Subtly manipulating Zn2+-coordinated configurations with a complexing agent to boost the reversibility of the zinc anode.

By using ethylenediamine (En) as a complexing agent, the impact of various Zn2+ coordinated configurations on Zn anode reversibility was systematically studied. With the predominant configurations of [Zn(En)]2+ and [Zn(En)2]2+ in the electrolyte, both symmetric Zn/Zn cells and Zn/NiHCF full cells exhibit significantly improved cycling stability compared to the counterparts with pure ZnSO4 electrolyte. [ABSTRACT FROM AUTHOR]