Studies on the Secondary Battery Application of the Surface Fluorinated Microporous PE Separator Membranes

표면 불소화된 미세다공성 PE 격리막의 이차전지 적용을 위한 연구

  • Byun, Hong-Sik (Department of Chemical System Engineering, Keimyung University) ;
  • Kim, Dae-Hoon (Department of Chemical Engineering, Hannam University) ;
  • Cho, Hyun-Il (Department of Chemical Engineering, Hannam University) ;
  • Lee, Byung-Seong (Department of Chemical Engineering, Hannam University) ;
  • Hong, Byung-Pyo (Department of Chemical System Engineering, Keimyung University) ;
  • Lee, Sang-Yun (Research Institute of Gas Analytical Science) ;
  • Nam, Sang-Yong (School of Materials Science and Engineering, Engineering Research Institute, i-Cube Center, Engineering Research Institute, Gyeongsang National University) ;
  • Seo, Myung-Su (Special Battery Division Research Institute R&D Team, Bexel Corporation) ;
  • Rhim, Ji-Won (Department of Chemical Engineering, Hannam University)
  • 변홍식 (계명대학교 화학시스템공학과) ;
  • 김대훈 (한남대학교 생명.나노 과학대학 나노생명화학공학과) ;
  • 조현일 (한남대학교 생명.나노 과학대학 나노생명화학공학과) ;
  • 이병성 (한남대학교 생명.나노 과학대학 나노생명화학공학과) ;
  • 홍병표 (계명대학교 화학시스템공학과) ;
  • 이상윤 ((주)리가스 가스분석과학연구소) ;
  • 남상용 (경상대학교 나노신소재공학부, 공학연구원, 아이큐브사업단) ;
  • 서명수 ((주)벡셀 특수전지사업부 기술연구소 연구개발팅) ;
  • 임지원 (한남대학교 생명.나노 과학대학 나노생명화학공학과)
  • Published : 2008.03.30

Abstract

In this research, the research for enhancing the stability at the mechanical strength and thermal stability and high power through the Direct Fluorination of the Polyethylene (PE, Asahi) for secondary battery was conducted. The surface of according to the fluorine gas exposure time and constructional change were observed through the scanning electron microscope image, and the contact angle. The mechanical property was confirmed through the tensile strength and surface hydrophilic property experiment. Charge and discharge experiment, the lifetime property, and the overcharge test were performed in order to confirm the electrochemical characteristic of produced and we confirmed at the high power that the stability about a temperature was improved.

본 연구에서는 Polyethylene (PE, Asahi) 이차전지용 막의 표면불소화를 통해 기계적 강도 및 열적 안정성과 고출력에서의 안정성을 높이기 위한 연구를 실시하였다. 전자주사현미경(scanning electron microscope, SEM), 접촉각(contact angle)을 통하여 불소가스 노출시간에 따른 막의 표면과 구조의 변화를 관찰하고, 인장강도와 표면 친수성 실험을 통하여 막의 기계적 물성을 확인하였다. 제조된 막의 전기화학적 특성을 확인하기 위하여 충/방전 실험, 수명특성. 고율방전시험을 실시하여 고출력에서 온도에 대한 안정성이 향상되었음을 확인하였다.

Keywords

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