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:
Apr. 05, 2022
Filed:
Apr. 26, 2019
Contemporary Amperex Technology Co., Limited, Ningde, CN;
Yuliang Shen, Ningde, CN;
Meng Kang, Ningde, CN;
Tianquan Peng, Ningde, CN;
Jiazheng Wang, Ningde, CN;
Libing He, Ningde, CN;
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde, CN;
Abstract
The present disclosure provides a negative electrode plate and a battery, the negative electrode plate comprises a negative current collector and a negative film, the negative film is provided on at least one surface of the negative current collector and comprises a negative active material, the negative active material comprises graphite, and the negative electrode plate satisfies a relationship: 0.27≤P×1.1/G+2/V≤1.3, P represents a porosity of the negative film, G represents a graphitization degree of the negative active material, Vrepresents an OI value of the negative film. The battery of the present disclosure can have the characteristics of long cycle life, high energy density and excellent dynamics performance at the same time.