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Mn-doped samples with atomic ratios equal to 0.5%, 1% and 3% were prepared by the conventional mixed-oxide method from commercial cerium oxide (CeO 2 ) and manganese oxide (MnO 2 ) powders. The effect of Mn doping on the densification behavior of CeO 2 was investigated by means of dilatometer and scanning electron microscopy (SEM). It was found that Mn doping reduced sintering...
Two lithium manganese oxide materials based on the spinel structure have been synthesised by a new solution method which has the advantage that it can be carried out in air unlike previous sol-gel methods. One material is suitable as a 3 V and the other as a 4 V cathode in rechargeable lithium cells. In the case of the 3 V matherial the addition of a small amount of carbon to the solution during preparation...
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