Transformation from Monoclinic LiMnO2 to Spinel LixMn2O4 during Electrochemical Cycling

Abstract:

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The monoclinic LiMn0.9Cr0.1O2 irreversibly transforms to spinel-like structure m-LiMnO2 during the electrochemical cycling. Experimental results indicated that the (440) interplanar distance of LixMn2O4 at the charged state increases as the cycle number increases, while the (440) interplanar distance of LixMn2O4 at the discharged state decreases as the cycle number increases.A model for the transformation of monoclinic LiMn0.9Cr0.1O2 to the spinel LiMn2O4 is suggested. According to the suggested model, there may exist two types of s-LixMn2O4 when m-LiMnO2 transforms into s-LixMn2O4. The two types of spinel LixMn2O4 develop the nanodomain.

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong

Pages:

270-273

DOI:

10.4028/www.scientific.net/KEM.368-372.270

Citation:

Y. J. Gu et al., "Transformation from Monoclinic LiMnO2 to Spinel LixMn2O4 during Electrochemical Cycling ", Key Engineering Materials, Vols. 368-372, pp. 270-273, 2008

Online since:

February 2008

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Price:

$35.00

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