Journal
JOURNAL OF POWER SOURCES
Volume 125, Issue 2, Pages 206-213Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2003.07.019
Keywords
lithium ion battery; silicon; polyparaphenylene (PPP); polyvinyl chloride (PVC); disordered carbon; EIS
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Nano-silicon-based disordered carbon composites prepared by mechanical milling and pyrolysis have been examined as anodes of a lithium ion cell. Electrochemical measurements show that the charge-discharge capacity of disordered carbon composites incorporating both silicon-polyparaphenylene (Si-PPP) and silicon-polyvinyl chloride (Si-PVC) with differing silicon contents, decreases with increasing pyrolysis temperature. Si-PVC-based materials have a better cycle life than those based on Si-PPP at the same silicon content. (C) 2003 Elsevier B.V. All rights reserved.
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