4 MPa1/2.