Solution-grown silicon nanowires for lithium-ion battery anodes.

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ACS nano, ISSN: 1936-086X, Vol: 4, Issue: 3, Page: 1443-50

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Chan, Candace K.; Patel, Reken N.; O’Connell, Michael J.; Korgel, Brian A.; Cui, Yi
American Chemical Society (ACS)
Engineering; Materials Science; Physics and Astronomy; Carbon nanotubes; Lithium-ion battery anodes; Silicon nanowires
article description
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.