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Synthesis of single-crystalline LiFePO4 with rhombus-like morphology
journal contribution
posted on 2014-11-28, 00:00 authored by Y Qiao, L Pan, Li He, Ludovic Dumee, Lingxue KongLingxue Kong, M Zhao, L Wang, Weimin GaoIn this investigation, carbon-coated LiFePO4 cathode materials were synthesized with a facile hydrothermal method. The structure and electrochemical properties of the materials were investigated by X-ray diffraction (XRD), Roman, transmission electron microscopy-energy dispersive spectroscopy (TEM-EDS), and electrochemical impedance spectroscopy (EIS). By adjusting the mixing concentration of starting materials, a single-crystalline LiFePO4 with an anisotropic rhombus morphology (Space Group: Pmnb No. 62) were successfully synthesized. In addition, the carbon coated on the surface of LiFePO4 material prepared has a lower ID/IG (0.80), which indicates an optimized carbon structure with an increased amount of sp2-type carbon. Electrochemical performance test shows that the carbon-coated LiFePO4 cathode materials have an initial discharge capacity of 146 mAh g−1 at 0.2C.
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Journal
IonicsPagination
1 - 5Publisher
SpringerLocation
Heidelberg, GermanyPublisher DOI
ISSN
0947-7047eISSN
1862-0760Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2014, SpringerUsage metrics
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