A self-discharge model of Lithium-Sulfur batteries based on direct shuttle current measurement

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dc.contributor.author Knap, Vaclav
dc.contributor.author Stroe, Daniel-Ioan
dc.contributor.author Swierczynski, Maciej
dc.contributor.author Purkayastha, Rajlakshmi
dc.contributor.author Propp, Karsten
dc.contributor.author Teodorescu, Remus
dc.contributor.author Schaltz, Erik
dc.date.accessioned 2016-12-09T10:19:12Z
dc.date.available 2016-12-09T10:19:12Z
dc.date.issued 2016-10-29
dc.identifier.citation Knap V, Stroe D-I, Swierczynski M, Purkayastha R, Propp K, Teodorescu R, Schaltz E, A self-discharge model of Lithium-Sulfur batteries based on direct shuttle current measurement, Journal of Power Sources, Volume 336, 30 December 2016, Pages 325–331 en_UK
dc.identifier.issn 0378-7753
dc.identifier.uri http://dx.doi.org/10.1016/j.jpowsour.2016.10.087
dc.identifier.uri https://dspace.lib.cranfield.ac.uk/handle/1826/11125
dc.description.abstract In the group of post Lithium-ion batteries, Lithium-Sulfur (Li-S) batteries attract a high interest due to their high theoretical limits of the specific capacity of 1672 Ah kg−1 and specific energy of around 2600 Wh kg−1. However, they suffer from polysulfide shuttle, a specific phenomenon of this chemistry, which causes fast capacity fade, low coulombic efficiency, and high self-discharge. The high self-discharge of Li-S batteries is observed in the range of minutes to hours, especially at a high state of charge levels, and makes their use in practical applications and testing a challenging process. A simple but comprehensive mathematical model of the Li-S battery cell self-discharge based on the shuttle current was developed and is presented. The shuttle current values for the model parameterization were obtained from the direct shuttle current measurements. Furthermore, the battery cell depth-of-discharge values were recomputed in order to account for the influence of the self-discharge and provide a higher accuracy of the model. Finally, the derived model was successfully validated against laboratory experiments at various conditions. en_UK
dc.language.iso en en_UK
dc.publisher Elsevier en_UK
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject Lithium-Sulfur battery en_UK
dc.subject Self-discharge en_UK
dc.subject Polysulfide shuttle en_UK
dc.subject Modelling en_UK
dc.subject Validation en_UK
dc.title A self-discharge model of Lithium-Sulfur batteries based on direct shuttle current measurement en_UK
dc.type Article en_UK

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