, Volume 7, Issue 3, pp 187–191 | Cite as

Significance of Mg doped LiMn2O4 spinels as attractive 4 V cathode materials for use in lithium batteries

  • R. Thirunakaran
  • N. Kalaiselvi
  • P. Periasamy
  • B. Ramesh Babu
  • N. G. Renganathan
  • N. Muniyandi
  • M. Raghavan


LiMn2O4 spinel is one of the most promising cathode materials for lithium-ion batteries because of its cheapness and eco-friendliness. Due to Jahn-Teller distortion, the capacity fades, however, upon repeated cycling. Attempts are being made to improve the cycle life of the spinel by substitution of manganese with other cations. In this paper we report the effect of partial substitution of manganese by Mg2+ ions in the LiMn2O4 phase. LiMgyMn2−yO4 (y=0 – 0.3) has been synthesized by a thermal method and characterized using XRD, TG/DTA and FTIR. The electrochemical performance is correlated with the dopant concentration.


Discharge Capacity Cathode Material Spinel Structure Solid State Ionic Simultaneous Thermal Analysis 
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Copyright information

© IfI - Institute for Ionics 2001

Authors and Affiliations

  • R. Thirunakaran
    • 1
  • N. Kalaiselvi
    • 1
  • P. Periasamy
    • 1
  • B. Ramesh Babu
    • 1
  • N. G. Renganathan
    • 1
  • N. Muniyandi
    • 1
  • M. Raghavan
    • 1
  1. 1.Advanced Batteries DivisionCentral Electrochemical Research InstituteKaraikudiIndia

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