Journal
SOLID STATE IONICS
Volume 262, Issue -, Pages 782-784Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2013.09.026
Keywords
Polymer electrolytes; Decoupling; Walden plot; Superionic
Categories
Funding
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1104824] Funding Source: National Science Foundation
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Using a modified Walden plot analysis, we demonstrate that polyether-based solid electrolytes have intrinsic limitations for ionic transport at ambient and low temperatures, due to strongly coupled segmental and ion dynamics. On the other hand, rigid polymers can exhibit ionic conductivity that is highly decoupled from segmental relaxation, thus providing a significant advantage over traditional polyether electrolytes. Our analysis emphasizes that decoupling of ionic transport from segmental dynamics is the key for macromolecular design of superionic polymers. (C) 2013 Elsevier B.V. All rights reserved.
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