방사선산업학회지 (Journal of Radiation Industry)

한국방사선산업학회 (Korean Society of Radiation Industry)
권호 표지

전자선을 이용한 PVDF-HFP/Silylated Al2O3가 코팅된 리튬 이차 전지용 폴리에틸렌 분리막의 전기화학적 특성 연구

Electrochemical Study on PVDF-HFP/Silylated Al2O3-coated PE Separators using the Electron Beam Irradiation for Lithium Secondary Battery

  • 손준용 (한국원자력연구원 정읍방사선과학연구소) ;
  • 신준화 (한국원자력연구원 정읍방사선과학연구소) ;
  • 노영창 (한국원자력연구원 정읍방사선과학연구소)
  • Sohn, Joon-Yong (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Shin, Junhwa (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Nho, Young-Chang (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
  • 투고 : 2010.11.22
  • 심사 : 2010.11.29
  • 발행 : 2010.12.30

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초록

PVDF-HFP (binder)/silylated alumina (inorganic particle)-coated PE (polyethylene) separators were with various compositions of binder and inorganic particle were prepared by a dip-coating process with humidity control (R.H. 25% and 50%) using electron beam irradiation. The morphology of the coated PVDF-$HFP/Al_2O_3$ layer with various compositions of PVDF-HFP and $Al_2O_3$, and humidity condition was found to be an important factor in determining ionic conductivity of the prepared separators. The PVDF-$HFP/Al_2O_3$ (5/5)-coated PE separator prepared at R.H. 50% followed by electron beam irradiation at 200 kGy was applied for lithium-ion polymer battery and the cell test results showed improved high-rate discharge performance and better cyclic stability compared to the cells with the bare PE and the PVDF-HFP-coated PE separators.

키워드

과제정보

연구 과제 주관 기관 : 교육과학기술부