Facile synthesis of ultra-tensile hydrogels for flexible all-solid-state supercapacitor energy storage devices

In this paper, poly3-acrylamidophenylboronic acid crosslinked acrylamide hydrogel (P(AAPBA-co-AM) gel) with super tensile characteristics was prepared by acrylamide polymerization using 3-aminophenylboric acid as the raw material, which was used in flexible all-solid-state supercapacitors. By altering the crosslinking density, the gel's tensile strength was optimized. It can be used as an ideal safe and non-toxic solid-state electrolyte for supercapacitors due to its ability to absorb aqueous electrolytes. The specific capacitance of the flexible supercapacitor is 116 F g(-1) and the energy density is 16.11 Wh kg(-1). Additionally, the gel created with a solvent content of 65% may withstand a 5000% strain under 170 kPa stress while retaining electrochemical characteristics at various bending angles. This gel has exceptional tensile deformability, making it suitable for supercapacitors with varying needs.

Automated summary

In this paper, a super tensile hydrogel was prepared using a specific material, which can be used in flexible all-solid-state supercapacitors. The hydrogel has high specific capacitance and energy density, and it can maintain good electrochemical characteristics under different strains.