JP5746309B2 - 固体酸化物燃料電池の電極用ペースト、これを用いる固体酸化物燃料電池およびその製造方法 - Google Patents
固体酸化物燃料電池の電極用ペースト、これを用いる固体酸化物燃料電池およびその製造方法 Download PDFInfo
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- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
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- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
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- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous electrodes
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous electrodes
- H01M4/8621—Porous electrodes containing only metallic or ceramic material, e.g. made by sintering or sputtering
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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
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
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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
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
- H01M4/8668—Binders
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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
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
- H01M4/8882—Heat treatment, e.g. drying, baking
- H01M4/8885—Sintering or firing
- H01M4/8889—Cosintering or cofiring of a catalytic active layer with another type of layer
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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
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
- H01M4/9025—Oxides specially used in fuel cell operating at high temperature, e.g. SOFC
- H01M4/9033—Complex oxides, optionally doped, of the type M1MeO3, M1 being an alkaline earth metal or a rare earth, Me being a metal, e.g. perovskites
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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
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9041—Metals or alloys
- H01M4/905—Metals or alloys specially used in fuel cell operating at high temperature, e.g. SOFC
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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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/1213—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
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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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
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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
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- Y02E60/30—Hydrogen technology
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- Sustainable Development (AREA)
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- Inert Electrodes (AREA)
Description
酸化ニッケル粉末と8%のイットリア安定化ジルコニアが6:4の重量比で含有された原料粉末に対して、0〜20重量%の気孔形成剤としてエチレングリコールを混合し、前記混合物100重量部に対して成形補助剤である10重量部の結合剤としてPVB、4重量部の可塑剤としてジオクチルフタレート(Dioctyl Phthalate)、2重量部の分散剤としてBYK2155を混合した後、前記混合物をトルエンとエチルアルコールを5:5で混ぜた溶媒で湿式混合した。
20 コーティング膜
30 基質
Claims (11)
- 燃料電極、電解質層および空気電極が順次積層された燃料電極支持型の固体酸化物燃料電池の電極用ペーストであって、
前記ペーストが、原料粉末、分散剤、結合剤、溶媒および10重量%超の液相気孔形成剤からなる、固体酸化物燃料電池の電極用ペーストにおいて、
前記液相気孔形成剤が、グリコール系有機溶剤である固体酸化物燃料電池の電極用ペースト。 - 前記液相気孔形成剤は、沸点が120℃以上であり、分子量が180以下であるグリコール系有機溶剤であることを特徴とする、請求項1に記載の固体酸化物燃料電池の電極用ペースト。
- 前記ペーストは、10〜90重量%の原料粉末、0.2〜5重量%の分散剤、1〜20重量%の結合剤、5〜70重量%の溶媒および最大35重量%の液相気孔形成剤からなることを特徴とする、請求項1に記載の固体酸化物燃料電池の電極用ペースト。
