JP2013524442A - 高電力密度を有する高温膜/電極接合体および対応する製造方法 - Google Patents
高電力密度を有する高温膜/電極接合体および対応する製造方法 Download PDFInfo
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- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
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- H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
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- H01M4/90—Selection of catalytic material
- H01M4/92—Metals of platinum group
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- H01M4/00—Electrodes
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- H01M4/90—Selection of catalytic material
- H01M4/92—Metals of platinum group
- H01M4/925—Metals of platinum group supported on carriers, e.g. powder carriers
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- H01M4/90—Selection of catalytic material
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Abstract
【選択図】図2
Description
本出願は、両出願に共通する全ての主題に対して、2010年4月1日に出願された同時係属中の米国仮出願第61/320,040号の優先権および利益を主張するものである。前記仮出願の開示内容全体が参照により本明細書に組み込まれる。
(1)燃料極:H2→2H++2e−
(2)空気極:1/2O2+2H++2e−→1/2H2O
(3)セル全体:H2+1/2O2→H2O
フルオロポリマー:パーフルオロアイオノマー(例えば、ナフィオン(登録商標)および他の同等のリン酸塩):Zr3(PO4)4、Zr(HPO4)2、HZr2(PO4)3、Ti(HPO4)2、KH2PO4、Cs2PO4、MgHPO4、HSbP2O8、HSb3P2O8、H5Sb5P2O20など
硫酸塩:MHSO4(M:Li、Na、K、Rb、CsおよびNH4)
ポリ酸:H3PW12O40.nH2O(n=21〜29)、H3SiW12O40.nH2O(n=21〜29)、HxWO3、HSbWO6、HNbO3、HTiNbO5、H5Ti4O9、HSbO3、H2MoO4など
亜セレン酸塩および亜砒酸塩:M3H(SeO4)2(M:Cs、RbおよびNH4)、KH2AsO4、UO2AsO4など
リン化物:ZrP、TiP、HfPなど
酸化物:Al2O3、Sb2O5、SnO2、ZrO2など
ケイ酸塩:ゼオライト、H−ナトロライト、H−モルデナイト、粘土など
超酸:Sb2F5、フルオロスルホン酸、スルホン酸など
Claims (14)
- 燃料極と空気極との間に配置された高温プロトン交換膜を含む膜/電極接合体であって、
前記膜と前記燃料極および空気極のそれぞれとの界面に塗布された層内に、触媒および少なくとも1種の添加剤が配置されている膜/電極接合体。 - 前記触媒は、プラチナまたはプラチナ合金粒子を含む、請求項1に記載の接合体。
- 前記触媒粒子は、高表面積導電性粉末材料に担持されているか担持されていない、請求項1に記載の接合体。
- 前記少なくとも1種の添加剤は、前記界面に前記触媒重量の約1%〜15%の量で、有機酸もしくは無機酸材料、酸性塩、フルオロポリマー、パーフルオロ酸電解質またはアイオノマーを含む、請求項1に記載の接合体。
- 前記少なくとも1種の添加剤は、リン酸に接触した状態で前記触媒と共に好ましい濡れ特性および反応特性を有する添加剤を含む、請求項1に記載の接合体。
- 前記得られた接合体は、大気圧のH2/空気を180℃で動作させた場合に、0.67Vで約180〜300mW/cm2の単位面積当たりの電力密度を有する、請求項1に記載の接合体。
- 前記得られた接合体は、大気圧のH2/空気を180℃で動作させた場合に、0.67Vで約200mW/cm2の単位面積当たりの電力密度を有する、請求項1に記載の接合体。
- 膜/電極接合体の製造方法であって、
第1の電極の接合面および第2の電極の接合面に触媒および添加剤層を同時蒸着させること、および
前記第1の電極の前記接合面に沿って前記第1の電極を高温プロトン交換膜の第1の側に接着または付着させ、かつ前記第2の電極の前記接合面に沿って前記第2の電極を前記高温プロトン交換膜の第2の側に接着または付着させること、
を含む方法。 - 前記触媒は、担持されたか担持されていないプラチナを含む、請求項8に記載の方法。
- 前記触媒は、合金粒子を含有するプラチナを含む、請求項8に記載の方法。
- 前記添加剤層は、酸性材料、アアイオノマーまたはその両方で形成された少なくとも1種の添加剤を含む、請求項8に記載の方法。
- 前記添加剤層は、リン酸に接触した状態で前記触媒と共に好ましい濡れ特性および反応特性を有する少なくとも1種の添加剤を含む、請求項8に記載の方法。
- 前記得られた接合体は、大気圧のH2/空気を180℃で動作させた場合に、0.67Vで約180〜300mW/cm2の単位面積当たりの電力密度を有する、請求項8に記載の方法。
- 前記得られた接合体は、大気圧のH2/空気を180℃で動作させた場合に、0.67Vで約200mW/cm2の単位面積当たりの電力密度を有する、請求項8に記載の方法。
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US32004010P | 2010-04-01 | 2010-04-01 | |
US61/320,040 | 2010-04-01 | ||
PCT/US2011/029221 WO2011123275A1 (en) | 2010-04-01 | 2011-03-21 | High temperature membrane electrode assembly with high power density and corresponding method of making |
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JP2022514043A (ja) * | 2018-12-19 | 2022-02-09 | シェフラー テクノロジーズ アー・ゲー ウント コー. カー・ゲー | 燃料電池または電解槽 |
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CN106207236B (zh) * | 2016-08-25 | 2019-03-29 | 北京理工大学 | 一种基于mea电极的光电复合燃料电池 |
KR101773969B1 (ko) * | 2016-11-11 | 2017-09-04 | 한국과학기술연구원 | 환원반응을 향상시키는 전기화학 반응 셀 |
JP7052549B2 (ja) * | 2018-02-05 | 2022-04-12 | 株式会社デンソー | 酸化還元反応用電極および燃料電池 |
EP3799665A4 (en) * | 2018-05-10 | 2022-02-02 | Celgard, LLC | MICROLATTED DIAPHRAGMS, BATTERY SEPARATORS, BATTERIES AND RELATED PROCESSES |
CN116367995A (zh) * | 2020-07-07 | 2023-06-30 | 赛尔格有限责任公司 | 改进的多层多孔膜及其制造方法 |
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JP2022514043A (ja) * | 2018-12-19 | 2022-02-09 | シェフラー テクノロジーズ アー・ゲー ウント コー. カー・ゲー | 燃料電池または電解槽 |
JP7254933B2 (ja) | 2018-12-19 | 2023-04-10 | シェフラー テクノロジーズ アー・ゲー ウント コー. カー・ゲー | 燃料電池または電解槽 |
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US8758953B2 (en) | 2014-06-24 |
US20110244364A1 (en) | 2011-10-06 |
US20160172700A1 (en) | 2016-06-16 |
US9559372B2 (en) | 2017-01-31 |
WO2011123275A1 (en) | 2011-10-06 |
US9240606B2 (en) | 2016-01-19 |
EP2553751A4 (en) | 2014-07-16 |
JP2016136526A (ja) | 2016-07-28 |
EP2553751A1 (en) | 2013-02-06 |
US20140242494A1 (en) | 2014-08-28 |
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