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S. Sarciaux, A. Verbaere, Y. Piffard, D. Guyomard (1999)
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The spinel LiMn2O4 is a very promising cathode material with economical and environmental advantages. LiMn2O4 materials have been synthesized by solid state method using γ-MnO2 as manganese source, and Li2CO3 or LiNO3 as Li sources. γ-MnO2 is a commercial battery grade electrolytic manganese dioxide (TOSOH-Hellas GH-S) and LiMn2O4 samples were synthesized at a calcinations temperature up to 800 °C. γ-MnO2 and LiMn2O4 samples were characterized by X-ray diffraction, thermal and electrochemical measurements. X-ray powder diffraction of as prepared LiMn2O4 showed a well-defined highly pure spinel single phase. The electrochemical performance of LiMn2O4 and its starting material γ-MnO2 was evaluated through cyclic voltammetry, galvanostatic (constant current charge-discharge cycling) The electrochemical properties in terms of cycle performance were also discussed.
Ionics – Springer Journals
Published: Mar 25, 2006
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