UV-polymerized composite ionogels for Li-organic batteries
(2025) Electrochimica Acta — Vol. 543, p. 147540 (2025)
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- Authors
Simsek, Öykü 
Schubert, Ulrich S.
- Abstract
- n this work, we report novel ionogels produced via UV-induced free radical polymerization for lithium-organic cells. Before UV-polymerization for 75 min, the methacrylate- and methacrylamide-based monomers were mixed with a lithium salt-ionic liquid mixture and a photo-initiator. The thermal and electrochemical properties of these highly ionically conductive ionogels (0.9 mS cm-1 at 20 °C) were improved with the incorporation of Al2O3 particles. These composite ionogels show a significantly higher ionic conductivity (1.7 mS cm-1 at 20 °C) and much lower overpotential in addition to a thinner and more even SEI. Moreover, they increased the cycling performance when utilized as electrolyte and separator in Li//PTMA cells.
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Citations
Simsek, Ö., Wan, M., Zimmer, P., Alvarez Moises, I., Muench, S., Gohy, J.-F., Bresser, D., & Schubert, U. S. (2025). UV-polymerized composite ionogels for Li-organic batteries. Electrochimica Acta, 543, 147540. https://doi.org/10.1016/j.electacta.2025.147540 (Original work published 2025)