- 前記グリコール系有機溶剤は、エチレングリコールまたはプロピレングリコールであることを特徴とする、請求項2に記載の固体酸化物燃料電池の電極用ペースト。
- 前記原料粉末は、燃料極の場合、NiO−YSZ、NiO−ScSZまたはNiO−GDCであり、空気極の場合、ランタン−ストロンチウム−マンガン酸化物(LSM)、ランタン−ストロンチウム−コバルト−フェライト酸化物(LSCF)またはランタン−ストロンチウム−コバルト−マンガン酸化物(LSCM)であり、前記分散剤は、リン酸系分散剤またはα−テルピネオール(α−terpineol)であり、前記結合剤は、エチルセルロース(Ethyl Cellulose)またはポリビニルブチラール(PVB)であり、前記溶媒は、イソプロピルアルコール(Isopropyl alcohol)、エチルアルコール(Ethyl alcohol)、トルエン(Toluene)またはこれらの2種以上の混合物であることを特徴とする、請求項1に記載の固体酸化物燃料電池の電極用ペースト。
- 原料粉末、分散剤、結合剤、溶媒および10重量%超の液相気孔形成剤からなるペーストを塗布して燃料電極支持体を形成する段階と、
前記燃料電極支持体上に電解質層を形成する段階と、
前記燃料電極支持体および電解質層からなる構造物を焼成する段階と、
前記電解質層上に空気電極を形成した後、これを焼成する段階と、を含む、固体酸化物燃料電池の製造方法において、
前記液相気孔形成剤が、グリコール系有機溶剤である固体酸化物燃料電池の製造方法。 - 前記液相気孔形成剤は、沸点が120℃以上であり、分子量が180以下であるグリコール系有機溶剤であることを特徴とする、請求項6に記載の固体酸化物燃料電池の製造方法。
- 前記ペーストは、10〜90重量%の原料粉末、0.2〜5重量%の分散剤、1〜20重量%の結合剤、5〜70重量%の溶媒および最大35重量%の液相気孔形成剤からなることを特徴とする、請求項6に記載の固体酸化物燃料電池の製造方法。
- 前記グリコール系有機溶剤は、エチレングリコールまたはプロピレングリコールであることを特徴とする、請求項7に記載の固体酸化物燃料電池の製造方法。
- 前記原料粉末は、燃料極の場合、NiO−YSZ、NiO−ScSZまたはNiO−GDCであり、空気極の場合、ランタン−ストロンチウム−マンガン酸化物(LSM)、ランタン−ストロンチウム−コバルト−フェライト酸化物(LSCF)またはランタン−ストロンチウム−コバルト−マンガン酸化物(LSCM)であり、前記分散剤は、リン酸系分散剤またはα−テルピネオールであり、前記結合剤は、エチルセルロースまたはポリビニルブチラルであり、前記溶媒は、イソプロピルアルコール、エチルアルコール、トルエンまたはこれらの2種以上の混合物であることを特徴とする、請求項6に記載の固体酸化物燃料電池の製造方法。
- 請求項6に記載の製造方法により形成される固体酸化物燃料電池であって、
0.4〜1mmの厚さを有する多孔性燃料電極支持体、5〜20μmの厚さを有する電解質層および10〜80μmの厚さを有する多孔性空気電極が順次積層されてなり、前記多孔性空気電極の気孔率が10%〜30%である、固体酸化物燃料電池。
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KR20120147556 | 2012-12-17 | ||
KR10-2012-0147556 | 2012-12-17 |
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CN104157885A (zh) * | 2014-08-19 | 2014-11-19 | 大连理工大学 | 一种高孔隙率长孔道固体氧化物燃料电池电极的制备方法 |
US10615420B2 (en) | 2015-09-18 | 2020-04-07 | Lg Chem, Ltd. | Electrode slurry of solid oxide fuel cell, green sheet for electrode of solid oxide fuel cell, electrode of solid oxide fuel cell, and method for manufacturing solid oxide fuel cell and electrode of solid oxide fuel cell |
US20180200695A1 (en) * | 2017-01-18 | 2018-07-19 | Saudi Arabian Oil Company | Structured catalysts for pre-reforming hydrocarbons |
CN114361543A (zh) * | 2022-01-06 | 2022-04-15 | 徐州华清京昆能源有限公司 | 一种高平整度低应力固体氧化物燃料电池的制备方法 |
KR20220093053A (ko) * | 2022-06-16 | 2022-07-05 | 한국세라믹기술원 | 초음파 스프레이법을 이용 미세구조 제어를 통한 고활성 전극, 이의 제조방법 및 이를 포함하는 고체산화물 연료전지 |
US20240178407A1 (en) * | 2022-11-30 | 2024-05-30 | Samsung Electro-Mechanics Co., Ltd. | Manufacturing method of solid oxide cell |
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GB0217794D0 (en) * | 2002-08-01 | 2002-09-11 | Univ St Andrews | Fuel cell electrodes |
KR100717130B1 (ko) * | 2005-09-30 | 2007-05-11 | 한국과학기술연구원 | 고체산화물 연료전지용 페이스트, 이를 이용한 연료극지지형 고체산화물 연료전지 및 그 제조 방법 |
JP5044392B2 (ja) * | 2006-02-10 | 2012-10-10 | 株式会社日本触媒 | 固体酸化物形燃料電池用空気極材料 |
US8343686B2 (en) * | 2006-07-28 | 2013-01-01 | The Regents Of The University Of California | Joined concentric tubes |
JP2008257943A (ja) * | 2007-04-03 | 2008-10-23 | Mie Univ | 固体酸化物形燃料電池用電極及び該電極を有する固体酸化物形燃料電池 |
KR101699091B1 (ko) * | 2008-10-14 | 2017-01-23 | 유니버시티 오브 플로리다 리서치 파운데이션, 인크. | 저온 고체 산화물형 연료전지(sofc)에 사용되는 개선된 물질 및 설계 |
FR2948821B1 (fr) * | 2009-08-03 | 2011-12-09 | Commissariat Energie Atomique | Cellule electrochimique a metal support et son procede de fabrication |
FR2974452B1 (fr) * | 2011-04-22 | 2014-04-04 | Commissariat Energie Atomique | Procede de preparation d'une demi-cellule electrochimique |
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