Synthesis and electrochemical properties of nanostructured Li(2)FeSiO(4)/C cathode material for Li-ion batteries
2011 (English)In: Solid State Ionics, ISSN 0167-2738, E-ISSN 1872-7689, Vol. 192, no 1, 356-359 p.Article in journal (Refereed) Published
Nanostructured Li(2)FeSiO(4)/C was synthesized by high-energy ball-milling and the amorphous citrate-assisted techniques. Similar redox behaviour is observed for samples prepared by the amorphous citrate-assisted route followed by a 4 h heat treatment: 0.3 V polarization and more sloping behaviour was observed when cycling between 2.0 V and 3.7 V at 60 degrees C; lower capacity fade is also observed compared to Li(2)FeSiO(4)/C prepared by the solid-state reaction technique. A discharge capacity of 102 mA h g(-1) is obtained for samples prepared by the high-energy ball-milling method, while capacities decrease from 95 to 77 mA h g(-1) using the amorphous citrate method for heat-treatment times increasing successively from 4 h to 18 h.
Place, publisher, year, edition, pages
2011. Vol. 192, no 1, 356-359 p.
Lithium-ion battery, Iron silicate, Synthesis, Characterization, Electrochemistry
Chemical Sciences Inorganic Chemistry
Research subject Chemistry with specialization in Inorganic Chemistry
IdentifiersURN: urn:nbn:se:uu:diva-157214DOI: 10.1016/j.ssi.2010.03.030ISI: 000292848800076OAI: oai:DiVA.org:uu-157214DiVA: diva2:435878
Conference: 17th International Conference on Solid State Lonics Location: Toronto, CANADA Date: JUN 28-JUL 03, 2009 2011-08-202011-08-202011-11-29Bibliographically approved