화학공학소재연구정보센터
HWAHAK KONGHAK, Vol.35, No.5, 732-737, October, 1997
전 바나듐 레독스-흐름 2차전지용 격막에 관한 연구
Studies on Separator for All-Vanadium Redox-Flow Secondary Battery
초록
전 바나듐계 레독스-흐름전지용 격막으로 폴리에틸렌 대칭막과 비대칭막을 사용하여 기상 중에서 클로로술폰화반응으로 제막하였다. 제막된 대칭막의 2 M KCl 수용액에서의 막저항은 반응시간 120분의 막에서 0.5 Ω·㎠이었고 비대칭막의 경우 1.0 Ω·㎠까지 감소하였다. 그리고 제조한 막을 레독스-흐름 전지의 격막으로 사용하여 충방전시 전기저항을 측정한 결과 대칭막이 비대칭막보다 낮은 전기저항을 나타내었고, 산성의 바나듐수용액에 침적하여 측정한 내구성은 대칭막과 비대칭막의 경우 각각 약 3개월 정도의 비슷한 수명을 나타내었다.
Chlorosulfonated homogeneous and asymmetric membranes were tested as separator for the all vanadium redox-flow battery. The membranes were prepared by chlorosulfonation of the polyethylene film in vapor phase. In the case of a homogeneous membrane, area resistivity of 0.5 Ω·cm2 in 2M KCl aqueous solution was obtained at chlorosulfonation time of 120 min. In the case of an asymmetric membrane, area resistivity 1.0 Ω·cm2 in 2M KCl aquous solution was reached at chlorosulfonation time of 120 min. The electrical resistance of membranes in the redox-flow battery were also measured. The electrical resistance of homogeneous membrane has a lower value than that of an asymmetric membrane. The durability of chlorosulfonated homogeneous and asymmetric membrane which is determined by the oxidation degradation in acidic vanadium solution, was 3 months, respectively.
  1. Thaller LH, "ElectricallyRechargeable Redox Flow Cells," NASA TM X-71540, NASA, Dept. of Energy, U.S. (1974)
  2. NASA: "Redox Flow Cell Development and Demonstration Project," NASA TM-79067, NASA, Dept. of Energy, U.S. (1977)
  3. Thaller LH, "Redox Flow Cell Energy Storage Systems," NASA TM-79143, NASA, Dept. of Energy, U.S. (1979)
  4. Hagedorn NH, Thaller LH, "Redox Storage System for Solar Applications," NASA TM-81464, NASA, Dept. of Energy, U.S. (1980)
  5. Lacey RE, Cower DR, "Development of Anion Selective Membranes," NASA CR-134932, NASA, Dept. of Energy, U.S. (1975)
  6. Alexander SS, Hogdon RB, Wsite WA, "Anion Permselective Membranes," NASA CR-159599, NASA, Dept. of Energy, U.S. (1979)
  7. Prokopius PR, "Models for Calculating Electrolytic Shunt Path Losses in Large Electrochemical Energy Conversion Systems," NASA TMX-3359, NASA, Dept. of Energy, U.S. (1975)
  8. Giner J, Cahill K, "Advanced Screening of Electrode Couples," NASA CR-159738, NASA, Dept. of Energy, U.S. (1980)
  9. Reid MA, Gahn RF, Ling JS, Charleston J, "Preparation and Characterization of Electrodes for the NASA Redox Storage System," NASA TM-82702, NASA, Dept. of Energy, U.S. (1980)
  10. Hagedorn NH, "NASA Redox Project Status Summary," NASA TM-83401, NASA, Dept. of Energy, U.S. (1982)
  11. Johnson DA, "Cheical and Electrochemical Behavior of the Cr(III)/Cr(II) Half Cell in the NASA Redox Energy Storage System," NASA TM-82913, NASA, Dept. of Energy, U.S. (1982)
  12. Stalnaker DK, "An Electrochemical Rebalance Cell for Redox Systems," NASA TM-83363, NASA, Dept. of Energy, U.S. (1983)
  13. Gahn RF, Hagedon HH, Johnson JA, "Cycling Performance of the Iron-Chromium Redox Energy Storage System," NASA TM-87034, NASA, Dept. of Energy, U.S. (1985)
  14. Tasai H, Horigome T, Nozaki K, Nedishi A, Wada Y, The 31th Battery Symposium, Japan, 301 (1990)
  15. Sum E, Skyllas-Kazacos M, J. Power Sources, 15, 179 (1985) 
  16. Sum E, Rychick M, Skyllas-Kazacos M, J. Power Sources, 16, 85 (1985) 
  17. Rychick M, Skyllas-Kazacos M, J. Power Sources, 19, 45 (1987) 
  18. Skyllas-Kazacos M, Grossmith F, J. Electrochem. Soc., 134, 2950 (1987) 
  19. Rychick M, Skyllas-Kazacos M, J. Power Sources, 22, 59 (1988) 
  20. Kazacos M, Skyllas-Kazacos M, J. Electrochem. Soc., 136, 2759 (1989) 
  21. deKorosy F, DeCheMa-Monographien, 47, 477 (1962)
  22. Bikson B, Grodzinski JJ, Polymer, 20, 215 (1979) 
  23. Krillov AN, Egunob AB, Koropev BM, Plast. Massy, 8, 54 (1977)
  24. Ashahi Chemical Co.: HIPORE Catalogue (1983)
  25. 이용욱, 김용렬, 강현춘, 신석재, 이병철, 강안수, 멤브레인, 5(3), 109 (1995)