JP2009501423A - 多層拡散媒体基板 - Google Patents
多層拡散媒体基板 Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
【選択図】図1
Description
Claims (35)
- 触媒層および流れ場を有する燃料電池用の多層拡散媒体基板であって、
前記流れ場に係合する少なくとも1つの硬質層と、
前記少なくとも1つの硬質層上に設けられるかまたは前記少なくとも1つの硬質層に隣接する、前記触媒層に係合する少なくとも1つの圧縮性の層と
を備え、
前記少なくとも1つの硬質層が、前記少なくとも1つの圧縮性の層よりも大きな弾性率を有し、
前記少なくとも1つの硬質層が、前記拡散媒体基板の全厚さの70%以下の厚さを有する、多層拡散媒体基板。 - 微細多孔層を前記少なくとも1つの圧縮性の層上にさらに備える、請求項1に記載の拡散媒体基板。
- 前記少なくとも1つの硬質層が炭素繊維紙層を備える、請求項1に記載の拡散媒体基板。
- 前記炭素繊維紙層が湿式型炭素繊維層である、請求項3に記載の拡散媒体基板。
- 前記少なくとも1つの圧縮性の層が炭素繊維層を備える、請求項1に記載の拡散媒体基板。
- 前記炭素繊維層が乾式型炭素繊維層である、請求項5に記載の拡散媒体基板。
- 前記少なくとも1つの硬質層が、前記少なくとも1つの圧縮性の層の少なくとも3倍、より好ましくは少なくとも6倍の弾性率を有する、請求項1に記載の拡散媒体基板。
- 前記少なくとも1つの硬質層が、前記拡散媒体基板の前記全厚さの少なくとも15%であって、50%以下の厚さを有する、請求項1に記載の拡散媒体基板。
- 前記硬質層が、200ミクロン未満であって20ミクロンより大きい厚さを有する、請求項1に記載の拡散媒体基板。
- 前記少なくとも1つの圧縮性の層が、前記少なくとも1つの硬質層よりも圧縮性である、請求項1に記載の拡散媒体基板。
- 前記少なくとも1つの圧縮性の層が、70ミクロンより大きくて400ミクロン未満の厚さを有する、請求項1に記載の拡散媒体基板。
- 触媒層および流れ場を有する燃料電池用の多層拡散媒体基板であって、
前記流れ場に係合する少なくとも1つの硬質層と、
前記少なくとも1つの硬質層上に設けられ、前記触媒層に係合する少なくとも1つの圧縮性の層とを備え、
前記少なくとも1つの硬質層および前記少なくとも1つの圧縮性の層が、前記少なくとも1つの硬質層および前記少なくとも1つの圧縮性の層の平面に概して沿って配置されるx−y方向、および該x−y方向と略垂直なz方向を定め、
前記少なくとも1つの圧縮性の層が、前記少なくとも1つの硬質層と比較して前記z方向に沿ってより大きな圧縮性を有し、前記少なくとも1つの硬質層が、前記少なくとも1つの圧縮性の層よりも大きな弾性率を有し、
前記少なくとも1つの硬質層が、前記拡散媒体基板の全厚さの70%以下の厚さを有する、多層拡散媒体基板。 - 微細多孔層を前記少なくとも1つの圧縮性の層上にさらに備える、請求項12に記載の拡散媒体基板。
- 前記少なくとも1つの硬質層が湿式型炭素繊維層を備える、請求項12に記載の拡散媒体基板。
- 前記少なくとも1つの圧縮性の層が乾式型炭素繊維層を備える、請求項12に記載の拡散媒体基板。
- 前記少なくとも1つの圧縮性の層が、3000MPa未満の弾性率を有する、請求項12に記載の拡散媒体基板。
- 第1の炭素繊維層を形成するステップと、
前記第1の炭素繊維層を硬化させるステップと、
第2の炭素繊維層を前記第1の炭素繊維層上に設けるステップと
を含む、多層拡散媒体基板を製造する方法。 - 第1の炭素繊維層を形成する前記ステップが、湿式製紙法を用いて前記第1の炭素繊維層を形成するステップを含む、請求項17に記載の方法。
- 第2の炭素繊維層を形成する前記ステップが、乾式製紙法を用いて前記第2の炭素繊維層を形成するステップを含む、請求項18に記載の方法。
- 微細多孔層を前記第2の炭素繊維層上に設けるステップをさらに含む、請求項17に記載の方法。
- 前記樹脂結合剤を約100℃から約300℃の温度にさらすことによって前記樹脂結合剤を硬化させるステップをさらに含む、請求項17に記載の方法。
- 多層拡散媒体基板を製造する方法であって、
第1の炭素繊維層を形成するステップと、
第2の炭素繊維層を前記第1の炭素繊維層上に形成するステップとを含み、
前記第1の炭素繊維層が、前記第2の炭素繊維層より大きい弾性率を有し、
前記第1の炭素繊維層が、前記拡散媒体基板の全厚さの70%以下の厚さを有する、方法。 - 第1の炭素繊維層を形成する前記ステップが、湿式製紙法を用いて前記第1の炭素繊維層を形成するステップを含む、請求項22に記載の方法。
- 第2の炭素繊維層を形成する前記ステップが、乾式製紙法を用いて前記第2の炭素繊維層を形成するステップを含む、請求項22に記載の方法。
- 微細多孔層を前記第2の炭素繊維層上に設けるステップをさらに含む、請求項22に記載の方法。
- 多層拡散媒体基板を製造する方法であって、
第1の炭素繊維層を形成するステップと、
前記第1の炭素繊維層を硬化させるステップと、
第2の炭素繊維層を前記第1の炭素繊維層上に形成するステップとを含み、
前記第1の炭素繊維層が、前記第2の炭素繊維層よりも大きな弾性率を有し、
前記第1の炭素繊維層が、前記拡散媒体基板の全厚さの70%以下の厚さを有する、方法。 - 第1の炭素繊維層を形成する前記ステップが、湿式製紙法を用いて前記第1の炭素繊維層を形成するステップを含む、請求項26に記載の方法。
- 第2の炭素繊維層を形成する前記ステップが、乾式製紙法を用いて前記第2の炭素繊維層を形成するステップを含む、請求項26に記載の方法。
- 微細多孔層を前記第2の炭素繊維層上に設けるステップをさらに含む、請求項26に記載の方法。
- 触媒層および流れ場を有する燃料電池用の多層拡散媒体基板であって、
前記流れ場に係合する少なくとも1つの硬質層と、
前記少なくとも1つの硬質層上に設けられ、前記触媒層に係合する少なくとも1つの圧縮性の層とを備え、
前記少なくとも1つの硬質層が、前記少なくとも1つの圧縮性の層の弾性率の少なくとも3倍の弾性率を有し、
