Weakly coordinating anions containing polyfluoroalkoxide ligands
AssigneeColorado State University Research Foundation
InventorsSteven H. Strauss, Benjamin G. Nolan, Thomas J. Barbarich, Juston J. Rockwell
Life of this patent
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Abstract
A compound comprising a polyfluorinated anion of the formula [M1(XC(CFa(R1)b)(CFc(R2)d)R3)m(R4)n]−p and the use thereof is provided. Specifically, the present invention provides a compound comprising a anion which comprises a polyfluorinated alkoxide coordinated to a transition metal, or a Group III, IV or V element.
Claims57
A compound comprising an anion of the formula [M1(XC(CFa(R1)b)(CFc(R2)d)R3)m(R4)n]−1, wherein
- M1 is selected from the group consisting of Al, B, V, Ti, Si, Zr, Ge, Sn, Y, Zn, Ga, Nb, Ta, Bi, P, As, Sc, Hf and Sb;
- each X is independently O, S, or NR5R6;
- each of R1 and R2 are independently H, halide or C1-C4 alkyl;
- each R3 is independently H, C1-C4 alkyl, or C4-C20 aryl;
- each R4 is independently C1-C10 alkoxide or C4-C20 aryloxide;
- each of R5 and R6 are independently H or C1-C10 alkyl;
- each of a and c are independently an integer from 0 to 3;
- a+b=3;
- c+d=3;
- m is an integer from 2 to 8;
- and
- n is an integer from 0 to 4;
- provided at least one of a or c is not 0 and when M1 is Al and a and c are 3, R3 is not phenyl or p-methylphenyl.
A battery comprising a compound of the formula Mp[M1(XC(CFa(R1)b)(CFc(R2)d)R3)m(R4)n]k, wherein
- M is a metal, phosphonium, ammonium or sulfonium;
- M1 is a transition metal, or a Group III, IV or V element;
- each X is independently O, S, or NR5R6;
- each of R1 and R2 are independently H, halide or C1-C4 alkyl;
- each R3 is independently H, C1-C4 alkyl, or C4-C20 aryl;
- each R4 is independently C1-C10 alkyl, C1-C10 alkoxide or C4-C20 aryloxide;
- each of R5 and R6 are independently H or C1-C10 alkyl;
- each of a and c are independently an integer from 0 to 3;
- a+b=3;
- c+d=3;
- k and p are 1 or 2;
- m is an integer from 2 to 8;
- and
- n is an integer from 0 to 4;
- provided at least one of a or c is not 0.
A solid polymer comprising electrolyte of the formula Mp[M1(XC(CFa(R1)b)(CFc(R2)d)R3)m(R4)n]k, wherein
- M is a metal, phosphonium, ammonium or sulfonium;
- M1 is a transition metal, or a Group III, IV or V element;
- each X is independently O, S, or NR5R6;
- each of R1 and R2 are independently H, halide or C1-C4 alkyl;
- each R3 is independently H, C1-C4 alkyl, or C4-C20 aryl;
- each R4 is independently C1-C10 alkyl, C1-C10 alkoxide or C4-C20 aryloxide;
- each of R5 and R6 are independently H or C1-C10 alkyl;
- each of a and c are independently an integer from 0 to 3;
- a+b=3;
- c+d=3;
- k and p are 1 or 2;
- m is an integer from 2 to 8;
- and
- n is an integer from 0 to 4;
- provided at least one of a or c is not 0.
An electrolyte for an electrochemical device comprising a lithium salt of a metal anion comprising at least one polyfluoroalkoxide ligand.
A compound comprising a mono- or di-anion metal ligand complex having at least two polyfluorinated alkoxide ligands, wherein a lithium salt of said compound has conductivity of at least about 50 μScm−1 in THF at about 0.01 M concentration at 25° C.
A compound comprising a mono- or di-anion metal ligand complex having at least two polyfluorinated alkoxide ligands, wherein a lithium salt of said compound has conductivity of at least about 50 μScm−1 in glyme at about 0.01 M concentration at 25° C.
Dependencies are inferred from the claim text.