Role of mixed molecular weight PEO-PVDF polymers in improving the ionic conductivity of blended solid polymer electrolytes
- Title
- Role of mixed molecular weight PEO-PVDF polymers in improving the ionic conductivity of blended solid polymer electrolytes
- Creator
- Revathy C.; Sunitha V.R.; Money B.K.; Joseph R.; Radhakrishnan S.
- Description
- Blended solid polymer electrolytes (BSPE) were prepared by mixing different molecular weight polymers PEO6 (Mw = 1 106 g/mol), PEO5 (Mw = 1 105 g/mol), and PVDF (Mw = 5.25 105 g/mol) complexed with lithium salt. Conductivity and dielectric studies at different temperatures were carried out on these BSPE systems by varying the wt% of PEO5 and PVDF with respect to PEO6, keeping the wt% of lithium salt constant. The electrical characterizations of BSPE systems have been investigated using impedance spectroscopy in the frequency range 0.1106 Hz. The conductivity data shows that inclusion of PEO5 and PVDF into the PEO6 matrix improved the overall lithium-ion dynamics in the polymer matrix. The composition, PEO6 (94 wt%)-PEO5 (3 wt%)/PVDF (3 wt%)-LiClO4, exhibited maximum conductivity of 6.44 10?4 Scm?1 at 303 K. TheDC conductivity variation with temperature of BSPE systems follows Arrhenius relation and variation of AC conductivities with frequency obeys Jonschers power law. The real and imaginary part of dielectric constant and the dielectric relaxation were also investigated. 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
- Source
- Ionics, Vol-29, No. 10, pp. 4025-4035.
- Date
- 2023-01-01
- Publisher
- Springer Science and Business Media Deutschland GmbH
- Subject
- Blend polymer electrolyte; Dielectric constant; Dielectric relaxation; Ion concentration factor; Ion hopping rate; Ionic conductivity
- Coverage
- Revathy C., Department of Electrical & Electronics Engineering, PES University, -560085, Karnataka, Bangalore, India; Sunitha V.R., Department of Sciences and Humanities, School of Engineering and Technology, Christ (Deemed to be University), -560074, Karnataka, Bangalore, India; Money B.K., Department of Sciences and Humanities, School of Engineering and Technology, Christ (Deemed to be University), -560074, Karnataka, Bangalore, India; Joseph R., Department of Electrical & Electronics Engineering, PES University, -560085, Karnataka, Bangalore, India; Radhakrishnan S., Department of Science and Humanities, PES University, -560085, Karnataka, Bangalore, India
- Rights
- Restricted Access
- Relation
- ISSN: 9477047
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Revathy C.; Sunitha V.R.; Money B.K.; Joseph R.; Radhakrishnan S., “Role of mixed molecular weight PEO-PVDF polymers in improving the ionic conductivity of blended solid polymer electrolytes,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 28, 2025, https://archives.christuniversity.in/items/show/14071.