High lithium storage performance of α-Fe2O3/graphene nanocomposites as lithium-ion battery anodes

被引:80
作者
Xue, Xin-Yu [1 ]
Ma, Chun-Hua [1 ]
Cui, Chun-Xiao [1 ]
Xing, Li-Li [1 ]
机构
[1] Northeastern Univ, Coll Sci, Shenyang 110004, Peoples R China
基金
高等学校博士学科点专项科研基金;
关键词
Nanocomposites; Graphene; Iron oxide; Lithium-ion battery; ELECTROCHEMICAL PROPERTIES; CARBON; GRAPHENE; GROWTH; NANOPARTICLES; NANOTUBES; COMPOSITE; ELECTRODES; CAPACITY; ROUTE;
D O I
10.1016/j.solidstatesciences.2011.05.015
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Uniformly loaded alpha-Fe2O3/graphene nanocomposites are synthesized via hydrothermal routs. Enhanced lithium storage performance of lithium-ion battery anodes is realized from alpha-Fe2O3/graphene nanocomposites. Compared with pure alpha-Fe2O3 nanostructures, alpha-Fe2O3/graphene nanocomposites exhibit higher reversible capacity and better cycling performance. Their reversible capacity is up to 771 mA h g(-1) at C/10 rate, and maintains 73% after 30 cycles. Such behaviors can be attributed to high electron and Li-ion conductivity, large surface area, good mechanical flexibility of graphene nanosheets and the synergetic effect of graphene and alpha-Fe2O3 nanostructures. Our results indicate that alpha-Fe2O3/graphene nanocomposites are good candidates for high performance lithium-ion battery anodes. (C) 2011 Elsevier Masson SAS. All rights reserved.
引用
收藏
页码:1526 / 1530
页数:5
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