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Synthesis and electrochemical properties of nanostructured Li(2)FeSiO(4)/C cathode material for Li-ion batteries
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Materials Chemistry, Structural Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Materials Chemistry, Structural Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Materials Chemistry, Structural Chemistry.
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
Abstract [en]

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.
Keyword [en]
Lithium-ion battery, Iron silicate, Synthesis, Characterization, Electrochemistry
National Category
Chemical Sciences Inorganic Chemistry
Research subject
Chemistry with specialization in Inorganic Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-157214DOI: 10.1016/j.ssi.2010.03.030ISI: 000292848800076OAI: oai:DiVA.org:uu-157214DiVA: diva2:435878
Note
Conference: 17th International Conference on Solid State Lonics Location: Toronto, CANADA Date: JUN 28-JUL 03, 2009 Available from: 2011-08-20 Created: 2011-08-20 Last updated: 2017-12-08Bibliographically approved

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Gustafsson, Torbjörn

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