title: A Deep Reduction and Partial Oxidation Strategy for Fabrication of Mesoporous Si Anode for Lithium Ion Batteries.
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.
authors.affiliation: Hefei National Laboratory for Physical Science at Microscale, Department of Chemistry, University of Science and Technology of China , 96 JinZhai Road, Hefei 230026, China.|School of Chemistry and Chemical Engineering, Shandong University , Jinan, Shandong 250100, P. R. China.
authors.forename: Jianwen
authors.initials: J
authors.lastname: Liang
authors.affiliation: Hefei National Laboratory for Physical Science at Microscale, Department of Chemistry, University of Science and Technology of China , 96 JinZhai Road, Hefei 230026, China.
authors.forename: Xiaona
authors.initials: X
authors.lastname: Li
authors.affiliation: Hefei National Laboratory for Physical Science at Microscale, Department of Chemistry, University of Science and Technology of China , 96 JinZhai Road, Hefei 230026, China.
authors.forename: Zhiguo
authors.initials: Z
authors.lastname: Hou
authors.affiliation: Hefei National Laboratory for Physical Science at Microscale, Department of Chemistry, University of Science and Technology of China , 96 JinZhai Road, Hefei 230026, China.
authors.forename: Wanqun
authors.initials: W
authors.lastname: Zhang
authors.affiliation: Hefei National Laboratory for Physical Science at Microscale, Department of Chemistry, University of Science and Technology of China , 96 JinZhai Road, Hefei 230026, China.
authors.forename: Yongchun
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: Hefei National Laboratory for Physical Science at Microscale, Department of Chemistry, University of Science and Technology of China , 96 JinZhai Road, Hefei 230026, China.|School of Chemistry and Chemical Engineering, Shandong University , Jinan, Shandong 250100, P. R. China.
authors.forename: Yitai
authors.initials: Y
authors.lastname: Qian
keywords: general strategy; high stabilization; lithium ion batteries; mesoporous; silicon