skip to main content

Title: A synthesis of LiFePO{sub 4} starting from FePO{sub 4} under reducing atmosphere

A fast and easy way to produce LiFePO{sub 4} starting from FePO{sub 4}, used as iron and phosphorus source, is proposed. 5% hydrogen is employed as a reducing agent and various compounds containing lithium as lithiation agents. The selected lithiation agents included: LiCl, CH{sub 3}COOLi, LiOH, Li{sub 2}S, LiH, and Li{sub 2}CO{sub 3}. Solid state synthesis is used for the LiFePO{sub 4} preparation and the so obtained materials are structurally characterized by XRD. The materials are used to fabricate composite electrode and their specific capacity is evaluated by low rate galvanostatic charge/discharge cycles (C/10 rate). Among the various lithium salts, the acetate give rise to the LiFePO{sub 4} with the best electrochemical performance. The morphology of this material is further investigated by SEM microscopy and the specific capacity is evaluated as a function of the discharge rate and the cycle number.
Authors:
 [1] ; ; ; ;  [2]
  1. ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Casaccia Research Centre, Via Anguillarese 301, 00123 Santa Maria di Galeria, Rome, Italy and DInESto, Drive the Innovation in Energy Storage, Via Provin (Italy)
  2. ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Casaccia Research Centre, Via Anguillarese 301, 00123 Santa Maria di Galeria, Rome (Italy)
Publication Date:
OSTI Identifier:
22311371
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1603; Journal Issue: 1; Conference: Nanoforum 2013, Rome (Italy), 18-20 Sep 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ACETATES; ELECTROCHEMISTRY; IRON PHOSPHATES; LITHIUM CARBONATES; LITHIUM CHLORIDES; LITHIUM HYDRIDES; LITHIUM HYDROXIDES; LITHIUM SULFIDES; MORPHOLOGY; PHOSPHORUS; REDUCING AGENTS; SCANNING ELECTRON MICROSCOPY; SYNTHESIS; X-RAY DIFFRACTION