期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 33, 期 -, 页码 72-75出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2013.05.001
关键词
Silicon electrode; Li-ion batteries; NMR; SEI
Few studies relate that the failure mechanism of silicon-based electrodes is the SEI formation. In this work, we used quantitative solid-state high-resolution nuclear magnetic resonance to show that main cause of irreversible capacity is not the decomposition of lithium salt but the degradation of electrolyte solvent with the formation of non lithiated carbon species as polymer or oligomers. (c) 2013 Elsevier B.V. All rights reserved.
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