Fe Content Effects on Electrochemical Properties of 0.3Li2MnO3•0.7LiMnxNixFe(1-2x)/2 O2 Cathode Materials

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The cathode materials 0.3Li2MnO3•0.7LiMnxNixFe(1-2x)/2O2(0.35≤x≤0.5) were synthesized via low-heating solid-state reaction method. The prepared samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), thermogravimetric analysis (TG) and differential thermal analysis (DTA), and their electrochemical performances were also investigated here. The FESEM images of samples revealed that the particle of Fe-substituted samples became smaller and size distribution got narrower compared with the materials without Fe-doping. The results showed that electrochemical properties of the material depended on the content of Fe. 0.3Li2MnO3• 0.7LiMn0.4 Ni0.4Fe2O2 maintained 99.5% of the reversible capacity after 60 cycles

Info:

Periodical:

Advanced Materials Research (Volumes 347-353)

Edited by:

Weiguo Pan, Jianxing Ren and Yongguang Li

Pages:

3518-3521

DOI:

10.4028/www.scientific.net/AMR.347-353.3518

Citation:

D. Li et al., "Fe Content Effects on Electrochemical Properties of 0.3Li2MnO3•0.7LiMnxNixFe(1-2x)/2 O2 Cathode Materials", Advanced Materials Research, Vols. 347-353, pp. 3518-3521, 2012

Online since:

October 2011

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$35.00

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