Invention Grant
- Patent Title: Electrolytes for low impedance, wide operating temperature range lithium-ion battery module
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Application No.: US14614389Application Date: 2015-02-04
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Publication No.: US09947960B2Publication Date: 2018-04-17
- Inventor: Boutros Hallac , Marshall C. Smart , Frederick C. Krause , Bernhard M. Metz , Ratnakumar V. Bugga , Junwei Jiang
- Applicant: Johnson Controls Technology Company , California Institute of Technology
- Applicant Address: US MI Auburn Hills
- Assignee: Johnson Controls Technology Company
- Current Assignee: Johnson Controls Technology Company
- Current Assignee Address: US MI Auburn Hills
- Agency: Fletcher Yoder, P.C.
- Main IPC: H01M10/0525
- IPC: H01M10/0525 ; H01M10/0569 ; H01M10/0568 ; H01M10/0567 ; H01M4/485 ; H01M4/505 ; H01M4/525 ; H01M4/587

Abstract:
A lithium ion battery cell includes a housing, a cathode disposed within the housing, wherein the cathode comprises a cathode active material, an anode disposed within the housing, wherein the anode comprises an anode active material, and an electrolyte disposed within the housing and in contact with the cathode and anode. The electrolyte consists essentially of a solvent mixture, a lithium salt in a concentration ranging from approximately 1.0 molar (M) to approximately 1.6 M, and an additive mixture. The solvent mixture includes a cyclic carbonate, an non-cyclic carbonate, and a linear ester. The additive mixture consists essentially of lithium difluoro(oxalato)borate (LiDFOB) in an amount ranging from approximately 0.5 wt % to approximately 2.0 wt % based on the weight of the electrolyte, and vinylene carbonate (VC) in an amount ranging from approximately 0.5 wt % to approximately 2.0 wt % based on the weight of the electrolyte.
Public/Granted literature
- US20150221977A1 ELECTROLYTES FOR LOW IMPEDANCE, WIDE OPERATING TEMPERATURE RANGE LITHIUM-ION BATTERY MODULE Public/Granted day:2015-08-06
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