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:
May. 13, 2025
Filed:
Dec. 14, 2021
Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong, CN;
Abstract
This application provides a secondary battery and an apparatus containing the secondary battery. The secondary battery includes an electrolytic solution. The electrolytic solution includes an electrolyte salt and an organic solvent. The electrolyte salt includes lithium bis(fluorosulfonyl)imide (LiFSI) and lithium hexafluorophosphate (LiPF). A volumetric molar concentration of the LiFSI in the electrolytic solution is 0.8 mol/L-1.2 mol/L; and a volumetric molar concentration of the LiPFin the electrolytic solution is 0.15 mol/L-0.4 mol/L. The organic solvent includes ethylene carbonate (EC), and mass percent of the EC in the organic solvent is less than or equal to 20%.