연료극 지지체식 원통형 고체산화물 연료전지의 성능 특성

송락현; 송근숙; Rak-Hyun Song; Keun-Suk Song

Korean Journal of Materials Research, Vol.14, No.5, 368-373, May, 2004

DOI10.3740/MRSK.2004.14.5.368 Export Citation

연료극 지지체식 원통형 고체산화물 연료전지의 성능 특성

Performance Characteristics of Anode-Supported Tubular Solid Oxide Fuel Cell

송락현^†, 송근숙

한국에너지기술연구원 수소연료전지연구부

Rak-Hyun Song^†, and Keun-Suk Song

Hydrogen and Fuel Cell Research Department, Korea Institute of Energy Research, Korea

E-mail:

To improve the conventional cathode-supported tubular solid oxide fuel cell (SOFC) from the viewpoint of low cell power density, expensive fabrication process and high operation temperature, the anode-supported tubular solid oxide fuel cell was investigated. The anode tube of Ni-8mol% Y 2 O 3 -stabilized ZrO 2 (8YSZ) was manufactured by extrusion process, and, the electrolyte of 8YSZ and the multi-layered cathode of LaSrMnO 3 (LSM)ILSM-YSZ composite/ LaSrCoFeO 3 were coated on the surface of the anode tube by slurry dip coating process, subsequently. Their cell performances were examined under gases of humidified hydrogen with 3% water and air. In the thermal cycle condition of heating and cooling rates with 3.33 ? C /min, the anode-supported tubular cell showed an excellent resistance as compared with the electrolyte-supported planar cell. The optimum hydrogen flow rate was evaluated and the air preheating increased the cell performance due to the increased gas temperature inside the cell. In long-term stability test, the single cell indicated a stable performance of 300 mA/ cm 2 at 0.85 V for 255 hr.

Keywords:anode-supported tubular solid oxide fuel cell;preheating effect;thermal cycle;long-term stability

[References]

Minh NQ, Takehiko T, Science and Technology of Ceramic Fuel Cell, p.233, Elsevier Science, Amsterdam, (1995) (1995)
Singhal SC, in Proceedings of the 6th International Symposium on Solid Oxide Fuel Cells (Honolulu, Hawai, October 1999), eds. U. Stimming, S. C. Singhal and H. Tagawa (Electrochemical Society, Inc., 1999) p.39 (1999)
Diethelm R, Schmidt M, IBID, p.60
Fuel Cell Handbook(DOE/NETL-2002/l179), 6th ed., EG&G Technical Services, Inc., Science Application International Cooperation, (2002) (2002)
Tompsett GA, Finnerty C, Kendall K, Alston T, Sammes NM, J. Power Sources, 86, 376 (2000)
Winkler W, Lorenz H, J. Power Sources, 105(2), 222 (2002)
Song RH, Horita T, Sakai N, Kawada T, Yokokawa H, Dokiya M, Denki Kagaku, 64(1), 614 (1996)
Song RH, Shin DR, Kim EY, Yokokawa H, Patent US, 6,436,565 B1, Aug. 20 (2002) (2002)
Song KS, Song RH, Ihm YE, Korean J. Mater. Res., 12(9), 691 (2002)
Song RH, Kim EY, Shin DR, J. New Materials for Electrochemical Systems, 2(2), 137 (1999)

[1] Minh NQ, Takehiko T, Science and Technology of Ceramic Fuel Cell, p.233, Elsevier Science, Amsterdam, (1995) (1995)

[2] Singhal SC, in Proceedings of the 6th International Symposium on Solid Oxide Fuel Cells (Honolulu, Hawai, October 1999), eds. U. Stimming, S. C. Singhal and H. Tagawa (Electrochemical Society, Inc., 1999) p.39 (1999)

[3] Diethelm R, Schmidt M, IBID, p.60

[4] Fuel Cell Handbook(DOE/NETL-2002/l179), 6th ed., EG&G Technical Services, Inc., Science Application International Cooperation, (2002) (2002)

[5] Tompsett GA, Finnerty C, Kendall K, Alston T, Sammes NM, J. Power Sources, 86, 376 (2000)

[6] Winkler W, Lorenz H, J. Power Sources, 105(2), 222 (2002)

[7] Song RH, Horita T, Sakai N, Kawada T, Yokokawa H, Dokiya M, Denki Kagaku, 64(1), 614 (1996)

[8] Song RH, Shin DR, Kim EY, Yokokawa H, Patent US, 6,436,565 B1, Aug. 20 (2002) (2002)

[9] Song KS, Song RH, Ihm YE, Korean J. Mater. Res., 12(9), 691 (2002)

[10] Song RH, Kim EY, Shin DR, J. New Materials for Electrochemical Systems, 2(2), 137 (1999)