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Cho, Jaephil
Nano Energy Storage Materials Lab (NESM)
Research Interests
  • Li-ion battery, metal-air battery, redox-flow battery, flexible battery .

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Silicon Nanotube Battery Anodes

Cited 451 times inthomson ciCited 398 times inthomson ci
Title
Silicon Nanotube Battery Anodes
Author
Park, Mi-HeeKim, Min GyuJoo, JaebumKim, KitaeKim, JeyoungAhn, SoonhoCui, YiCho, Jaephil
Keywords
Alumina template; Battery anodes; Capacity retention; Charge capacities; Coulombic efficiency; Reductive decomposition; Silicon nanotubes; Silicon precursors
Issue Date
200912
Publisher
AMER CHEMICAL SOC
Citation
NANO LETTERS, v.9, no.11, pp.3844 - 3847
Abstract
We present Si nanotubes prepared by reductive decomposition of a silicon precursor in an alumina template and etching. These nanotubes show impressive results, which shows very high reversible charge capacity of 3247 mA h/g with Coulombic efficiency of 89%, and also demonstrate superior capacity retention even at 5C rate (=15 A/g). Furthermore, the capacity in a Li-ion full cell consisting of a cathode of LiCoO(2) and anode of Si nanotubes demonstrates a 10 times higher capacity than commercially available graphite even after 200 cycles.
URI
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DOI
http://dx.doi.org/10.1021/nl902058c
ISSN
1530-6984
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ECHE_Journal Papers

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