Exploring 3D microstructural evolution in Li-Sulfur battery electrodes using in-situ X-ray tomography

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dc.contributor.authorYermukhambetova, Assiya
dc.contributor.authorTan, Chun
dc.contributor.authorDaemi, Sohrab R.
dc.contributor.authorBakenov, Zhumabay
dc.contributor.authorDarr, Jawwad A.
dc.contributor.authorBrett, Daniel J. L.
dc.contributor.authorShearing, Paul R.
dc.date.accessioned2016-11-07T06:26:25Z
dc.date.available2016-11-07T06:26:25Z
dc.date.issued2016-09-17
dc.description.abstractLithium sulfur (Li-S) batteries offer higher theoretical specific capacity, lower cost and enhanced safety compared to current Li-ion battery technology. However, the multiple reactions and phase changes in the sulfur conversion cathode result in highly complex phenomena that significantly impact cycling life. For the first time to the authors’ knowledge, a multi-scale 3D in-situ tomography approach is used to characterize morphological parameters and track microstructural evolution of the sulfur cathode across multiple charge cycles. Here we show the uneven distribution of the sulfur phase fraction within the electrode thickness as a function of charge cycles, suggesting significant mass transport limitations within thick-film sulfur cathodes. Furthermore, we report a shift towards larger particle sizes and a decrease in volume specific surface area with cycling, suggesting sulfur agglomeration. Finally, we demonstrate the nano-scopic length-scale required for the features of the carbon binder domain to become discernible, confirming the need for future work on in-situ nano-tomography. We anticipate that X-ray tomography will be a powerful tool for optimization of electrode structures for Li-S batteries.ru_RU
dc.identifier.citationAssiya Yermukhambetova, Chun Tan, Sohrab R. Daemi, Zhumabay Bakenov, Jawwad A. Darr, Daniel J. L. Brett1 & Paul R. Shearing (2016) Exploring 3D microstructural evolution in Li-Sulfur battery electrodes using in-situ X-ray tomography. www.nature.com/scientificreportsru_RU
dc.identifier.urihttp://nur.nu.edu.kz/handle/123456789/1848
dc.language.isoenru_RU
dc.publisherwww.nature.com/scientificreportsru_RU
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/us/*
dc.subject3D microstructural evolutionru_RU
dc.subjectLi-Sulfur batteryru_RU
dc.titleExploring 3D microstructural evolution in Li-Sulfur battery electrodes using in-situ X-ray tomographyru_RU
dc.typeArticleru_RU

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