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:
Aug. 02, 2022
Filed:
Dec. 29, 2021
Contemporary Amperex Technology Co., Limited, Ningde, CN;
Guangjun Wang, Ningde, CN;
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde, CN;
Abstract
The present application provide a secondary battery and an apparatus containing the secondary battery. The secondary battery includes an outer packaging film, an electrode assembly and an electrolyte accommodated, the electrode assembly includes a positive electrode plate, a negative electrode plate and a separator, the positive electrode plate includes a positive electrode current collector and a positive electrode membrane arranged on at least one surface of the positive electrode current collector and including a positive electrode active material, the negative electrode plate includes a negative electrode current collector and a negative electrode membrane arranged on at least one surface of the negative electrode current collector and comprising a negative electrode active material, the positive electrode active material includes a lithium-contained nickel cobalt manganese oxide and/or a lithium-contained nickel cobalt aluminum oxide, the negative electrode active material includes a silicon-based material and a carbon material; the secondary battery satisfies: −4≤2*√{square root over (C)}*C*C+0.1−L−F≤2.