Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7738087 | Journal of Power Sources | 2014 | 6 Pages |
Abstract
Si nanowires are successfully grown in porous carbon by supercritical fluid-liquid-solid (SFLS) process, which show high specific capacities and charge-discharge cycling stability as anode materials for Li-ion storage. The enhancement capacity and cycling stability of the Si nanowires/porous carbon composite nanostructures is attributed to the porous carbon serving as a highly conductive framework and absorption of volume changes of Si nanowires during the lithiation/delithiation process. At optimized condition, the Si nanowires/porous carbon electrodes maintain reversible capacities of 1678 mAh gâ1 for the 100th cycle at a current density of 420 mA gâ1, which is much better as compared to that of pure Si nanowires.
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Authors
Xiaoxu Zhao, Xianhong Rui, WenWen Zhou, Liping Tan, Qingyu Yan, Ziyang Lu, Huey Hoon Hng,