JP2010518563A - 多孔質集電体が設けられる燃料電池のための双極ユニット - Google Patents
多孔質集電体が設けられる燃料電池のための双極ユニット Download PDFInfo
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Abstract
【選択図】図7
Description
し、連続的な連結部は、例えば、レーザ溶接またはブレイズ溶接によって得られる。
Claims (24)
- 外面および内面と、前記それぞれの内面間の連結部と、ガス状反応物および冷却剤の伝達用の開口部とが各々に備えられた一対の金属板を備える燃料電池のための双極ユニットであって、前記板のうちの少なくとも1つには、前記冷却剤の通路を確実にするように方向付けられる前記内面間に備えられた第1の流路を形成する第1の波形が設けられ、前記外面の各々は、対向する伝導性かつ多孔質の集電体と連続的かつ均一に電気接触する、双極ユニット。
- 第1の波形が設けられた前記少なくとも1つの板に、孔の連携により、前記ガス状反応物のうちの少なくとも1つの分配を確実にするように方向付けられる前記内面間に備えられた第2の流路を形成する第2の波形も設けられる、請求項1に記載の双極ユニット。
- 第1の波形および第2の波形が設けられた前記少なくとも1つの板に、電池活性領域の外部のガスケットと油圧密封に割り当てられる1つの外周帯に対応する第3の波形も設けられる、請求項2に記載の双極ユニット。
- 第1の波形が設けられた前記少なくとも1つの板の外面と、前記対向する多孔質集電体との間の前記連続的かつ均一な電気接触は、前記波形および前記集電体間の相互貫入によってもたらされる、請求項1または2に記載の双極ユニット。
- 前記波形の高さが、0.1ミリメートルから0.5ミリメートルの間の、請求項1から4のいずれか1項に記載の双極ユニット。
- 前記多孔質集電体は、発泡体、布、メッシュおよび膨張シート、焼結粉末から成る群から単体または重合して選択される、請求項1に記載の双極ユニット。
- 前記発泡体は、0.5ミリメートルから5ミリメートルの間に含まれる初期厚さを有し、0.2ミリメートルから0.5ミリメートルの間に含まれる最終厚さまで圧縮される、請求項6に記載の双極ユニット。
- 前記発泡体は、平均直径が0.2ミリメートルから0.5ミリメートルである細孔を有する、請求項6に記載の双極ユニット。
- 前記板および前記集電体の材料は、ステンレス鋼、ニッケルクロム合金、およびチタンを含む群から選択される、請求項1に記載の双極ユニット。
- 前記板の前記内面間の前記連結部は、連続的であり、前記第1の流路および前記開口部を密封する、請求項1に記載の双極ユニット。
- 前記板の前記内面間の前記連結部は、連続的であり、前記第1の流路および第2の流路ならびに前記開口部を密封する、請求項2から10のいずれか1項に記載の双極ユニット。
- 前記連続的な連結部は、レーザ溶接またはブレイズ溶接によって得られる、請求項10または11に記載の双極ユニット。
- 前記多孔質集電体は、レーザ溶接によって、または接着剤によって前記一対の板の前記外面に固定されて、モノリシックユニットを形成する、請求項1から12のいずれか1項に記載の双極ユニット。
- 前記接着剤は、伝導性である、請求項13に記載の双極ユニット。
- 前記板および前記多孔質集電体には、任意にニオブ、タンタル、チタン、および酸化ジルコニウムの群から選択される接着促進剤が添加された、白金またはその酸化物の群の金属の群から選択される材料から成る電気伝導性の腐食保護薄膜が設けられる、請求項1に記載の双極ユニット。
- 前記保護薄膜は、ルテニウムまたは酸化ルテニウムを含む、請求項15に記載の双極ユニット。
- 前記保護薄膜厚さが、0.1マイクロメータから1マイクロメータの間の、請求項15または16に記載の双極ユニット。
- 前記保護薄膜は、50%と同等または未満の多孔率を有する、請求項15から17のいずれか1項に記載の双極ユニット。
- 平面シートの圧力成型による前記波形の形成を含む、請求項1から18のいずれか1項に記載の双極ユニットを製造する方法。
- 前記平面シートの厚さが、0.05ミリメートルから0.2ミリメートルの間の、請求項19に記載の方法。
- 前記相互貫入は、波形が設けられる前記少なくとも1つの板上の前記多孔質集電体の圧力成型によって得られる、請求項4に記載の双極ユニットを製造する方法。
- 前記相互貫入は、平面シートおよび前記多孔質集電体の同時圧力成型によって得られる、請求項4に記載の双極ユニットを製造する方法。
- 請求項1から18のいずれか1項に記載の一対の双極ユニットを備えるポリマー膜燃料電池。
- MEA要素にインターカレートされた請求項1から18のいずれか1項に記載の対の双極ユニットによって画定される多様なポリマー膜燃料電池を備える燃料電池積層体。
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PCT/EP2007/051133 WO2008095533A1 (en) | 2007-02-06 | 2007-02-06 | Bipolar unit for fuel cell provided with porous current collectors |
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JP2010518563A true JP2010518563A (ja) | 2010-05-27 |
JP2010518563A5 JP2010518563A5 (ja) | 2013-01-10 |
JP5275255B2 JP5275255B2 (ja) | 2013-08-28 |
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US (2) | US7955753B2 (ja) |
EP (1) | EP2130254B8 (ja) |
JP (1) | JP5275255B2 (ja) |
CA (1) | CA2677576C (ja) |
ES (1) | ES2674072T3 (ja) |
WO (1) | WO2008095533A1 (ja) |
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JP7208182B2 (ja) | 2020-02-19 | 2023-01-18 | 株式会社日立産機システム | 静止誘導機器および変圧器 |
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EP2130254A1 (en) | 2009-12-09 |
US20090087710A1 (en) | 2009-04-02 |
EP2130254B8 (en) | 2018-06-13 |
CA2677576C (en) | 2013-11-12 |
US8025920B2 (en) | 2011-09-27 |
JP5275255B2 (ja) | 2013-08-28 |
WO2008095533A1 (en) | 2008-08-14 |
CA2677576A1 (en) | 2008-08-14 |
EP2130254B1 (en) | 2018-04-18 |
ES2674072T3 (es) | 2018-06-27 |
US20100281682A1 (en) | 2010-11-11 |
US7955753B2 (en) | 2011-06-07 |
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