화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터)
권호 39권 1호
발표분야 기능성 고분자
제목 Cross-Linkable Polymers Containing Poly(ethylene glycol) and Cardanol Moieties for Solid Polymer Electrolyte in Lithium Ion Battery Applications
초록 A series of copolymers (PHP) comprising of poly(ethylene glycol) methyl ether methacrylate (PEGMA) and 2-hydroxy-3-cardanylpropyl methacrylate (HCPM) were prepared via free radical polymerization for applications to solid polymer electrolytes (SPE) in lithium secondary batteries. HCPM was synthesized from the reaction between cardanol and glycidyl methacrylate (GMA). Dimensionally-stable free-standing SPE films were obtained mixing PHP, lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), and 2-hydroxy-2-methyl-1-phenyl-1-propanone (HMPP) as a photoinitiator followed by UV curing. As the content of HCPM moieties decreased, the ionic conductivity of the electrolyte increased due to higher lithium salt concentration and enhanced chain mobility. The maximum ionic conductivity value of the PHP containing 8 mol % of HCPM was 2.6 X 10-5 S/cm at 30 °C and 2.5 X 10-4 S/cm at 60 °C.
저자 백지훈1, 김동균1, 심지민1, 이진홍2, 최용석1, 이종찬1
소속 1서울대, 2한국과학기술(연)
키워드 solid polymer electrolyte; cardanol; copolymer; lithium battery
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