ADDITIVE FOR NON-AQUEOUS LIQUID ELECTROLYTE SECONDARY CELL, NON-AQUEOUS LIQUID ELECTROLYTE SECONDARY CELL, ADDITIVE FOR NON-AQUEOUS LIQUID ELECTROLYTE ELECTRIC DOUBLE LAYER CAPACITOR AND NON-AQUEOUS LIQUID ELECTROLYTE ELECTRIC DOUBLE LAYER CAPACITOR

摘要

The present invention provides additives for a non-aqueous electrolytic solution secondary cell and a non-aqueous electrolytic solution electric double layer capacitor comprising a phosphazene derivative represented by formula (1): (PNF2)n wherein n represents 3 to 14, and provides the non-aqueous electrolytic solution secondary cell and the non-aqueous electrolytic solution electric double layer capacitor each containing a non-aqueous electrolytic solution which has the additive for the non-aqueous electrolytic solution secondary cell or the additive for the non-aqueous electrolytic solution electric double layer capacitor and a supporting salt, an anode, and a cathode.