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The Li-S battery: an investigation of redox shuttle and self-discharge behaviour with LiNO3-containing electrolytes
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. Scania CV AB, SE-15187 Sodertalje, Sweden..
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
Scania CV AB, SE-15187 Sodertalje, Sweden..
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2016 (English)In: RSC Advances, ISSN 2046-2069, E-ISSN 2046-2069, Vol. 6, no 5, 3632-3641 p.Article in journal (Refereed) Published
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Abstract [en]

The polysulfide redox shuttle and self-discharge behaviour of lithium-sulfur (Li-S) cells containing the electrolyte additive LiNO3 has been thoroughly explored by a range of electrochemical and surface analysis techniques on simple Li-S (i.e., not specifically optimised to resist self-discharge) and symmetrical Li-Li cells. Despite the relatively effective passivation of the negative electrode by LiNO3, fully charged cells self-discharged a quarter of their capacity within 3 days, although in the short-term cells can be recharged without any noticeable capacity loss. The processes governing the rate and reversibility of self-discharge in these cells have been investigated and explained in terms of the reactions of polysulfides occurring at both electrodes during idle conditions.

Place, publisher, year, edition, pages
2016. Vol. 6, no 5, 3632-3641 p.
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Chemical Sciences
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URN: urn:nbn:se:uu:diva-280929DOI: 10.1039/c5ra23635eISI: 000369508800030OAI: oai:DiVA.org:uu-280929DiVA: diva2:912259
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VINNOVA
Available from: 2016-03-16 Created: 2016-03-16 Last updated: 2017-11-30Bibliographically approved

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Lacey, Matthew J.Maibach, JuliaEdström, KristinaBrandell, Daniel

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