Affiliation:
1. Research Institute for Advanced Manufacturing Department of Industrial and Systems Engineering The Hong Kong Polytechnic University Hung Hom Hong Kong P. R. China
2. Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education) Hubei Key Laboratory of Material Chemistry and Service Failure School of Chemistry and Chemical Engineering Huazhong University of Science and Technology (HUST) 1037 Luoyu Rd Wuhan 430074 P. R. China
3. State Key Laboratory of Ultraprecision Machining Technology the Hong Kong Polytechnic University Hung Hom Hong Kong P. R. China
Abstract
AbstractMultivalent metal batteries (MMBs) have been considered potentially high‐energy and low‐cost alternatives to commercial Li‐ion batteries, thus attracting tremendous research interest for energy‐storage applications. However, the plating and stripping of multivalent metals (i.e., Zn, Ca, Mg) suffer from low Coulombic efficiencies and short cycle life, which are largely rooted in the unstable solid electrolyte interphase. Apart from exploring new electrolytes or artificial layers for robust interphases, fundamental works on deciphering interfacial chemistry have also been conducted. This work is dedicated to summarizing the state‐of‐the‐art advances in understanding the interphases for multivalent metal anodes revealed by transmission electron microscopy (TEM) methods. Operando and cryogenic TEM with high spatial and temporal resolutions realize the dynamic visualization of the vulnerable chemical structures in interphase layers. Following a scrutinization of the interphases on different metal anodes, we elucidate their features for appealing multivalent metal anodes. Finally, perspectives are proposed for the remaining issues on analyzing and regulating interphases for practical MMBs.
Funder
Guangdong Provincial Department of Science and Technology
Subject
General Materials Science,General Chemistry