Preparation and characterization of polymeric electrolytes constituted by poly(ethylene oxide), sol–gel silica and lithium perchlorate
Electrolytes made up of poly(ethylene oxide) (PEO), sol–gel silica and LiClO 4 were prepared. Poly(ethylene oxide-g-dimethylsiloxane) (SEO) was used as a compatibilizer. Two groups of samples were investigated: in group A, the PEO content relative to the tetraethoxysilane, SEO and LiClO 4 changed fr...
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| Veröffentlicht in: | Solid state ionics 2002-03, Vol.147 (1), p.157-170 |
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| creator | Zoppi, R.A Gonçalves, M.C |
| description | Electrolytes made up of poly(ethylene oxide) (PEO), sol–gel silica and LiClO
4 were prepared. Poly(ethylene oxide-g-dimethylsiloxane) (SEO) was used as a compatibilizer. Two groups of samples were investigated: in group A, the PEO content relative to the tetraethoxysilane, SEO and LiClO
4 changed from 2.6 to 10 wt.%; in group B it varied from 35 to 69 wt.%. Electrolytes with conductivity in the range of 10
−6–10
−4 S/cm (25 °C) were obtained. In group A, transparent gels, transparent and flexible films and white powders were obtained. Differential scanning calorimetry (DSC) and light microscopy showed that all these samples are amorphous. On the other hand, all samples of group B were translucent films, showing typical spherulites of the PEO crystalline fraction. In the DSC analysis, an endothermic peak near 70 °C, assigned to the PEO crystalline fraction melting, was observed. Most of the samples of both groups A and B were thermally stable up to 200 °C. |
| doi_str_mv | 10.1016/S0167-2738(01)01038-4 |
| format | Article |
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4 were prepared. Poly(ethylene oxide-g-dimethylsiloxane) (SEO) was used as a compatibilizer. Two groups of samples were investigated: in group A, the PEO content relative to the tetraethoxysilane, SEO and LiClO
4 changed from 2.6 to 10 wt.%; in group B it varied from 35 to 69 wt.%. Electrolytes with conductivity in the range of 10
−6–10
−4 S/cm (25 °C) were obtained. In group A, transparent gels, transparent and flexible films and white powders were obtained. Differential scanning calorimetry (DSC) and light microscopy showed that all these samples are amorphous. On the other hand, all samples of group B were translucent films, showing typical spherulites of the PEO crystalline fraction. In the DSC analysis, an endothermic peak near 70 °C, assigned to the PEO crystalline fraction melting, was observed. Most of the samples of both groups A and B were thermally stable up to 200 °C.</description><identifier>ISSN: 0167-2738</identifier><identifier>EISSN: 1872-7689</identifier><identifier>DOI: 10.1016/S0167-2738(01)01038-4</identifier><identifier>CODEN: SSIOD3</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Direct energy conversion and energy accumulation ; Electrical engineering. Electrical power engineering ; Electrical power engineering ; Electrochemical conversion: primary and secondary batteries, fuel cells ; Exact sciences and technology ; Ionic conductivity ; Poly(ethylene oxide) ; Polymeric electrolytes ; Sol–gel process</subject><ispartof>Solid state ionics, 2002-03, Vol.147 (1), p.157-170</ispartof><rights>2002</rights><rights>2002 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c368t-48df2d3e091a120544a9ea2442c6f785bc5359d8feb2482ff875663d8e815e9c3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0167-2738(01)01038-4$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13532450$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Zoppi, R.A</creatorcontrib><creatorcontrib>Gonçalves, M.C</creatorcontrib><title>Preparation and characterization of polymeric electrolytes constituted by poly(ethylene oxide), sol–gel silica and lithium perchlorate</title><title>Solid state ionics</title><description>Electrolytes made up of poly(ethylene oxide) (PEO), sol–gel silica and LiClO
4 were prepared. Poly(ethylene oxide-g-dimethylsiloxane) (SEO) was used as a compatibilizer. Two groups of samples were investigated: in group A, the PEO content relative to the tetraethoxysilane, SEO and LiClO
4 changed from 2.6 to 10 wt.%; in group B it varied from 35 to 69 wt.%. Electrolytes with conductivity in the range of 10
−6–10
