Hydrothermal synthesis of lithium manganese oxide with α-NaFeO2 structure has been studied. A LixMnO2 · nH2O, (Li-birnessite), with rhombohedral symmetry was used as a starting material. When the molar ratio of Mn/Al was smaller than 0.9/0.1, spinel type lithium manganese oxides were obtained. On the other hand, when the molar ratio of Mn/Al was larger than 0.85/0.15, metastable lithium manganese oxides with α-NaFeO2 structure formed at 80°C, and the capacity fade of the Li-ion cell with cathodes made of these oxides was very small in comparison with that of cathodes made of layered Li-manganese oxides, as previously reported.
CITATION STYLE
Nakano, H., Okuda, C., & Ukyo, Y. (2001). Hydrothermal synthesis of lithium manganese oxide with α-NaFeO2 structure. Journal of the Ceramic Society of Japan, 109(1275), 974–977. https://doi.org/10.2109/jcersj.109.1275_974
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