CPC H01M 10/0562 (2013.01) [C07F 5/027 (2013.01); H01M 4/382 (2013.01); H01M 10/0525 (2013.01); H01M 2300/0065 (2013.01)] | 18 Claims |
1. A solid-state electrolyte comprising:
a combined salt comprising:
an ultrahigh concentration of an alkali metal or alkali earth metal closo-borate salt in a liquid mixture of the alkali metal or alkali earth metal closo-borate salt and at least one soft ionic solid-state electrolyte (SISE), the alkali metal or alkali earth metal closo-borate salt comprising lithium, sodium, potassium, or magnesium paired with at least one closo-borate anion, the at least one SISE comprising at least one organic cation coupled with the at least one closo-borate anion;
a conductivity, at room temperature, exceeding a conductivity of the alkali or alkali earth metal closo-borate salt and a conductivity of a saturated solution of the alkali or alkali earth metal closo-borate salt in the SISE.
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