JPH1173975A - Manufacture of cell of solid electrolyte fuel cell - Google Patents
Manufacture of cell of solid electrolyte fuel cellInfo
- Publication number
- JPH1173975A JPH1173975A JP9233441A JP23344197A JPH1173975A JP H1173975 A JPH1173975 A JP H1173975A JP 9233441 A JP9233441 A JP 9233441A JP 23344197 A JP23344197 A JP 23344197A JP H1173975 A JPH1173975 A JP H1173975A
- Authority
- JP
- Japan
- Prior art keywords
- solid electrolyte
- cell
- interconnector
- partial pressure
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- H01M8/124—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
- H01M8/1246—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides
-
- 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
- H01M8/2404—Processes or apparatus for grouping fuel cells
-
- 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
- H01M8/2425—High-temperature cells with solid electrolytes
- H01M8/2432—Grouping of unit cells of planar configuration
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0068—Solid electrolytes inorganic
- H01M2300/0071—Oxides
- H01M2300/0074—Ion conductive at high temperature
-
- 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
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0215—Glass; Ceramic materials
- H01M8/0217—Complex oxides, optionally doped, of the type AMO3, A being an alkaline earth metal or rare earth metal and M being a metal, e.g. perovskites
- H01M8/0219—Chromium complex oxides
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、固体電解質型燃料
電池のセルの製造方法に関する。The present invention relates to a method for manufacturing a cell of a solid oxide fuel cell.
【０００２】[0002]
【従来の技術】固体電解質型燃料電池は、固体電解質を
多孔質性の空気極および燃料極で挟んだ単素子を多孔質
性の基体上に上記燃料極を当接させるように複数配設
し、当該単素子間をインタコネクタで電気的に接続して
構成したセルを備えてなっている。2. Description of the Related Art In a solid oxide fuel cell, a plurality of single elements in which a solid electrolyte is sandwiched between a porous air electrode and a fuel electrode are arranged on a porous substrate such that the fuel electrode is in contact with the porous element. And a cell configured by electrically connecting the single elements with an interconnector.
【０００３】このようなセルは、燃料極、固体電解質、
空気極、インタコネクタの各材料のスラリを基体上にそ
れぞれ被覆した後、約１４００℃で一体的に焼結（スラ
リ一体焼結法）して成膜することにより製造される。Such a cell comprises an anode, a solid electrolyte,
It is manufactured by coating a slurry of each material of the air electrode and the interconnector on a substrate, and then sintering them integrally at about 1400 ° C. (slurry integrated sintering method) to form a film.
【０００４】このようなセルを備えた固体電解質型燃料
電池では、基体の外側に空気や酸素などの酸化ガスを流
通させ、基体の内側に水素やメタンなどの燃料ガスを流
通させる一方、温度を約８００〜１０００℃まで上昇さ
せると、燃料ガスが基体および燃料極を透過すると共
に、酸化ガスが空気極を透過して、これらガスが固体電
解質で電気化学的に反応し、電力を得ることができる。In a solid oxide fuel cell equipped with such a cell, an oxidizing gas such as air or oxygen flows through the outside of the base, and a fuel gas such as hydrogen or methane flows through the inside of the base. When the temperature is raised to about 800 to 1000 ° C., the fuel gas permeates the substrate and the fuel electrode, and the oxidizing gas permeates the air electrode, and these gases react electrochemically with the solid electrolyte to obtain electric power. it can.
【０００５】[0005]
【発明が解決しようとする課題】前述したような固体電
解質型燃料電池のセルにおいて、そのインタコネクタに
は、電子導電性はもちろんのこと、他の部材との作動雰
囲気下での未反応性および熱膨張率の同等性を始めとし
て、酸化雰囲気（酸化ガス）と還元雰囲気（燃料ガス）
との遮断性（緻密性）などが要求されるため、ＬａＣｒ
Ｏ3 系のペロブスカイト型酸化物が用いられている。し
かしながら、発電性能をさらに向上させるため、上記イ
ンタコネクタの緻密性（焼結密度）をさらに高めようと
すると、上記酸化物材料が難焼結性であることから、１
６００℃以上の温度で焼結しなければならず、他の部材
に熱的に悪影響を与えてしまうという問題を生じてい
た。In the solid electrolyte fuel cell described above, the interconnector has not only electronic conductivity but also non-reactivity under operating atmosphere with other members. Oxidizing atmosphere (oxidizing gas) and reducing atmosphere (fuel gas), including the equivalent thermal expansion coefficient
LaCr is required because of its high barrier property (density).
