JP5384515B2 - 2種の親水性を持つ燃料電池用電極及びその製造方法、並びにそれを含む膜電極接合体及び燃料電池 - Google Patents
2種の親水性を持つ燃料電池用電極及びその製造方法、並びにそれを含む膜電極接合体及び燃料電池 Download PDFInfo
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- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
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- H—ELECTRICITY
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- H01M4/00—Electrodes
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- H01M4/8636—Inert electrodes with catalytic activity, e.g. for fuel cells with a gradient in another property than porosity
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- H01M4/88—Processes of manufacture
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- H—ELECTRICITY
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- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8825—Methods for deposition of the catalytic active composition
- H01M4/8828—Coating with slurry or ink
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- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/92—Metals of platinum group
- H01M4/921—Alloys or mixtures with metallic elements
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- H—ELECTRICITY
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- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- 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
- H01M4/926—Metals of platinum group supported on carriers, e.g. powder carriers on carbon or graphite
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M8/0263—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant having meandering or serpentine paths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2457—Grouping of fuel cells, e.g. stacking of fuel cells with both reactants being gaseous or vaporised
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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
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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
- 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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- Engineering & Computer Science (AREA)
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- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Materials Engineering (AREA)
- Inert Electrodes (AREA)
- Fuel Cell (AREA)
Description
アノード電極:H2→2H++2e−
カソード電極:1/2O2+2H++2e−→H2O
全体反応式:H2+1/2O2→H2O
Claims (8)
- 燃料電池用電極であって、
流路を持つセパレーターに接する気体拡散層と、及び前記気体拡散層と電解質膜との間に介在される触媒層とを備えてなるものであり、
前記触媒層が、親水性の相異なる2つの部分を備えてなり、前記触媒層において、前記流路に対向する部分が前記流路に対向しない部分より親水性が高いものであり、
前記触媒層で前記流路に対向する部分が、金属触媒または炭素系支持体に担持された金属触媒;ポリマーイオノマー;及び親水性向上剤を含んでなり、
重量比で、前記金属触媒:前記親水性向上剤が1:0.05〜1であり、
前記親水性向上剤が、TiO 2 、SiO 2 、ゼオライト、ジルコニア、セリア、酸処理されたセラミック粒子またはカーボン、親水性高分子、及びAl 2 O 3 からなる群より選択される一種又は二種以上の混合物であり、
前記触媒層における前記流路に対向しない部分が、金属触媒または炭素系支持体に担持された金属触媒、及びポリマーイオノマーを含んでなることを特徴とする、燃料電池用電極。 - 前記触媒層における親水性が相異なる部分が、水接触角の差が2゜〜20゜であることを特徴とする、請求項1に記載の燃料電池用電極。
- 前記燃料電池が、相対湿度が0〜70%である低加湿条件で運転されることを特徴とする、請求項1又は2に記載の燃料電池用電極。
- 燃料電池用電極の製造方法であって、
(S1)(a)金属触媒または炭素系支持体に担持された金属触媒、ポリマーイオノマー、及び溶媒を含んでなる第1触媒層形成用インクと、及び(b)金属触媒または炭素系支持体に担持された金属触媒、ポリマーイオノマー、親水性向上剤、及び溶媒を含んでなる第2触媒層形成用インクをそれぞれ製造する段階と、
(S2)前記第1触媒層形成用インクが流路に対向しない部分に噴射され、前記第2触媒層形成用インクが流路に対向する部分に噴射されるように、前記第1触媒層形成用インク及び第2触媒層形成用インクをそれぞれインクジェット方式で電解質膜または気体拡散層に噴射して触媒層を形成する段階とを含んでなり、
