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- Cho, Jaephil
- Nano Energy Storage Material Lab.
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Germanium Nanotubes Prepared by Using the Kirkendall Effect as Anodes for High-Rate Lithium Batteries
- Author(s)
- Park, Mi-Hee, Cho, YongHyun, Kim, Kitae, Kim, Jeyoung, Liu, Meilin, Cho, Jaephil
- Issued Date
- 2011-10
- Citation
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.50, no.41, pp.9647 - 9650
- Abstract
- Ultralong germanium nanotubes (Ge NTs; see picture) are synthesized in high yield from core-shell Ge-Sb nanowires by utilizing the Kirkendall effect at 700 °C. The Ge NTs have an exceptionally high rate capability (40 Ag -1) while maintaining a reversible capacity of more than 1000 mAhg -1 over 400 cycles, with minimal capacity fading when paired with a LiCoO 2 cathode in a lithium-ion cell.
- Publisher
- WILEY-V C H VERLAG GMBH
- ISSN
- 1433-7851
- Keyword (Author)
- anodes, germanium, Kirkdendall effect, lithium battery, nanotubes
- Keyword
- LI-ION BATTERIES, HOLLOW, NANOWIRES, DIFFUSION, SILICON, GE, NANOCOMPOSITE, NANOPARTICLES, STORAGE
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