Journal
ELECTROCHIMICA ACTA
Volume 50, Issue 2-3, Pages 443-447Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2004.04.047
Keywords
lithium iron phosphates; supervalent ion doping; electronic conductivity; cathode; lithium-ion batteries
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Stoichiometric and non-stoichiometric Mg-doped lithium iron phosphates were synthesised via spray-pyrolysis, followed by sintering at high temperature for crystallization. The spray pyrolysis process allows the homogeneous mixing of the ingredient reactants at atomic level. The electronic conductivities of the Mg-doped lithium iron phosphates have been drastically improved by 4 orders of magnitude, comparing to the undoped LiFePO4. The electrochemical properties of as-prepared lithium iron phosphates were systematically measured by cyclic voltammetry and constant current charge/discharge cycling tests. (C) 2004 Elsevier Ltd. All rights reserved.
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