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STABLE FLUORINATED ALKYLATED LITHIUM MALONATOBORATE SALTS FOR LITHIUM-ION BATTERY APPLICATIONS

United States Patent Application

20170331153
A1
View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
The invention is directed in a first aspect to electrolyte salt of the general formula Li.sup.+Z.sup.-, wherein Z.sup.- has the following chemical formula: ##STR00001## wherein R.sup.1 is an alkyl group (R') containing at least one and up to twelve carbon atoms, and R.sup.2 and R.sup.3 are independently selected from fluorine atom, hydrocarbon groups R, alkoxy groups (--OR), and ester groups --OC(O)R, wherein R.sup.2 and R.sup.3 can optionally interconnect via R functionalities to form a boron-containing ring. The invention is also directed to electrolyte compositions in which the above electrolyte salt is incorporated. The invention is further directed to lithium-ion batteries containing these electrolytes.
SUN, Xiao-Guang (Knoxville, TN), DAI, Sheng (Knoxville, TN), WAN, Shun (Salt Lake City, UT)
15/ 142,646
April 29, 2016
GOVERNMENT SUPPORT [0002] This invention was made with government support under Prime Contract No. DE-AC05-000R22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.