Journal
SMALL
Volume 13, Issue 13, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201603754
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [51672044, 51472049, 51602049]
- Shanghai Pujiang Program [16PJ1400200]
- DHU Distinguished Young Professor Program
- Shanghai Education Commission Yangfan Program
- Fundamental Research Funds for the Central Universities
Ask authors/readers for more resources
Here a simple and an environmentally friendly approach is developed for the fabrication of Si-void@SiOx nanowires of a high-capacity Li-ion anode material. The outer surface of the robust SiOx backbone and the inside void structure in Si-void@SiOx nanowires appropriately suppress the volume expansion and lead to anisotropic swelling morphologies of Si nanowires during lithiation/delithiation, which is first demonstrated by the in situ lithiation process. Remarkably, the Si-void@SiOx nanowire electrode exhibits excellent overall lithium-storage performance, including high specific capacity, high rate property, and excellent cycling stability. A reversible capacity of 1981 mAh g(-1) is obtained in the fourth cycle, and the capacity is maintained at 2197 mAh g(-1) after 200 cycles at a current density of 0.5 C. The outstanding overall properties of the Si-void@SiOx nanowire composite make it a promising anode material of lithium-ion batteries for the power-intensive energy storage applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available