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- Cho, Jaephil
- Nano Energy Storage Material Lab.
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Superior Lithium Electroactive Mesoporous Si@Carbon Core-Shell Nanowires for Lithium Battery Anode Material
- Author(s)
- Kim, Hyesun, Cho, Jaephil
- Issued Date
- 2008-11
- Citation
- NANO LETTERS, v.8, no.11, pp.3688 - 3691
- Abstract
- Mesoporous Si@carbon core-shell nanowires with a diameter of ∼6.5 nm were prepared for a lithium battery anode material using a SBA-15 template. As-synthesized nanowires demonstrated excellent first charge capacity of 3163 mA h/g with a Coulombic efficiency of 86% at a rate of 0.2 C (600 mA/g) between 1.5 and 0 V in coin-type half-cells. Moreover, the capacity retention after 80 cycles was 87% and the rate capability at 2 C (6000 mA/g) was 78% the capacity at 0.2 C.
- Publisher
- AMER CHEMICAL SOC
- ISSN
- 1530-6984
- Keyword
- ION BATTERIES, SILICON NANOWIRES, TIN PHOSPHATE, STORAGE, GROWTH, COMPOSITES, LI, PERFORMANCE, INSERTION, GRAPHITE
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