JP2009277637A - 燃料電池の活性化方法 - Google Patents
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- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
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- H01M8/00—Fuel cells; Manufacture thereof
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- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
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- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
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Abstract
【解決手段】1)燃料電池の燃料極に水素を、空気極に空気を供給しながらセル電圧を一定水準の開回路電圧(OCV)(またはOCVより低い一定水準)に維持する第1段階と、2)燃料極への水素供給をそのまま維持しつつ、空気極への空気供給を遮断する第2段階と、3)セル電圧をOCVから最低入力電圧まで下げる第3段階と、4)空気極に空気を再び供給しながら、セル電圧を一定水準のOCV(またはOCVより低い一定水準)まで上げる第4段階と、5)燃料極に水素を、空気極に空気を十分に供給しながら、燃料電池を定電流または定電圧運転モードで運転する第5段階と、6)第1〜第5段階を複数回繰り返す第6段階を順次行うことから構成される。
【選択図】図1
Description
以下、本発明の好ましい実施例をより詳しく説明するが、下記実施例に限定されるものではない。
12; 燃料極
14; 空気極
16; ガス拡散層
Claims (6)
- 燃料電池の燃料極に水素を、空気極に空気を供給しながらセル電圧を一定水準の開回路電圧(OCV)に維持する第1段階と、
前記空気極への空気供給を遮断する第2段階と、
セル電圧を前記開回路電圧(OCV)から最低入力電圧まで下げる第3段階と、
前記空気極に空気を再び供給しながら、セル電圧を前記一定水準の開回路電圧(OCV)まで上昇させる第4段階と、
前記燃料極に水素を、前記空気極に空気を十分に供給しながら、燃料電池を定電流または定電圧運転モードで運転する第5段階と、
前記第1〜第5段階を複数回繰り返す第6段階と、を順次行うことを特徴とする燃料電池の活性化方法。 - 燃料電池の燃料極に水素を、空気極に空気を供給しながら、電流負荷を印加して燃料電池のセル電圧を開回路電圧(OCV)より低い一定水準の電圧に維持する第1段階と、
前記空気極への空気供給を遮断する第2段階と、
セル電圧を最低入力電圧まで下げる第3段階と、
前記空気極に空気を再び供給しながら、電流負荷を再び印加してセル電圧を前記開回路電圧(OCV)より低い一定水準まで上昇させる第4段階と、
前記燃料極に水素を、前記空気極に空気を十分に供給しながら、燃料電池を定電流または定電圧運転モードで運転する第5段階と、
前記第1〜第5段階を複数回繰り返す第6段階と、を順次行うことを特徴とする燃料電池の活性化方法。 - 前記第1段階及び前記第4段階における前記一定水準の開回路電圧(OCV)が、0.95〜1.2Vであり、前記第1段階では、セル電圧を前記開回路電圧(OCV)にして10〜20秒間維持することを特徴とする請求項1に記載の燃料電池の活性化方法。
- 前記第1段階及び前記第4段階における前記開回路電圧(OCV)より低い一定水準の電圧が、0.8〜1.23Vであり、前記第1段階では、セル電圧を開回路電圧(OCV)より低い一定水準の電圧にして10〜20秒間維持することを特徴とする請求項2記載の燃料電池の活性化方法。
- 前記第3段階における前記最低入力電圧が、0.2Vであることを特徴とする請求項1または2記載の燃料電池の活性化方法。
- 前記第5段階における前記定電流または定電圧運転モードの運転電圧は、燃料電池のセル当り0.1〜0.8Vであることを特徴とする請求項1または2記載の燃料電池の活性化方法。
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KR10-2008-0044894 | 2008-05-15 | ||
KR1020080044894A KR100941256B1 (ko) | 2008-05-15 | 2008-05-15 | 연료전지 가속 활성화 방법 |
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JP2009277637A true JP2009277637A (ja) | 2009-11-26 |
JP5279072B2 JP5279072B2 (ja) | 2013-09-04 |
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US (1) | US20090286112A1 (ja) |
JP (1) | JP5279072B2 (ja) |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2013026209A (ja) * | 2011-07-18 | 2013-02-04 | Hyundai Motor Co Ltd | 燃料電池スタックの活性化装置及び方法 |
JP2013105654A (ja) * | 2011-11-15 | 2013-05-30 | Toyota Motor Corp | 燃料電池システム及び燃料電池の触媒性能回復方法 |
JP2015079729A (ja) * | 2013-10-14 | 2015-04-23 | 現代自動車株式会社 | 燃料電池スタックの性能回復方法 |
KR101637833B1 (ko) * | 2015-05-18 | 2016-07-07 | 현대자동차주식회사 | 연료전지 스택 성능 회복 방법 및 장치 |
JP2017033922A (ja) * | 2015-08-05 | 2017-02-09 | 現代自動車株式会社Hyundai Motor Company | 燃料電池スタック活性化工法 |
JP2020047560A (ja) * | 2018-09-21 | 2020-03-26 | トヨタ自動車株式会社 | 燃料電池のエージング方法 |
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CN103840184B (zh) * | 2012-11-23 | 2015-12-23 | 中国科学院大连化学物理研究所 | 一种直接硼氢化物燃料电池单电池活化方法 |
KR101575415B1 (ko) * | 2013-10-14 | 2015-12-09 | 현대자동차주식회사 | 연료전지 스택의 성능 회복 방법 |
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JP2013026209A (ja) * | 2011-07-18 | 2013-02-04 | Hyundai Motor Co Ltd | 燃料電池スタックの活性化装置及び方法 |
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JP2020047560A (ja) * | 2018-09-21 | 2020-03-26 | トヨタ自動車株式会社 | 燃料電池のエージング方法 |
JP7084268B2 (ja) | 2018-09-21 | 2022-06-14 | トヨタ自動車株式会社 | 燃料電池のエージング方法 |
Also Published As
Publication number | Publication date |
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CN101582513A (zh) | 2009-11-18 |
KR100941256B1 (ko) | 2010-02-11 |
KR20090119066A (ko) | 2009-11-19 |
CN101582513B (zh) | 2014-07-16 |
JP5279072B2 (ja) | 2013-09-04 |
US20090286112A1 (en) | 2009-11-19 |
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