Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/57371
Registo completo
Campo DC | Valor | Idioma |
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dc.contributor.author | Costa, C. M. | por |
dc.contributor.author | Kundu, M. | por |
dc.contributor.author | Cardoso, Vanessa Fernandes | por |
dc.contributor.author | Machado, A. V. | por |
dc.contributor.author | Silva, Maria Manuela | por |
dc.contributor.author | Lanceros-Méndez, S. | por |
dc.date.accessioned | 2018-12-18T09:50:00Z | - |
dc.date.issued | 2018 | - |
dc.identifier.issn | 0376-7388 | por |
dc.identifier.uri | https://hdl.handle.net/1822/57371 | - |
dc.description.abstract | Separator membranes based on silica/poly(vinylidene fluoride) composites were prepared by a non-solvent induced phase separation (NIPS) process with different air exposure times before immersion in a water coagulation bath and for the same filler content of 20 wt%. Mesoporous silica spheres (SS) of ~ 400 nm average diameter were synthetized by sol-gel method and dispersed into the polymer matrix. It was demonstrated that the morphology, degree of porosity, uptake value and electrical properties of the composite membranes were influenced by the time of exposure to air and the presence of SS. The membranes were assembled in Li/C-LiFePO4half-cells and the best cycling performance was obtained for the composite membrane after 1 min exposure to air. This membrane shows an ionic conductivity of 0.9 mS cm−1. Moreover, at a very high rate of 2 C and after 50 cycles, the discharge capacity value, a capacity retention and a capacity fade are 95 mA h g−1, 79% and 4%, respectively. Thus, it was concluded that this novel separator membrane is suitable for lithium-ion battery applications. | por |
dc.description.sponsorship | The authors thank the FCT (Fundacao para a Ciencia e Tecnologia) for financial support under the framework of Strategic Funding grants UID/FIS/04650/2013, UID/EEA/04436/2013 and UID/QUI/0686/2016; and project no. POCI-01-0145-FEDER-028157. The authors also thank the FCT for financial support under grants SFRH/BPD/112547/2015 (C.M.C.) and SFRH/BPD/98109/2013 (V.F.C.) and Nanochem group of INL. Financial support from the Spanish Ministry of Economy and Competitiveness (MINECO) through project MAT2016-76039-C4-3-R (AEI/FEDER, UE) (including FEDER financial support) and from the Basque Government Industry Department under the ELKARTEK and HAZITEK Program is also acknowledged. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier B.V. | por |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147414/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147325/PT | por |
dc.relation | UID/QUI/0686/2016 | por |
dc.relation | SFRH/BPD/112547/2015 | por |
dc.relation | SFRH/BPD/98109/2013 | por |
dc.rights | restrictedAccess | por |
dc.subject | PVDF | por |
dc.subject | Silica | por |
dc.subject | Separators | por |
dc.subject | Lithium-ion batteries | por |
dc.title | Silica/poly(vinylidene fluoride) porous composite membranes for lithium-ion battery separators | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
oaire.citationStartPage | 842 | por |
oaire.citationEndPage | 851 | por |
oaire.citationVolume | 564 | por |
dc.identifier.doi | 10.1016/j.memsci.2018.07.092 | por |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Journal of Membrane Science | por |
Aparece nas coleções: | CDF - FCD - Artigos/Papers (with refereeing) CDQuim - Artigos (Papers) DEI - Artigos em revistas nacionais IPC - Artigos em revistas científicas internacionais com arbitragem |
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