期刊
JOURNAL OF ENERGY CHEMISTRY
卷 58, 期 -, 页码 198-206出版社
ELSEVIER
DOI: 10.1016/j.jechem.2020.09.030
关键词
Li-metal battery; Anode; Dendrite; Interface chemistry; Interphase
资金
- National Natural Science Foundation of China [21872058]
This review summarizes strategies developed recently to stabilize the Li/electrolyte interface by constructing protective interphases on Li-metal anodes. It outlines the current understanding of the instability of the Li/electrolyte interface, illustrates artificial interphases constructed recently, and prospects possible approaches to acquire more efficiently protective interphases.
Li-metal is an ideal anode that can provide rechargeable batteries with high energy density, but its application in large scale is restricted by its high activity that leads to the severe decomposition of electrolyte components (solvents and salts) and the growth of Li dendrites. These parasitic reactions are responsible for the cycle life deterioration and the safety accidents of rechargeable Li-metal batteries. Correspondingly, much effort has been made to regulate Li/electrolyte interface chemistry. In this review, we summarize some strategies that have been developed recently to stabilize Li/electrolyte interface by constructing protective interphases on Li-metal anodes. Firstly, the currently available understandings on the instability of Li/electrolyte interface are outlined. Then, artificial interphases recently constructed ex-situ and in-situ are illustrated in detail. Finally, possible approaches to acquire more efficiently protective interphases are prospected. (C) 2020 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.
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