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Jung, Yoon Seok
Electrochemical Solid-State Energy Storage Lab
Research Interests
  • Batteries, All-solid-state batteries, solid electrolytes, electrodes, atomic layer deposition,energy storage devices

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Electrochemical stability of bis(trifluoromethanesulfonyl)imide-based ionic liquids at elevated temperature as a solvent for a titanium oxide bronze electrode

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dc.contributor.author Mun, Junyoung ko
dc.contributor.author Jung, Yoon Seok ko
dc.contributor.author Yim, Taeeun ko
dc.contributor.author Lee, Hyun Yeong ko
dc.contributor.author Kim, Hyo-Jin ko
dc.contributor.author Kim, Young Gyu ko
dc.contributor.author Oh, Seung M. ko
dc.date.available 2015-01-09T00:50:42Z -
dc.date.created 2015-01-08 ko
dc.date.issued 2009-12 -
dc.identifier.citation JOURNAL OF POWER SOURCES, v.194, no.2, pp.1068 - 1074 ko
dc.identifier.issn 0378-7753 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/10023 -
dc.identifier.uri http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=69449086259 ko
dc.description.abstract Four different electrolytes are prepared by dissolving a Li salt in three different room-temperature ionic liquids (RTILs) and also in a conventional organic solvent. The cathodic (electrochemical reduction) stability of these electrolytes is compared at both ambient and elevated temperature by potential cycling on a TiO2-B electrode. At room temperature, the stability of pyrrolidinium- and piperidinium-based RTILs is comparable with that of the carbonate-based organic solvent, which is in contrast to the severely decomposed imidazolium-based RTIL. At elevated temperature (120 °C), the imidazolium-based RTIL undergoes even more significant cathodic decomposition that results in the deposition of a resistive surface film and leads to eventual cell degradation. By contrast, the cathodic decomposition and concomitant film deposition are not serious with pyrrolidinium- and piperidinium-based RTILs even at this high-temperature, so that the TiO2-B/Li cell operates with reasonably good cycle performance. The latter two RTILs appear to be promising solvents for lithium-ion batteries that are durable against occasional exposure to high-temperature. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher ELSEVIER SCIENCE BV ko
dc.subject Lithium-ion battery ko
dc.subject Room-temperature ionic liquids ko
dc.subject Titanium oxide bronze ko
dc.subject Thermal stability ko
dc.subject Cathodic stability ko
dc.subject Electrolyte decomposition ko
dc.title Electrochemical stability of bis(trifluoromethanesulfonyl)imide-based ionic liquids at elevated temperature as a solvent for a titanium oxide bronze electrode ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-69449086259 ko
dc.identifier.wosid 000270620500065 ko
dc.type.rims ART ko
dc.description.wostc 32 *
dc.description.scopustc 32 *
dc.date.tcdate 2015-12-28 *
dc.date.scptcdate 2015-11-04 *
dc.identifier.doi 10.1016/j.jpowsour.2009.05.048 ko
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