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Li3+δVC6O13: a short-range-ordered lithium insertion mechanism
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Materials Chemistry. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Materials Chemistry, Structural Chemistry. strukturkemi.
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Materials Chemistry. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Materials Chemistry, Structural Chemistry. strukturkemi.
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Materials Chemistry. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Materials Chemistry, Structural Chemistry. strukturkemi.
2004 (English)In: Acta Crystallographica, ISSN 0108-7681, Vol. B60, 382-387 p.Article in journal (Refereed) Published
Abstract [en]

The structures of Li3 V6O13 and Li3+V6O13, 0.3, have been determined by single-crystal X-ray diffraction. Both compounds have the space group C2/m, with very similar cell parameters. In Li3V6O13, the Li atoms are found in the Wyckoff positions 4(i) and 2(b) with multiplicities of four and two, respectively. Since Li3V6O13 exhibits no superstructure reflections, it is concluded that Li3V6O13 contains one disordered lithium ion in an otherwise ordered centrosymmetric structure. On inserting more lithium into the structure, the Li3+V6O13 phase is formed with the homogeneity range 0 < < 1. It is concluded that the site for the extra inserted lithium ion is closely coupled to the position of the disordered lithium ion in Li3V6O13. A mechanism for this behaviour and for the further formation of the Li6V6O13 end-phase in the LixV6O13 system is proposed.

Place, publisher, year, edition, pages
2004. Vol. B60, 382-387 p.
Keyword [en]
lithium-ion battery, vanadium oxide, insertion mechanism, disorder
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-67732DOI: doi:10.1107/S0108768104013096OAI: oai:DiVA.org:uu-67732DiVA: diva2:95643
Available from: 2006-09-28 Created: 2006-09-28 Last updated: 2011-01-12

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Gustafsson, TorbjörnThomas, John

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