JP2014232691A - 燃料電池用ガス拡散体及びその製造方法 - Google Patents
燃料電池用ガス拡散体及びその製造方法 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
【解決手段】ガス拡散体22は、表面から厚さ方向中心位置に向けて撥水剤の単位体積当たり量を増加させた撥水剤分布を有する。また、かかるガス拡散体22は、撥水剤の分散した液体を含浸させた多孔質基体を減圧下で少なくとも室温よりも高い第1温度まで加熱・保持する撥水剤分布固定ステップと、多孔質基体を第1温度よりも高い第2温度に加熱・保持する焼成ステップとを含む製造ステップで得られる。
【選択図】図2
Description
(アノード極) 2H2 → 4H++4e-
(カソード極) O2+4H++4e- → 2H2O
を与える。ここで、アノード極で生成したH+は、電解質膜10を透過してカソード極に供給されるとともに、電子e-が外部回路を通ってカソード極に供給されることで電池を構成するのである。
10 電解質膜
20 電極触媒層
22 ガス拡散層(GDL)
24 セパレータ
Claims (5)
- 固体高分子形燃料電池用のガス拡散体であって、表面から厚さ方向中心位置に向けて撥水剤の単位体積当たり量を増加させた撥水剤分布を有することを特徴とする燃料電池用ガス拡散体。
- 前記撥水剤分布は、前記厚さ方向中心位置を挟んで前記撥水剤の単位体積当たり量の一定領域を有することを特徴とする請求項1記載の燃料電池用ガス拡散体。
- 固体高分子形燃料電池用のガス拡散体の製造方法であって、
撥水剤の分散した液体を含浸させた多孔質基体を減圧下で少なくとも室温よりも高い第1温度まで加熱・保持する撥水剤分布固定ステップと、
前記多孔質基体を前記第1温度よりも高い第2温度に加熱・保持する焼成ステップと、を含み、
前記多孔質基体にその表面から厚さ方向中心位置に向けて前記撥水剤の単位体積当たり量を増加させた撥水剤分布を与えることを特徴とする燃料電池用ガス拡散体の製造方法。 - 前記撥水剤分布は、前記厚さ方向中心位置を挟んで前記撥水剤の単位体積当たり量の一定領域を有することを特徴とする請求項3に記載の燃料電池用ガス拡散体の製造方法。
- 前記撥水剤分布固定ステップは、前記多孔質基体を減圧下に放置する均一化ステップを含み、前記第1温度まで加熱することを特徴とする請求項4記載の燃料電池用ガス拡散体の製造方法。
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016060045A1 (ja) * | 2014-10-17 | 2016-04-21 | 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 |
WO2017110691A1 (ja) * | 2015-12-24 | 2017-06-29 | 東レ株式会社 | ガス拡散電極およびその製造方法 |
WO2017110692A1 (ja) * | 2015-12-24 | 2017-06-29 | 東レ株式会社 | ガス拡散電極および燃料電池 |
US10818934B2 (en) | 2015-12-24 | 2020-10-27 | Toray Industries, Inc. | Gas diffusion electrode |
CN112973690A (zh) * | 2019-12-17 | 2021-06-18 | 山东工业陶瓷研究设计院有限公司 | Cu-Fe系催化剂负载方法及其负载的催化体 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008300195A (ja) * | 2007-05-31 | 2008-12-11 | Toyota Motor Corp | 燃料電池用拡散層の製造方法及び燃料電池の製造方法 |
JP2010050001A (ja) * | 2008-08-22 | 2010-03-04 | Toyota Motor Corp | 燃料電池用の拡散層の製造方法 |
JP2013065413A (ja) * | 2011-09-15 | 2013-04-11 | Toyota Motor Corp | 燃料電池 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008300195A (ja) * | 2007-05-31 | 2008-12-11 | Toyota Motor Corp | 燃料電池用拡散層の製造方法及び燃料電池の製造方法 |
JP2010050001A (ja) * | 2008-08-22 | 2010-03-04 | Toyota Motor Corp | 燃料電池用の拡散層の製造方法 |
JP2013065413A (ja) * | 2011-09-15 | 2013-04-11 | Toyota Motor Corp | 燃料電池 |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016060045A1 (ja) * | 2014-10-17 | 2016-04-21 | 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 |
JP7129751B2 (ja) | 2014-10-17 | 2022-09-02 | 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 |
EP3228588B1 (en) | 2014-10-17 | 2020-04-29 | Toray Industries, Inc. | Carbon sheet, gas diffusion electrode base material, and fuel cell |
CN108541350A (zh) * | 2015-12-24 | 2018-09-14 | 东丽株式会社 | 气体扩散电极及其制造方法 |
US10818934B2 (en) | 2015-12-24 | 2020-10-27 | Toray Industries, Inc. | Gas diffusion electrode |
JPWO2017110692A1 (ja) * | 2015-12-24 | 2018-10-11 | 東レ株式会社 | ガス拡散電極および燃料電池 |
JPWO2017110691A1 (ja) * | 2015-12-24 | 2018-11-29 | 東レ株式会社 | ガス拡散電極およびその製造方法 |
EP3396755A4 (en) * | 2015-12-24 | 2019-08-07 | Toray Industries, Inc. | GAS DIFFUSION ELECTRODE AND FUEL CELL |
WO2017110692A1 (ja) * | 2015-12-24 | 2017-06-29 | 東レ株式会社 | ガス拡散電極および燃料電池 |
US10790516B2 (en) | 2015-12-24 | 2020-09-29 | Toray Industries, Inc. | Gas diffusion electrode and method for manufacturing same |
CN108370040A (zh) * | 2015-12-24 | 2018-08-03 | 东丽株式会社 | 气体扩散电极和燃料电池 |
CN108541350B (zh) * | 2015-12-24 | 2020-12-11 | 东丽株式会社 | 气体扩散电极及其制造方法 |
US10950868B2 (en) | 2015-12-24 | 2021-03-16 | Toray Industries, Inc. | Gas diffusion electrode and fuel cell |
WO2017110691A1 (ja) * | 2015-12-24 | 2017-06-29 | 東レ株式会社 | ガス拡散電極およびその製造方法 |
CN108370040B (zh) * | 2015-12-24 | 2021-09-10 | 东丽株式会社 | 气体扩散电极和燃料电池 |
CN112973690A (zh) * | 2019-12-17 | 2021-06-18 | 山东工业陶瓷研究设计院有限公司 | Cu-Fe系催化剂负载方法及其负载的催化体 |
CN112973690B (zh) * | 2019-12-17 | 2023-09-29 | 山东工业陶瓷研究设计院有限公司 | Cu-Fe系催化剂负载方法及其负载的催化体 |
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