(S1)において、重量比で、前記金属触媒:前記親水性向上剤が1:0.05〜1であり、
前記第2触媒層形成用インクの親水性向上剤が、TiO 2 、SiO 2 、ゼオライト、ジルコニア、セリア、酸処里されたセラミック粒子またはカーボン、親水性高分子、及びAl 2 O 3 からなる群より選択される何れかの一種又は二種以上の混合物であることを特徴とする、燃料電池用電極の製造方法。 - 前記燃料電池用電極が、前記触媒層の前記流路に対向する部分と前記流路に対向しない部分との水接触角の差が2゜〜20゜であることを特徴とする、請求項4に記載の燃料電池用電極の製造方法。
- 前記燃料電池が、相対湿度が0〜70%である低加湿条件で運転されることを特徴とする、請求項4又は5に記載の燃料電池用電極の製造方法。
- 燃料電池用膜電極接合体であって、
電解質膜と、アノード電極と、及びカソード電極とを備えてなり、
前記アノード電極及び前記カソード電極が、前記電解質膜を介在して形成されてなり、それぞれ触媒層及び気体拡散層を備えてなるものであり、
前記電極が、請求項1〜3の何れか一項に記載の燃料電池用電極であることを特徴とする、燃料電池用膜電極接合体。 - 請求項7に記載の少なくとも一つの膜電極接合体及び前記膜電極接合体の間に介在されるセパレーターを含むスタックと、
燃料を前記スタックに供給する燃料供給部と、並びに
酸化剤を前記スタックに供給する酸化剤供給部とを備えてなることを特徴とする、燃料電池。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2007-0140568 | 2007-12-28 | ||
KR1020070140568A KR101012207B1 (ko) | 2007-12-28 | 2007-12-28 | 두 종류의 친수성을 갖는 연료전지용 전극 및 그제조방법과 이를 포함하는 막전극 접합체 및 연료전지 |
PCT/KR2008/007615 WO2009084846A2 (en) | 2007-12-28 | 2008-12-23 | Electrode for fuel cell having two kinds of hydrophilicity and method for preparing the same and membrane electrode assembly and fuel cell comprising the same |
Publications (2)
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JP2011505677A JP2011505677A (ja) | 2011-02-24 |
JP5384515B2 true JP5384515B2 (ja) | 2014-01-08 |
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JP2010536860A Active JP5384515B2 (ja) | 2007-12-28 | 2008-12-23 | 2種の親水性を持つ燃料電池用電極及びその製造方法、並びにそれを含む膜電極接合体及び燃料電池 |
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US (1) | US20110020724A1 (ja) |
EP (1) | EP2235771B1 (ja) |
JP (1) | JP5384515B2 (ja) |
KR (1) | KR101012207B1 (ja) |
CN (2) | CN104282919A (ja) |
TW (1) | TWI384676B (ja) |
WO (1) | WO2009084846A2 (ja) |
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KR101112693B1 (ko) * | 2009-09-29 | 2012-02-15 | 한국에너지기술연구원 | 연료전지용 막전극 접합체 및 이의 제조방법 |
JP5223849B2 (ja) | 2009-11-27 | 2013-06-26 | トヨタ自動車株式会社 | 燃料電池 |
KR102131483B1 (ko) * | 2016-11-29 | 2020-07-07 | 주식회사 엘지화학 | 막 전극 접합체, 연료 전지 및 막 전극 접합체의 제조방법 |
KR102299218B1 (ko) * | 2019-11-28 | 2021-09-08 | 한국과학기술연구원 | 이오노머-이오노머 지지체 복합체, 이의 제조방법 및 상기 이오노머-이오노머 지지체 복합체를 포함하는 연료전지용 촉매 전극 |
CN111129508B (zh) * | 2019-12-17 | 2021-07-02 | 一汽解放汽车有限公司 | 一种过渡金属掺杂的铂碳催化剂及其制备方法和用途 |
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- 2008-12-23 EP EP08867095.5A patent/EP2235771B1/en active Active
- 2008-12-23 CN CN201410491847.4A patent/CN104282919A/zh active Pending
- 2008-12-23 WO PCT/KR2008/007615 patent/WO2009084846A2/en active Application Filing
- 2008-12-23 US US12/810,264 patent/US20110020724A1/en not_active Abandoned
- 2008-12-23 CN CN2008801231595A patent/CN101911351A/zh active Pending
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Publication number | Publication date |
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EP2235771B1 (en) | 2014-11-26 |
US20110020724A1 (en) | 2011-01-27 |
EP2235771A4 (en) | 2012-08-08 |
TWI384676B (zh) | 2013-02-01 |
CN101911351A (zh) | 2010-12-08 |
CN104282919A (zh) | 2015-01-14 |
KR20090072453A (ko) | 2009-07-02 |
TW200937710A (en) | 2009-09-01 |
WO2009084846A3 (en) | 2009-10-08 |
KR101012207B1 (ko) | 2011-02-08 |
WO2009084846A2 (en) | 2009-07-09 |
EP2235771A2 (en) | 2010-10-06 |
JP2011505677A (ja) | 2011-02-24 |
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