公开(公告)号：US20240356033A1

公开(公告)日：2024-10-24

申请号：US18760017

申请日：2024-07-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Sainan Mu ,  Ning Wang ,  Xinghui Wang ,  Shisong Li ,  Shengwu Zhang ,  Zhiting Wei

IPC: H01M4/62 ,  C08L5/00 ,  H01M4/02 ,  H01M4/133 ,  H01M4/587

CPC classification number: H01M4/622 ,  C08L5/00 ,  H01M4/133 ,  H01M4/587 ,  C08L2203/20 ,  H01M2004/021 ,  H01M2004/027

Abstract: The present application provides a negative electrode slurry, and a method for preparing the same, as well as a negative electrode plate, a secondary battery, a battery module, a battery pack, and an electrical apparatus thereof, where the negative electrode slurry comprises a negative electrode binder, and the negative electrode binder comprises a polymer composed of a building block represented by formula (I). The negative electrode binder in the present application is used to effectively improve the problem of roller sticking of the negative electrode plate during cold pressing, and the negative electrode binder and the negative electrode active material are better cladded, thereby reducing solid electrolyte interface reconstruction during cycles, and improving cycling performance and storage performance of the secondary battery.

公开(公告)号：US11855291B1

公开(公告)日：2023-12-26

申请号：US18337135

申请日：2023-06-19

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhiting Wei ,  Ning Wang ,  Xinghui Wang ,  Shisong Li ,  Shengwu Zhang ,  Sainan Mu

IPC: H01M4/66 ,  H01M4/02

CPC classification number: H01M4/667 ,  H01M4/662 ,  H01M2004/027

Abstract: A surface treatment composition includes, expressed as parts by weight, a first ingredient of 1 to 30 parts and a second ingredient of 1 to 30 parts. The first ingredient is a polycaprolactone modified with an acidic group and/or a salt of the acidic group. The second ingredient is selected from polyether-modified polyolefin acid, polyether-modified polyalkenoate salt, polyether-modified polyalkenoate ester, or a combination thereof.