Antimony-Carbon-Graphene Fibrous Composite as Freestanding Anode Materials for Sodium-ion Batteries

被引：42

作者：

Li, Kefei ^{[1
]}

Su, Dawei ^{[1
,2
]}

Liu, Hao ^{[1
]}

Wang, Guoxiu ^{[1
]}

机构：

[1] Univ Technol Sydney, Ctr Clean Energy Technol, Fac Sci, Sydney, NSW 2007, Australia

[2] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2500, Australia

来源：

ELECTROCHIMICA ACTA | 2015年 / 177卷

基金：

澳大利亚研究理事会;

关键词：

Antimony; anode materials; carbon fibers; graphene; sodium ion batteries; LONG-CYCLE LIFE; HIGH-CAPACITY; LITHIUM; STORAGE; ELECTRODES; SB; NANOCOMPOSITES; NANOPARTICLES; NANOFIBERS; CHALLENGES;

D O I：

10.1016/j.electacta.2015.03.115

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Antimony-carbon-graphene fibrous composites were prepared by the electrospinning/spray process as freestanding anodes for sodium-ion batteries. Antimony nanoparticles distribute in conductive carbonized polymer fibers and graphene flakes. The unique structure prevents the aggregation of the antimony nanoparticles and buffers the mechanical stress from volume change of antimony during repeated alloying/de-alloying process. The composites demonstrated an excellent electrochemical performance as anode material for sodium-ion batteries, with a reversible capacity of 274 mAh/g after 100 charge-discharge cycles at a current density of 100 mA/g. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：304 / 309

页数：6

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