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:
Feb. 13, 2024
Filed:
Dec. 10, 2021
Contemporary Amperex Technology Co., Limited, Ningde, CN;
Contemporary Amperex Technology Co., Limited, Ningde, CN;
Abstract
The present application relates to a secondary battery, a process for preparing the same and an apparatus containing the secondary battery. Particularly, the secondary battery comprises a negative electrode plate, wherein the negative electrode plate comprises a negative electrode current collector and a negative electrode film, and the negative electrode film comprises a first negative electrode film and a second negative electrode film; the first negative electrode film is disposed on at least one surface of the negative electrode current collector and comprises a first negative electrode active material; and the second negative electrode film is disposed on the first negative electrode film and comprises a second negative electrode active material; the first and second negative electrode active materials both comprise artificial graphite; the first negative electrode active material comprises primary particles, and a number percentage of the primary particles in the first negative electrode active material A satisfies A≥50%.