Ionic Conductivity of Hybrid Composite Solid Polymer Electrolytes of PEO<sub><i>n</i></sub>LiClO<sub>4</sub>-Cubic Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films

Ionic Conductivity of Hybrid Composite Solid Polymer Electrolytes of PEO<sub><i>n</i></sub>LiClO<sub>4</sub>-Cubic Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films

Ionic conductivity of the polyethylene oxide-LiClO<sub>4</sub> (PEO<i><sub>n</sub></i>LiClO<sub>4</sub>) solid polymer electrolyte (SPE) films with an EO:Li ratio (<i>n</i>) of 10, 12, 15, as well as the hybrid composite solid polymer elect...

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Autores principales: Parisa Bashiri, T. Prasada Rao, Gholam-Abbas Nazri, Ratna Naik, Vaman M. Naik
Formato: article
Lenguaje:EN
Publicado: MDPI AG 2021
Materias:
ionic conductivity
cubic Li<sub>2</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub>
composite solid polymer electrolytes
Chemical technology
TP1-1185
Chemistry
QD1-999
Acceso en línea:https://doaj.org/article/d0f79ecab63f43c4b092d0a0b1bcd8e8
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spelling oai:doaj.org-article:d0f79ecab63f43c4b092d0a0b1bcd8e82021-11-25T18:52:15ZIonic Conductivity of Hybrid Composite Solid Polymer Electrolytes of PEO<sub><i>n</i></sub>LiClO<sub>4</sub>-Cubic Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films10.3390/pr91120902227-9717https://doaj.org/article/d0f79ecab63f43c4b092d0a0b1bcd8e82021-11-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/2090https://doaj.org/toc/2227-9717Ionic conductivity of the polyethylene oxide-LiClO<sub>4</sub> (PEO<i><sub>n</sub></i>LiClO<sub>4</sub>) solid polymer electrolyte (SPE) films with an EO:Li ratio (<i>n</i>) of 10, 12, 15, as well as the hybrid composite solid polymer electrolyte (CSPE) films of PEO<i><sub>n</sub></i>LiClO<sub>4</sub> containing 50 wt% of cubic-Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> (LLZO) sub-micron sized particles, have been studied by varying Li-salt content in the films. The complex AC dielectric permittivity and conductivity data obtained from electrical impedance measurements were fitted using a generalized power-law, including the effects of electrode polarization applied at low AC frequencies to obtain various relaxation times. In addition to increased mechanical and thermal robustness, the CSPE films show higher values of ionic conductivity, >10<sup>−4</sup> S/cm at room temperature compared to those of SPE films with <i>n</i> = 12 and 15. On the contrary, the ionic conductivity of CSPE with <i>n</i> = 10 decreases by a factor of three compared to the corresponding SPE film due to increased polymer structural reorientation and Li-ion pairing effects. The Vogel–Tammann–Fulcher behavior of the temperature-dependent conductivity data indicates a close correlation between the ionic conductivity and polymer segmental relaxation. The PEO<sub>12</sub>LiClO<sub>4</sub>-LLZO film shows the lowest activation energy of ~0.05 eV.Parisa BashiriT. Prasada RaoGholam-Abbas NazriRatna NaikVaman M. NaikMDPI AGarticleionic conductivitycubic Li<sub>2</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub>composite solid polymer electrolytesChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 2090, p 2090 (2021)
institution DOAJ
collection DOAJ
language EN
topic ionic conductivity
cubic Li<sub>2</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub>
composite solid polymer electrolytes
Chemical technology
TP1-1185
Chemistry
QD1-999
spellingShingle ionic conductivity
cubic Li<sub>2</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub>
composite solid polymer electrolytes
Chemical technology
TP1-1185
Chemistry
QD1-999
Parisa Bashiri
T. Prasada Rao
Gholam-Abbas Nazri
Ratna Naik
Vaman M. Naik
Ionic Conductivity of Hybrid Composite Solid Polymer Electrolytes of PEO<sub><i>n</i></sub>LiClO<sub>4</sub>-Cubic Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films
description Ionic conductivity of the polyethylene oxide-LiClO<sub>4</sub> (PEO<i><sub>n</sub></i>LiClO<sub>4</sub>) solid polymer electrolyte (SPE) films with an EO:Li ratio (<i>n</i>) of 10, 12, 15, as well as the hybrid composite solid polymer electrolyte (CSPE) films of PEO<i><sub>n</sub></i>LiClO<sub>4</sub> containing 50 wt% of cubic-Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> (LLZO) sub-micron sized particles, have been studied by varying Li-salt content in the films. The complex AC dielectric permittivity and conductivity data obtained from electrical impedance measurements were fitted using a generalized power-law, including the effects of electrode polarization applied at low AC frequencies to obtain various relaxation times. In addition to increased mechanical and thermal robustness, the CSPE films show higher values of ionic conductivity, >10<sup>−4</sup> S/cm at room temperature compared to those of SPE films with <i>n</i> = 12 and 15. On the contrary, the ionic conductivity of CSPE with <i>n</i> = 10 decreases by a factor of three compared to the corresponding SPE film due to increased polymer structural reorientation and Li-ion pairing effects. The Vogel–Tammann–Fulcher behavior of the temperature-dependent conductivity data indicates a close correlation between the ionic conductivity and polymer segmental relaxation. The PEO<sub>12</sub>LiClO<sub>4</sub>-LLZO film shows the lowest activation energy of ~0.05 eV.
format article
author Parisa Bashiri
T. Prasada Rao
Gholam-Abbas Nazri
Ratna Naik
Vaman M. Naik
author_facet Parisa Bashiri
T. Prasada Rao
Gholam-Abbas Nazri
Ratna Naik
Vaman M. Naik
author_sort Parisa Bashiri
title Ionic Conductivity of Hybrid Composite Solid Polymer Electrolytes of PEO<sub><i>n</i></sub>LiClO<sub>4</sub>-Cubic Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films
title_short Ionic Conductivity of Hybrid Composite Solid Polymer Electrolytes of PEO<sub><i>n</i></sub>LiClO<sub>4</sub>-Cubic Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films
title_full Ionic Conductivity of Hybrid Composite Solid Polymer Electrolytes of PEO<sub><i>n</i></sub>LiClO<sub>4</sub>-Cubic Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films
title_fullStr Ionic Conductivity of Hybrid Composite Solid Polymer Electrolytes of PEO<sub><i>n</i></sub>LiClO<sub>4</sub>-Cubic Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films
title_full_unstemmed Ionic Conductivity of Hybrid Composite Solid Polymer Electrolytes of PEO<sub><i>n</i></sub>LiClO<sub>4</sub>-Cubic Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films
title_sort ionic conductivity of hybrid composite solid polymer electrolytes of peo<sub><i>n</i></sub>liclo<sub>4</sub>-cubic li<sub>7</sub>la<sub>3</sub>zr<sub>2</sub>o<sub>12</sub> films
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/d0f79ecab63f43c4b092d0a0b1bcd8e8
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AT gholamabbasnazri ionicconductivityofhybridcompositesolidpolymerelectrolytesofpeosubinisubliclosub4subcubiclisub7sublasub3subzrsub2subosub12subfilms
AT ratnanaik ionicconductivityofhybridcompositesolidpolymerelectrolytesofpeosubinisubliclosub4subcubiclisub7sublasub3subzrsub2subosub12subfilms
AT vamanmnaik ionicconductivityofhybridcompositesolidpolymerelectrolytesofpeosubinisubliclosub4subcubiclisub7sublasub3subzrsub2subosub12subfilms
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