Patent ID: 10566659

Abstract:
Binary and ternary eutectic mixtures and corresponding electrolytes are disclosed. In some embodiments, binary eutectic mixtures and electrolytes each include a first salt, X1+Y1−, and a second salt, X2+Y2−, wherein each of X1+ and X2+ is an alkali metal cation and X1+ is different from X2+; and each of Y1− and Y2− is a sulfonimide anion and Y1− is different from Y2−. In ternary eutectic mixtures and electrolytes further include a third salt, X3+Y3−, wherein X3+ is different from each of X1+ and X2+. In some embodiments, the eutectic mixtures and electrolytes have melting points in a range of about 5° C. to about 70° C. Electrochemical devices containing such eutectic-mixture electrolytes are also disclosed.