공소결법에 의해 제조된 지지체식 평판형 고체산화물 연료전지 성능 특성

송락현; Rak-Hyun Song

Korean Journal of Materials Research, Vol.13, No.3, 160-168, March, 2003

DOI10.3740/MRSK.2003.13.3.160 Export Citation

공소결법에 의해 제조된 지지체식 평판형 고체산화물 연료전지 성능 특성

Fabrication and Characteristics of Supported Type Planar Solid Oxide Fuel Cell By Co-firing Process

송락현^†

한국에너지기술연구원 수소ㆍ연료전지연구부

Rak-Hyun Song^†

Hydrogen and Fuel Cells Research Department, Korea Institute of Energy Research, Yuseong-gu, Daejeon, 305-343, Korea

E-mail:

e co-firing processes for the supported type planar solid oxide fuel cell were investigated. A flat cell of 7.7 {\times}10.8cm 2 was fabricated successfully by the co-firing process, in which green films were co-sintered in the forms of two layers of anode/electrolyte or of three layers of anode/electrolyte/cathode with gas distributor. A co-fired cell of two layers yielded a power of 200 ㎽/ cm 2 at 608 ㎷. Its performance loss was mainly due to iR drop in the anodic gas distributor, which was attributed to poor contact between anodic gas distributor and current collector. The performance in the co-fired cell of three layers was much lower than that of two layers, which resulted from the large iR drop and activation overvoltage at the cathodic side. In the co-fired cell of two layers, the impedance analysis indicated that the performance decay during cell operation is due to both anode overvoltage and iR drop at anode side. Also the electrode reaction of the co-fired two layers' cell is considered to be controlled by activation overvoltage within the low current of 50 ㎃.

Keywords:planar solid oxide fuel cell;co-firing process;co-fired cell;gas distributor;cell performance

[References]

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Seo IY, et al., Development of the Elementary Technology and the Stack Manufacturing Process of Solid Oxide Fuel Cell, MOCIE Report 971I301923FGI, 1998 (1998)
Song RH, Dokiya M, et al., DENKI KAGAKU, 64(6), 614 (1996)
Kawada T, Sakai N, Yokokawa H, Dokiya, Anzai I, Solid State Ionics, 50, 189 (1992)
Minh NQ, Takahashi T, Science and Technology of Ceramic Fuel Cells, p.132, Elsevier, Amsterdam, (1995) (1995)
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[1] Grove WR, Phil. Mag. S.3, 14(86), 127 (1939)

[2] Baur E, Preis H, Z. Elecktrochem., 43, 727 (1937)

[3] Hooie DT, in Proceedings of 3rd International Symposium on Solid Oxide Fuel Cell (Honolulu, Hawaii, January 1993), eds. Singhal SC, Iwahara H (The Electrochemical Society, Inc., USA, 1993) p.3 (1993)

[4] 內田聰, 土器屋正之, 福田降三, 燃料電池發電, 日本電氣學會燃料電池運轉性調査專門委員會編, 74-103 (1994) (1994)

[5] Elvangovan S, Hartvigsen JJ, Kung SC, Goettler RW, Barringer EA, in Proceedings of the 7th International Symposium on Solid Oxide Fuel Cell (Tsukuba, Japan, February 2001), eds. Ypkokawa H, Singhal SC (The Electrochemical Society, Inc., USA, 2001) p.94 (2001)

[6] Hsueh CH, Carneim RD, Becher PF, Armstrong TR, in Proceedings of the 7th International Symposium on Solid Oxide Fuel Cell (Tsukuba, Japan, February 2001), eds. Ypkokawa H, Singhal SC (The Electrochemical Society, Inc., USA, 2001) p.293 (2001)

[7] Seo IY, et al., Development of the Elementary Technology and the Stack Manufacturing Process of Solid Oxide Fuel Cell, MOCIE Report 971I301923FGI, 1998 (1998)

[8] Song RH, Dokiya M, et al., DENKI KAGAKU, 64(6), 614 (1996)

[9] Kawada T, Sakai N, Yokokawa H, Dokiya, Anzai I, Solid State Ionics, 50, 189 (1992)

[10] Minh NQ, Takahashi T, Science and Technology of Ceramic Fuel Cells, p.132, Elsevier, Amsterdam, (1995) (1995)

[11] Shirakawa T, Matsuda S, Fukushima A, in Proceedings of 3rd Internaltional Symposium on Solid Oxide Fuel Cell (Honolulu, Hawaii, January 1993), eds. Singhal SC, Iwahara H (The Electrochemical Society, Inc., USA, 1993) p.464 (1993)

[12] Norby T, Velle OJ, Leth-Olsen H, Tunold R, in Proceedings of 3rd Internaltional Symposium on Solid Oxide Fuel Cell (Honolulu, Hawaii, January 1993), eds. Singhal SC, Iwahara H (The Electrochemical Society, Inc., USA, 1993) p.473 (1993)