Proton Insertion Chemistry of a Zinc-Organic Battery.

Authors :: Tie Z
Liu L
Deng S
Zhao D
Niu Z
Source :: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2020 Mar 16; Vol. 59 (12), pp. 4920-4924. Date of Electronic Publication: 2020 Feb 03.
Publication Year :: 2020
Abstract: Proton storage in rechargeable aqueous zinc-ion batteries (ZIBs) is attracting extensive attention owing to the fast kinetics of H <superscript>+</superscript> 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 <superscript>+</superscript> uptake/removal behavior with highly reversible structural evolution of HATN. The H <superscript>+</superscript> uptake/removal endows the Zn-HATN batteries with enhanced electrochemical performance. Proton insertion chemistry will broaden the horizons of aqueous Zn-organic batteries and open up new opportunities to construct high-performance ZIBs.<br /> (© 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)