Proton Insertion Chemistry of a Zinc–Organic Battery

Abstract Proton storage in rechargeable aqueous zinc‐ion batteries (ZIBs) is attracting extensive attention owing to the fast kinetics of H + insertion/extraction. However, it has not been achieved in organic materials‐based ZIBs with a mild electrolyte. Now, aqueous ZIBs based on diquinoxalino [2,3‐ a :2′,3′‐ c ] phenazine (HATN) in a mild electrolyte are developed. Electrochemical and structural analysis confirm for the first time that such Zn–HATN batteries experience a H + uptake/removal behavior with highly reversible structural evolution of HATN. The H + uptake/removal endows the Zn–HATN batteries with enhanced electrochemical performance. Proton insertion chemistry will broaden the horizons of aqueous…

• NN
  National Natural Science Foundation of China

  Awards: 51822205, 21875121
• PR
  Postdoctoral Research Foundation of China

  Award: 2019M650045
• NS
  Natural Science Foundation of Tianjin Municipal Science and Technology Commission

  Award: 18JCJQJC46300
• KT
  Key Technologies Research and Development Program

  Award: 2017YFA0206701