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Novel Mn 3 O 4 microsphere with diameter about 2μm and smooth surface has been prepared by solvothermal treating a mixture of manganese (II) acetate tetrahydrate and oleic acid in absolute ethanol at a low temperature (120°C), and its structure and morphology are systematically investigated by XRD, XPS, and SEM. The morphology of Mn 3 O 4 microsphere is mainly controlled...
Li 1+x [Mn 0.45 Co 0.40 Ni 0.15 ]O 2 spherical cathode materials with different sizes (about 2 and 5 μm) were fabricated by calcining uniform spherical metal carbonate, [Mn 0.45 Co 0.40 Ni 0.15 ]CO 3 with lithium hydroxide at high temperature. The precursor of spherical metal carbonate, [Mn 0.45 Co 0.40 Ni ...
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