期刊
MACROMOLECULAR CHEMISTRY AND PHYSICS
卷 212, 期 20, 页码 2217-2223出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.201100248
关键词
electrochemistry; energy storage; gels; glass transitions; mechanical properties
资金
- Ministry of Education, Science and Technology of Korea [2010K001090]
A facile approach to fabricate a self-standing GPE for flexible lithium-ion batteries is demonstrated using a UV-cured trivalent/monovalent acrylate polymer matrix and a liquid electrolyte. The polymer matrix is successfully synthesized with the co-presence of the liquid electrolyte by UV polymerization of ETPTA, which has trivalent vinyl groups, and EGMEA, which contains monovalent vinyl groups, with the ETPTA/EGMEA ratio fixed at 90/10 (wt%/wt%). The ETPTA/EGMEA matrix shows a lower T-g than the ETPTA matrix alone, which helps improve the mechanical flexibility and ionic transport of the resulting GPE. These features of the ETPTA/EGMEA-based GPE, together with its superior interfacial compatibility towards electrodes, play crucial roles in obtaining a better cell performance compared to the ETPTA-based GPE.
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