公开(公告)号：US12062811B2

公开(公告)日：2024-08-13

申请号：US18105725

申请日：2023-02-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xitong Wang ,  Daichun Tang ,  Xinxin Du ,  Honggang Yu

IPC: H01M4/00 ,  H01M4/04 ,  H01M50/403 ,  H01M50/431 ,  H01M50/434 ,  H01M50/446 ,  H01M50/449 ,  H01M50/489 ,  H01M50/491

CPC classification number: H01M50/491 ,  H01M4/0404 ,  H01M4/0471 ,  H01M50/403 ,  H01M50/431 ,  H01M50/434 ,  H01M50/446 ,  H01M50/449 ,  H01M50/489

Abstract: An electrode sheet and a secondary battery comprising the same are provided. The electrode sheet comprises a current collector and an active material layer provided on at least one surface of the current collector. A first inorganic separation layer and a second inorganic separation layer are sequentially formed on the active material layer. The first inorganic separation layer comprises a plurality of pores having a diameter of 300 nm to 600 nm, and each of the plurality of pores extends from the first inorganic separation layer toward the second inorganic separation layer and penetrates through the second inorganic separation layer. The pore diameter of the pores in the second inorganic separation layer is uniform.

公开(公告)号：US20230223660A1

公开(公告)日：2023-07-13

申请号：US18105725

申请日：2023-02-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xitong Wang ,  Daichung Tang ,  Xinxin Du ,  Honggang Yu

IPC: H01M50/491 ,  H01M50/446 ,  H01M4/04

CPC classification number: H01M50/491 ,  H01M50/446 ,  H01M4/0404 ,  H01M4/0471

Abstract: An electrode sheet and a secondary battery comprising the same are provided. The electrode sheet comprises a current collector and an active material layer provided on at least one surface of the current collector. A first inorganic separation layer and a second inorganic separation layer are sequentially formed on the active material layer. The first inorganic separation layer comprises a plurality of pores having a diameter of 300 nm to 600 nm, and each of the plurality of pores extends from the first inorganic separation layer toward the second inorganic separation layer and penetrates through the second inorganic separation layer. The pore diameter of the pores in the second inorganic separation layer is uniform.