Patent ID: 8283074

Claim:
An electrolyte comprising: an aprotic solvent; and a metal complex salt; wherein the metal complex salt is a complex of Formula (I), Formula (II), Formula (III), Formula IV, a diastereomer any of Formulas I, II, III, or IV thereof, or a mixture of any two or more thereof: further wherein; A is Al; A′ is P or As; each Z is independently O or S; each X′ is independently H, halogen, CN, NO 2 , alkyl, or haloalkyl; M is an electrochemically stable cation; x is 1, 2, or 3; R 5 , R 6 , R 7 and R 8 are individually a halogen; an unsubstituted or substituted alkyl group; an unsubstituted or substituted alkyl group; a unsubstituted or substituted haloalkyl group; an unsubstituted or substituted aryl group; a unsubstituted or substituted haloaryl group; a cyano group; or a nitro group; or two of R 5 , R 6 , R 7 and R 8 , or two pairs of R 5 , R 6 , R 7 and R 8 , join together as a group of Formula V; wherein R 9 is absent, or is a C 1 -C 10 alkyl, C 1 -C 10 haloalkyl, C 6 -C 20 aryl, or C 6 -C 20 haloaryl.