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In this paper, the precursor solid state coordination studied with oxalic acid and Li, Co, Li, Ni, Li, Mn acetate; tartrate and Li, Co, Li, Ni, Li, Mn acetate; Succinic acid and Li, Co, Li, Ni, Li, Mn acetate; ethylenediaminetetraacetic acid and Li, Co, Li, Ni, Li, Mn acetate; 8 - hydroxyquinoline quinoline and Li, Co, Li , Ni, Li, Mn acetate as reactants, be carried out at room temperature or by solid state reaction mixture precursor complexes (precursor reaction), and then thermal decomposition of the corresponding composite oxide LiCoO2, Li1-xNi1 xO2, LiMn2O4. With the reported in the literature compared to other methods, This method has synthesis process is simple, high yield, synthetic temperature is low, time is short, product of small particle size, controllable Xing strong, the reaction do not need to solvents, non-polluting and other advantages. X-ray diffraction, ultraviolet diffuse reflectance spectroscopy, infrared spectroscopy characterization of the precursor of the reaction, the results indicate that five kinds of ligands (oxalic acid, tartaric acid, succinic acid, ethylenediaminetetraacetic acid 8 - quinolinol) were associated with Li, Co, Ni, Mn of acetic acid salt of reaction of generated of the mixed precursor complexes. The ratio of the reaction, combined with elementary analysis of the composition of the precursor mixture. Using the hybrid precursor thermogravimetric / differential thermal analysis to determine thermal decomposition of the precursor mixture of the corresponding oxides minimum thermal decomposition temperature. Composite oxide LiCoO2, Li1-xNi1 xO2, LiMn2O4 of XRD, TEM results showed that: 1, obtained with different ligands thermal decomposition of the precursor may be mixed to achieve the expected LiCoO2, LiMn2O4 and non-stoichiometric Li1-xNi1 xO2 ( 0 Thermal decomposition temperature of the lowest, oxalic acid, succinic acid, tartaric acid ligands obtained by thermal decomposition of the precursor mixture to obtain composite oxide nano size are 50nm, 40nm, 30nm, 8 - hydroxyquinoline and ethylenediamine four acetic acid as-allotment institutional obtained nano-composite oxides particle size of yes 20nm. 2, at a certain temperature pyrolysis to different ligands synthesized precursor decomposition nano composite oxide precursor particle size mixed with the generated volume of the ligand compound. Ligand larger volume, which generates a composite oxide particle size is smaller. 3, the same system was mixed with the precursor pyrolysis at different temperatures to obtain the nano-composite oxide particles particle size, crystal type and the related thermal decomposition temperature, the higher the temperature, the larger the particle size, the diffraction peak becomes sharp, almost the entire crystal; temperature is too high, a certain agglomeration of nanoparticles.
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