English, Article edition: SYNTHESIS AND CHARACTERIZATION OF LiFePO4/C PREPARED VIA A SOLâGEL METHOD YAN LIN; HONGGE PAN; MINGXIA GAO; ...

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Physical Description
  • article
Language
  • English

Edition details

Title
  • SYNTHESIS AND CHARACTERIZATION OF LiFePO4/​C PREPARED VIA A SOLâGEL METHOD
Author
  • YAN LIN
  • HONGGE PAN
  • MINGXIA GAO
  • HE MIAO
  • SHOUQUAN LI
  • YUE WANG
Physical Description
  • article
Notes
  • Carbon-coated lithium ion phosphate was synthesized from a gel precursor with ferric iron and a carbon source of organic chelating agent via a solâgel method. The dependence of the microstructure and electrochemical performance of the synthesized LiFePO4/​C on the pH value of the precursor solution during gel formation and the sintering time was investigated. The obtained LiFePO4/​C particles were characterized by X-ray diffraction, field-emission scanning electron microscopy, and element analysis. The results show that the pH value has little effect on the phase purity. At a sintering temperature of 700°C, the discharge capacity of LiFePO4/​C under 0.1 C (1 C =​ 170 mA/​g) regime decreased from 152.8 to 62.5 mAh/​g with decreasing the sintering time from 12 h to 8 h. Appropriate sintering time can lead to well-crystallized LiFePO4/​C, which improves the electrochemical performance.
  • LiFePO4/​C, solâgel, pH, sintering time
  • RePEc:wsi:srlxxx:v:15:y:2008:i:01:p:133-138
Language
  • English
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