| Autor: |
Dharmaraj, Vasantan Rasupillai, Chung, Ren-Jei, Arularasu, M.V., Rajendran, T.V., Kaviyarasu, K. |
| Zdroj: |
Journal of the Australian Ceramic Society; 20230101, Issue: Preprints p1-11, 11p |
| Abstrakt: |
High-performance solid polymer electrolytes are promising candidates for lithium-ion batteries with enhanced prolonged service life, increased lifetime, and improved safety for grid storage and electric vehicles. Herein, we present a low-cost conductive supramolecular polymer composite comprising UPysynthon, polyethylene glycol with LiClO4salt, and CeO2(UPy-PEG-CeO2) designed and fabricated by dispersion method, which includes altering compositions. The supramolecular lithium-ion conductor utilizes UPy and PEG functionalized CeO2in the polymer matrix containing UPy units. The prepared electrolyte membranes form a supramolecular network with the UPy polymer on CeO2via the quadruple hydrogen bonding. The supramolecular interactions were confirmed by FT-IR and NMR spectroscopy. The surface morphology of UPy-PEG-CeO2reduces the agglomeration and uniformly disperses, ultimately improving the ionic conductance. The suprmolecular polymer (1):LiClO4(Li)(0.95):nano CeO2(0.05) (1:0.95:0.05) solid electrolyte shown superior lithium-ion transference number. Consequently, the supramolecular polymers:LiClO4(Li):CeO2in 1:0.95:0.05 ratio exhibit enhanced ionic conductivity of 4.03×10−5S cm−1at room temperature. Furthermore, the solid polymer electrolyte thermal stability was confirmed by DSC studies. |
| Databáze: |
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