LiFePO[sub 4] Synthesis Routes for Enhanced Electrochemical Performance

Abstract
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. © 2002 The Electrochemical Society. All rights reserved.