Electrical and Electrochemical Properties of Li[Ni0.5 Co0.25 Mn0.25]O2 Cathode Material
In the present study a mixed hydroxide method has been employed to prepare Li[Ni0.5Co0.25Mn0.25]O2 from the precursors and electrical and electrochemical properties have been studied. X-ray diffraction studies of the synthesized powder exhibited predominant (003) orientation corresponding to hexagonal layered structure. The average grain size estimated from SEM data is about 1.0 µm. The impedance measurements have been carried out in the frequency range of 1 Hz – 1 MHz and within the temperature range of 303–373 K.