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1. WO2007091642 - AIR ELECTRODE MATERIAL FOR SOLID OXIDE FUEL CELL

Publication Number WO/2007/091642
Publication Date 16.08.2007
International Application No. PCT/JP2007/052247
International Filing Date 08.02.2007
IPC
H01M 4/86 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
C04B 35/40 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01based on oxides
26based on ferrites
40with rare earth oxide
C04B 35/50 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
50based on rare earth compounds
H01M 8/12 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
12operating at high temperature, e.g. with stabilised ZrO2 electrolyte
CPC
H01M 2008/1293
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
12operating at high temperature, e.g. with stabilised ZrO2 electrolyte
1293Fuel cells with solid oxide electrolytes
H01M 4/9033
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
90Selection of catalytic material
9016Oxides, hydroxides or oxygenated metallic salts
9025Oxides specially used in fuel cell operating at high temperature, e.g. SOFC
9033Complex oxides, optionally doped, of the type M1MeO3, M1 being an alkaline earth metal or a rare earth, Me being a metal, e.g. perovskites
H01M 8/1253
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
12operating at high temperature, e.g. with stabilised ZrO2 electrolyte
124characterised by the process of manufacturing or by the material of the electrolyte
1246the electrolyte consisting of oxides
1253the electrolyte containing zirconium oxide
Y02E 60/50
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
30Hydrogen technology
50Fuel cells
Y02P 70/50
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
70Climate change mitigation technologies in the production process for final industrial or consumer products
50Manufacturing or production processes characterised by the final manufactured product
Applicants
  • 株式会社日本触媒 NIPPON SHOKUBAI CO., LTD. [JP]/[JP] (AllExceptUS)
  • 秦 和男 HATA, Kazuo [JP]/[JP] (UsOnly)
Inventors
  • 秦 和男 HATA, Kazuo
Agents
  • 植木 久一 UEKI, Kyuichi
Priority Data
2006-03430810.02.2006JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) AIR ELECTRODE MATERIAL FOR SOLID OXIDE FUEL CELL
(FR) MATERIAU POUR ELECTRODE A AIR UTILISEE DANS UNE PILE A COMBUSTIBLE A OXYDE SOLIDE
(JA) 固体酸化物形燃料電池用空気極材料
Abstract
(EN)
This invention provides an air electrode material for a fuel cell, which is superior in electrode activity persistence to conventional materials and has durability high enough to withstand even repeating heat history between room temperature during stop of the operation and a high temperature above 700ºC during operation. The air electrode material for a solid oxide fuel cell is characterized by comprising a perovskite oxide represented by general formula (I): (PrxA1-x)(FeyB1-y)O3 ······ (I) wherein A represents an alkaline earth metal element or the like; B represents a group 7a element or the like; x is 0.5 ≤ x ≤ 1; and y is 0.5 ≤ y ≤ 1.
(FR)
La présente invention concerne un matériau d'électrode à air pour pile à combustible, ledit matériau offrant une persistance de l'activité d'électrode supérieure à celle des matériaux traditionnels et une durabilité suffisamment élevée pour supporter des cycles répétés de température entre la température ambiante (à l'arrêt) et une température dépassant 700 ºC (en fonctionnement). Le matériau d'électrode à air de l'invention est caractérisé en ce qu'il contient un oxyde pérovskite de formule générale (I) : (PrxA1-x)(FeyB1-y)O3 ······ (I), dans laquelle A représente un métal alcalino-terreux ou un élément similaire ; B représente un élément du groupe 7a ou un élément similaire ; x va de 0,5 à 1 ; et y va de 0,5 à 1.
(JA)
 本発明は、従来材よりも電極活性持続性に優れ、且つ、運転停止時の室温と稼動時の700°Cを超える高温の繰返し熱履歴にも耐える優れた耐久性を有する燃料電池用の空気極材料を提供することを目的とする。本発明の固体酸化物形燃料電池用空気極材料は、下記一般式(I)で表されるペロブスカイト型酸化物を含むことを特徴とする。  (Prx1-x)(Fey1-y)O3……(I) [式中、Aは、アルカリ土類金属元素等を示し;Bは、7a族元素等を示し;xは0.5≦x≦1;yは0.5≦y≦1を示す]
Also published as
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