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Article | Open Access

Effects of Silver Nanowires on The Electrochemical Performance of LiFePO4

Dapeng Chen1,2, Gang Zhu1, Xingong Zhu1, Xueliang Qiao2( ), Jianguo Chen2
Wuhan Institute of Marine Electric Propulsion, CSIC, Wuhan, 430064, Hubei, P.R. China
State Key Laboratory of Plastic Forming Simulation and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, P.R. China
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Abstract

Lithium iron phosphate (LiFePO4) is a promising cathode material for lithium-ion batteries. However, an important drawback of this material is its poor conductivity. In this approach, a simple approach is firstly proposed to enhance the conductivity of LiFePO4 cathodes by dispersing conductive Ag nanowires to these cathodes. LiFePO4/Ag nanowires composite cathodes were characterized by X-ray diffraction (XRD) and field emission scanning electron microscope (FSEM), and their electrochemical performance were evaluated by charge/discharge tests. It is demonstrated that the capacity and rate capability of LiFePO4/Ag nanowires composite cathodes can be improved considerably by the addition of Ag nanowires. Especially, discharge capacities are improved from ~110 mAh g-1 of LiFePO4 cathodes to ~150 mAh g-1 for LiFePO4/Ag nanowires composite cathodes at 0.2 C. Therefore, LiFePO4/Ag nanowires cathodes can be used as an attractive positive electrode candidate for lithium-ion batteries.

Keywords

electrochemical performanceconductivityNanostructuresLiFePO4Ag nanowires

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Nano Biomedicine and Engineering
Volume 3 Issue 1,
March 2011
Pages 19-24
DOI: 10.5101/nbe.v3i1.p19-24
Cite this article:
Chen D, Zhu G, Zhu X, et al. Effects of Silver Nanowires on The Electrochemical Performance of LiFePO4. Nano Biomedicine and Engineering, 2011, 3(1): 19-24. https://doi.org/10.5101/nbe.v3i1.p19-24

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Published: 31 March 2011
© 2011 D. Chen, et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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