IONIC LIQUID, ELECTROLYTE, AND LITHIUM SECONDARY BATTERY USING THE SAME, AND METHOD FOR PRODUCING THE IONIC LIQUID

摘要

PROBLEM TO BE SOLVED: To provide an ionic liquid excellent in performance as an electrolyte material, having e.g. ionic conductivity and wide potential window, and excellent in safety, thus useful in a lithium secondary batteries, and to provide an electrolyte using the ionic liquid.

SOLUTION: The ionic liquid includes cyanophosphate-based anions each represented by formula (1). The electrolyte using the ionic liquid is also provided. Besides, a lithium secondary battery using the ionic liquid is provided. In addition, a method for producing the ionic liquid is provided. In the formula, X is a halogen atom and n is an integer of 1-6.

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