A fluoride ion-mediated continuous etching-redeposition strategy to synthesize Si nanocomposites with appropriate SiO2 coating layers for Li-ion batteries

被引：15

作者：

Fan, Xiaoming ^{[1
,2
]}

Zhao, Junhao ^{[1
]}

Yang, Zeheng ^{[1
]}

Zhang, Weixin ^{[1
]}

机构：

[1] Hefei Univ Technol, Sch Chem & Chem Engn, Anhui Prov Key Lab Adv Catalyt Mat & React Engn, Hefei 230009, Anhui, Peoples R China

[2] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2018年 / 54卷 / 88期

关键词：

SILICON NANOWIRES; ANODE MATERIALS; DESIGN;

D O I：

10.1039/c8cc05034a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Silicon nanocomposites with surface coating have been promising candidates for high-performance anodes in Li-ion batteries. Here we report a simple yet effective way to synthesize Si@SiO2 nanocomposites with amorphous SiO2 coating through a fluoride ion-mediated continuous etching-redeposition process. The Si@SiO2 nanocomposite anode exhibits significantly improved lithium storage properties, with a reversible capacity of 1356 mA h g(-1) at 2.1 A g(-1) for 300 cycles.

引用

页码：12447 / 12450

页数：5

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