期刊
ACS NANO
卷 4, 期 3, 页码 1443-1450出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn901409q
关键词
silicon nanowires; carbon nanotubes; lithium-ion battery anodes
类别
资金
- King Abdullah University of Science and Technology (KAUST) Investigator Award [KUS-11-001-12]
- DOE Energy Frontier Research Center Award [DESC-001091]
Composite electrodes composed of silicon nanowires synthesized using the supercritical fluid-liquid-solid (SFLS) method mixed with amorphous carbon or carbon nanotubes were evaluated as Li-ion battery anodes. Carbon coating of the silicon nanowires using the pyrolysis of sugar was found to be crucial for making good electronic contact to the material. Using multiwalled carbon nanotubes as the conducting additive was found to be more effective for obtaining good cycling behavior than using amorphous carbon. Reversible capacities of 1500 mAh/g were observed for 30 cycles.
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