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DC Field Value Language Kim, Kyunggu - Lee, Hochun - 2018-10-30T06:00:01Z - 2018-10-30T06:00:01Z - 2018-10-15 - 2018-09 -
dc.identifier.citation Physical Chemistry Chemical Physics, v.20, no.36, pp.23433 - 23440 -
dc.identifier.issn 1463-9076 -
dc.identifier.uri -
dc.description.abstract Thermoelectrochemical cells (TECs) provide conspicuous advantages, including a high Seebeck coefficient (S-e), design flexibility, and low cost compared with conventional thermoelectric devices. Here, we investigated TECs employing Li metal electrodes (Li-TECs) and a series of glyme (CH3O[CH2CH2O]nCH(3), n = 1-4, nG) solvents with 0.5-3.0 M lithium-imide salts (lithium bis [fluorosulfonyl] imide, LiFSI, and lithium bis[trifluoromethane sulfonyl] imide, LiTFSI). The S-e value and power performance of Li-TECs markedly depend on the nature of glyme solvents and Li salt concentration. The dependency of S-e on the solvation structure of the Li-ions is examined via Raman measurements, and the internal resistance of Li-TECs is analyzed using electrochemical impedance spectroscopy. Notably, a Li-TEC with 1.0 M LiFSI 1G displays about two times higher power density and about eight times higher conversion efficiency than a conventional Cu-TEC utilizing aqueous electrolytes, which is ascribed to the high S-e value and low thermal conductivity of the former. In addition, for a Li-TEC with 1.0 M LiFSI 1G, the low-temperature performance is examined to assess its practical feasibility. -
dc.language English -
dc.publisher Royal Society of Chemistry -
dc.title Thermoelectrochemical cells based on Li+/Li redox couples in LiFSI glyme electrolytes -
dc.type Article -
dc.identifier.doi 10.1039/c8cp03155j -
dc.identifier.wosid 000447370600027 -
dc.identifier.scopusid 2-s2.0-85053923538 -
dc.type.local Article(Overseas) -
dc.type.rims ART -
dc.description.journalClass 1 -
dc.citation.publicationname Physical Chemistry Chemical Physics -
dc.contributor.nonIdAuthor Kim, Kyunggu -
dc.identifier.citationVolume 20 -
dc.identifier.citationNumber 36 -
dc.identifier.citationStartPage 23433 -
dc.identifier.citationEndPage 23440 -
dc.identifier.citationTitle Physical Chemistry Chemical Physics -
dc.type.journalArticle Article -
dc.description.isOpenAccess N -
dc.subject.keywordPlus THERMO-ELECTROCHEMICAL CELL -
dc.subject.keywordPlus LITHIUM-ION BATTERIES -
dc.subject.keywordPlus THERMOGALVANIC CELLS -
dc.subject.keywordPlus APROTIC-SOLVENTS -
dc.subject.keywordPlus NANOTUBE -
dc.subject.keywordPlus POWER -
dc.subject.keywordPlus ASSOCIATION -
dc.subject.keywordPlus ELECTRODES -
dc.subject.keywordPlus SOLVATION -
dc.subject.keywordPlus STABILITY -
dc.contributor.affiliatedAuthor Kim, Kyunggu -
dc.contributor.affiliatedAuthor Lee, Hochun -
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Department of Energy Science and Engineering Electrochemistry Laboratory for Sustainable Energy(ELSE) 1. Journal Articles


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