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Synthesis and Electrochemical Characterization of LiMn2O4 Cathode Materials for Lithium Polymer Batteries
Polymer Materials Laboratory, Chemical Sector, Samsung Advanced Institute of Technology, Taejon, Korea
Korean Journal of Chemical Engineering, July 1999, 16(4), 449-455(7), 10.1007/BF02698267
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Abstract
Spinel LiMn2O4 powders with sub-micron, narrow particle-size distribution, and phase-pure particles were synthesized at low temperatures from aqueous solution of metal acetate containing glyoxylic acid as a chelating agent by a sol-gel method. The effects of the calcination temperature and glyoxylic acid quantity on the physicochemical properties of spinel LiMn2O4 powders were examined with X-ray diffractometry(XRD), the Brunauer-Emmett-Teller(BET) method and scanning electron microscopy(SEM). Porous LiMn2O4 electrode was characterized electrochemically with charge/LiMn2O4 cell has been discussed in terms of contact and interfacial resistance by A.C. impedance spectroscopy.
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References
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