Alkali ion conducting plastic crystals
Inorganic plastic crystal electrolytes, also referred to herein as inorganic plastic crystal conductors or single ion conductors including [AB x-y C y ] y− [M] y + , where A is a tetravalent to hexavalent atom; B is a monovalent ligand; C is an oxyanion; M is an alkali metal; x is 4 when A is tetravalent, x is 5 when A is pentavalent, and x is 6 when A is hexavalent; y is an integer from 1 to x−1 inclusive. [AB x-y Cy] y− [M] y + is rotationally disordered and ionically conductive.
1. A composition comprising [AB x-y C y ] y− [M] y + , wherein:
A is silicon,
B is chlorine,
C is sulfate, and
M is lithium or sodium,
x is 4,
y is an integer from 1 to 3 inclusive, and
[AB x-y C y ] y− [M] y + is rotationally disordered, ionically conductive, and electrically neutral.
2. The composition of claim 1 , in which M + is mobile.
3. A composition comprising [AB x-y C y ] y− [M] y + , wherein:
A is silicon,
B is a monovalent ligand,
C is sulfate, and
M is an alkali metal,
x is 4,
y is an integer from 1 to 3 inclusive, and
[AB x-y C y ] y− [M] y + is rotationally disordered, ionically conductive, and electrically neutral.
4. The composition of claim 3 , wherein M is lithium or sodium.
5. A mixture comprising the composition of claim 3 .
6. The mixture of claim 5 , wherein M is lithium or sodium.
7. A composition comprising [AB x-y C y ] y− [M] y + , wherein:
A is phosphorus,
B is chlorine,
C is sulfate, and
M is lithium,
x is 5,
y is an integer from 1 to 4 inclusive, and
[AB x-y C y ] y − [M] y + is rotationally disordered and ionically conductive, and M is a single, mobile cationic species.