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. 18, 2012
Filed:
Sep. 03, 2009
Brett Lucht, Wakefield, RI (US);
Ang Xiao, Kingston, RI (US);
LI Yang, Kingston, RI (US);
Mengqing Xu, Kingston, RI (US);
Brett Lucht, Wakefield, RI (US);
Ang Xiao, Kingston, RI (US);
Li Yang, Kingston, RI (US);
Mengqing Xu, Kingston, RI (US);
Abstract
A non-aqueous electrolyte usable in rechargeable lithium-ion batteries including a solution of LiPF/carbonate based electrolytes with low concentrations of LiFOP such that the thermal stability is increased compared to a standard lithium battery. A method of making lithium tetrafluorophospahte (LiFCO, LiFOP) including, reacting PFwith lithium oxalate, recrystallizing DMC/dichloromethane from a 1:1 mixture of to separate LiFOP from LiPFto form a lithium salt. An electric current producing rechargeable Li-ion cell. The rechargeable lithium ion cell includes an anode, a cathode, and a non-aqueous electrolyte comprising a solution of a lithium salt in a non-aqueous organic solvent containing lithium tetrafluorooxalatophosphate (LiPF(CO), LiFOP).