An O 3 -based perovskite oxide is used. However, in order to further increase the denseness (sintering density) of the interconnector in order to further improve the power generation performance, the oxide material is difficult to sinter.
Sintering must be performed at a temperature of 600 ° C. or more, which has a problem that other members are adversely affected thermally.
【０００６】このようなことから、本発明は、他の部材
に熱的に悪影響を与えることなくインタコネクタの緻密
性を向上させることができる固体電解質型燃料電池のセ
ルの製造方法を提供することを目的とした。In view of the above, the present invention provides a method for manufacturing a cell of a solid oxide fuel cell which can improve the denseness of an interconnector without thermally adversely affecting other members. Aimed at.
【０００７】[0007]
【課題を解決するための手段】前述した課題を解決する
ための、本発明による固体電解質型燃料電池のセルの製
造方法は、基体上に設けられた燃料極、固体電解質およ
び空気極からなる複数の単素子間をインタコネクタで電
気的に接続したセルをスラリ一体焼結法で製造する固体
電解質型燃料電池のセルの製造方法であって、当該セル
を低酸素分圧の気流中で一体焼結することを特徴とす
る。A method of manufacturing a cell of a solid oxide fuel cell according to the present invention, which solves the above-mentioned problems, comprises a plurality of cells comprising a fuel electrode, a solid electrolyte, and an air electrode provided on a substrate. A method for manufacturing a cell of a solid oxide fuel cell, wherein a cell in which single elements are electrically connected by an interconnector is manufactured by a slurry integrated sintering method, wherein the cell is integrally fired in a stream of low oxygen partial pressure. It is characterized by tying.
【０００８】[0008]
【発明の実施の形態】本発明による固体電解質型燃料電
池のセルの製造方法の実施の形態を図１を用いて説明す
る。なお、図１は、その方法により製造されたセルの要
部の概略構成図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for manufacturing a cell of a solid oxide fuel cell according to the present invention will be described with reference to FIG. FIG. 1 is a schematic configuration diagram of a main part of a cell manufactured by the method.
【０００９】図１において、１は基体、２は燃料極、３
は固体電解質、４は空気極、５はインタコネクタであ
る。In FIG. 1, 1 is a base, 2 is a fuel electrode, 3
Is a solid electrolyte, 4 is an air electrode, and 5 is an interconnector.
【００１０】基体１は、ジルコニア酸化物などからなる
多孔質体であり、板状または管状をなしている。燃料極
２は、基体１上に所定の間隔で複数成膜されている。固
体電解質３は、ＹＳＺ（イットリアで安定化させたジル
コニア）などからなり、燃料極２上にそれぞれ成膜され
ている。空気極４は、ペロブスカイト型複合酸化物から
なる多孔質体であり、固体電解質３上にそれぞれ成膜さ
れている。インタコネクタ５は、ＬａＣｒＯ3 系のペロ
ブスカイト型酸化物からなり、上記燃料極２、固体電解
質３、空気極４などからなる単素子間を電気的に接続す
るように当該単素子間にそれぞれ成膜されている。The base 1 is a porous body made of zirconia oxide or the like, and has a plate shape or a tubular shape. A plurality of fuel electrodes 2 are formed on the substrate 1 at predetermined intervals. The solid electrolyte 3 is made of YSZ (zirconia stabilized with yttria) or the like, and is formed on the fuel electrode 2 respectively. The air electrode 4 is a porous body made of a perovskite-type composite oxide, and is formed on the solid electrolyte 3. The interconnector 5 is made of a LaCrO 3 -based perovskite-type oxide, and a film is formed between the single elements such as the fuel electrode 2, the solid electrolyte 3, and the air electrode 4 so as to electrically connect the single elements. Have been.
【００１１】次に、このような構造をなすセルの本発明
に基づく製造方法を説明する。従来と同様に基体１上に
燃料極２、固体電解質３、空気極４、インタコネクタ５
の各材料のスラリを塗布した後、これを低酸素分圧の気
流中で従来と同様な温度（１４００℃）で一体的に焼結
することにより、緻密性（焼結密度）の高いインタコネ
クタ５を有するセルを得ることができる。Next, a method of manufacturing a cell having such a structure according to the present invention will be described. A fuel electrode 2, a solid electrolyte 3, an air electrode 4, an interconnector 5
After the slurry of each material is applied, it is integrally sintered at a temperature (1400 ° C.) similar to the conventional one in a low oxygen partial pressure airflow, so that an interconnector having high denseness (sintering density) is obtained. 5 can be obtained.
