A mechanically robust all-solid-state supercapacitor based on a highly conductive double-network hydrogel electrolyte and Ti₃C₂T_<i>x</i> MXene electrode with anti-freezing property

Abstract

A flexible all-solid-state supercapacitor based on a highly ionic conductive double-network hydrogel electrolyte and intrinsically powerful MXene film electrode revealed remarkable mechanical reliability, exceptional performance and cold tolerance.