Design of leakage gas induction channels for reliable planar-type solid oxide fuel cell stacks

H. Yoon; I. Jang; C. Kim; S. Kim; U. Paik

doi:10.1149/07801.2265ecst

Design of leakage gas induction channels for reliable planar-type solid oxide fuel cell stacks

H. Yoon, I. Jang, C. Kim, S. Kim, U. Paik

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The leakage of gas in a planar solid oxide fuel cell (SOFC) stack is one of the important factors associated with stack degradation. When the fuel leaks to the air electrode, the catalytic property of the cathode deteriorates. Further, when air leaks to the anode comprised of Ni metal, the electrolyte thin film is peeled from the anode surface as result of the re-oxidation of Ni. Therefore, one of the ways to prevent these deterioration characteristics of the SOFC stack is to design a sealing method that can prevent gas leakage. In this study, we have developed a stack with specially designed channels which incorporates sealing gaskets that release leaked gas to outside, thereby preventing it from flowing into the fuel and air electrodes and ensuring the stability of the SOFC stack. The stack is designed to function with 10×10 cm² size cells, and to undergo frequent thermal cycles rising from room temperature to operation temperature and then back to room temperature.

Original language	English
Title of host publication	ECS Transactions
Editors	S. C. Singhal, T. Kawada
Publisher	Electrochemical Society Inc.
Pages	2265-2269
Number of pages	5
Edition	1
ISBN (Electronic)	9781607688150, 9781607688150
DOIs	https://doi.org/10.1149/07801.2265ecst
State	Published - May 30 2017
Externally published	Yes
Event	15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017 - Hollywood, United States Duration: Jul 23 2017 → Jul 28 2017

Publication series

Name	ECS Transactions
Number	1
Volume	78
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Conference

Conference	15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017
Country/Territory	United States
City	Hollywood
Period	07/23/17 → 07/28/17

Funding

This work was financially supported by the New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) funded by the Ministry of Trade, Industry & Energy, Republic of Korea (20153030031480).

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10.1149/07801.2265ecst

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title = "Design of leakage gas induction channels for reliable planar-type solid oxide fuel cell stacks",

abstract = "The leakage of gas in a planar solid oxide fuel cell (SOFC) stack is one of the important factors associated with stack degradation. When the fuel leaks to the air electrode, the catalytic property of the cathode deteriorates. Further, when air leaks to the anode comprised of Ni metal, the electrolyte thin film is peeled from the anode surface as result of the re-oxidation of Ni. Therefore, one of the ways to prevent these deterioration characteristics of the SOFC stack is to design a sealing method that can prevent gas leakage. In this study, we have developed a stack with specially designed channels which incorporates sealing gaskets that release leaked gas to outside, thereby preventing it from flowing into the fuel and air electrodes and ensuring the stability of the SOFC stack. The stack is designed to function with 10×10 cm2 size cells, and to undergo frequent thermal cycles rising from room temperature to operation temperature and then back to room temperature.",

author = "H. Yoon and I. Jang and C. Kim and S. Kim and U. Paik",

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Yoon, H, Jang, I, Kim, C, Kim, S & Paik, U 2017, Design of leakage gas induction channels for reliable planar-type solid oxide fuel cell stacks. in SC Singhal & T Kawada (eds), ECS Transactions. 1 edn, ECS Transactions, no. 1, vol. 78, Electrochemical Society Inc., pp. 2265-2269, 15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017, Hollywood, United States, 07/23/17. https://doi.org/10.1149/07801.2265ecst

Design of leakage gas induction channels for reliable planar-type solid oxide fuel cell stacks. / Yoon, H.; Jang, I.; Kim, C. et al.
ECS Transactions. ed. / S. C. Singhal; T. Kawada. 1. ed. Electrochemical Society Inc., 2017. p. 2265-2269 (ECS Transactions; Vol. 78, No. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Design of leakage gas induction channels for reliable planar-type solid oxide fuel cell stacks

AU - Yoon, H.

AU - Jang, I.

AU - Kim, C.

AU - Kim, S.

AU - Paik, U.

PY - 2017/5/30

Y1 - 2017/5/30

N2 - The leakage of gas in a planar solid oxide fuel cell (SOFC) stack is one of the important factors associated with stack degradation. When the fuel leaks to the air electrode, the catalytic property of the cathode deteriorates. Further, when air leaks to the anode comprised of Ni metal, the electrolyte thin film is peeled from the anode surface as result of the re-oxidation of Ni. Therefore, one of the ways to prevent these deterioration characteristics of the SOFC stack is to design a sealing method that can prevent gas leakage. In this study, we have developed a stack with specially designed channels which incorporates sealing gaskets that release leaked gas to outside, thereby preventing it from flowing into the fuel and air electrodes and ensuring the stability of the SOFC stack. The stack is designed to function with 10×10 cm2 size cells, and to undergo frequent thermal cycles rising from room temperature to operation temperature and then back to room temperature.

AB - The leakage of gas in a planar solid oxide fuel cell (SOFC) stack is one of the important factors associated with stack degradation. When the fuel leaks to the air electrode, the catalytic property of the cathode deteriorates. Further, when air leaks to the anode comprised of Ni metal, the electrolyte thin film is peeled from the anode surface as result of the re-oxidation of Ni. Therefore, one of the ways to prevent these deterioration characteristics of the SOFC stack is to design a sealing method that can prevent gas leakage. In this study, we have developed a stack with specially designed channels which incorporates sealing gaskets that release leaked gas to outside, thereby preventing it from flowing into the fuel and air electrodes and ensuring the stability of the SOFC stack. The stack is designed to function with 10×10 cm2 size cells, and to undergo frequent thermal cycles rising from room temperature to operation temperature and then back to room temperature.

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Design of leakage gas induction channels for reliable planar-type solid oxide fuel cell stacks

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