| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
High Ion Conducting Polymer Electrolytes based on Supramolecular Self-assembled PEO-derivatives |
| 초록 |
There is a significant attention to the development of solid polymer electrolytes towards next-generation lithium ion batteries to alleviate the safety concerns in current lithium batteries. Among a range of polymer electrolytes, poly(ethylene oxide) (PEO) and its derivatives have been widely investigated to date on account of the intrinsically high Li+ conductivity of PEO chains. A major issue remained unsolved in PEO-based systems is their poor mechanical properties, which can potentially lead to fatal flaws in dendritic shorts. In this study, a set of PEO-derivatives were synthesized by coupling of amine-containing moieties and PEO chains. A unique supramolecular self-assembly nature among amine groups provided mechanical integrity even at high temperature up to 120 ℃ while phase-separated PEO domains demonstrated efficient Li+ transport properties. The correlation between ionic conductivity and self-assembled morphologies was explored by combining SAXS and impedance spectroscopy. |
| 저자 |
전홍찬, 박문정
|
| 소속 |
포항공과대 |
| 키워드 |
lithium polymer battery; polymer electrolyte
|
| E-Mail |
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