One-dimensional SiOC/C composite nanofibers as binder-free anodes for lithium-ion batteries

被引：45

作者：

Li, Ying ^{[1
]}

Hu, Yi ^{[2
]}

Lu, Yao ^{[1
]}

Zhang, Shu ^{[1
]}

Xu, Guanjie ^{[1
]}

Fu, Kun ^{[1
]}

Li, Shuli ^{[1
]}

Chen, Chen ^{[1
]}

Zhou, Lan ^{[2
]}

Xia, Xin ^{[3
]}

Zhang, Xiangwu ^{[1
]}

机构：

[1] N Carolina State Univ, Dept Text Engn Chem & Sci, Fiber & Polymer Sci Program, Raleigh, NC 27695 USA

[2] Zhejiang Sci Tech Univ, Engn Res Ctr Ecodyeing & Finishing Text, Hangzhou 310018, Zhejiang, Peoples R China

[3] Xinjiang Univ, Coll Text & Clothing, Urumqi 830046, Xinjiang, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2014年 / 254卷

基金：

美国国家科学基金会;

关键词：

Polymer derived ceramic; Silicon oxycarbide; Electrospinning; Carbon nanofiber; Lithium-ion battery; Anode; ENHANCED RATE CAPABILITY; CARBON NANOFIBERS; LI; CHALLENGES; GRAPHITE;

D O I：

10.1016/j.jpowsour.2013.12.044

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

One-dimensional silicon oxycarbide (SiOC)/C composite nanofibers were fabricated by electrospinning and subsequent heat treatment. Introducing carbon matrix to SiOC anode material is an efficient way to accommodate the large volume changes during cycling and also increase the amount of free carbon, which is beneficial for improving the reversible capacity. These SiOC/C composite nanofibers form freestanding conductive membranes that can be used directly as battery electrodes without adding carbon black or polymer binder. Results show that after 80 cycles, the discharge capacity of SiOC/C composite nanofiber anodes is 70% higher than that of Si/C nanofiber anodes and more than 1.5 times larger than those of commercial anodes made from graphite. It is, therefore, demonstrated that one-dimensional SiOC/C nanofibers are promising anode material with large capacities and good cycling stability. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：33 / 38

页数：6

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