journal6 ›› 2004, Vol. 25 ›› Issue (4): 53-57.

• Key disciplines • Previous Articles     Next Articles

Studies on the Interfacial Process of Lithium Ion in the Cathode Material of LiMn2O4


  1. (College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,Hunan China)
  • Online:2004-12-15 Published:2012-09-22

Abstract: The interfacial process of lithium ion in the cathode material of LiMn2O4 was investigated through the technique of impedance spectroscopy.The results show that the semicircle in the high frequency range is associated with the resistance and capacitance caused by the absorption of lithium ion of electrolyte onto the surface of LiMn2O4The semicircle in the middle frequency range is caused by the charge-transfer resistance and double-layer capacitance.The inclined line in the low frequency range is caused by the diffusion of lithium ion in LiMn2O4.

Key words: Lithium ion, interfacial process, impedance

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