Abstract
Ultrafine high-temperature (HT) LiCoO2 powders were synthesized by the sol-gel method using polyacrylic acid (PAA) as a chelating agent. The decomposition process of the gel precursor was examined to determine the crystallization temperature and the dependence of the physicochemical properties of HT-LiCoO2 powders on the PAA quantity was extensively investigated. Polycrystalline HT-LiCoO2 powders, composed of very uniformly sized ultrafine particulates with an average particle size of 30–50 nm and a specific surface area of 2.3–17 m2g−1, could be obtained at the lower calcination temperature of 550 °C and the shorter calcination time of 1 h compared to the solid-state reaction.
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Sun, Y.K., Oh, I.H. & Hong, S.A. Synthesis of ultrafine LiCoO2 powders by the sol-gel method. JOURNAL OF MATERIALS SCIENCE 31, 3617–3621 (1996). https://doi.org/10.1007/BF00352769
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DOI: https://doi.org/10.1007/BF00352769