Janus interface enables reversible Zn-ion battery by regulating interfacial water structure and crystal-orientation.

ABSTRACT: To tackle the shortcomings of traditional battery systems, there has been much focus on aqueous Zn-ion batteries due to various advantages. However, they still suffer from poor stability of Zn anodes. Here, a methionine additive with unique Janus properties is proposed to regulate the behavior of the interface between Zn anodes and the electrolyte environment. Systematic characterizations as well as calculations elucidate that the Janus additive is adsorbed on the Zn anode via zincophilic -NH₂, changing the structure of the electric double layer and breaking the hydrogen bonding network among H₂O molecules through hydrophobic S-CH₃. At the same time, it can induce preferential formation of Zn(101) with high reversibility. The above two functions cont

SUBMITTER: Liang Y 

PROVIDER: S-EPMC10806643 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature