期刊
ELECTROCHIMICA ACTA
卷 399, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2021.139362
关键词
Lithium-ion battery; Mass spectrometry; Solid electrolyte interphase; Electrolyte additive; Electrolyte decomposition
资金
- Vehicle Technologies Office of the U.S. Department of Energy, under the Si Consortium Program
This review summarizes the recent advances in the analysis of electrolyte decomposition products and solid electrolyte interphases (SEIs) using mass spectrometry (MS) techniques. MS methods are demonstrated to be highly useful for characterization of battery systems by providing critical information about the chemical species generated during battery operation and electrolyte evolution.
Non-aqueous electrolyte liquids such as carbonate solvents have been widely employed in the commercial lithium-ion batteries and in the development of next-generation rechargeable batteries. The decomposition products of the organic electrolyte and additive molecules contribute to the formation of solid electrolyte interphases (SEIs) on the electrode surface, which have key impacts on battery's electrochemical performance. The rational engineering of electrolyte systems demands precise understanding of the electrochemical reaction pathways as well as the decomposition products of the electrolytes. Mass spectrometry (MS) is a well-established molecular analytical approach that can provide critical information for unambiguous structure assignment based on its mass-resolving power. In recent years, the application of MS for battery research has been expanding rapidly, providing valuable insights about the chemical species generated during battery operation and electrolyte evolution. This review aims to summarize the recent advances of MS technique-based analysis of electrolyte decomposition products as well as SEIs, and thus to demonstrate the high utility of MS methods for characterization of battery systems. (c) 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ )
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