Synthesis of Orthorhombic LiMnO2 Material and Its Optimization
Chemistry Letters2001Vol. 30(9), pp. 882–883
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Abstract
Abstract Orthorhombic LiMnO2 was synthesized using LiOH and γ-MnOOH at 1000 °C in the argon flow by quenching method. X-ray diffraction revealed that the LiMnO2 showed a well-defined orthorhombic phase of a space group with Pmnm. The lattice constants were a = 2.806 Å, b = 5.750 Å, and c = 4.593 Å. The LiMnO2 after grinding delivered 212 mAh/g in the 9th cycle and still delivered 200 mAh/g after 50 cycles at room temperature. The well-defined orthorhombic LiMnO2 by the quenching method exhibited an excellent cycle performance.
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