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Structural and Electrochemical Characterizations of Solution Derived LiMn[sub 0.5]Ni[sub 0.5]O[sub 2] as Positive Electrode for Li-Ion Rechargeable Batteries

2008; Electrochemical Society; Volume: 11; Issue: 8 Linguagem: Inglês

10.1149/1.2932052

1944-8775

N. K. Karan, José Javier Saavedra-Arias, Dillip K. Pradhan, R. E. Melgarejo, Arun Kumar, Reji Thomas, Ram S. Katiyar,

Advanced Battery Technologies Research

A cost effective solution route has been developed to synthesize cathode material. X-ray diffraction pattern of the material was fitted based on a hexagonal unit cell ( layer structure). First discharge capacities were 142 and 158 mAh/g at room temperature and at , respectively. The capacity fading was after 30 cycles at room temperature. The Raman spectroscopic and X-ray photoemission spectroscopy analysis of the pristine and electrochemically cycled material showed no significant structural change and Mn remained in the oxidation state, respectively. and redox couples were involved during the electrochemical (de)intercalation of upon electrochemical cycling.