Rational Design of Highly Packed, Crack-Free Sulfur Electrodes by Scaffold-Supported Drying for Ultrahigh-Sulfur-Loaded Lithium-Sulfur Batteries

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dc.contributor.authorKwack, Hobeomko
dc.contributor.authorLee, Jinhongko
dc.contributor.authorJo, Wonheeko
dc.contributor.authorKim, Yun-Jungko
dc.contributor.authorNoh, Hyungjunko
dc.contributor.authorChu, Hyunwonko
dc.contributor.authorKim, Hee-Takko
dc.date.accessioned2019-09-17T07:20:27Z-
dc.date.available2019-09-17T07:20:27Z-
dc.date.created2019-09-17-
dc.date.issued2019-08-
dc.identifier.citationACS APPLIED MATERIALS & INTERFACES, v.11, no.33, pp.29849 - 29857-
dc.identifier.issn1944-8244-
dc.identifier.urihttp://hdl.handle.net/10203/267528-
dc.description.abstractDespite the notable progress in the development of rechargeable lithium-sulfur batteries over the last decade, achieving high performance with high-sulfur-loaded sulfur cathodes remains a key challenge on the path to the commercialization of practical lithium-sulfur batteries. This paper presents a novel method by which to fabricate a crack free sulfur electrode with an ultrahigh sulfur loading (16 mg cm(-2)) and a high sulfur content (64%). By introducing a porous scaffold on the top of a cast of sulfur cathode slurry, the formation of cracks during the drying of the cast can be prevented due to the lower volume shrinkage of the skin. The scaffold-supported sulfur cathode delivers a notably high capacities of 10.3 mAh cm(-2) and 473 mAh cm(-3) after a prolonged cycle, demonstrating that the crack-free structure renders more uniform redox reactions at such high sulfur loading. The highly packed, crack-free feature of the sulfur cathode is advantageous, given that it reduces the electrolyte uptake to as low as an E/S ratio of 4 mu L mg(-1), which additionally contributes to the high energy density. Therefore, the scaffold-supported drying fabrication method as presented here provides an effective route by which to design practically viable, energy-dense lithium-sulfur-batteries.-
dc.languageEnglish-
dc.publisherAMER CHEMICAL SOC-
dc.titleRational Design of Highly Packed, Crack-Free Sulfur Electrodes by Scaffold-Supported Drying for Ultrahigh-Sulfur-Loaded Lithium-Sulfur Batteries-
dc.typeArticle-
dc.identifier.wosid000482546000037-
dc.identifier.scopusid2-s2.0-85070823939-
dc.type.rimsART-
dc.citation.volume11-
dc.citation.issue33-
dc.citation.beginningpage29849-
dc.citation.endingpage29857-
dc.citation.publicationnameACS APPLIED MATERIALS & INTERFACES-
dc.identifier.doi10.1021/acsami.9b08006-
dc.contributor.localauthorKim, Hee-Tak-
dc.contributor.nonIdAuthorKwack, Hobeom-
dc.contributor.nonIdAuthorChu, Hyunwon-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorlithium-sulfur batteries-
dc.subject.keywordAuthorhigh-sulfur-loaded cathodes-
dc.subject.keywordAuthorelectrode fabrication-
dc.subject.keywordAuthorcrack-free electrodes-
dc.subject.keywordAuthorLi2S deposition-
dc.subject.keywordPlusLIQUID ELECTROLYTE-
dc.subject.keywordPlusCATHODE MATERIAL-
dc.subject.keywordPlusMETAL ANODE-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusCAPACITY-
dc.subject.keywordPlusPOLYSULFIDES-
dc.subject.keywordPlusCOMPOSITE-
dc.subject.keywordPlusCELLS-
dc.subject.keywordPlusLIFE-
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