The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 2026
Filed:
Jan. 28, 2025
Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;
Lei Li, Ningde, CN;
Meihuang Chen, Ningde, CN;
Yi Zheng, Ningde, CN;
Manxiang Wei, Ningde, CN;
Ming Xu, Ningde, CN;
Chengdong Sun, Ningde, CN;
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong, CN;
Abstract
A polymer, a separator, and a related secondary battery and electric apparatus are described. The polymer includes a first structural unit, a second structural unit, and a third structural unit; where the first structural unit includes a structural unit represented by formula (I), and in formula (I), Rincludes one or more of hydrogen atom and substituted or unsubstituted C1-C5 alkyl, and Rincludes one or more of substituted or unsubstituted C1-C20 alkyl, substituted or unsubstituted C3-C20 cycloalkyl, and substituted or unsubstituted C1-C20 hydroxyalkyl; the second structural unit includes a structural unit represented by formula (II), and in formula (II), Rincludes one or more of hydrogen atom and substituted or unsubstituted C1-C5 alkyl; and the third structural unit includes a structural unit represented by formula (III). The units in the polymer can synergistically improve the adhesion, stability, swelling resistance, and thermal stability of the polymer.