Charge-Discharge Cycling Induced Structural and Chemical Evolution of Li2MnO3 Cathode for Li-ion Batteries

Cycling behaviour of barium doped LiMn2O4 cathode materials for Li ion secondary batteries

In order to improve the cycling performance of LiMn2O4, the spinel phase LiMn2–xBaxO4 (x = 0.01, 0.02 and 0.05) compounds were fabricated by the glycine-nitrate method. The structures of the products were investigated by X-ray diffraction. Electrochemical studies were carried out using the Li|LiMn2O4 and Li|LiMn2–xBaxO4 cells. The capacity loss of Li|LiMn2O4 cell is about 15% after 30 cycles, w...

Comparative Issues of Cathode Materials for Li-Ion Batteries

After an introduction to lithium insertion compounds and the principles of Li-ion cells, we present a comparative study of the physical and electrochemical properties of positive electrodes used in lithium-ion batteries (LIBs). Electrode materials include three different classes of lattices according to the dimensionality of the Li ion motion in them: olivine, layered transition-metal oxides an...

C/Li2MnSiO4 Nanocomposite Cathode Material for Li-Ion Batteries

Vanadium Modified LiFePO4 Cathode for Li-Ion Batteries

Vanadium Modified LiFePO4 Cathode for Li-Ion Batteries Jian Hong,* C. S. Wang,** X. Chen,** S. Upreti, and M. Stanley Whittingham*** Department of Chemistry and Materials Science, State University of New York at Binghamton, Binghamton, New York 13902-6000, USA Department of Chemical Engineering, University of Maryland, College Park, Maryland 20742, USA Department of Chemistry, University of Hou...

Controllable synthesis, morphology evolution and electrochemical properties of LiFePO4 cathode materials for Li-ion batteries.

Monodispersed LiFePO4 nanocrystals with diverse morphologies were successfully synthesized via a mild and controllable solvothermal approach with a mixture of ethylene glycol and oleic acid as the solvent. Morphology evolution of LiFePO4 nanoparticles from nanoplates to nanorods can be simply realized by varying the volume ratio of oleic acid to ethylene glycol. Moreover, the mechanism of compe...