Energy Storage Science and Technology ›› 2019, Vol. 8 ›› Issue (1): 1-13.doi: 10.12028/j.issn.2095-4239.2018.0131

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Differential electrochemical mass spectroscopy: A pivotal technology for investigating lithium-ion batteries

ZHAO Zhiwei1,2, PENG Zhangquan1,2   

  1. 1 State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, University Chinese Academy of Sciences, Changchun 130022, Jilin, China;
    2 University of Science and Technology of China, Hefei 230026, Anhui, China
  • Received:2018-07-27 Revised:2018-08-24 Online:2019-01-01 Published:2018-08-28

Abstract: Safety issues of lithium-ion batteries are becoming prominent with its application in electric vehicle and large-scale energy storage fields. Flammable gases evolved from electrode|electrolyte interface play an important role on the batteries' safety characteristics. Fortunately, differential electrochemical mass spectrometry (DEMS) as a powerful technology provides exploitable strategies for understanding the gas-related parasitic reaction mechanisms. The review covers the history, basics, know-how, and applications in safety researches of DEMS. In addition, emerging opportunities, critical challenges, future directions and strategies are particularly highlighted.

Key words: differential electrochemical mass spectrometry, lithium-ion battery, safety

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