期刊
JOURNAL OF POWER SOURCES
卷 195, 期 15, 页码 5019-5024出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2010.02.005
关键词
Carbon anode; Cyclic voltammogram; X-ray diffraction; Turbostratic structure
The Li ion battery with high power and long life is required for the hybrid electronic vehicle. A new carbon anode material called ICOKE has been prepared by the graphitization of coke at ca. 2000 degrees C and is shown to have excellent pulse charge/discharge characteristics and long cycle performance. The charge/discharge reaction mechanism of ICOKE was investigated in detail based on the result of cyclic voltammetry and X-ray diffraction profile change of ICOKE before and after charging. As a result, it was found that Li-intercalation reaction to ICOKE proceeds without forming higher stage compounds and the 1st and the 2nd stage compounds are directly formed. (C) 2010 Elsevier B.V. All rights reserved.
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