SiO2/C Composite Derived from Rice Husks with Enhanced Capacity as Anodes for Lithium-Ion Batteries

被引：36

作者：

Feng, Yi ^{[1
]}

Liu, Xiaoyang ^{[1
]}

Liu, Li ^{[2
]}

Zhang, Ziqing ^{[1
]}

Teng, Yifei ^{[1
]}

Yu, Deyang ^{[1
]}

Sui, Jiayang ^{[1
]}

Wang, Xiaofeng ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, 2699 Qianjin St, Changchun 130012, Jilin, Peoples R China

[2] Northeast Normal Univ, Dept Chem, Changchun 130024, Jilin, Peoples R China

来源：

CHEMISTRYSELECT | 2018年 / 3卷 / 37期

关键词：

Ball mill; Lithium ion batteries; Rice husks; SiO2/C composite; CARBON; PERFORMANCE; SILICA; STORAGE; NANOCOMPOSITE; NANOPARTICLES; REDUCTION; ELECTRODE; BEHAVIOR; OXIDE;

D O I：

10.1002/slct.201802353

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

High-capacity SiO2/C composites with uniform distribution, rice husks (RHs) as raw materials, were scalably prepared by the ball milling method. Based on a fact that the porous SiO2 nanoparticles and carbon in RHs possess natural properties, ball mill could visibly decrease grain sizes of clustering SiO2 particles and C blocks and then improve the dispersivity of the two components, finally forming desirable SiO2/C composite, which can generate more active sites for Li+ storage as well as can effectively buffer the volume change during cycling. Therefore, SiO2/C composites, evaluated as anode for lithium ion batteries, exhibited an excellent electrochemical performance, especially the highly reversible capacity of 827 mA h g(-1) over 300 cycles at 100 mA g(-1) and 530 mA h g(-1) at the large rate of 500 mA g(-1), which suggests that the facile ball mill with environmental friendliness and large-scale preparation may be available for electrode materials derived from biomass.

引用

页码：10338 / 10344

页数：7

共 47 条

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