Preparation of SiO2/rGO/CNTs composite and application for lithium-ion- battery anodes

被引：10

作者：

Lan, Xiaoyan ^{[1
]}

Zhou, Xinglan ^{[1
]}

Jiao, Zipan ^{[1
]}

Wang, Kunjie ^{[1
]}

Liu, Bingxin ^{[1
]}

Zhang, Peng ^{[1
]}

Xu, Benhua ^{[2
]}

机构：

[1] Qinghai Univ, Qinghai Prov Engn Res Ctr High Performance Light M, Qinghai Prov Key Lab New Light Alloys, Xining 810016, Peoples R China

[2] Qinghai Univ, Chem Engn Coll, Xining 810016, Peoples R China

来源：

MATERIALS LETTERS | 2023年 / 353卷

关键词：

SiO2; Carbon materials; Carbon nanotubes; Lithium-ion batteries; Energy storage and conversion;

D O I：

10.1016/j.matlet.2023.135300

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To mitigate the volume expansion of SiO2 during the processes of charging and discharging, SiO2/rGO/CNTs composite was fabricated as lithium-ion-battery anode. Within this composite, CNTs are dispersed on the flexible rGO, serving as the supporting framework and conductive bridge of SiO2/rGO. This unique arrangement effectively mitigates the volume expansion of SiO2 as well as concurrently enhances its conductivity, resulting in significant improvement of electrochemical performances. As a result, the SiO2/rGO/CNTs anode exhibits an initial discharge capacity of 1521 mA h g-1, with a sustained capacity of 612 mA h g-1 after 200 cycles at 1 A g-1.

引用

页数：4

共 7 条

[1] A Review: The Development of SiO2/C Anode Materials for Lithium-Ion Batteries [J].