Publicação
Characterization of Plasticized PEO Based Solid Polymer Electrolyte by XRD and AC Impedance Methods
| Resumo: | The ionic conductivity of lithium based solid polymer films prepared from poly (ethylene oxide) (PEO) and lithium hexafluoarsenate (LiAsF6) with varying compositions of plasticizers likedibutyl sebacate (DBS) and ethylene carbonate (EC) was measured by AC impedance method. Polymer film composition viz. (PEO)8-LiAsF6-(DBS)0.4-(EC)0.1 has been evaluated as an optimum composition as evidenced from its high conductivity and freestanding ability. The high conductivity observed for the polymer electrolyte with this composition has been attributed to an enhanced amorphous character and a reduced energy barrier to the segmental motion of lithium ions in the matrix. The temperature dependence of conductivity on the polymer films, with and without plasticizers, appears to obey the Arrhenius law. However, the activation energy of the plasticized polymer film is 0.81 KJ/mol, a value considerably lower than 10 KJ/mol obtained for the unplasticized electrolyte, making the polymer to be a prospective candidate as lithium-ion conducting electrolyte for rechargeable lithium batteries. |
|---|---|
| Autores principais: | Ragavendran,K. |
| Outros Autores: | Kalyani,P.; Veluchamy,A.; Banumathi,S.; Thirunakaran,R.; Benedict,T.J. |
| Assunto: | plasticizer solid polymer electrolyte conductivity dibutylsebacate |
| Ano: | 2004 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Fundação para a Ciência e Tecnologia |
| Idioma: | inglês |
| Origem: | SciELO Portugal |
| _version_ | 1868441710576533504 |
|---|---|
| author | Ragavendran,K. |
| author2 | Kalyani,P. Veluchamy,A. Banumathi,S. Thirunakaran,R. Benedict,T.J. |
| author2_role | author author author author author |
| author_facet | Ragavendran,K. Kalyani,P. Veluchamy,A. Banumathi,S. Thirunakaran,R. Benedict,T.J. |
| author_role | author |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Ragavendran,K.\"},{\"Person.name\":\"Kalyani,P.\"},{\"Person.name\":\"Veluchamy,A.\"},{\"Person.name\":\"Banumathi,S.\"},{\"Person.name\":\"Thirunakaran,R.\"},{\"Person.name\":\"Benedict,T.J.\"}] |
| datacite.creators.creator.creatorName.fl_str_mv | Ragavendran,K. Kalyani,P. Veluchamy,A. Banumathi,S. Thirunakaran,R. Benedict,T.J. |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | plasticizer solid polymer electrolyte conductivity dibutylsebacate |
| datacite.titles.title.fl_str_mv | Characterization of Plasticized PEO Based Solid Polymer Electrolyte by XRD and AC Impedance Methods |
| dc.creator.none.fl_str_mv | Ragavendran,K. Kalyani,P. Veluchamy,A. Banumathi,S. Thirunakaran,R. Benedict,T.J. |
| dc.format.none.fl_str_mv | text/html |
| dc.identifier.none.fl_str_mv | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042004000200006 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Sociedade Portuguesa de Electroquímica |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.source.none.fl_str_mv | Portugaliae Electrochimica Acta v.22 n.2 2004 |
| dc.subject.none.fl_str_mv | plasticizer solid polymer electrolyte conductivity dibutylsebacate |
| dc.title.fl_str_mv | Characterization of Plasticized PEO Based Solid Polymer Electrolyte by XRD and AC Impedance Methods |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The ionic conductivity of lithium based solid polymer films prepared from poly (ethylene oxide) (PEO) and lithium hexafluoarsenate (LiAsF6) with varying compositions of plasticizers likedibutyl sebacate (DBS) and ethylene carbonate (EC) was measured by AC impedance method. Polymer film composition viz. (PEO)8-LiAsF6-(DBS)0.4-(EC)0.1 has been evaluated as an optimum composition as evidenced from its high conductivity and freestanding ability. The high conductivity observed for the polymer electrolyte with this composition has been attributed to an enhanced amorphous character and a reduced energy barrier to the segmental motion of lithium ions in the matrix. The temperature dependence of conductivity on the polymer films, with and without plasticizers, appears to obey the Arrhenius law. However, the activation energy of the plasticized polymer film is 0.81 KJ/mol, a value considerably lower than 10 KJ/mol obtained for the unplasticized electrolyte, making the polymer to be a prospective candidate as lithium-ion conducting electrolyte for rechargeable lithium batteries. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| id | scielopt_ddbc629acea0580deee70d642afa67dc |