【００１２】すなわち、空気中で焼結すると、インタコ
ネクタ５は、ＬａＣｒＯ3 が下記の式に示すように酸素
と反応してＣｒＯ3 を生じて表面から蒸発拡散させなが
ら凝縮して焼結が進行することから、緻密化の程度が低
くなってしまうものの、低酸素分圧の気流中で焼結すれ
ば、ＬａＣｒＯ3 の酸素との反応が抑えられてＣｒＯ 3
の発生が低減し、緻密化が促進されるのである。That is, when sintering in air,
Nectar 5 is made of LaCrOThreeIs oxygen as shown in the following formula
Reacts with CrOThreeAnd cause evaporation and diffusion from the surface
And the sintering proceeds, the degree of densification is low.
Sintering in a low oxygen partial pressure air stream
For example, LaCrOThreeReaction with oxygen is suppressed and CrO Three
Is reduced, and densification is promoted.
【００１３】[0013]
【化１】ＬａＣｒＯ3 ＋ 3/4Ｏ2(g)＝ 0.5Ｌａ2 Ｏ3 ＋
ＣｒＯ3(g)## STR1 ## LaCrO 3 + 3 / 4O 2 (g) = 0.5 La 2 O 3 +
CrO 3 (g)
【００１４】したがって、このようなセルの製造方法に
よれば、他の部材に熱的に悪影響を与えることなくイン
タコネクタの緻密性を向上させることができる。Therefore, according to such a cell manufacturing method, it is possible to improve the denseness of the interconnector without adversely affecting other members thermally.
【００１５】なお、低酸素分圧気流には、５％水素−窒
素気流を適用するとよい。なぜなら、工業用の窒素ガス
中には、通常、１０-4〜１０-7ａｔｍ程度の酸素が含有
されているため、窒素ガス中に水素ガスを添加（５％程
度）することにより、窒素ガス中の酸素分圧をさらに低
減（１０-18 ａｔｍ程度）することができるからであ
る。The low oxygen partial pressure air stream is preferably a 5% hydrogen-nitrogen air stream. This is because industrial nitrogen gas usually contains about 10 -4 to 10 -7 atm of oxygen, and therefore, by adding hydrogen gas (about 5%) to nitrogen gas, nitrogen gas is added. This is because the oxygen partial pressure can be further reduced (about 10 −18 atm).
【００１６】[0016]
【実施例】本発明による固体電解質型燃料電池のセルの
製造方法の効果を確認するため、次のような試験を行っ
た。EXAMPLES In order to confirm the effect of the method for manufacturing a cell of a solid oxide fuel cell according to the present invention, the following test was conducted.
【００１７】［試験体の作製］図２に示すように、円筒
型（外径：２０ｍｍ，内径：１５ｍｍ，長さ２００ｍ
ｍ）をなす基体１１の外周面の長手方向中央部分（中心
から両端側へ各々５０ｍｍの範囲（計１００ｍｍ））に
インタコネクタ１５の材料のスラリを塗布すると共に、
当該基体１１の長手方向両端側（端部から中心へ５０ｍ
ｍ強の範囲）に固体電解質１３の材料のスラリを塗布し
た後、低酸素分圧（５％水素−窒素）の気流中、１４０
０℃で５時間一体焼結することにより、試験体Ｓ1 を作
製した。なお、基体１１、インタコネクタ１５の材料の
スラリ、固体電解質１３の材料のスラリは、以下のよう
にして作製した。[Preparation of Specimen] As shown in FIG. 2, cylindrical type (outer diameter: 20 mm, inner diameter: 15 mm, length: 200 m)
m), a slurry of the material of the interconnector 15 is applied to the central portion in the longitudinal direction of the outer peripheral surface of the base 11 (a range of 50 mm from the center to both ends (100 mm in total)),
Both ends in the longitudinal direction of the base 11 (50 m from the end to the center)
m), a slurry of the material of the solid electrolyte 13 is applied to the solid electrolyte 13 in a low oxygen partial pressure (5% hydrogen-nitrogen) gas stream.
By 5 hours integrally sintered at 0 ° C., to produce a test body S 1. In addition, the slurry of the material of the base 11, the interconnector 15, and the slurry of the material of the solid electrolyte 13 were produced as follows.
