V(2)O(5)-C-SnO(2) Hybrid Nanobelts as High Performance Anodes for Lithium-ion Batteries.

V(2)O(5)-C-SnO(2) Hybrid Nanobelts as High Performance Anodes for Lithium-ion Batteries.
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V2O5-C-SnO2 混合纳米带作为锂离子电池的高性能负极

DOI:
10.1038/srep33597
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发表时间:
2016-09-28
期刊:
影响因子:
4.6
通讯作者:
Cheng C
Cheng C
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Zhang L;Yang M;Zhang S;Wu Z;Amini A;Zhang Y;Wang D;Bao S;Lu Z;Wang N;Cheng C

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金属氧化物纳米复合材料的上级性能使其成为新兴能源的优秀候选者,近年来引起了人们的极大关注。这些材料的缺点是其固有的结构粉碎,这对其性能产生不利影响,并使稳定的纳米复合材料的合理设计成为一个巨大的挑战。在这项工作中,功能的V2 O 5-C-SnO 2杂化纳米带(VCSNs)与一个稳定的结构被引入其中的超分散的SnO 2纳米晶体与葡萄糖的V2 O 5表面紧密相连。纳米结构的V2 O 5充当支撑基质以及活性电极组分。与现有的碳-V2 O 5杂化纳米带相比,这些杂化纳米带在用作锂离子电池的阳极材料时表现出高得多的可逆容量和结构稳定性。VCSN的上级循环性能的优异表现可归因于SnO 2和V2 O 5的协同效应。然而,在锂离子电池设计中,可用于V2 O 5基阳极的数据有限。
The superior performance of metal oxide nanocomposites has introduced them as excellent candidates for emerging energy sources, and attracted significant attention in recent years. The drawback of these materials is their inherent structural pulverization which adversely impacts their performance and makes the rational design of stable nanocomposites a great challenge. In this work, functional V2O5-C-SnO2 hybrid nanobelts (VCSNs) with a stable structure are introduced where the ultradispersed SnO2 nanocrystals are tightly linked with glucose on the V2O5 surface. The nanostructured V2O5 acts as a supporting matrix as well as an active electrode component. Compared with existing carbon-V2O5 hybrid nanobelts, these hybrid nanobelts exhibit a much higher reversible capacity and architectural stability when used as anode materials for lithium-ion batteries. The superior cyclic performance of VCSNs can be attributed to the synergistic effects of SnO2 and V2O5. However, limited data are available for V2O5-based anodes in lithium-ion battery design.
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