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Updated: Jul 3, 2025
05:33
Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
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Xylose- and Nucleoside-Based Polymers via Thiol-ene Polymerization toward Sugar-Derived Solid Polymer Electrolytes
Matthew Oshinowo1,2, Marco Piccini1,2, Gabriele Kociok-Köhn3
1Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
ACS Applied Polymer Materials
|February 15, 2024
Summary
Bioderived copolymers were synthesized for solid polymer electrolytes (SPEs) for lithium-ion conduction. These advanced SPEs exhibit improved ionic conductivity and electrochemical stability, offering potential for next-generation batteries.
Area of Science:
- Polymer Chemistry
- Materials Science
- Electrochemistry
Background:
- Solid polymer electrolytes (SPEs) are crucial for safe and efficient lithium-ion batteries.
- Developing sustainable and high-performance SPEs from renewable resources is a key research area.
- Existing SPEs often face limitations in ionic conductivity, electrochemical stability, or processability.
Purpose of the Study:
- To synthesize novel solid polymer electrolytes (SPEs) using bioderived monomers for lithium-ion conduction.
- To investigate the structure-property relationships of these SPEs, focusing on ionic conductivity and electrochemical performance.
- To explore the potential of incorporating nucleoside moieties for enhanced functionality, such as self-healing and degradability.
Main Methods:
- Thiol-ene polymerization of bioderived α,ω-unsaturated diene monomers with dithiols.
- Preparation of amorphous polyesters and polyethers from xylose-based monomers and 2,2'-(ethylenedioxy)diethanethiol (EDT).
- Cross-linking using trifunctional monomers and synthesis of copolymers with nucleoside moieties.
Main Results:
- Achieved ionic conductivities up to 2.2 × 10-5 S cm-1 at 60 °C in cross-linked SPEs.
- Demonstrated electrochemical stability up to 5.08 V, an improvement over previous xylose-derived materials.
- Developed flexible, transparent, and reprocessable SPE films with ionic conductivity up to 1.5 × 10-4 S cm-1, exhibiting hydrolytic degradability and self-healing potential.
Conclusions:
- Bioderived copolymers synthesized via thiol-ene polymerization show promise as solid polymer electrolytes for lithium-ion batteries.
- The incorporation of nucleoside moieties enhances SPE properties, including ionic conductivity, degradability, and self-healing capabilities.
- These materials represent a significant advancement in the development of sustainable and high-performance energy storage solutions.
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