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LiMn 2 O 4 spinel cathode materials have been successfully synthesized by solid‐state reaction. Surface of these particles was modified by nanostructured LiFePO 4 via sol gel dip coating method. Synthesized products were characterized by thermally analyzed thermogravimetric and differential thermal analysis (TG/DTA), X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive X‐ray spectroscopy (EDX). The results of electrochemical tests showed that the charge/discharge capacities improved and charge retention of battery enhanced. This improved electrochemical performance is caused by LiFePO 4 phosphate layer on surfaces of LiMn 2 O 4 cathode particles.
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Sadeghi et al. (2012) studied this question.
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