Straightforward approach toward SiO2 nanospheres and their superior lithium storage performance

Jiguo Tu, Yan Yuan, Pan Zhan, Handong Jiao, Xindong Wang, Komin Shu, Shuqiang Jiao

研究成果: Article査読

76 被引用数 (Scopus)

抄録

SiO2 nanospheres were prepared according to a straightforward approach and evaluated as an anode material for lithium-ion batteries. The morphologies display that the obtained amorphous SiO2 powder has good uniform nanospheres with an average diameter of 400 nm. The SiO2 anode shows an initial charge capacity of 622.1 mAh g-1, and it still remains at 876.7 mAh g-1 even at a rate of 1 C over 500 cycles, showing a certain degree of increase. It can be considered that the superior performances are attributed to the partial generated Si, Li2O, and Li4SiO4 matrixes acting as a shielding layer, hence improving the lithium storage performance. In short, the discussed results suggest that SiO2 nanosphere is a promising anode material to improve the electrochemical performances for lithium-ion batteries.

本文言語English
ページ(範囲)7357-7362
ページ数6
ジャーナルJournal of Physical Chemistry C
118
14
DOI
出版ステータスPublished - 2014 4 10
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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