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Why PEO as a binder or polymer coating increases capacity in the Li-S system
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
2013 (English)In: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 49, no 76, 8531-8533 p.Article in journal (Refereed) Published
Abstract [en]

PEO, used either as a binder or a polymer coating, and PEGDME, used as an electrolyte additive, are shown to increase the reversible capacity of Li-S cells. The effect, in all three cases, is the same: an improved solvent system for the electrochemistry of sulfur species and suppression of cathode passivation on discharge. This constitutes a novel interpretation of the mechanistic behaviour of polyethers in the Li-S system, and sheds new light upon several previous studies.

Place, publisher, year, edition, pages
2013. Vol. 49, no 76, 8531-8533 p.
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Natural Sciences
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URN: urn:nbn:se:uu:diva-208178DOI: 10.1039/c3cc44772cISI: 000323726600033OAI: oai:DiVA.org:uu-208178DiVA: diva2:651171
Available from: 2013-09-24 Created: 2013-09-24 Last updated: 2017-12-06Bibliographically approved

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Lacey, Matthew J.Jeschull, FabianEdström, KristinaBrandell, Daniel

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