| identifier.url.fl_str_mv | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042004000200006 |
| instacron_str | SciELO |
| institution | Fundação para a Ciência e Tecnologia |
| instname_str | Fundação para a Ciência e Tecnologia |
| language | eng |
| network_acronym_str | scielopt |
| network_name_str | SciELO Portugal |
| oai_identifier_str | oai:scielo:S0872-19042004000200006 |
| organization_str_mv | urn:organizationAcronym:scielo |
| person_str_mv | Ragavendran,K. Kalyani,P. Veluchamy,A. Banumathi,S. Thirunakaran,R. Benedict,T.J. |
| publishDate | 2004 |
| publisher.none.fl_str_mv | Sociedade Portuguesa de Electroquímica |
| reponame_str | SciELO Portugal |
| repository_id_str | urn:repositoryAcronym:scielopt |
| service_str_mv | urn:repositoryAcronym:scielopt |
| spelling | Characterization of Plasticized PEO Based Solid Polymer Electrolyte by XRD and AC Impedance MethodsRagavendran,K.Kalyani,P.Veluchamy,A.Banumathi,S.Thirunakaran,R.Benedict,T.J.plasticizersolid polymer electrolyteconductivitydibutylsebacateopen accesshttp://purl.org/coar/access_right/c_abf2http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042004000200006URLhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042004000200006URLHasVersion2004-01-01The ionic conductivity of lithium based solid polymer films prepared from poly (ethylene oxide) (PEO) and lithium hexafluoarsenate (LiAsF6) with varying compositions of plasticizers likedibutyl sebacate (DBS) and ethylene carbonate (EC) was measured by AC impedance method. Polymer film composition viz. (PEO)8-LiAsF6-(DBS)0.4-(EC)0.1 has been evaluated as an optimum composition as evidenced from its high conductivity and freestanding ability. The high conductivity observed for the polymer electrolyte with this composition has been attributed to an enhanced amorphous character and a reduced energy barrier to the segmental motion of lithium ions in the matrix. The temperature dependence of conductivity on the polymer films, with and without plasticizers, appears to obey the Arrhenius law. However, the activation energy of the plasticized polymer film is 0.81 KJ/mol, a value considerably lower than 10 KJ/mol obtained for the unplasticized electrolyte, making the polymer to be a prospective candidate as lithium-ion conducting electrolyte for rechargeable lithium batteries.Sociedade Portuguesa de ElectroquímicaPortugaliae Electrochimica Acta v.22 n.2 2004text/htmlengjournal articlehttp://purl.org/coar/resource_type/c_6501literature |
| spellingShingle | Characterization of Plasticized PEO Based Solid Polymer Electrolyte by XRD and AC Impedance Methods Ragavendran,K. plasticizer solid polymer electrolyte conductivity dibutylsebacate |
| status | SINGLETON |
| subject.fl_str_mv | plasticizer solid polymer electrolyte conductivity dibutylsebacate |
| title | Characterization of Plasticized PEO Based Solid Polymer Electrolyte by XRD and AC Impedance Methods |
| title_full | Characterization of Plasticized PEO Based Solid Polymer Electrolyte by XRD and AC Impedance Methods |
| title_fullStr | Characterization of Plasticized PEO Based Solid Polymer Electrolyte by XRD and AC Impedance Methods |
| title_full_unstemmed | Characterization of Plasticized PEO Based Solid Polymer Electrolyte by XRD and AC Impedance Methods |
| title_short | Characterization of Plasticized PEO Based Solid Polymer Electrolyte by XRD and AC Impedance Methods |
| title_sort | Characterization of Plasticized PEO Based Solid Polymer Electrolyte by XRD and AC Impedance Methods |
| topic | plasticizer solid polymer electrolyte conductivity dibutylsebacate |
| topic_facet | plasticizer solid polymer electrolyte conductivity dibutylsebacate |
| url | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042004000200006 |
| visible | 1 |