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Determination of charge carrier transport properties of gellan gum–lithium triflate solid polymer electrolyte from vibrational spectroscopy

Mobility and number density of charge carriers are important parameters that influence the electrolyte conductivity. Therefore, knowing these parameters quantitatively is of great significance. In this work, solid polymer electrolytes have been prepared by solution casting technique using gellan gum...

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Main Author: Mohd Noor, Ikhwan Syafiq
Format: Article
Language:English
Published: SAGE Publications 2020
Online Access:http://psasir.upm.edu.my/id/eprint/88401/1/ABSTRACT.pdf
http://psasir.upm.edu.my/id/eprint/88401/
https://journals.sagepub.com/doi/abs/10.1177/0954008319890016
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spelling my.upm.eprints.884012021-12-27T04:09:47Z http://psasir.upm.edu.my/id/eprint/88401/ Determination of charge carrier transport properties of gellan gum–lithium triflate solid polymer electrolyte from vibrational spectroscopy Mohd Noor, Ikhwan Syafiq Mobility and number density of charge carriers are important parameters that influence the electrolyte conductivity. Therefore, knowing these parameters quantitatively is of great significance. In this work, solid polymer electrolytes have been prepared by solution casting technique using gellan gum complexes with lithium triflate (LiTf). The conductivity of the electrolyte increases from 3.35 108 S cm1 (electrolyte with 10 wt% LiTf) to 5.38 104 S cm1 (electrolyte with 40 wt% LiTf). The increase in conductivity was attributed to the increase in mobility and number density of charge carriers in the electrolyte from 6.63 109 cm2 V1 s 1 to 1.25 106 cm2 V1 s 1 and from 4.00 1020 cm3 to 2.68 1021 cm3, respectively. The electrolyte conductivity is seen to decrease as LiTf salts were added more than 40 wt% concentration due to the decrease of charge carrier mobility to 8.58 107 cm2 V1 s1. The variation of conductivity obtained in this work is dominantly influenced by the mobility of charge carriers in the electrolyte as proven from the Fourier transform infrared approach. SAGE Publications 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/88401/1/ABSTRACT.pdf Mohd Noor, Ikhwan Syafiq (2020) Determination of charge carrier transport properties of gellan gum–lithium triflate solid polymer electrolyte from vibrational spectroscopy. High Performance Polymers, 32 (2). 168 - 174. ISSN 0954-0083; ESSN: 1361-6412 https://journals.sagepub.com/doi/abs/10.1177/0954008319890016 10.1177/0954008319890016
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Mobility and number density of charge carriers are important parameters that influence the electrolyte conductivity. Therefore, knowing these parameters quantitatively is of great significance. In this work, solid polymer electrolytes have been prepared by solution casting technique using gellan gum complexes with lithium triflate (LiTf). The conductivity of the electrolyte increases from 3.35 108 S cm1 (electrolyte with 10 wt% LiTf) to 5.38 104 S cm1 (electrolyte with 40 wt% LiTf). The increase in conductivity was attributed to the increase in mobility and number density of charge carriers in the electrolyte from 6.63 109 cm2 V1 s 1 to 1.25 106 cm2 V1 s 1 and from 4.00 1020 cm3 to 2.68 1021 cm3, respectively. The electrolyte conductivity is seen to decrease as LiTf salts were added more than 40 wt% concentration due to the decrease of charge carrier mobility to 8.58 107 cm2 V1 s1. The variation of conductivity obtained in this work is dominantly influenced by the mobility of charge carriers in the electrolyte as proven from the Fourier transform infrared approach.
format Article
author Mohd Noor, Ikhwan Syafiq
spellingShingle Mohd Noor, Ikhwan Syafiq
Determination of charge carrier transport properties of gellan gum–lithium triflate solid polymer electrolyte from vibrational spectroscopy
author_facet Mohd Noor, Ikhwan Syafiq
author_sort Mohd Noor, Ikhwan Syafiq
title Determination of charge carrier transport properties of gellan gum–lithium triflate solid polymer electrolyte from vibrational spectroscopy
title_short Determination of charge carrier transport properties of gellan gum–lithium triflate solid polymer electrolyte from vibrational spectroscopy
title_full Determination of charge carrier transport properties of gellan gum–lithium triflate solid polymer electrolyte from vibrational spectroscopy
title_fullStr Determination of charge carrier transport properties of gellan gum–lithium triflate solid polymer electrolyte from vibrational spectroscopy
title_full_unstemmed Determination of charge carrier transport properties of gellan gum–lithium triflate solid polymer electrolyte from vibrational spectroscopy
title_sort determination of charge carrier transport properties of gellan gum–lithium triflate solid polymer electrolyte from vibrational spectroscopy
publisher SAGE Publications
publishDate 2020
url http://psasir.upm.edu.my/id/eprint/88401/1/ABSTRACT.pdf
http://psasir.upm.edu.my/id/eprint/88401/
https://journals.sagepub.com/doi/abs/10.1177/0954008319890016
_version_ 1724075505995481088
score 13.211869

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