Journal
ADVANCED MATERIALS
Volume 24, Issue 4, Pages 533-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201103044
Keywords
thermal conductivity; silicon; electrodes; carbon nanotubes; Li-ion
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Funding
- Fred L. Hartley Family Foundation
- NASA [NNC08CB01C]
- Robert Shackelford fellowship
- Winston Chung Global Energy Center
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Vapor deposition techniques were utilized to synthesize very thick (similar to 1 mm) Li-ion battery anodes consisting of vertically aligned carbon nanotubes coated with silicon and carbon. The produced anode demonstrated ultrahigh thermal (>400 W.m(-1).K-1) and high electrical (>20 S.m(-1)) conductivities, high cycle stability, and high average capacity (>3000 mAh.g(Si)(-1)). The processes utilized allow for the conformal deposition of other materials, thus making it a promising architecture for the development of Li-ion anodes and cathodes with greatly enhanced electrical and thermal conductivities.
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