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2011 | 120 | 5 | 973-975
Article title

Raman Spectroscopy of LiFePO_4 and Li_3V_2(PO_4)_3 Prepared as Cathode Materials

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Languages of publication
EN
Abstracts
EN
Structure of samples of lithium iron vanadium phosphates of different compositions were investigated by X-rays, electron microscopy and Raman spectroscopy. The investigated salts were mainly of olivine-like and NASICON-like structures. The X-ray diffraction and the Raman scattering show different crystalline structures, which is probably caused by difference between cores of the crystallites (probed by X-rays) and their shells (probed by the Raman scattering). Most of the Raman spectra were identified with previously published data, however in the samples with high vanadium concentration we have observed new, not reported earlier modes at 835 cm^{-1} and 877 cm^{-1}, that we identified as oscillations related to V_2O_7^{4-} or VO_4^{3-} anions.
Keywords
EN
Contributors
  • Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland
author
  • Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland
author
  • Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland
author
  • Institute of High Pressure Physics, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland
  • Faculty of Materials Science and Eng., Warsaw Univ. of Technology, Wołoska 141, 02-507 Warsaw, Poland
author
  • Department of Materials Engineering, Tatung University, Taipei, Taiwan
author
  • Department of Materials Engineering, Tatung University, Taipei, Taiwan
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv120n545kz
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