Synthesis of flower-like LiMnPO4/C with precipitated NH4MnPO4•H2O as precursor

Ammonium magnesium phosphate monohydrate (NH4MnPO4 center dot H2O) precursor was prepared by a novel precipitating process with manganese citrate complexes as intermediate. The morphology of the precursor observed by Scanning Electron Microscope (SEM) was flower-like which was self-assembled by plate-like particles. Further analysis by X-ray diffraction (XRD) revealed that the lattice of the plate crystal was orientated along (0 1 0) plane. By solid-state reaction of the precursor, with lithium acetate and glucose as carbon source, pure olivine structured LiMnPO4/C composite was obtained and meanwhile, the original flower-like morphology could be retained. (C) 2012 Elsevier B. V. All rights reserved.