LiFePO[sub 4] Synthesis Routes for Enhanced Electrochemical Performance

作者：Sylvain Franger, Frédéric Le Cras, Carole Bourbon, Hélène Rouault · 发表于：Electrochemical and Solid-State Letters · 年份：2002 · DOI：10.1149/1.1506962 · 被引用次数：290 · 研究领域：Advancements in Battery Materials、Advanced Battery Materials and Technologies、Advanced Battery Technologies Research

LiFePO 4 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.