journal6 ›› 2004, Vol. 25 ›› Issue (3): 64-67.

• Key disciplines • Previous Articles     Next Articles

Preparation and Characterization of LiFePO4/C as Cathode Material for Lithium Ion Batteries


  1. (College of Chemistry and Chemical Engineering, Jishou Uinversity,Jishou 416000,Hunan China)
  • Online:2004-09-15 Published:2012-09-22

Abstract: LiFePO4/C composite cathode materials for lithium-ion battery were synthesized by sol-gel method, and characterized by element analysis,X-ray diffraction (XRD), scanning electron microscopy (SEM). The electrochemical properties were tested using analogous cells. Results showed that LiFePO4/C were simple pure olive-type phase with uniform particle size of 1μm. LiFePO4/C showed a good charge-discharge voltage plateau at 3.4 V and higher capacity and better cyclability compared with LiFePO4.The first specific discharge capacities were 133 mAh/g, and 93.8% of which retained  after 20 times cycling at 60 ℃.

Key words: Li-ion batteries, cathode materials, lithium iron phosphate, composites

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