화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터)
권호 46권 2호
발표분야 분자전자 부문위원회 Ⅰ,Ⅱ
제목 Polymeric Ion Conductors Based on Sono-polymerized Zwitterionic Polymers for Electrochromic Supercapacitors with Improved Shelf-Life Stability
초록 Electrochromic supercapacitors (ECSs) have been attracting continuous interest in modern electronics due to their operating simplicity and ability to visually implement stored energy levels. One challenge for practical use is suppression of the ion migration-dependent self-discharging process of ECSs. Herein, a facile and effective approach is developed for designing self-discharging retarded ECSs by employing zwitterionic (ZI) ionogels. All-in-one type ZI electrochromic (EC) gels are produced by one-pot sono-polymerization. The EC ZI gel-based ECS exhibits excellent capacitive properties in areal capacitance and coulombic efficiency. Furthermore, the outstanding self-discharging performance of EC ZI gel-based ECS is caused by slow ion migration under open-circuit conditions due to the interaction between the ZI moiety and DHV2+. Thus, we expect that this work may lead to the design strategy of smart energy storage devices.
저자 이재경, 김용민, 문홍철
소속 서울시립대
키워드 sonopolymerization; polyzwitterions; electrochromism; ionogels; electrochromic supercapacitors
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