Local structure and electrochemistry of lithium cobalt oxides and their doped compounds
Abstract We present the structural and electrochemical properties of LiCoO 2 and doped LiCo 1− y M y O 2 (M=Ni, Al, B, Mg) oxides prepared by various methods, i.e. solid-state reaction, wet chemistry and film deposition techniques. The local structure studied by resonance spectroscopy (Raman and FTIR) is reported. It is shown that synthesis procedures of LiCoO 2 cathode materials greatly affect the electrochemistry and cycle life characteristics of their layered structure.