Effect of the stirring rate on physical and electrochemical properties of LiMnPO₄ nanoplates prepared in a polyol process

In a polyol approach to make olivine-typed LiMnPO₄ nanoplates, the effect of the stirring rate on physical and electrochemical properties of the obtained sample has been symmetrically investigated for the first time. The as-prepared powders exhibit well crystalline olivine structure as presented by X-ray diffraction analysis. The secondary particles with a size of 2-3 μm are composed of aggregated nanoplates as verified by particle size analysis and field emission scanning electron microscopy measurement. Transmission electron microscopy presents that the nanoplate is about 18 nm thick along a-axis. The discharge capacity of the sample prepared under a stirring rate of 700 rpm reaches 150 mAh g^-1 when cycled at 0.05C after a few cycles.