A stretchable and adhesive zwitterionic hydrogel electrolyte and MnO 2 /polyaniline cathode materials for flexible high-performance zinc-ion batteries

A flexible zinc-ion battery with a stretchable adhesive zwitterionic hydrogel electrolyte (Zn//XG/P(AM- co -SBMA)//MnO 2 /PANI) delivers high specific capacity and maintains stable electrochemical performance during bending, compression, and folding.