Polysulfide rejection layer from alpha-lipoic acid for high performance lithium-sulfur battery

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dc.contributor.authorSong, Jong-Chanko
dc.contributor.authorNoh, Hyungjunko
dc.contributor.authorLee, Hongkyungko
dc.contributor.authorLee, Je-Namko
dc.contributor.authorLee, Dong-Jinko
dc.contributor.authorLee, Yunjuko
dc.contributor.authorKim, Chul Hwanko
dc.contributor.authorLee, Yong Minko
dc.contributor.authorPark, Jung-Kiko
dc.contributor.authorKim, Hee-Takko
dc.date.accessioned2015-03-27T07:46:36Z-
dc.date.available2015-03-27T07:46:36Z-
dc.date.created2014-12-01-
dc.date.created2014-12-01-
dc.date.created2014-12-01-
dc.date.issued2015-
dc.identifier.citationJOURNAL OF MATERIALS CHEMISTRY A, v.3, no.1, pp.323 - 330-
dc.identifier.issn2050-7488-
dc.identifier.urihttp://hdl.handle.net/10203/194463-
dc.description.abstractThe polysulfide shuttle has been an impediment to the development of lithium-sulfur batteries with high capacity and cycling stability. Here, we report a new strategy to remedy the problem that uses alpha-lipoic acid (ALA) as an electrolyte additive to form a polysulfide rejection layer on the cathode surface via the electrochemical and chemical polymerization of ALA and a stable solid electrolyte interface (SEI) layer on the Li metal anode during the first discharge. The poly(ALA) layer formed in situ effectively prevents the polysulfide shuttle and consequently enhances the discharge capacity and cycling stability, owing to the Donnan potential developed between the polysulfide-concentrated cathode and the fixed negative charge-concentrated poly(ALA) layer. Also, the SEI layer additionally prevents the chemical reaction of the polysulfide and Li metal anode. The approach, based on the double effect, encompasses a new scientific strategy and provides a practical methodology for high performance lithium-sulfur batteries.-
dc.languageEnglish-
dc.publisherROYAL SOC CHEMISTRY-
dc.titlePolysulfide rejection layer from alpha-lipoic acid for high performance lithium-sulfur battery-
dc.typeArticle-
dc.identifier.wosid000345962800040-
dc.identifier.scopusid2-s2.0-84915822393-
dc.type.rimsART-
dc.citation.volume3-
dc.citation.issue1-
dc.citation.beginningpage323-
dc.citation.endingpage330-
dc.citation.publicationnameJOURNAL OF MATERIALS CHEMISTRY A-
dc.identifier.doi10.1039/c4ta03625e-
dc.contributor.localauthorPark, Jung-Ki-
dc.contributor.localauthorKim, Hee-Tak-
dc.contributor.nonIdAuthorNoh, Hyungjun-
dc.contributor.nonIdAuthorLee, Yunju-
dc.contributor.nonIdAuthorKim, Chul Hwan-
dc.contributor.nonIdAuthorLee, Yong Min-
dc.type.journalArticleArticle-
dc.subject.keywordPlusPOSITIVE ELECTRODE MATERIALS-
dc.subject.keywordPlusLI-S BATTERY-
dc.subject.keywordPlusIRREVERSIBLE OXIDATION-
dc.subject.keywordPlusRECHARGEABLE BATTERIES-
dc.subject.keywordPlusDISULFIDE-
dc.subject.keywordPlusION-
dc.subject.keywordPlusCATHODE-
dc.subject.keywordPlusSTABILITY-
dc.subject.keywordPlusCHEMISTRY-
dc.subject.keywordPlusSHUTTLE-
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