Electrochemical characteristics of phase-separated polymer electrolyte based on poly(vinylidene and ethylene fluoride-co-hexafluoropropane) carbonate

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dc.contributor.authorSong, JMko
dc.contributor.authorKang, HRko
dc.contributor.authorKim, SWko
dc.contributor.authorLee, WMko
dc.contributor.authorKim, HTko
dc.date.accessioned2013-08-22T02:25:59Z-
dc.date.available2013-08-22T02:25:59Z-
dc.date.created2013-08-21-
dc.date.created2013-08-21-
dc.date.issued2003-04-
dc.identifier.citationELECTROCHIMICA ACTA, v.48, no.10, pp.1339 - 1346-
dc.identifier.issn0013-4686-
dc.identifier.urihttp://hdl.handle.net/10203/175531-
dc.description.abstractA polymer electrolyte based on microporous poly(vinylidene fluoride-co-hexafluoropropane) (PVdF-HFP) film was studied for use in lithium ion batteries. The microporous PVdF-HFP (Kynar 2801) matrix was prepared from a cast of homogeneous mixture of PVdF-HFP and solvents such as ethylene carbonate (EC), dimethyl carbonate (DMC), and ethyl methyl carbonate (EMC). After evaporation of DMC and EMC, a sold film of the PVdF-HFP and the EC mixture was obtained. EC-rich phase started its formation in the PVdF-HFP/EC film at EC content of about 60 wt.% based on the total weight of PVdF-HFP and EC. The formation of the new phase resulted in the abrupt increase of the porosity of the PVdF-HFP matrix from 32 to 62%. The ionic conductivity of the film soaked in I M LiPF6-EC/DMC = 1/1 was significantly increased from order of 10(-4) S/cm to order of 10(-3) S/cm. at the EC content of 60 wt.%. Thermal and spectroscopic investigations showed that most of the EC interact with PVdF-HFP with the EC content being below 60 wt.%. MCMB/polymer electrolyte/LiCoO2 cells employing the microporous PVdF-HFP polymer film showed stable charging/discharging characteristics at I C rate and good rate capability. (C) 2003 Elsevier Science Ltd. All rights reserved.-
dc.languageEnglish-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.subjectLITHIUM-ION BATTERIES-
dc.subjectCONDUCTIVITY-
dc.subjectPVDF-
dc.subjectTRANSPORT-
dc.subjectBLEND-
dc.subjectMORPHOLOGY-
dc.subjectFILMS-
dc.subjectPMMA-
dc.titleElectrochemical characteristics of phase-separated polymer electrolyte based on poly(vinylidene and ethylene fluoride-co-hexafluoropropane) carbonate-
dc.typeArticle-
dc.identifier.wosid000182192900003-
dc.identifier.scopusid2-s2.0-0037473452-
dc.type.rimsART-
dc.citation.volume48-
dc.citation.issue10-
dc.citation.beginningpage1339-
dc.citation.endingpage1346-
dc.citation.publicationnameELECTROCHIMICA ACTA-
dc.identifier.doi10.1016/S0013-4686(02)00846-0-
dc.contributor.localauthorKim, HT-
dc.contributor.nonIdAuthorSong, JM-
dc.contributor.nonIdAuthorKang, HR-
dc.contributor.nonIdAuthorKim, SW-
dc.contributor.nonIdAuthorLee, WM-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorpolymer electrolyte-
dc.subject.keywordAuthorphase separation-
dc.subject.keywordAuthorpoly(vinylidene fluoride-co-hexafluoropropane)-
dc.subject.keywordAuthorethylene carbonate-
dc.subject.keywordAuthorlithium ion polymer battery-
dc.subject.keywordPlusLITHIUM-ION BATTERIES-
dc.subject.keywordPlusCONDUCTIVITY-
dc.subject.keywordPlusPVDF-
dc.subject.keywordPlusTRANSPORT-
dc.subject.keywordPlusBLEND-
dc.subject.keywordPlusMORPHOLOGY-
dc.subject.keywordPlusFILMS-
dc.subject.keywordPlusPMMA-
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