Preparation of Mn 2SnO 4 nanoparticles as the anode material for lithium secondary battery

Abstract

The ultrafine Mn 2SnO 4 nanoparticles with diameters of 5–10 nm have been prepared by thermal decomposition of precursor MnSn(OH) 6. The MnSn(OH) 6 nanoparticles precursor was synthesized by a hydrothermal microemulsion method. X-ray diffraction, transmission electron microscopy, high-resolution transmission electron microscopy and electron diffraction have been employed to characterize the crystal structures and morphologies of the as-prepared samples. High-resolution transmission electron microscopy observations revealed that the as-synthesized nanoparticles were single crystals. The thermal characterization was studied by differential thermal analysis and thermogravimetry analysis measurements. Electrochemical test showed that the Mn 2SnO 4 nanoparticles exhibited a high initial charge–discharge capacity of 1320 mAh/g.