JP5822727B2 - 燃料電池システムの運転方法 - Google Patents
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- H01M8/04537—Electric variables
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- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
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- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
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- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- 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
- H01M8/04231—Purging of the reactants
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- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- 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
- H01M8/04238—Depolarisation
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Description
Claims (15)
- アノード側(14)にアノードガスを供給するアノード供給回路及びカソード側(16)にカソードガスを供給するカソード供給回路を備えるとともに調節可能な負荷に接続された燃料電池システム(10)を運転する方法において、燃料電池システム(10)の発電化学反応の停止に適する方法であって、
停止信号に応じて、前記アノードガス及び前記カソードガスの供給を減少させるステップにして、前記発電化学反応が前記アノードガスの圧力及び前記カソードガスの圧力を雰囲気圧より十分に下回るまで減じるようにする、減少させるステップと、
前記減少させるステップにおいて、前記アノードガスの圧力及び前記カソードガスの圧力をモニタするステップと、
前記減少させるステップにおいて、燃料電池スタック(12)の少なくとも1つのセルの出力電圧をモニタするステップと、
前記負荷が最終的に切断されるまで、モニタされた前記出力電圧が所定の電圧範囲内に収まるように前記負荷を減少させるステップと、
所定の電圧レベルに達した、モニタされた前記出力電圧に応じて燃料電池スタック(12)の少なくとも1つのセルを電気的にシャントするステップと、
少なくとも前記アノード側(14)の圧力を所定の圧力レベルへさらに減少させるステップと、
少なくとも前記アノード側(14)を不活性ガスで充填及び/またはフラッシングを行うステップと、
を備える、燃料電池システムの運転方法。 - 少なくとも前記アノード側(14)の圧力をさらに減少させる前記ステップは、再循環ポンプ(18)を用いる、請求項1に記載の燃料電池システムの運転方法。
- 少なくとも前記アノード側の圧力をさらに減少させるために前記再循環ポンプ(18)を使用する前に、前記燃料電池システム(10)の前記アノード側(14)及び前記カソード側(16)の圧力を絶対圧力0.3barに減少させる、請求項2に記載の燃料電池システムの運転方法。
- 前記アノードガスの圧力と前記カソードガスの圧力との差が、0.5bar以下に保たれる、請求項1乃至3の何れか1項に記載の燃料電池システムの運転方法。
- 前記アノードガスの圧力と前記カソードガスの圧力との差が、0.3bar以下に保たれる、請求項1乃至4の何れか1項に記載の燃料電池システムの運転方法。
- 前記アノード側(14)及び/または前記カソード側(16)が前記不活性ガスで充填及び/またはフラッシングされる前に、前記アノードガス及び前記カソードガスの圧力を絶対圧力0.02bar以下に減少させる、請求項1乃至5の何れか1項に記載の燃料電池システムの運転方法。
- 前記アノード側(14)と前記カソード側(16)の圧力の減少中に、前記カソードガスが環境中に放出される、及び/または、前記アノードガスが水素貯蔵容器へ供給される、請求項1乃至6の何れか1項に記載の燃料電池システムの運転方法。
- 前記カソード側(16)内の全圧が絶対圧力0.5〜0.7barの範囲内に入ったとき、前記カソード側(16)が外気を導入するために一時的に周囲の雰囲気に開放される、請求項1乃至7の何れか1項に記載の燃料電池システムの運転方法。
- 窒素または窒素富化ガスを不活性ガスとして用いる、請求項1乃至8の何れか1項に記載の燃料電池システムの運転方法。
- 前記アノード側(14)のみの圧力の減少の後、前記アノード側(14)が不活性ガス貯蔵容器(28)からの不活性ガスで充填及び/またはフラッシングされる、請求項8または9に記載の燃料電池システムの運転方法。
- 前記カソード側(16)への外気により導入された窒素または窒素富化ガスが、少なくとも部分的に不活性ガス貯蔵容器(28)へ供給される、請求項8乃至10の何れか1項に記載の燃料電池システムの運転方法。
- 前記アノード側(14)が、不活性ガス貯蔵容器(28)及び/または前記カソード側(16)に導入された窒素または窒素富化ガスで充填及び/またはフラッシングされる、請求項8乃至11の何れか1項に記載の燃料電池システムの運転方法。
- アノード側(14)にアノードガスを供給するアノード供給回路とカソード側(16)にカソードガスを供給するカソード供給回路を備え、先行する停止手順において、前記アノード側(14)及びカソード側(16)が不活性ガスで充填及び/またはフラッシングされ、燃料電池スタック(12)が電気的にシャントされており、前記先行する停止手順は、請求項1乃至12の何れか1項に記載の燃料電池システムの運転方法における停止手順である、燃料電池システム(10)の運転方法であって、前記燃料電池システム(10)の発電運転の起動に適する方法であり、
前記不活性ガスを、前記アノード側(14)及び前記カソード側(16)から所定の時間間隔でまたは所定の圧力レベルに達するまで抜き去るステップと、
前記アノード側(14)を前記アノードガスで充填及び/またはフラッシングするステップと、その後
前記カソード側(16)を前記カソードガスで充填及び/またはフラッシングするステップと、
前記電気的シャントを除去するステップと、を備え、
前記アノード側(14)及び/または前記カソード側(16)の再循環ポンプ(18、20)が、アノード側(14)及び/またはカソード側(16)の圧力を下げるために、及び/または、前記アノード側(14)及び/または前記カソード側(16)を前記不活性ガスで充填及び/またはフラッシングするために用いられる、
燃料電池システムの運転方法。 - 前記アノード側(14)と前記カソード側(16)との間の圧力差が、0.5bar以下に維持される、請求項13に記載の燃料電池システムの運転方法。
- 前記不活性ガスが不活性ガス貯蔵容器(28)に供給される、請求項13または14に記載の燃料電池システムの運転方法。
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Application Number | Priority Date | Filing Date | Title |
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EP08164501 | 2008-09-17 | ||
EP08164501.2 | 2008-09-17 | ||
PCT/EP2009/055079 WO2010031601A1 (en) | 2008-09-17 | 2009-04-27 | Method of shut-down and starting of a fuel cell |
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JP2012509552A JP2012509552A (ja) | 2012-04-19 |
JP5822727B2 true JP5822727B2 (ja) | 2015-11-24 |
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US (1) | US9413020B2 (ja) |
EP (1) | EP2338198B1 (ja) |
JP (1) | JP5822727B2 (ja) |
CN (1) | CN102217128B (ja) |
WO (1) | WO2010031601A1 (ja) |
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2009
- 2009-04-27 EP EP09779364.0A patent/EP2338198B1/en active Active
- 2009-04-27 JP JP2011527262A patent/JP5822727B2/ja active Active
- 2009-04-27 WO PCT/EP2009/055079 patent/WO2010031601A1/en active Application Filing
- 2009-04-27 CN CN200980145711.5A patent/CN102217128B/zh active Active
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EP2338198B1 (en) | 2017-06-28 |
US9413020B2 (en) | 2016-08-09 |
JP2012509552A (ja) | 2012-04-19 |
EP2338198A1 (en) | 2011-06-29 |
WO2010031601A1 (en) | 2010-03-25 |
US20110250516A1 (en) | 2011-10-13 |
CN102217128B (zh) | 2015-04-01 |
CN102217128A (zh) | 2011-10-12 |
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