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:
Sep. 08, 2026
Filed:
Nov. 29, 2021
Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;
Xin Liu, Ningde City, CN;
Shiwen Wang, Ningde City, CN;
Qisen Huang, Ningde City, CN;
Cheng Li, Ningde City, CN;
Mingling Li, Ningde City, CN;
Jia Peng, Ningde City, CN;
Xianghui Liu, Ningde City, CN;
Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;
Abstract
The present application discloses a positive electrode current collector, a positive electrode plate, an electrochemical device, and an apparatus. The positive electrode current collector includes a polymer material-based support layer and an aluminum-based conductive layer disposed on at least one surface of the support layer; a thickness Dof the aluminum-based conductive layer, a tensile strength T of the support layer, and a thickness Dof the support layer satisfy a relational formula 0.01≤(200×D)/(T×D)≤0.5, in the formula Dand Dare in the same unit, and T is in MPa. The positive electrode current collector has relatively high mechanics and mechanical properties, good electrical conductivity and current collection performance and low weight, which can improve preparation yield of the positive electrode current collector, the positive electrode plate and the electrochemical device and their reliability during use.