公开(公告)号：US20240021829A1

公开(公告)日：2024-01-18

申请号：US18472544

申请日：2023-09-22

Applicant: Ningde Amperex Technology Limited

Inventor： Chengxin HU ,  Yajie LI

IPC: H01M4/62

CPC classification number: H01M4/622 ,  H01M2004/027

Abstract: A binder is a polymer including structural units represented by a formula I, a formula II, and a formula III. R1 is selected from any one of a substituted or unsubstituted C1-C10 alkyl group, a substituted or unsubstituted C2-C10 alkenyl group, a substituted or unsubstituted C2-C10 alkynyl group, or a substituted or unsubstituted C6-C20 aryl group; R2 is selected from a phenolic hydroxyl group and the number of phenolic hydroxyl groups is 2 to 5; R3 is one of C, S, N, or P; X is selected from any one of Li, Na, or K; R4 and R5 each are independently selected from one of a hydrogen atom, a substituted or unsubstituted C1-C10 alkyl group, a substituted or unsubstituted C2-C10 alkenyl group, a substituted or unsubstituted C2-C10 alkynyl group, or a substituted or unsubstituted C6-C20 aryl group; and n1, n2, and n3 each are independently an integer greater than zero.