JP6535012B2 - 固体酸化物形燃料電池用空気極集電体及びこれを含む固体酸化物形燃料電池 - Google Patents
固体酸化物形燃料電池用空気極集電体及びこれを含む固体酸化物形燃料電池 Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
- H01M8/0232—Metals or alloys
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- H01—ELECTRIC ELEMENTS
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- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/08—Perforated or foraminous objects, e.g. sieves
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
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- C—CHEMISTRY; METALLURGY
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
- C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
- C25D5/50—After-treatment of electroplated surfaces by heat-treatment
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- C—CHEMISTRY; METALLURGY
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/54—Electroplating of non-metallic surfaces
- C25D5/56—Electroplating of non-metallic surfaces of plastics
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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
- H01M4/8605—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
- 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
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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
- H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
- H01M2004/8689—Positive electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- 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
-
- 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
- H01M8/023—Porous and characterised by the material
- H01M8/0236—Glass; Ceramics; Cermets
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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
Description
金属フォーム(foam)製造
1.CoNiフォーム(foam)製造
ポリウレタンフォーム(foam)の表面にPVD方法でNiを蒸着した後、その上に5:5(発明例1)、9:1(発明例2)のCo:Niで電気めっきを行った。その後、500〜1000℃で還元熱処理してウレタンフォームを除去することにより、CoNiフォーム(foam)を製造した。
電気めっき時にNiめっきを行ったことを除いて、上記CoNiフォーム製造と同一の方法で製造した。
金属フォーム(foam)の性能評価
1.CoNiフォーム(foam)の面抵抗(area specific resistance、ASR)測定
上記実施例1で製造した発明例1及び2のCoNiフォームに対して800℃で1500時間ASR測定を行い、その結果を図2に示した。
発明例2のCoNi金属フォームとの比較のために製造したNiフォームの収縮率を測定し、その結果を図4に示した。上記Niフォームは主に燃料極集電体として用いられる。
CoNiフォーム(foam)を空気極集電体として用いた固体酸化物形燃料電池の性能評価
上記実施例1で製造した発明例2のCoNiフォーム(foam)を空気極集電体として用いた固体酸化物形燃料電池スタックの単位電池(100cm2)の出力及び長期劣化率の評価結果を図5及び6に示した。このとき、燃料電池の運転温度は750℃であり、既存の伝導性セラミックペーストを空気極集電体として用いた場合と、本発明によるCoNiフォーム(foam)を空気極集電体として用いた場合の結果を共に測定して比較・分析した。
2 燃料極
3 空気極
4 空気極集電体
5 分離板リブ
6 空気極流路
7 分離板
Claims (5)
- 700℃以上の作動温度を有する固体酸化物形燃料電池用空気極集電体であって、
前記空気極集電体は気孔を有する多孔性の金属フォーム(foam)であり、
前記金属フォーム(foam)はCoMn及びCuMnからなる2元系合金のうち1種又は2種又はCoNiMn及びCoCuMnからなる3元系合金のうち1種又は2種からなり、
前記固体酸化物形燃料電池の作動温度で酸化されて電気伝導性セラミックに変形される合金である、固体酸化物形燃料電池用空気極集電体。 - 前記金属フォーム(foam)をなすCo、Cu及びMnはモル比でCo:Mn及びCu:Mn=1:9〜9:1の組成を有する、請求項1に記載の固体酸化物形燃料電池用空気極集電体。
- 前記金属フォーム(foam)は200〜1000g/m2の密度を有する、請求項1に記載の固体酸化物形燃料電池用空気極集電体。
- 空気極、燃料極、電解質及び分離板を含み、700℃以上の作動温度を有する固体酸化物形燃料電池の空気極集電体の製造方法であって、
高分子フォーム(foam)を準備する段階と、前記高分子フォーム(foam)の表面に金属を蒸着する段階と、前記蒸着された金属の上部にCo、Cu、Ni及びMnのうち2種以上の混合金属をコーティングする段階と、前記コーティング後、還元熱処理する段階と、前記還元熱処理後、高分子フォーム(foam)を除去して金属フォーム(foam)を製造する段階と、からなり、
前記金属フォーム(foam)はCoMn、CuMn、CoNiMn及びCoCuMnのうち1種以上からなり、前記固体酸化物形燃料電池の作動温度で酸化されて電気伝導性セラミックに変形される合金である、固体酸化物形燃料電池用空気極集電体の製造方法。 - 空気極、燃料極、電解質及び分離板を含む固体酸化物形燃料電池であって、
前記空気極と分離板の間には空気極集電体をさらに含み、前記空気極集電体は気孔を有する多孔性の金属フォーム(foam)であり、前記金属フォーム(foam)はCoMn及びCuMnからなる2元系合金のうち1種又は2種又はCoNiMn及びCoCuMnからなる3元系合金のうち1種又は2種からなり、700℃以上の固体酸化物形燃料電池の作動温度で酸化されて電気伝導性セラミックに変形される合金である、固体酸化物形燃料電池。
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KR1020130164503A KR101807781B1 (ko) | 2013-12-26 | 2013-12-26 | 고체산화물 연료전지용 공기극 집전체 및 이를 포함하는 고체산화물 연료전지 |
KR10-2013-0164503 | 2013-12-26 | ||
PCT/KR2014/012812 WO2015099449A1 (ko) | 2013-12-26 | 2014-12-24 | 고체산화물 연료전지용 공기극 집전체 및 이를 포함하는 고체산화물 연료전지 |
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JP2017507452A JP2017507452A (ja) | 2017-03-16 |
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US (1) | US10249885B2 (ja) |
EP (1) | EP3089250B1 (ja) |
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KR (1) | KR101807781B1 (ja) |
CN (1) | CN106030878A (ja) |
WO (1) | WO2015099449A1 (ja) |
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JP7355034B2 (ja) * | 2019-05-22 | 2023-10-03 | 住友電気工業株式会社 | 多孔体、それを含む燃料電池、およびそれを含む水蒸気電解装置 |
WO2020235267A1 (ja) * | 2019-05-22 | 2020-11-26 | 住友電気工業株式会社 | 多孔体、それを含む燃料電池、およびそれを含む水蒸気電解装置 |
WO2020235266A1 (ja) * | 2019-05-22 | 2020-11-26 | 住友電気工業株式会社 | 多孔体、それを含む燃料電池、およびそれを含む水蒸気電解装置 |
US20220416255A1 (en) * | 2019-12-24 | 2022-12-29 | Sumitomo Electric Industries, Ltd. | Porous body and fuel cell including the same |
JP7314940B2 (ja) * | 2019-12-24 | 2023-07-26 | 住友電気工業株式会社 | 多孔体、およびそれを含む燃料電池 |
CN111621806A (zh) * | 2020-04-28 | 2020-09-04 | 北京科技大学 | 异型集电器、pem电解水制氢装置及电解水制氢的方法 |
CN111593379B (zh) * | 2020-06-09 | 2023-05-09 | 南昌大学 | 一种电镀法制备(Ni,Co,Cu)3O4尖晶石涂层的方法及其应用 |
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