S. Franger

LiFePO4 Synthesis Routes for Enhanced Electrochemical Performance

LiFePO4 powders were synthesized under two different conditions ~hydrothermal or mechanochemical activation! using iron~II! phosphate and lithium phosphate as starting materials. The samples were characterized by X-ray diffraction, chemical titration, and their electrochemical performance was investigated in terms of cycling behavior and impedance response. We also report the benefit of introducing an electronic conductor precursor ~typically a sucrose! during or after the synthesis to overcome the poor charge transfer associated to the lithium iron phosphate.