期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 7, 期 12, 页码 1380-1384出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2005.09.021
关键词
lithium-ion batteries; metal oxide; propylene carbonate; DEMS; SNIFTIRS; ATR
In situ differential electrochemical mass spectrometry (DEMS) and in situ subtractively normalized interfacial Fourier transform infrared spectroscopy (SNIFTIRS)were used to Study the oxidative decomposition products of a propylene carbonate (PC) containing battery electrolyte at metal oxide electrodes. Hydrogen, carbon dioxide, ethane, ethene, propane and propene are typically evolved during electrolyte decomposition in lithium-ion batteries. In Our SNIFTIRS and DEMS experiments, additional signals were detected which Could not be attributed to these known products. Detailed analysis of these signals indicated the possible evolution of acetone as PC is oxidatively decomposed oil the electrode surface. (c) 2005 Elsevier B.V. All rights reserved.
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