Synthesis of the Layered-Spinel Intergrowth Structure Cathode Materials by Co-Precipitation Method
Cathode materials Li-[MnxNi1/2-x/2Co1/2-x/2]-O (x=0.333, 0.4, 0.6, 0.8, 0.9) were fabricated by lithium salts (LiNO3) and manganese-nickel-cobalt hydroxide precursors using the required amounts of Mn, Ni, Co for a given value of x. When Mn content is between 0.5 and 0.8, layered and spinel structure co-existed. Meanwhile the rate Li/M is also a key factor for synthesis of layered-spinel intergrowth structure cathode materials without other impurities. Li-[Ni0.2Co0.2Mn0.6]-O and Li-[Ni0.1Co0.1Mn0.8]-O were synthesized by a Two-step Co-precipitation method.
Wei Pan and Jianghong Gong
Y. C. Feng et al., "Synthesis of the Layered-Spinel Intergrowth Structure Cathode Materials by Co-Precipitation Method", Advanced Materials Research, Vols. 105-106, pp. 668-672, 2010