화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터)
권호 44권 2호
발표분야 고분자가공/복합재료
제목 High stretchable and ion conducting polyacrylamide hydrogel-based polymer electrolytes containing lithium ion and silica nanoparticle functionalities
초록 Polyacrylamide (PAM) hydrogel-based SPEs combined with vinyl silica nanoparticles (VSNPs) as cross-linkers have been previously developed for the development of high stretchable and flexible SPEs. However, these SPEs have lower ionic conductivities than the liquid electrolytes. In order to overcome this problem, we functionalized the PAM hydrogel-based SPE with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) salts, allowing for the enhancement of the ionic conductivity. In this study, we systematically compared the ionic conductivities of the PAM-VSNP SPEs prepared by changing synthetic conditions of VSNP and LiTFSI contents and polymerization temperature. The incorporation of LiTFSI into the SPE not only led to an improvement in mechanical properties, but also its conductivity increased by more than 2 orders of magnitude.
저자 정효정, 최우혁
소속 부경대
키워드 silica nanoparticle; hydrogel polymer electrolyte; polyacrylamide; ion conductivity
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