Rational electrolyte design and electrode regulation for boosting high-capacity Zn-iodine fiber-shaped batteries with four-electron redox reactions

A novel aqueous Zn-iodine fiber-shaped battery (AZIFB) with a four-electron redox mechanism was fabricated based on 20 m ZnCl 2 /1 m methyl ammonium iodide electrolyte and graphene fiber cathode, which exhibits high capacity and wearable potential.