期刊
PHYSICA SCRIPTA
卷 T139, 期 -, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0031-8949/2010/T139/014021
关键词
-
资金
- National Research Council of Science & Technology (NST), Republic of Korea [2E21760] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Encapsulated porous TiO2-coated silicon (TiO2@Si) was prepared by a modified sol-gel method for use as the anode material of lithium secondary batteries. The shell around the porous TiO2 not only acts as a buffer matrix against the volume expansion of silicon during repeated charging-discharging, but also enhances the dispersion of silicon particles. The amount of the basic catalyst NH4OH during the sol-gel reaction plays an important role in the formation of the TiO2 coating structure, which significantly affects its electrochemical characteristics.
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