A family of electrolytes for use in a lithium ion battery. The genus of electrolytes includes ketone-based solvents, such as, 2,4-dimethyl-3-pentanone; 3,3-dimethyl 2-butanone(pinacolone) and 2-butanone. These solvents can be used in combination with non-Lewis Acid salts, such as Li.sub.2[B.sub.12F.sub.12] and LiBOB.
The United States Government has certain rights in this invention pursuant to Contract No. DE-AC02-06CH11357 between the U.S. Department of Energy and University of Chicago Argonne, LLC representing Argonne National Laboratory.