Synthesis and electrochemical characterization of aPEO-based polymer electrolyte

Detalhes bibliográficos
Autor(a) principal: Rodrigues, L. C.
Data de Publicação: 2012
Outros Autores: Silva, Maria Manuela, Veiga, H., Esperança, J. M. S. S., Costa, M., Smith, Michael John
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/15643
Resumo: In this paper the preparation and purification of an amorphous polymer network, poly[oxymethylene-oligo(oxyethylene)], designated as aPEO, are described. The flexible CH2CH2O segments in this host polymer combine appropriate mechanical properties, over a critical temperature range from -20 to 60 ºC, with labile salt-host interactions. The intensity of these interactions is sufficient to permit solubilization of the guest salt in the host polymer while permitting adequate mobility of ionic guest species. We also report the preparation and characterization of a novel polymer electrolyte based on this host polymer with lithium tetrafluoroborate, LiBF4, as guest salt. Electrolyte samples are thermally stable up to approximately 250 ºC and completely amorphous above room temperature. The electrolyte composition determines the glass transition temperature of electrolytes and was found to vary between –50.8 and –62.4 ºC. The electrolyte composition that supports the maximum room temperature conductivity of this electrolyte system is n = 5 (2.10×10-5 S cm-1 at 25 ºC). The electrochemical stability domain of the sample with n = 5 spans about 5 V measured against a Li/Li+ reference. This new electrolyte system represents a promising alternative to LiCF3SO3 and LiClO4-doped PEO analogues.
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spelling Synthesis and electrochemical characterization of aPEO-based polymer electrolyteSPEslithium tetrafluoroborateelectrochemical analysisthermal analysisPoly[oxymethylene-oligo(oxyethylene)]Science & TechnologyIn this paper the preparation and purification of an amorphous polymer network, poly[oxymethylene-oligo(oxyethylene)], designated as aPEO, are described. The flexible CH2CH2O segments in this host polymer combine appropriate mechanical properties, over a critical temperature range from -20 to 60 ºC, with labile salt-host interactions. The intensity of these interactions is sufficient to permit solubilization of the guest salt in the host polymer while permitting adequate mobility of ionic guest species. We also report the preparation and characterization of a novel polymer electrolyte based on this host polymer with lithium tetrafluoroborate, LiBF4, as guest salt. Electrolyte samples are thermally stable up to approximately 250 ºC and completely amorphous above room temperature. The electrolyte composition determines the glass transition temperature of electrolytes and was found to vary between –50.8 and –62.4 ºC. The electrolyte composition that supports the maximum room temperature conductivity of this electrolyte system is n = 5 (2.10×10-5 S cm-1 at 25 ºC). The electrochemical stability domain of the sample with n = 5 spans about 5 V measured against a Li/Li+ reference. This new electrolyte system represents a promising alternative to LiCF3SO3 and LiClO4-doped PEO analogues.Fundação para a Ciência e TecnologiaSpringerUniversidade do MinhoRodrigues, L. C.Silva, Maria ManuelaVeiga, H.Esperança, J. M. S. S.Costa, M.Smith, Michael John20122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/15643engRodrigues, L.C., Silva, M.M., Veiga, H.I.M. et al. J Solid State Electrochem (2012) 16: 1623. https://doi.org/10.1007/s10008-011-1569-31432-848810.1007/s10008-011-1569-3The original publication is available at www.springerlink.cominfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-05-11T04:41:48Zoai:repositorium.sdum.uminho.pt:1822/15643Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-11T04:41:48Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Synthesis and electrochemical characterization of aPEO-based polymer electrolyte
title Synthesis and electrochemical characterization of aPEO-based polymer electrolyte
spellingShingle Synthesis and electrochemical characterization of aPEO-based polymer electrolyte
Rodrigues, L. C.
SPEs
lithium tetrafluoroborate
electrochemical analysis
thermal analysis
Poly[oxymethylene-oligo(oxyethylene)]
Science & Technology
title_short Synthesis and electrochemical characterization of aPEO-based polymer electrolyte
title_full Synthesis and electrochemical characterization of aPEO-based polymer electrolyte
title_fullStr Synthesis and electrochemical characterization of aPEO-based polymer electrolyte
title_full_unstemmed Synthesis and electrochemical characterization of aPEO-based polymer electrolyte
title_sort Synthesis and electrochemical characterization of aPEO-based polymer electrolyte
author Rodrigues, L. C.
author_facet Rodrigues, L. C.
Silva, Maria Manuela
Veiga, H.
Esperança, J. M. S. S.
Costa, M.
Smith, Michael John
author_role author
author2 Silva, Maria Manuela
Veiga, H.
Esperança, J. M. S. S.
Costa, M.
Smith, Michael John
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Rodrigues, L. C.
Silva, Maria Manuela
Veiga, H.
Esperança, J. M. S. S.
Costa, M.
Smith, Michael John
dc.subject.por.fl_str_mv SPEs
lithium tetrafluoroborate
electrochemical analysis
thermal analysis
Poly[oxymethylene-oligo(oxyethylene)]
Science & Technology
topic SPEs
lithium tetrafluoroborate
electrochemical analysis
thermal analysis
Poly[oxymethylene-oligo(oxyethylene)]
Science & Technology
description In this paper the preparation and purification of an amorphous polymer network, poly[oxymethylene-oligo(oxyethylene)], designated as aPEO, are described. The flexible CH2CH2O segments in this host polymer combine appropriate mechanical properties, over a critical temperature range from -20 to 60 ºC, with labile salt-host interactions. The intensity of these interactions is sufficient to permit solubilization of the guest salt in the host polymer while permitting adequate mobility of ionic guest species. We also report the preparation and characterization of a novel polymer electrolyte based on this host polymer with lithium tetrafluoroborate, LiBF4, as guest salt. Electrolyte samples are thermally stable up to approximately 250 ºC and completely amorphous above room temperature. The electrolyte composition determines the glass transition temperature of electrolytes and was found to vary between –50.8 and –62.4 ºC. The electrolyte composition that supports the maximum room temperature conductivity of this electrolyte system is n = 5 (2.10×10-5 S cm-1 at 25 ºC). The electrochemical stability domain of the sample with n = 5 spans about 5 V measured against a Li/Li+ reference. This new electrolyte system represents a promising alternative to LiCF3SO3 and LiClO4-doped PEO analogues.
publishDate 2012
dc.date.none.fl_str_mv 2012
2012-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/15643
url http://hdl.handle.net/1822/15643
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Rodrigues, L.C., Silva, M.M., Veiga, H.I.M. et al. J Solid State Electrochem (2012) 16: 1623. https://doi.org/10.1007/s10008-011-1569-3
1432-8488
10.1007/s10008-011-1569-3
The original publication is available at www.springerlink.com
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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