Well-crystallized LiNiO2 thin films were prepared directly on nickel substrates in LiOH solution by constant current electrochemical deposition technique at 95 ℃. The as-prepared LiNiO2 thin films were characterized by using XRD, SEM and XPS, and the results reveal that the as-prepared LiNiO2 thin films are dense and uniform in surface and show hexagonal structure. The influence of processing parameters such as reaction temperature, duration, electrical current density as well as the concentration of LiOH solution on the structure and morphologies of as-prepared LiNiO2 thin films were studied,and the preferable electrochemical processing conditions for preparing LiNiO2 thin films were suggested.
采用恒电流电化学技术,在95℃左右的条件下,于Li OH溶液中,直接在镍片上制备了结晶良好的Li Ni O2薄膜.通过XRD,SEM和XPS技术对制备的Li Ni O2薄膜进行了表征;测试结果表明制备的Li Ni O2薄膜表面致密、均匀,为六方层状结构.通过研究,作者得到了适宜的电化学制备Li Ni O2薄膜的工艺条件.
