Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/32396
Registo completo
Campo DC | Valor | Idioma |
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dc.contributor.author | Correia, Daniela M. | por |
dc.contributor.author | Costa, Carlos M. | por |
dc.contributor.author | Pereira, João Nunes | por |
dc.contributor.author | Silva, Maria Manuela | por |
dc.contributor.author | Botelho, Gabriela | por |
dc.contributor.author | Gómez Ribelles, J. L. | por |
dc.contributor.author | Lanceros-Méndez, S. | por |
dc.date.accessioned | 2015-01-06T15:14:26Z | - |
dc.date.available | 2015-01-06T15:14:26Z | - |
dc.date.issued | 2014 | - |
dc.identifier.issn | 0167-2738 | por |
dc.identifier.uri | https://hdl.handle.net/1822/32396 | - |
dc.description.abstract | Polymer blends based on poly(vinylidene fluoride-trifluoroethylene)/poly(ethylene oxide), P(VDF-TrFE)/PEO, with different PEO contents and molecular weights have been prepared for use as Li-ion battery separator membranes. The electrolyte uptake strongly depends on PEO content within the polymer blend. Thermal, mechanical and electrical properties of the membranes are dependent both on PEO content and molecular weight. A thermal degradation mechanism is also proposed as PEO content has a large influence on the activation energy and thermal degradation of P(VDF-TrFE). After electrolyte uptake, all polymer blends exhibit high ionic conductivity at room temperature, the highest value being 0.7 mS cm− 1 which was obtained for the 40/60 membrane with PEO with Mw = 10 kDa. From the point of view of lithium-ion battery application, polymer blends with 10 kDa molecular weight PEO are more adequate due to its excellent mechanical properties and high ionic conductivity. | por |
dc.description.sponsorship | This work is funded by FEDER funds through the "Programa Operational Factores de Competitividade - COMPETE" and by national funds by FCT - Fundacao para a Ciencia e a Tecnologia, project references Project PTDC/CTM/69316/2006, NANO/NMed-SD/0156/2007 and Pest-C/QUI/UI0686/2011 and grant SFRH/BD/82411/2011 (D.M.C.), SFRH/BD/68499/2010 (C.M.C.) and SFRH/BD/66930/2009 (J.N.P.). The authors also thank funding from Matepro - Optimizing Materials and Processes, "ref. NORTE-07-0124-FEDER-000037", co-funded by the "Programa Operacional Regional do Norte" (ON.2 - O Novo Norte), under the "Quadro de Referencia Estrategico Nacional" (QREN), through the "Fundo Europeu de Desenvolvimento Regional" (FEDER). CIBER-BBN is an initiative funded by the VI National R&D&i Plan 2008-2011, Iniciativa Ingenio 2010, Consolider Program, CIBER Actions and financed by the Instituto de Salud Carlos III with assistance from the European Regional Development Fund. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier | por |
dc.rights | restrictedAccess | por |
dc.subject | Polymer blend | por |
dc.subject | Molecular weight | por |
dc.subject | Battery separator | por |
dc.subject | Thermal degradation | por |
dc.subject | Electrochemical techniques | por |
dc.title | Physicochemical properties of poly(vinylidene fluoride-trifluoroethylene)/poly(ethylene oxide) blend membranes for lithium ion battery applications : influence of poly(ethylene oxide) molecular weight | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S0167273814003956 | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 54 | por |
oaire.citationEndPage | 67 | por |
oaire.citationIssue | Part A | por |
oaire.citationTitle | Solid states ionics | por |
oaire.citationVolume | 268 | por |
dc.identifier.doi | 10.1016/j.ssi.2014.09.029 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Solid State Ionics | por |
Aparece nas coleções: | CDF - FCD - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Mw-Blends_F.pdf Acesso restrito! | Mw-Blends_F | 1,57 MB | Adobe PDF | Ver/Abrir |