【００１８】＜基体１１＞ＺｒＯ2 とＣａＯとの粉体を
所定の割合（ＣａＯ：１５〜２０ｍｏｌ％）で混合し、
空気雰囲気中１５００℃で５時間焼成した後、この粉体
（ＣＳＺ）をボールミルで粉砕（中心粒径：約１０〜２
０μｍ）し、円筒型（外径：２０ｍｍ，内径：１５ｍ
ｍ，長さ２００ｍｍ）をなすようにバインダと共に成型
して基体１１を作製した。<Substrate 11> Powder of ZrO 2 and CaO is mixed at a predetermined ratio (CaO: 15 to 20 mol%),
After firing at 1500 ° C. for 5 hours in an air atmosphere, the powder (CSZ) is pulverized by a ball mill (central particle size: about 10 to 2).
0 μm) and cylindrical (outer diameter: 20 mm, inner diameter: 15 m)
m, length 200 mm) together with the binder to form the base 11.
【００１９】＜インタコネクタ１５の材料のスラリ＞Ａ
サイトＬａへのＳｒ置換量として１０ｍｏｌ％となるよ
うにＬａ，Ｓｒ，Ｃｒの各硝酸塩を秤量して蒸留水と共
に混合し、この水溶液を空気中１５０〜２００℃で加熱
して蒸発乾固させた後、空気中９００℃で５時間焼成す
ることにより、（Ｌａ0.9 Ｓｒ0.1 ）ＣｒＯ3 となる単
一のペロブスカイト型酸化物（平均粒径：０．５μｍ）
を得た。この粉体（１０wt％）と水（６０wt％）と分散
剤（３０wt％）とを混合攪拌することによりインタコネ
クタ１５の材料のスラリを作製した。<Slurry of Material of Interconnector 15> A
Each nitrate of La, Sr, and Cr was weighed and mixed with distilled water so that the amount of Sr substituted on site La was 10 mol%, and this aqueous solution was heated in air at 150 to 200 ° C. and evaporated to dryness. Thereafter, by firing in air at 900 ° C. for 5 hours, a single perovskite oxide (average particle size: 0.5 μm) that becomes (La 0.9 Sr 0.1 ) CrO 3 is obtained.
I got This powder (10 wt%), water (60 wt%) and dispersant (30 wt%) were mixed and stirred to produce a slurry of the material of the interconnector 15.
【００２０】＜固体電解質１３の材料のスラリ＞ＺｒＯ
2 とＹ2 Ｏ3 とを所定の割合（Ｙ2 Ｏ3 ：８ｍｏｌ％）
で混合し、この混合酸化物と（１０wt％）と水（６０wt
％）と分散剤（３０wt％）とを混合攪拌することにより
固体電解質１３の材料のスラリを作製した。<Slurry of Material of Solid Electrolyte 13> ZrO
2 and Y 2 O 3 at a predetermined ratio (Y 2 O 3 : 8 mol%)
And the mixed oxide, (10 wt%) and water (60 wt%)
%) And a dispersant (30 wt%) were mixed and stirred to produce a slurry of the material of the solid electrolyte 13.
【００２１】［比較体の作製］試験体Ｓ1 と同様な基体
１１に、試験体Ｓ1 と同様なインタコネクタ１５および
固体電解質１３の材料のスラリを試験体Ｓ1 の作製の場
合と同様にして塗布した後、空気中、１４００℃で５時
間一体焼結することにより、比較体Ｓ2 を作製した。[0021] Comparative of Preparation] Specimen S 1 and similar base 11, a slurry of the material of the specimen S 1 and similar interconnector 15 and the solid electrolyte 13 in the same manner as in the preparation of the test specimen S 1 after coating Te, in air, by 5 hours integrally sintered at 1400 ° C., to produce a comparison member S 2.
【００２２】［試験方法］図３に示すように、試験体Ｓ
1 の両端側に金属製のスリーブ１０１を取り付け、これ
を金属製の容器１０２内にセットし、水素ガス送給装置
１０３で一方のスリーブ１０１から試験体Ｓ1 の内側に
水素ガスを２００ｃｃ／ｍｉｎで送給すると共に、窒素
ガス送給装置１０４で容器１０２内に、すなわち、試験
体Ｓ1 の外側に窒素ガスを２００ｃｃ／ｍｉｎで送給
し、他方のスリーブ１０１に流出してくるガスの流量を
ガスメータ１０５で計測しながら当該ガスの組成をガス
クロマトグラフ１０６で分析する共に、容器１０２内か
ら外部に流出してくるガスの流量をガスメータ１０７で
計測しながら当該ガスの組成をガスクロマトグラフ１０
８で分析することにより、試験体Ｓ1 の内部から外部へ
漏出する水素リーク率を求めた。なお、比較体Ｓ2 にお
いても、上述と同様にして水素リーク率を求めた。[Test Method] As shown in FIG.
