An organic-inorganic solid-electrolyte interface generated from dichloroisocyanurate electrolyte additive for a stable Zn metal anode in aqueous Zn batteries
CHEMICAL COMMUNICATIONS(2023)
Abstract
Dendrite growth and side reactions of the Zn metal anode limit the cycle life of aqueous Zn batteries. Herein, we propose a sodium dichloroisocyanurate electrolyte additive with a low concentration of 0.1 M to modify the Zn interface environment and construct a stable organic-inorganic solid-electrolyte interface on the Zn electrode. It suppresses corrosion reactions and directs uniform Zn deposition. The cycle life of the Zn electrode in symmetric cells extends to 1100 h at 2 mA cm(-2) and 2 mA h cm(-2), and the Zn plating/stripping coulombic efficiency reaches 99.5% for more than 450 cycles.
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Key words
stable zn metal anode,dichloroisocyanurate solid–electrolyte,solid–electrolyte interface,organic–inorganic
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