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Conductivity of liquid lithium electrolytes with dispersed mesoporous silica particles

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Title: Conductivity of liquid lithium electrolytes with dispersed mesoporous silica particles
Authors: Sann, K.1, Roggenbuck, J.2, Krawczyk, N.1, Buschmann, H.1, Luerßen, B.1, Fröba, M.2 froeba@chemie.uni-hamburg.de, Janek, J.1 juergen.janek@phys.chemie.uni-giessen.de
Source: Electrochimica Acta. Jan2012, Vol. 60, p1-6. 6p.
Subjects: Electric conductivity, Liquid metals, Electrolytes, Lithium, Dispersion (Chemistry), Mesoporous materials, Silica, Temperature effect
Abstract: Abstract: The electrical conductivity of disperse electrolytes was systematically measured as a function of temperature (0°C to 60°C) and filler content for different types of fillers with a range of pore geometry, pore structure and specific surface area. As fillers mesoporous silicas SBA-15, MCM-41 and KIT-6 with pore ranges between 3nm and 15nm were dispersed in commercially available liquid lithium electrolytes. As electrolytes 1M of lithium hexafluorophosphate (LiPF6) in a mixture of ethylene carbonate (EC) and diethylene carbonate (DEC) at the ratio 3:7 (wt/wt) and the same solvent mixture with 0.96M lithium bis(trifluoromethanesulfon)imide (LiTFSI) were used. No conductivity enhancement could be observed, but with respect to safety aspects the highly viscous disperse pastes might be useful. The conductivity decrease varied considerably for the different fillers. [Copyright &y& Elsevier]
Copyright of Electrochimica Acta is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 70215090
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Conductivity of liquid lithium electrolytes with dispersed mesoporous silica particles
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  Data: <searchLink fieldCode="AR" term="%22Sann%2C+K%2E%22">Sann, K.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Roggenbuck%2C+J%2E%22">Roggenbuck, J.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Krawczyk%2C+N%2E%22">Krawczyk, N.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Buschmann%2C+H%2E%22">Buschmann, H.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Luerßen%2C+B%2E%22">Luerßen, B.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Fröba%2C+M%2E%22">Fröba, M.</searchLink><relatesTo>2</relatesTo><i> froeba@chemie.uni-hamburg.de</i><br /><searchLink fieldCode="AR" term="%22Janek%2C+J%2E%22">Janek, J.</searchLink><relatesTo>1</relatesTo><i> juergen.janek@phys.chemie.uni-giessen.de</i>
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  Data: <searchLink fieldCode="JN" term="%22Electrochimica+Acta%22">Electrochimica Acta</searchLink>. Jan2012, Vol. 60, p1-6. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Electric+conductivity%22">Electric conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Liquid+metals%22">Liquid metals</searchLink><br /><searchLink fieldCode="DE" term="%22Electrolytes%22">Electrolytes</searchLink><br /><searchLink fieldCode="DE" term="%22Lithium%22">Lithium</searchLink><br /><searchLink fieldCode="DE" term="%22Dispersion+%28Chemistry%29%22">Dispersion (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Mesoporous+materials%22">Mesoporous materials</searchLink><br /><searchLink fieldCode="DE" term="%22Silica%22">Silica</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+effect%22">Temperature effect</searchLink>
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  Data: Abstract: The electrical conductivity of disperse electrolytes was systematically measured as a function of temperature (0°C to 60°C) and filler content for different types of fillers with a range of pore geometry, pore structure and specific surface area. As fillers mesoporous silicas SBA-15, MCM-41 and KIT-6 with pore ranges between 3nm and 15nm were dispersed in commercially available liquid lithium electrolytes. As electrolytes 1M of lithium hexafluorophosphate (LiPF6) in a mixture of ethylene carbonate (EC) and diethylene carbonate (DEC) at the ratio 3:7 (wt/wt) and the same solvent mixture with 0.96M lithium bis(trifluoromethanesulfon)imide (LiTFSI) were used. No conductivity enhancement could be observed, but with respect to safety aspects the highly viscous disperse pastes might be useful. The conductivity decrease varied considerably for the different fillers. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Electrochimica Acta is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.electacta.2011.10.024
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      – Code: eng
        Text: English
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        PageCount: 6
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        Type: general
      – SubjectFull: Liquid metals
        Type: general
      – SubjectFull: Electrolytes
        Type: general
      – SubjectFull: Lithium
        Type: general
      – SubjectFull: Dispersion (Chemistry)
        Type: general
      – SubjectFull: Mesoporous materials
        Type: general
      – SubjectFull: Silica
        Type: general
      – SubjectFull: Temperature effect
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      – TitleFull: Conductivity of liquid lithium electrolytes with dispersed mesoporous silica particles
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              Text: Jan2012
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              Value: 60
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