LAUSR

With the rapid development of flexible energy storage and wearable strain sensing. Conductive hydrogels are attracting attention as electrolyte materials for flexible strain sensors and flexible supercapacitors due to their excellent flexibility and wetting properties. In this work, anti-freezing hydrogels with high stretchability, adhesion and conductivity were designed and prepared by introducing phosphoric acid solutions into polyacrylamide and chitosan systems. The multifunctional hydrogel samples prepared by this method can be used as both quasi-solid electrolytes and wearable strain sensors. The hydrogel-based supercapacitor showed a charge/discharge efficiency of 99.67% and a capacitance retention of 98.85% after 10,000 cycles charge/discharge tests at -30°C.The tiny characteristic heartbeat wave forms were detected by the hydrogel as a flexible strain sensor. It is foreseeable that PCP multifunctional hydrogel can be a promising flexible material for a new generation of flexible sensors and flexible energy storage devices in a certain range of temperatures. This article is protected by copyright. All rights reserved.