A new lithium iron phosphate LiFe2P3O10 synthesized at 600 degrees C from precursor obtained by wet chemistry

Alain Mauger (1) , Mohamed Selmane (2) , Christian M. Julien (3) , Atmane Ait-Salah , Chintalapalle V. Ramana , François Gendron (3) , Jean-Francois Morhange (3)

1 LMDH - Laboratoire des Milieux Désordonnés et Hétérogènes
2 LCMCP - Laboratoire de Chimie de la Matière Condensée de Paris
3 INSP - Institut des Nanosciences de Paris

We present the synthesis and characterization of a novel lithium iron polyphosphate LiFe2P3O10 prepared by wet-chemical technique from nitrate precursors. The crystal system is shown to be monoclinic (P2(1)/m space group) and the refined cell parameters are a=4.596 angstrom, b=8.566 angstrom, c=9.051 angstrom and beta=9-97.46 degrees. LiFe2P3O10 has a weak anti ferromagnetic ordering below the Neel temperature T-N=19 K. Electrochemical measurements carried out at 25 degrees C in lithium cell with LiPF6-EC-DEC electrolyte show a capacity 70 mAh/g in the voltage range 2.7-3.9 V.

Domaines: Matière Condensée [cond-mat]

Alain Mauger, Mohamed Selmane, Christian M. Julien, Atmane Ait-Salah, Chintalapalle V. Ramana, et al.. A new lithium iron phosphate LiFe2P3O10 synthesized at 600 degrees C from precursor obtained by wet chemistry. Symposium on Solid-State Ionics held at the 2006 MRS Fall Meeting, Nov 2006, Boston, MA, Unknown Region. pp.283-287. ⟨hal-01293287⟩