Mechanochemical synthesis and electrochemical properties of nanostructured electrode materials for Li ion batteries

We focus on the synthesis by ball milling and on the electrochemical characterization of nanocrystalline bimetallic and composite materials to be employed as anodes in Li ion batteries. Ni 3 Sn 4 and Ni 3 Sn 2 based compounds were obtained by ball milling of three different Ni–Sn mixtures. The prope...

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Bibliographic Details
Published inJournal of solid state electrochemistry Vol. 13; no. 2; pp. 239 - 243
Main Authors Mulas, G., Enzo, S., Bonatto Minella, C., Arca, E., Gerbaldi, C., Penazzi, N., Bodoardo, S., Hassoun, J., Panero, S.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer-Verlag 01.02.2009
Subjects
Analytical Chemistry
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Electrochemistry
Energy Storage
Original Paper
Physical Chemistry
Ball milling
Li ion batteries
Kinetics
Nanostructured materials
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Summary:We focus on the synthesis by ball milling and on the electrochemical characterization of nanocrystalline bimetallic and composite materials to be employed as anodes in Li ion batteries. Ni 3 Sn 4 and Ni 3 Sn 2 based compounds were obtained by ball milling of three different Ni–Sn mixtures. The properties of the resulting anodes for Li ion batteries were evaluated as a function of composition. Moreover, a biphasic system is presented, with CoSn 2 and CoSn type structures, arising from the synthesis of the Sn 31 Co 28 C 41 composition. When cycled in a Li cell, this material showed a high reversible specific capacity, about 450 mA h g −1 , and a very good electrochemical and structural stability, making it of interest for application purposes.
ISSN:1432-8488
1433-0768
DOI:10.1007/s10008-008-0529-z