%0 Journal Article
%T Synthesis and Electrochemical Characterization of LiMn2O4 and LiNd0.3Mn1.7O4 as Cathode for Lithium Ion Battery
%A K.Suryakala
%A KR.Marikkannu
%A G.Paruthimal Kalaignan
%A T.Vasudevan
%J International Journal of Electrochemical Science
%D 2008
%I Electrochemical Science Group
%X LiMn2O4 is inexpensive material but it shows rather poor cyclic performance. The electrochemical performance of spinel type LiMn2O4 has been effectively improved with doping of Nd the ˇ°bottom¨Cupˇ± approach of LiMn2O4 and LiNd0.3Mn1.7O4 synthesized by citric acid modified microwave assisted sol-gel method. LiMn2O4 has been synthesized from nitrates and acetates. Citric acid was added as a complexing agent and acryl amide acts as a gelling agent. This technique offers better homogeneity, preferred surface morphology, reduced heat-treatment conditions, sub-micron sized particles and better crystallinity. The structure and the electrochemical performances of the samples are characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, cyclic voltammetry and charge-discharge testing. XRD data shows both samples exhibit the same pure spinel phase. Nano crystalline LiNd0.3Mn1.7O4 sample has a smaller morphology including small particle size and the homogeneous particle distribution.
%K Li-ion battery
%K doped lithium manganese spinels
%K Structure
%K Cyclic voltammetry
%K Rare earth element
%U www.electrochemsci.org/papers/vol3/3020136.pdf