A metal sleeve 101 is attached to both ends of the sample 1 , this is set in a metal container 102, and hydrogen gas is supplied at 200 cc / min from one of the sleeves 101 to the inside of the test piece S 1 by a hydrogen gas supply device 103. in conjunction with feeding Kyusuru, the container 102 in a nitrogen gas feeder 104, i.e., feeds feeding a nitrogen gas at 200 cc / min to the outside of the specimen S 1, the flow rate of gas flowing out to the other sleeve 101 Is analyzed by a gas chromatograph 106 while measuring the gas composition by a gas meter 105, and the composition of the gas is measured by a gas chromatograph 10 while measuring the flow rate of the gas flowing out of the container 102 to the outside with a gas meter 107.
By analyzing at 8, to determine the hydrogen leak rate escaping from the inside to the outside of the specimen S 1. Also in comparison body S 2, was determined hydrogen leak rate in the same manner as described above.
【００２３】［試験結果］上述したようにして試験を行
ったところ、比較体Ｓ2 では、水素リーク率が約２５％
となるのに対し、試験体Ｓ1 では、水素リーク率が約
１．３％となり、比較体Ｓ2 の約１／２０となった。[0023] [Test Results] was tested as described above, in the comparative member S 2, the hydrogen leak rate of about 25%
Whereas the, in specimen S 1, next to hydrogen leak rate of about 1.3%, was about 1/20 of the comparison body S 2.
【００２４】以上のことから、低酸素分圧の気流中で一
体焼結することにより、焼結温度を上げることなくイン
タコネクタ（ＬａＣｒＯ3 系のペロブスカイト型酸化
物）の焼結密度を高めて緻密性を向上できることが確認
できた。As described above, by sintering integrally in an air stream having a low oxygen partial pressure, the sintering density of the interconnector (LaCrO 3 -based perovskite oxide) is increased without increasing the sintering temperature, and the density is increased. It was confirmed that the performance could be improved.
【００２５】[0025]
【発明の効果】本発明による固体電解質型燃料電池のセ
ルの製造方法では、基体上に設けられた燃料極、固体電
解質および空気極からなる複数の単素子間をインタコネ
クタで電気的に接続したセルをスラリ一体焼結法で製造
する固体電解質型燃料電池のセルの製造方法であって、
当該セルを低酸素分圧の気流中で一体焼結することか
ら、焼結温度を上げることなくインタコネクタの焼結密
度を高めることができるので、他の部材に熱的に悪影響
を与えることなくインタコネクタの緻密性を向上させる
ことができる。In the method for manufacturing a cell of a solid oxide fuel cell according to the present invention, a plurality of single elements comprising a fuel electrode, a solid electrolyte and an air electrode provided on a substrate are electrically connected by an interconnector. A method for manufacturing a cell of a solid oxide fuel cell, wherein the cell is manufactured by a slurry integrated sintering method,
Since the cell is integrally sintered in a low oxygen partial pressure airflow, the sintering density of the interconnector can be increased without increasing the sintering temperature, so that other members are not adversely affected thermally. The denseness of the interconnector can be improved.
【図１】本発明による固体電解質型燃料電池のセルの製
造方法の実施の形態により製造されたセルの要部の概略
構造図である。FIG. 1 is a schematic structural view of a main part of a cell manufactured by an embodiment of a method for manufacturing a cell of a solid oxide fuel cell according to the present invention.
【図２】効果確認試験に用いた試験体の概略構造図であ
る。FIG. 2 is a schematic structural view of a test body used for an effect confirmation test.
【図３】効果確認試験の説明図である。FIG. 3 is an explanatory diagram of an effect confirmation test.
