Antoni Munar; Andrio, A.; Iserte Nebot, MR.; Compañ Moreno, V. (2011). Ionic conductivity and diffusion coefficients of lithium salt polymer electrolytes measured with dielectric spectroscopy. Journal of Non-Crystalline Solids. 357(16-17):3064-3069. https://doi.org/10.1016/j.jnoncrysol.2011.04.012
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/64223
Title:
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Ionic conductivity and diffusion coefficients of lithium salt polymer electrolytes measured with dielectric spectroscopy
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Author:
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Antoni Munar
Andrio, Andreu
Iserte Nebot, María Rosa
Compañ Moreno, Vicente
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UPV Unit:
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Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada
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Issued date:
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Abstract:
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Ionic conductivity, diffusion coefficients, mobility and ionic concentration for lithium salts dissolved in polymer electrolytes are determined by the modeling of the dielectric loss and spectra. Cation and anion diffusion ...[+]
Ionic conductivity, diffusion coefficients, mobility and ionic concentration for lithium salts dissolved in polymer electrolytes are determined by the modeling of the dielectric loss and spectra. Cation and anion diffusion coefficients are quantified using the Trukhan model depending on the assumed ratio of the cation to anion diffusion coefficients. Measurements are performed for polymer electrolytes consisting of polyethylene oxide (PEO) with dissolved LiClO 4 salts for different sample thicknesses and temperatures ranging from 5 to 105 °C, which comprises both the crystalline and amorphous phases of the composite electrolyte. A good phenomenological description of the dielectric loss spectra is obtained for both the semi-crystalline and amorphous phases. The fraction of mobile ions is estimated to vary from 0.002% at 25 °C (semi-crystalline phase) up to 0.05% at 80 °C (amorphous phase).
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Subjects:
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Ionic conductivity
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Lithium battery
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Mobility
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Polymer
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Amorphous phase
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Amorphous phasis
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Anion diffusion
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Composite electrolytes
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Dielectric loss spectra
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Diffusion Coefficients
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Ionic concentrations
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Lithium salts
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Mobile ions
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Phenomenological description
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Polymer electrolyte
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Semicrystallines
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Crystalline materials
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Dielectric devices
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Dielectric losses
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Ionic conduction
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Lithium
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Polyelectrolytes
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Polyethylene oxides
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Polymers
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Positive ions
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Salts
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Diffusion
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Copyrigths:
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Cerrado |
Source:
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Journal of Non-Crystalline Solids. (issn:
0022-3093
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DOI:
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10.1016/j.jnoncrysol.2011.04.012
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Publisher:
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Elsevier
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Publisher version:
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http://dx.doi.org/10.1016/j.jnoncrysol.2011.04.012
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Project ID:
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info:eu-repo/grantAgreement/Generalitat Valenciana//IMIDIC%2F2009%2F152/ES/DESARROLLO DE NUEVOS MATERIALES PARA BATERIAS DE LITIO/
info:eu-repo/grantAgreement/MICINN//MAT2009-14602/ES/Desarrollo, Optimizacion E Investigacion Fundamental De Celulas Electroquimicas Emisoras De Luz/
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Thanks:
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This research has been supported by the IMIDIC/2009/152 project, granted by the Generalitat Valenciana (Valencia, Spain) through the Institute for Small and Medium Industry (IMPIVA) and the European Union by FEDER funds. ...[+]
This research has been supported by the IMIDIC/2009/152 project, granted by the Generalitat Valenciana (Valencia, Spain) through the Institute for Small and Medium Industry (IMPIVA) and the European Union by FEDER funds. Dr. A. Munar acknowledges the support of the Ramon y Cajal programme08-18-463B-750, and Grant MAT2009-14602, Ministerio de Ciencia e Innovacion, Spain.
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Type:
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Artículo
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