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:
Jan. 06, 2026
Filed:
Mar. 15, 2024
Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong, CN;
Abstract
Provided are a secondary battery, a battery module, a battery pack, and an electric device. The secondary battery includes a cathode piece and a non-aqueous electrolyte. The cathode active material includes a core and a shell covering the core. The core includes LiMnAPRO. The shell includes: a first cladding layer covering the core, and a second cladding layer covering the first cladding layer. The first cladding layer includes pyrophosphate MPOand phosphate XPO, and the second cladding layer contains carbon. The non-aqueous electrolyte includes a first lithium salt and a first additives, the first lithium salt is one or more selected from the group consisting of LiN(CFSO)(CFSO) and Li(FSO)N, in which, m and n represent positive integers. The first additive includes one or more of a compound represented by: O═C═N—R—N═C═O.