Effect of current cycles on performance of anode-supported SOFC
Performance of an anode-supported solid oxide fuel cell was investigated under several conditions of current cycles. The current cycles between 0 A/cm2 and the maximum current density were repeated. The cell was composed of 8 mol % Y2O3-ZrO2 (YSZ) electrolyte, Ni-YSZ fuel electrode and La0.8Sr0.2MnO...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2014-08-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/80/816/80_2014tep0233/_pdf/-char/en |
| _version_ | 1798019098647461888 |
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| author | Masaaki IZUMI Soichiro OMURA Xinming LIU |
| author_facet | Masaaki IZUMI Soichiro OMURA Xinming LIU |
| author_sort | Masaaki IZUMI |
| collection | DOAJ |
| description | Performance of an anode-supported solid oxide fuel cell was investigated under several conditions of current cycles. The current cycles between 0 A/cm2 and the maximum current density were repeated. The cell was composed of 8 mol % Y2O3-ZrO2 (YSZ) electrolyte, Ni-YSZ fuel electrode and La0.8Sr0.2MnO3 air electrode, and did not have other active functional layers which contact with the electrolyte. By repeating a current cycle at the operating temperature of 1273 K, the terminal voltage gradually decreased. It was found that the deterioration of performance was due to the increase of the resistance in the higher frequency region, not the ohm resistance by electrochemical impedance spectroscopy. This deterioration of performance was not influenced by hydrogen gas flow rate over the range of 30 to 100 ml/min. As the time of non-current constituted between the cycles was extended, the deterioration of performance decreased, and the deterioration did not occur at all under the condition of the time of non-current exceeding 5 hours. As the operating temperature decreased to 1123 K, also, the increase of the resistance in the higher frequency region by the current cycles was reduced. |
| first_indexed | 2024-04-11T16:35:07Z |
| format | Article |
| id | doaj.art-bdd8dfed223b4279bb790797af75d297 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T16:35:07Z |
| publishDate | 2014-08-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-bdd8dfed223b4279bb790797af75d2972022-12-22T04:13:52ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612014-08-0180816TEP0233TEP023310.1299/transjsme.2014tep0233transjsmeEffect of current cycles on performance of anode-supported SOFCMasaaki IZUMI0Soichiro OMURA1Xinming LIU2Faculty of Environmental Engineering, The University of KitakyushuFaculty of Environmental Engineering, The University of KitakyushuFaculty of Environmental Engineering, The University of KitakyushuPerformance of an anode-supported solid oxide fuel cell was investigated under several conditions of current cycles. The current cycles between 0 A/cm2 and the maximum current density were repeated. The cell was composed of 8 mol % Y2O3-ZrO2 (YSZ) electrolyte, Ni-YSZ fuel electrode and La0.8Sr0.2MnO3 air electrode, and did not have other active functional layers which contact with the electrolyte. By repeating a current cycle at the operating temperature of 1273 K, the terminal voltage gradually decreased. It was found that the deterioration of performance was due to the increase of the resistance in the higher frequency region, not the ohm resistance by electrochemical impedance spectroscopy. This deterioration of performance was not influenced by hydrogen gas flow rate over the range of 30 to 100 ml/min. As the time of non-current constituted between the cycles was extended, the deterioration of performance decreased, and the deterioration did not occur at all under the condition of the time of non-current exceeding 5 hours. As the operating temperature decreased to 1123 K, also, the increase of the resistance in the higher frequency region by the current cycles was reduced.https://www.jstage.jst.go.jp/article/transjsme/80/816/80_2014tep0233/_pdf/-char/ensolid oxide fuel cellanode-supported cellcurrent cycledeteriorationelectrochemical impedance spectroscopy |
| spellingShingle | Masaaki IZUMI Soichiro OMURA Xinming LIU Effect of current cycles on performance of anode-supported SOFC Nihon Kikai Gakkai ronbunshu solid oxide fuel cell anode-supported cell current cycle deterioration electrochemical impedance spectroscopy |
| title | Effect of current cycles on performance of anode-supported SOFC |
| title_full | Effect of current cycles on performance of anode-supported SOFC |
| title_fullStr | Effect of current cycles on performance of anode-supported SOFC |
| title_full_unstemmed | Effect of current cycles on performance of anode-supported SOFC |
| title_short | Effect of current cycles on performance of anode-supported SOFC |
| title_sort | effect of current cycles on performance of anode supported sofc |
| topic | solid oxide fuel cell anode-supported cell current cycle deterioration electrochemical impedance spectroscopy |
| url | https://www.jstage.jst.go.jp/article/transjsme/80/816/80_2014tep0233/_pdf/-char/en |
| work_keys_str_mv | AT masaakiizumi effectofcurrentcyclesonperformanceofanodesupportedsofc AT soichiroomura effectofcurrentcyclesonperformanceofanodesupportedsofc AT xinmingliu effectofcurrentcyclesonperformanceofanodesupportedsofc |