−4 S/cm (25 °C) were obtained. In group A, transparent gels, transparent and flexible films and white powders were obtained. Differential scanning calorimetry (DSC) and light microscopy showed that all these samples are amorphous. On the other hand, all samples of group B were translucent films, showing typical spherulites of the PEO crystalline fraction. In the DSC analysis, an endothermic peak near 70 °C, assigned to the PEO crystalline fraction melting, was observed. Most of the samples of both groups A and B were thermally stable up to 200 °C.</description><subject>Applied sciences</subject><subject>Direct energy conversion and energy accumulation</subject><subject>Electrical engineering. Electrical power engineering</subject><subject>Electrical power engineering</subject><subject>Electrochemical conversion: primary and secondary batteries, fuel cells</subject><subject>Exact sciences and technology</subject><subject>Ionic conductivity</subject><subject>Poly(ethylene oxide)</subject><subject>Polymeric electrolytes</subject><subject>Sol–gel process</subject><issn>0167-2738</issn><issn>1872-7689</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><recordid>eNqFkM-KFDEQh4MoOK4-gpCLsgvbmv-dPsmyuCosKKjnkEkqTiTTaZOMOJ48evcNfRKzM4sevVSo4qv6kQ-hx5Q8o4Sq5-97GQc2cn1K6BmhhOtB3EErqkc2jEpPd9HqL3IfPaj1MyFEca1W6Oe7AosttsU8Yzt77Da9cw1K_H4c5oCXnPbbPnEYErhWetugYpfn2mLbNfB4vT9Qp9A2-wQz4Pwtejg7xzWn3z9-fYKEa0zR2UNIim0Td1u8QHGblHs8PET3gk0VHt2-J-jj1csPl6-H67ev3lxeXA-OK90GoX1gngOZqKWMSCHsBJYJwZwKo5ZrJ7mcvA6wZkKzEPQoleJeg6YSJsdP0NPj3aXkLzuozWxjdZCSnSHvqmGjUiOXrIPyCLqSay0QzFLi1pa9ocTceDcH7-ZGqiHUHLwb0fee3AbY6mwKxc4u1n_LXHImJOnciyMH_bdfIxRTXYTZgY-lSzY-x_8k_QFCtpt5</recordid><startdate>20020301</startdate><enddate>20020301</enddate><creator>Zoppi, R.A</creator><creator>Gonçalves, M.C</creator><general>Elsevier B.V</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20020301</creationdate><title>Preparation and characterization of polymeric electrolytes constituted by poly(ethylene oxide), sol–gel silica and lithium perchlorate</title><author>Zoppi, R.A ; Gonçalves, M.C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c368t-48df2d3e091a120544a9ea2442c6f785bc5359d8feb2482ff875663d8e815e9c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Applied sciences</topic><topic>Direct energy conversion and energy accumulation</topic><topic>Electrical engineering. Electrical power engineering</topic><topic>Electrical power engineering</topic><topic>Electrochemical conversion: primary and secondary batteries, fuel cells</topic><topic>Exact sciences and technology</topic><topic>Ionic conductivity</topic><topic>Poly(ethylene oxide)</topic><topic>Polymeric electrolytes</topic><topic>Sol–gel process</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zoppi, R.A</creatorcontrib><creatorcontrib>Gonçalves, M.C</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Solid state ionics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zoppi, R.A</au><au>Gonçalves, M.C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation and characterization of polymeric electrolytes constituted by poly(ethylene oxide), sol–gel silica and lithium perchlorate</atitle><jtitle>Solid state ionics</jtitle><date>2002-03-01</date><risdate>2002</risdate><volume>147</volume><issue>1</issue><spage>157</spage><epage>170</epage><pages>157-170</pages><issn>0167-2738</issn><eissn>1872-7689</eissn><coden>SSIOD3</coden><abstract>Electrolytes made up of poly(ethylene oxide) (PEO), sol–gel silica and LiClO
4 were prepared. Poly(ethylene oxide-g-dimethylsiloxane) (SEO) was used as a compatibilizer. Two groups of samples were investigated: in group A, the PEO content relative to the tetraethoxysilane, SEO and LiClO
4 changed from 2.6 to 10 wt.%; in group B it varied from 35 to 69 wt.%. Electrolytes with conductivity in the range of 10
−6–10
−4 S/cm (25 °C) were obtained. In group A, transparent gels, transparent and flexible films and white powders were obtained. Differential scanning calorimetry (DSC) and light microscopy showed that all these samples are amorphous. On the other hand, all samples of group B were translucent films, showing typical spherulites of the PEO crystalline fraction. In the DSC analysis, an endothermic peak near 70 °C, assigned to the PEO crystalline fraction melting, was observed. Most of the samples of both groups A and B were thermally stable up to 200 °C.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/S0167-2738(01)01038-4</doi><tpages>14</tpages></addata></record> |
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| ispartof | Solid state ionics, 2002-03, Vol.147 (1), p.157-170 |
| issn | 0167-2738 1872-7689 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_27667352 |
| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Direct energy conversion and energy accumulation Electrical engineering. Electrical power engineering Electrical power engineering Electrochemical conversion: primary and secondary batteries, fuel cells Exact sciences and technology Ionic conductivity Poly(ethylene oxide) Polymeric electrolytes Sol–gel process |
| title | Preparation and characterization of polymeric electrolytes constituted by poly(ethylene oxide), sol–gel silica and lithium perchlorate |
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