Tough BMIMCl-based ionogels exhibiting excellent and adjustable performance in high-temperature supercapacitors

Herein, we describe a supramolecular approach to synthesize tough ionogels through self-initiated ultraviolet polymerization. The prepared ionogel can be used as the integrated electrolyte and separator in the all-solid supercapacitor. The electrochemical performance can be tuned by the temperature, and a higher value can be achieved at higher temperature.