期刊
ELECTROCHIMICA ACTA
卷 53, 期 8, 页码 3267-3270出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2007.10.078
关键词
anion receptor; tripropyl borate; impedance; life; lithium-ion battery
Tripropyl borate was investigated as a low cost anion receptor to improve the performance of lithium-ion cells. The impact of tripropyl borate was examined using lithium-ion cells comprising a negative electrode of mesocarbon microbeads, a positive electrode of Li-1.1[Mn1/3Ni1/3Co1/3](0.9)O-2 and an LiPF6-based electrolyte. It was found that the performance of the cells was improved by adding a proper amount of tripropyl borate (<= 0.1 wt%) to the LiPF6-based electrolyte. However, a small amount of gas was observed from cells with high contents of tripropyl borate when cycled at 55 degrees C, and as a result, the performance of the cells deteriorated. (C) 2007 Published by Elsevier Ltd.
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