DC Field | Value | Language |
---|---|---|
dc.contributor.author | Seo, Hyeon Kook | ko |
dc.contributor.author | Hwa, Yoon | ko |
dc.contributor.author | Chang, Joon Ha | ko |
dc.contributor.author | Park, Jae Yeol | ko |
dc.contributor.author | Lee, Jae Sang | ko |
dc.contributor.author | Park, Jungjae | ko |
dc.contributor.author | Cairns, Elton J. | ko |
dc.contributor.author | Yuk, Jong Min | ko |
dc.date.accessioned | 2020-05-08T08:20:25Z | - |
dc.date.available | 2020-05-08T08:20:25Z | - |
dc.date.created | 2020-05-06 | - |
dc.date.created | 2020-05-06 | - |
dc.date.issued | 2020-03 | - |
dc.identifier.citation | NANO LETTERS, v.20, no.3, pp.2080 - 2086 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | http://hdl.handle.net/10203/274150 | - |
dc.description.abstract | Understanding of lithium polysulfide (Li-PS) formation and the shuttle phenomenon is essential for practical application of the lithium/sulfur (Li/S) cell, which has superior theoretical specific energy (2600 Wh/kg). However, it suffers from the lack of direct observation on behaviors of soluble Li-PS in liquid electrolytes. Using in situ graphene liquid cell electron microscopy, we have visualized formation and diffusion of Li-PS simultaneous with morphological and phase evolutions of sulfur nanoparticles during lithiation. We found that the morphological changes and Li-PS diffusion are retarded by ionic liquid (IL) addition into electrolyte. Chronoamperometric shuttle current measurement confirms that IL addition lowers the experimental diffusion coefficient of Li-PS by 2 orders of magnitude relative to that in IL-free electrolyte and thus suppresses the Li-PS shuttle current, which accounts for better cyclability and Coulombic efficiency of the Li/S cell. This study provides significant insights into electrolyte design to inhibit the polysulfide shuttle phenomenon. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Direct Visualization of Lithium Polysulfides and Their Suppression in Liquid Electrolyte | - |
dc.type | Article | - |
dc.identifier.wosid | 000526408800077 | - |
dc.identifier.scopusid | 2-s2.0-85081944276 | - |
dc.type.rims | ART | - |
dc.citation.volume | 20 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 2080 | - |
dc.citation.endingpage | 2086 | - |
dc.citation.publicationname | NANO LETTERS | - |
dc.identifier.doi | 10.1021/acs.nanolett.0c00058 | - |
dc.contributor.localauthor | Yuk, Jong Min | - |
dc.contributor.nonIdAuthor | Hwa, Yoon | - |
dc.contributor.nonIdAuthor | Lee, Jae Sang | - |
dc.contributor.nonIdAuthor | Cairns, Elton J. | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | lithium sulfur cells | - |
dc.subject.keywordAuthor | lithium polysulfides | - |
dc.subject.keywordAuthor | ionic liquid | - |
dc.subject.keywordAuthor | in situ transmission electron microscopy | - |
dc.subject.keywordAuthor | graphene liquid cell | - |
dc.subject.keywordPlus | IN-SITU | - |
dc.subject.keywordPlus | SULFUR | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CELL | - |
dc.subject.keywordPlus | CHALLENGES | - |
dc.subject.keywordPlus | LITHIATION | - |
dc.subject.keywordPlus | GROWTH | - |
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