A Deep Reduction and Partial Oxidation Strategy for Fabrication of Mesoporous Si Anode for Lithium Ion Batteries

ACS Nano
Jianwen LiangYitai Qian

Abstract

A deep reduction and partial oxidation strategy to convert low-cost SiO2 into mesoporous Si anode with the yield higher than 90% is provided. This strategy has advantage in efficient mesoporous silicon production and in situ formation of several nanometers SiO2 layer on the surface of silicon particles. Thus, the resulted silicon anode provides extremely high reversible capacity of 1772 mAh g(-1), superior cycling stability with more than 873 mAh g(-1) at 1.8 A g(-1) after 1400 cycles (corresponding to the capacity decay rate of 0.035% per cycle), and good rate capability (∼710 mAh g(-1) at 18A g(-1)). These promising results suggest that such strategy for mesoporous Si anode can be potentially commercialized for high energy Li-ion batteries.

References

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Feb 3, 2012·Chemical Communications : Chem Comm·Mei-Pin LiuXiao-Zeng You
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Citations

Jun 23, 2016·Physical Chemistry Chemical Physics : PCCP·Benjamin BardetGaël Gautier
May 18, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Xianyu LiuYitai Qian
Jun 30, 2018·Chemical Society Reviews·Longlong WangLiquan Chen
Jun 2, 2018·ACS Applied Materials & Interfaces·Yaxiong YangHongge Pan
May 3, 2019·ACS Applied Materials & Interfaces·Yuanchao ZhuYitai Qian
Apr 20, 2019·ACS Applied Materials & Interfaces·Jiakun ZhuHui Yang

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