A123 Systems LLC

Board of Governors for Higher Education, State of Rhode Island and Providence Plantations

Basf Se Corporation

University of Rhode Island

Rhode Island Board of Education, State of Rhode Island and Provide Plantations

Mengqing Xu

Michael Schmidt

Derek C Johnson

Arnd Garsuch

Itamar Michael Malkowsky

Frederick Francois Chesneau

Brett L Lucht

Taehwan Yu

Ang Xiao

Li Yang

Xiaobo Li

Kate Digan

Connor Tomshack

Liyuan Sun

Dongsheng Lu

Liu Zhou

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.

Electrolyte compositions for lithium ion batteries

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).

Electrolyte for lithium ion batteries

Growing community of inventors

Kingston, RI, United States of America

Mengqing Xu