화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2017년 가을 (10/25 ~ 10/27, 대전컨벤션센터)
권호 23권 2호, p.1449
발표분야 고분자
제목 Ionic Conductivity of Amphiphilic SBS-g-POEM Copolymer Electrolytes for Solid-state Flexible Supercapacitors
초록 An amphiphilic block-graft copolymer, i.e., poly(styrene-b-butadiene-b-styrene)-g-poly(oxyethylene methacrylate) (SBS-g-POEM) was synthesized via facile free-radical polymerization. It exhibited the good ion conducting property and mechanical strength resulting from SBS and POEM. By controlling the ratio of SBS to POEM and POEM chain length, the microphase-separated structure and property of copolymer were optimized. The selective-interaction between lithium salt and microphase-separated POEM contributed to the high ionic conductivity. The solid-state electrolyte consisted of SBS-g-POEM, LiTFSI and PC exhibited excellent supercapacitive performance, which was superior to that of conventional PVA/H3PO4 electrolyte. The highly ion conductive electrolyte based on SBS-g-POEM copolymer has great potential to apply other energy device like Li-ion batteries
저자 김진규1, 임정엽1, 박철훈1, 김종학1, 안준모2
소속 1연세대, 2국방과학(연)
키워드 고분자합성; 고분자전자재료
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