Journal of Inorganic Materials

• Research Paper • Previous Articles     Next Articles

Progress in Synthetic Methods of Cathode Material LiMxMn2-xO4 for Lithium Ion Batteries

KANG Kai; DAI Shou-Hui; WAN Yu-Hua   

  1. National Key Laboratory for Nuclear Fuel & Materials; Nuclear Power Institute of China; Chengdu 610041; China
  • Received:2000-06-12 Revised:2000-08-07 Published:2001-07-20 Online:2001-07-20

Abstract: Spinel LiMn2O4 is a promising candidate for substitution of LiCoO2 as the cathode
material for Lithium ion batteries, of which the crystal structure was described in detail. The synthetic methods for the preparation
of LiMxMn2-xO4 developed in recent years were reviewed, including “solid-state reaction methods”such as high temperature
solid-state reaction, microwave sintering, and solid-state coordination reaction, etc., and “soft-chemistry synthetic methods”such as pechini
synthesis, sol-gel method and micro-emulsion method etc. The advantages & drawbacks of each method were compared and analyzed. Of all the methods
described herein, the solid-state coordination reaction method developed by the author is quite a new one for preparing LiMxMn2-xO4, which has
wide application prospects. Compared to the traditional high temperature solid-state reaction method, this new one not only maintains all the former’s
merits such as simple to operate and easy to manufacture in large-scale, but also has many advantages such as low calcination temperature, short
calcination time, and good morphology & small particulate as well as easy control of stoichiometry, etc.

Key words: spinel LiMxMn2-xO4, crystal structure, solid-state synthesis, soft-chemistry synthesis, Li-ion battery

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