Journal
NANO LETTERS
Volume 8, Issue 11, Pages 3688-3691Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl801853x
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Funding
- MKE/IITA [2008-F-019-01]
- National Research Foundation of Korea [과C6A2605] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Mesoporous Si@carbon core-shell nanowires with a diameter of similar to 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.
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