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Effect of the Poly(ethylene glycol) Diacrylate (PEGDA) Molecular Weight on Ionic Conductivities in Solvent-Free Photo-Cross-Linked Solid Polymer Electrolytes

Lookup NU author(s): Dr Manjit GrewalORCiD

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Abstract

To obtain safe, high-performance Li-ion batteries, the development of electrolytes with high impact resistance and high ionic conductivity is important. Ionic conductivity at room temperature has been improved by using poly(ethylene glycol) (PEG) diacrylate (PEGDA) to form three-dimensional (3D) networks and solvated ionic liquids. However, the effects of the molecular weight of PEGDA on ionic conductivities and the relationship between ionic conductivities and network structures of cross-linked polymer electrolytes have not been discussed in detail. In this study, the dependence of the ionic conductivity of photo-cross-linked PEG solid electrolytes on the molecular weight of the PEGDA was evaluated. X-ray scattering (XRS) gave detailed information about the dimensions of 3D networks formed by the photo-cross-linking of PEGDA, and the effects of the network structures on the ionic conductivities were discussed.

Publication metadata

Author(s): Grewal MS, Ishibashi K, Hara M, Ishizaki Y, Nagano S, Yabu H

Publication type: Article

Publication status: Published

Journal: Langmuir

Year: 2023

Volume: 39

Issue: 29

Pages: 10209-10215

Print publication date: 25/07/2023

Online publication date: 12/07/2023

Acceptance date: 16/06/2023

ISSN (print): 0743-7463

ISSN (electronic): 1520-5827

Publisher: American Chemical Society

URL: https://doi.org/10.1021/acs.langmuir.3c01146

DOI: 10.1021/acs.langmuir.3c01146

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