１，１１ 基体 ２ 燃料極 ３，１３ 固体電解質 ４ 空気極 ５，１５ インタコネクタ １０１ スリーブ １０２ 容器 １０３ 水素ガス送給装置 １０４ 窒素ガス送給装置 １０５，１０７ ガスメータ １０６，１０８ ガスクロマトグラフ Ｓ1 試験体 Ｓ2 比較体1,11 substrate 2 anode 3 and 13 solid electrolyte 4 air electrode 5,15 interconnector 101 sleeve 102 container 103 hydrogen gas delivery system 104 nitrogen gas feeder 105, 107 a gas meter 106, 108 Gas Chromatograph S 1 specimen S 2 comparator
Claims (1)
および空気極からなる複数の単素子間をインタコネクタ
で電気的に接続したセルをスラリ一体焼結法で製造する
固体電解質型燃料電池のセルの製造方法であって、当該
セルを低酸素分圧の気流中で一体焼結することを特徴と
する固体電解質型燃料電池のセルの製造方法。1. A solid oxide fuel cell in which a plurality of single elements comprising a fuel electrode, a solid electrolyte, and an air electrode provided on a base are electrically connected by an interconnector by a slurry integrated sintering method. The method for producing a cell of a solid oxide fuel cell, characterized in that the cell is integrally sintered in a low oxygen partial pressure airflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9233441A JPH1173975A (en) | 1997-08-29 | 1997-08-29 | Manufacture of cell of solid electrolyte fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9233441A JPH1173975A (en) | 1997-08-29 | 1997-08-29 | Manufacture of cell of solid electrolyte fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1173975A true JPH1173975A (en) | 1999-03-16 |
Family
ID=16955099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9233441A Withdrawn JPH1173975A (en) | 1997-08-29 | 1997-08-29 | Manufacture of cell of solid electrolyte fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1173975A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001243965A (en) * | 2000-02-29 | 2001-09-07 | Kyocera Corp | Cell for solid electrolyte fuel cell and its manufacturing method and fuel cell having the same |
| WO2004088783A1 (en) * | 2003-03-31 | 2004-10-14 | Tokyo Gas Company Limited | Method for fabricating solid oxide fuel cell module |
| WO2007083627A1 (en) | 2006-01-17 | 2007-07-26 | Osaka Gas Co., Ltd. | Cell for solid oxide fuel cell and process for producing the same |
| JP2013501330A (en) * | 2009-08-03 | 2013-01-10 | コミッサリア ア レネルジー アトミーク エ オ ゼネルジ ザルタナテイヴ | Metal-supported electrochemical cell and manufacturing method thereof |
| JP2016533016A (en) * | 2013-09-04 | 2016-10-20 | シーリーズ インテレクチュアル プロパティ カンパニー リミティド | Method for forming a metal-supported solid oxide fuel cell |
| JP2018113148A (en) * | 2017-01-11 | 2018-07-19 | 日本碍子株式会社 | Electrochemical cell |
-
1997
- 1997-08-29 JP JP9233441A patent/JPH1173975A/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001243965A (en) * | 2000-02-29 | 2001-09-07 | Kyocera Corp | Cell for solid electrolyte fuel cell and its manufacturing method and fuel cell having the same |
| WO2004088783A1 (en) * | 2003-03-31 | 2004-10-14 | Tokyo Gas Company Limited | Method for fabricating solid oxide fuel cell module |
| JPWO2004088783A1 (en) * | 2003-03-31 | 2006-07-06 | 東京瓦斯株式会社 | Method for producing solid oxide fuel cell module |
| US7838166B2 (en) | 2003-03-31 | 2010-11-23 | Tokyo Gas Co., Ltd. | Method for fabricating solid oxide fuel cell module |
| WO2007083627A1 (en) | 2006-01-17 | 2007-07-26 | Osaka Gas Co., Ltd. | Cell for solid oxide fuel cell and process for producing the same |
| EP1976045A1 (en) * | 2006-01-17 | 2008-10-01 | Osaka Gas Company Limited | Cell for solid oxide fuel cell and process for producing the same |
| EP1976045A4 (en) * | 2006-01-17 | 2009-06-17 | Osaka Gas Co Ltd | Cell for solid oxide fuel cell and process for producing the same |
| US8178254B2 (en) | 2006-01-17 | 2012-05-15 | Osaka Gas Co., Ltd. | Cell for solid oxide fuel cell and method for manufacturing same |
| JP5160241B2 (en) * | 2006-01-17 | 2013-03-13 | 大阪瓦斯株式会社 | Solid oxide fuel cell and method for producing the same |
| JP2013501330A (en) * | 2009-08-03 | 2013-01-10 | コミッサリア ア レネルジー アトミーク エ オ ゼネルジ ザルタナテイヴ | Metal-supported electrochemical cell and manufacturing method thereof |
| JP2016533016A (en) * | 2013-09-04 | 2016-10-20 | シーリーズ インテレクチュアル プロパティ カンパニー リミティド | Method for forming a metal-supported solid oxide fuel cell |
| JP2018113148A (en) * | 2017-01-11 | 2018-07-19 | 日本碍子株式会社 | Electrochemical cell |
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