With x=0.1,0.2,0.3,0.5 and 1,Li(Ni1-xCox)O2 was prepared by cop recipitation of Ni-and Co-salt in mixed solution with NaOH.

• 介绍了采用共沉淀法合成层状Li(Ni1-xCox)O2的实验方法；采用XRD和电化学方法对合成的层状Li(Ni1-xCox)O2进行了研究。 研究结果表明:Co含量为0.；3时首次可逆效率发生突变;