Advances in Chemical Engineering and Science

Volume 6, Issue 2 (April 2016)

ISSN Print: 2160-0392   ISSN Online: 2160-0406

Google-based Impact Factor: 1.41  Citations  h5-index & Ranking

Electrochemical Performance of LiFePO4/C via Coaxial and Uniaxial Electrospinning Method

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DOI: 10.4236/aces.2016.62017    2,742 Downloads   4,334 Views  Citations

ABSTRACT

In this work, LiFePO4/C (LFP/C) cathode materials with superior electrochemical performance have been prepared by coaxial and uniaxial electrospinning method. The electrode materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Also, cyclic voltammetry (CV), galvanostatic charge-discharge, and electrochemical impedance spectroscopy (EIS) measurements were performed on these materials. The experimental results indicate that the electrochemical properties of LFP/C-C, such as specific capacity, coulombic efficiency, Li+ diffusion coefficient and overpotential are significantly improved. The enhanced electrical conductivity and polarization of the LFP/C-C electrode are mainly due to its porous morphology and amorphous carbon coating layer.

Share and Cite:

Hu, Y. , Gu, D. , Jiang, H. , Wang, L. , Sun, H. , Wang, J. and Shen, L. (2016) Electrochemical Performance of LiFePO4/C via Coaxial and Uniaxial Electrospinning Method. Advances in Chemical Engineering and Science, 6, 149-157. doi: 10.4236/aces.2016.62017.
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