Nanosized LiMn2O4 from mechanically activated solid-state synthesis

摘要

The synthesis of pure and Cr-doped nanosized LiMn2O4 particles has been carried out by solid-state process on high-energy ground mixtures. In situ X-ray analysis demonstrates the spinel forms as single phase at 623 K passing through the Mn3O4 precursor at temperatures as low as 573 K. In the doped high-energy ground mixture Li-rich spinel phase forms at 623 K and Cr ions insert in the spinel octahedral site only at 723 K.