image: This review aims to comprehensively summarize and discuss the electrochemically and chemically in-situ interfacial protection layers, as well as propose a systematic and rigorous scheme to guide the precise design of in-situ interface for zinc anodes with stability and reversibility.
Credit: ©Science China Press
This study is led by Prof. Guozhao Fang (School of Materials Science and Engineering, Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province, Central South University).
Aqueous zinc metal batteries (AZMBs) have emerged as an attractive candidate for highly safe large-scale energy storage system. However, AZMBs still confront serious challenges, such as Zn dendrite formation and side reactions, which severely limit the practicality of AZMBs. In-situ interfacial layer strategies have been proven to be very effective for the stability of Zn anodes, which is also advantageous for large-scale production. Despite the progress made with the in-situ interface layer strategies, there remains a lack of systematic reviews concerning in-situ interfacial layers for Zn anodes.
The research team led by Prof. Guozhao Fang from Central South University has systematically summarized various in-situ interfacial modification methods, focusing on their research advances, process technologies, protection mechanisms and design considerations. Electrochemically in-situ protection strategies depend on the electrolyte additives and functional electrolyte components. Chemically in-situ protection strategies include wet chemistry (e.g. etching, displacement reaction, self-assembling), chemical vapor deposition, electrochemical pretreatment and so on. Constructing an in-situ interfacial layer on the Zn anode effectively mitigates corrosion and Zn dendrites. More significantly, several key issues faced by in-situ interfacial protection strategies were further raised. The final part particularly emphasized a systematic and rigorous plan for precisely designing a highly stable and reversible in-situ interface for practical zinc anodes.
See the article:
Electrochemically and chemically in-situ interfacial protection layers towards stable and reversible Zn anodes
https://doi.org/10.1016/j.scib.2024.10.025
Journal
Science Bulletin