LiCoPO4 thin films were deposited on Li1+x+yAlxTi2−xSiyP3−yO12 (LATSP) solid

electrolyte by radio frequency magnetron sputtering and were characterized by Xray

diffraction and scanning electron microscope. The films showed a (111)

preferred orientation upon annealing and were chemically stable with LATSP up to

600C in air. An all-solid-state Li/PEO18-Li(CF3SO2)2N/LATSP/LiCoPO4/Au cell

was fabricated to investigate the electrochemical performance and Li-ion chemical

diffusion coefficients, DLi, of the LiCoPO4 thin films. The potential dependence of

DLi values of the LiCoPO4 thin film was investigated by potentiostatic intermittent

titration technique and was compared with those of the LiFePO4 thin film. These

results showed that the intercalation mechanism of Li-ion in LiCoPO4 was different

to that in LiFePO4.

Li-Ion Diffusion Kinetics in LiCoPO4 Thin Films Deposited on NASICON-Type

Glass Ceramic Electrolytes by Magnetron Sputtering. J.Xie, N.Imanishi, T.Zhang,

A.Hirano, Y.Takeda, O.Yamamoto: Journal of Power Sources, 2009, 192[2], 689-

92