Non-aqueous electrolyte for battery and non-aqueous electrolyte battery comprising the same as well as electrolyte for electric double layer capacitor and electric double layer capacitor comprising the same

Abstract

This invention relates to a safe electrolyte having no risk of igniting-firing, and more particularly to a non-aqueous electrolyte for a battery comprising an ionic liquid composed of a cation portion and an anion portion, and a supporting salt, characterized in that the cation portion of the ionic liquid contains phosphorus and nitrogen, as well as an electrolyte for an electric double layer capacitor comprising an ionic liquid composed of a cation portion and an anion portion, characterized in that the cation portion of the ionic liquid contains phosphorus and nitrogen.

Dependencies are inferred from the claim text.