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Mn influence on the electrochemical behaviour of Li(3)V(2)(PO(4))(3) cathode material

Research Area: Uncategorized Year: 2011
Type of Publication: Article
Authors:
Journal: ELECTROCHIMICA ACTA Volume: 56
Number: 6 Pages: 2648-2655
Month: February
ISSN: 0013-4686
Abstract:
The role played by the substitution of Mn on the electrochemical behaviour of Li(3)V(2)(PO(4))(3) has been investigated. Independently of the synthesis route, the Mn doping improves the electrochemical features with respect to the undoped samples. Different reasons can be taken into consideration to explain the electrochemical enhancement. In the sol-gel synthesis the capacity slightly enhances due to the Mn substitution on both the V sites, within the solubility limit x=0.124 in Li(3)V(2-x)Mn⊗(PO(4))(3). In the solid state synthesis the significant capacity enhancement is preferentially due to the microstructural features of the crystallites and to the LiMnPO(4) phase formation. (C) 2010 Elsevier Ltd. All rights reserved.
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