期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 18, 页码 5072-5075出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201801737
关键词
acetonitrile; electrochemistry; electrolytes; lithium metal anodes; solid-electrolyte interface
资金
- National Sciences and Engineering Research Council of Canada (NSERC)
- Hutchinson Aeronautics Industry
- Total (NSERC Collaborative Research and Development Grant) [RDCPJ468656-14]
The resurgence of the lithium metal battery requires innovations in technology, including the use of non-conventional liquid electrolytes. The inherent electrochemical potential of lithium metal (-3.04V vs. SHE) inevitably limits its use in many solvents, such as acetonitrile, which could provide electrolytes with increased conductivity. The aim of this work is to produce an artificial passivation layer at the lithium metal/electrolyte interface that is electrochemically stable in acetonitrile-based electrolytes. To produce such a stable interface, the lithium metal was immersed in fluoroethylene carbonate (FEC) to generate a passivation layer via the spontaneous decomposition of the solvent. With this passivation layer, the chemical stability of lithium metal is shown for the first time in 1m LiPF6 in acetonitrile.
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