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:
Dec. 30, 2025
Filed:
Dec. 23, 2020
A123 Systems Llc, Novi, MI (US);
Liyuan Sun, Acton, MA (US);
Xiaobo Li, Fort Lee, NJ (US);
Mengqing Xu, Middleton, WI (US);
Derek Johnson, Fort Collins, CO (US);
Taehwan Yu, Burlington, MA (US);
Kate Digan, Bedford, MA (US);
Connor Tomshack, Lexington, MA (US);
A123 SYSTEMS LLC, Novi, MI (US);
Abstract
Systems and methods are provided for using electrolytic compositions in lithium ion batteries. In one example, an electrolytic composition may include vinylene carbonate, fluoroethylene carbonate, 1,3-propane sultone, ethylene sulfite, and a conducting salt including no less than 80 mol % of lithium bis(fluorosulfonyl)imide. In this way, a capacity retention of the lithium ion battery may be maintained, such as during high-temperature storage at 100% state of charge.