Published in:Angewandte Chemie International Edition
Language:
English
DOI:
10.1002/anie.201916529
ISSN:
1433-7851;
1521-3773
Origination:
Footnote:
Description:
<jats:title>Abstract</jats:title><jats:p>Proton storage in rechargeable aqueous zinc‐ion batteries (ZIBs) is attracting extensive attention owing to the fast kinetics of H<jats:sup>+</jats:sup> 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‐<jats:italic>a</jats:italic>:2′,3′‐<jats:italic>c</jats:italic>] 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<jats:sup>+</jats:sup> uptake/removal behavior with highly reversible structural evolution of HATN. The H<jats:sup>+</jats:sup> 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.</jats:p>