前記少なくとも1つの硬質層が、前記拡散媒体基板の全厚さの70%以下の厚さを有する、多層拡散媒体基板。 - 微細多孔層を前記少なくとも1つの圧縮性の層上にさらに備える、請求項30に記載の拡散媒体基板。
- 前記少なくとも1つの硬質層が炭素繊維紙層を備える、請求項30に記載の拡散媒体基板。
- 前記炭素繊維紙層が湿式型炭素繊維層である、請求項32に記載の拡散媒体基板。
- 前記少なくとも1つの圧縮性の層が炭素繊維層を備える、請求項32に記載の拡散媒体基板。
- 前記炭素繊維層が乾式型炭素繊維層である、請求項34に記載の拡散媒体基板。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/180,423 | 2005-07-13 | ||
US11/180,423 US8354199B2 (en) | 2005-07-13 | 2005-07-13 | Multi-layer diffusion medium substrate |
PCT/US2006/024954 WO2007008402A2 (en) | 2005-07-13 | 2006-06-27 | Multi-layer diffusion medium substrate |
Publications (2)
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JP (1) | JP5121709B2 (ja) |
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JP2014206395A (ja) * | 2013-04-11 | 2014-10-30 | トヨタ自動車株式会社 | 拡散層の撓み量、および、面圧値の測定方法 |
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KR20080105255A (ko) * | 2007-05-30 | 2008-12-04 | 현대자동차주식회사 | 전기전도도가 향상된 5-레이어 mea 제조 방법 |
US20080299418A1 (en) * | 2007-06-04 | 2008-12-04 | Gm Global Technology Operations, Inc. | Fuel Cell Stack with Improved End Cell Performance |
US20100028750A1 (en) * | 2008-08-04 | 2010-02-04 | Gm Global Technology Operations, Inc. | Gas diffusion layer with lower gas diffusivity |
US20100028744A1 (en) * | 2008-08-04 | 2010-02-04 | Gm Global Technology Operations, Inc. | Gas diffusion layer with lower gas diffusivity |
CN102694143A (zh) * | 2012-06-06 | 2012-09-26 | 清华大学 | 一种空气/钒液流电池 |
FR2999341B1 (fr) * | 2012-12-10 | 2015-02-06 | Commissariat Energie Atomique | Cellule pour pile a combustible a membrane echangeuse de protons, avec des couches de diffusion gazeuse de rigidite differente a l'anode et a la cathode |
JP5954506B1 (ja) * | 2014-10-17 | 2016-07-20 | 東レ株式会社 | 炭素シート、ガス拡散電極基材、および燃料電池 |
CA2997688C (en) * | 2015-10-22 | 2023-12-19 | Toray Industries, Inc. | Carbon sheet, gas diffusion electrode substrate, wound body, and fuel cell |
US12014971B2 (en) * | 2021-06-01 | 2024-06-18 | Nxp Usa, Inc. | Thermal interface structures, electrical systems with thermal interface structures, and methods of manufacture thereof |
DE102021209217A1 (de) * | 2021-08-23 | 2023-02-23 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Herstellung einer Gasdiffusionsschicht |
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US20070015042A1 (en) | 2007-01-18 |
WO2007008402A3 (en) | 2009-04-23 |
JP5121709B2 (ja) | 2013-01-16 |
WO2007008402A2 (en) | 2007-01-18 |
CN101501904A (zh) | 2009-08-05 |
DE112006001846B4 (de) | 2023-05-04 |
DE112006001846T5 (de) | 2008-05-15 |
CN101501904B (zh) | 2013-05-08 |
US8354199B2 (en) | 2013-01-15 |
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