JP3051575B2 - Manufacturing method of electrolytic cell - Google Patents
Manufacturing method of electrolytic cellInfo
- Publication number
- JP3051575B2 JP3051575B2 JP4195070A JP19507092A JP3051575B2 JP 3051575 B2 JP3051575 B2 JP 3051575B2 JP 4195070 A JP4195070 A JP 4195070A JP 19507092 A JP19507092 A JP 19507092A JP 3051575 B2 JP3051575 B2 JP 3051575B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- interconnector
- electrolytic cell
- cell
- support tube
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Fuel Cell (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は電解セルの製造方法に関
し、特に高温水蒸気電解セル、固体電解質燃料電池に適
用される電解セルの製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an electrolytic cell, and more particularly to a method for producing an electrolytic cell applied to a high-temperature steam electrolytic cell and a solid oxide fuel cell.
【０００２】[0002]
【従来の技術】従来は、電解質管とインターコネクタ管
を接合した接合体を支持管として、内外に電極を付着、
焼成することにより、電解セル、例えば高温水蒸気電解
セルを製作していた。2. Description of the Related Art Conventionally, electrodes are attached inside and outside using a joined body obtained by joining an electrolyte tube and an interconnector tube as a support tube.
By firing, an electrolytic cell, for example, a high-temperature steam electrolytic cell has been manufactured.
【０００３】[0003]
【発明が解決しようとする課題】高温水蒸気電解セルの
性能を向上させるためには、電解質管を薄肉化して導電
率を高くする必要がある。しかし、電解質管を薄肉化す
ると、接合時の軸方向圧力により、電解質管に割れが生
じる場合がある。また、このようなセルを製作する場
合、電解質管とインターコネクタ管からなる接合体の内
面に、燃料極材料を塗布する必要があるので作業性が悪
く、さらに、燃料極はスラリの塗布により製作するた
め、肉厚が薄く導電率が低いという問題がある。In order to improve the performance of the high-temperature steam electrolysis cell, it is necessary to reduce the thickness of the electrolyte tube to increase the conductivity. However, when the thickness of the electrolyte tube is reduced, a crack may occur in the electrolyte tube due to an axial pressure at the time of joining. Also, when manufacturing such a cell, the workability is poor because it is necessary to apply a fuel electrode material to the inner surface of a joined body composed of an electrolyte tube and an interconnector tube, and the fuel electrode is manufactured by applying a slurry. Therefore, there is a problem that the thickness is small and the conductivity is low.
【０００４】本発明は上記技術水準に鑑み、従来の電解
セルの製造時及び製造された電解セルの不具合を解消し
うる電解セルの製造方法を提供しようとするものであ
る。The present invention has been made in view of the above-mentioned state of the art, and an object of the present invention is to provide a method for manufacturing an electrolytic cell which can solve the problems at the time of manufacturing a conventional electrolytic cell and the problems of the manufactured electrolytic cell.
【０００５】[0005]
【課題を解決するための手段】本発明は管状の燃料極と
インターコネクタ管を絶縁材を介して接合して支持管を
形成し、該支持管の外表面に順次スラリ化した固体電解
質と空気極材を塗布、焼成することを特徴とする電解セ
ルの製造方法である。SUMMARY OF THE INVENTION According to the present invention, a tubular fuel electrode and an interconnector tube are joined via an insulating material to form a support tube, and a solid electrolyte and air which are successively slurried on the outer surface of the support tube are formed. This is a method for manufacturing an electrolytic cell, which comprises applying and firing an electrode material.
【０００６】本発明をさらに詳しく説明すると、本発明
は先ず、複数の燃料極管とインターコネクタ管を絶縁材
を介して交互に軸方向接合したものを支持管とするもの
である。インターコネクタ管と燃料極管を２個１組にし
たものを単セルと称するが、単セルのインターコネクタ
管と燃料極管の間は電気的に絶縁する必要があるため、
単セルのインターコネクタ管と燃料極管の間に中間材と
して絶縁材を介在させて、単セル間のインターコネクタ
管と燃料極管を接合し、これを支持管とするものであ
る。そして、接合された支持管上に、スラリ化した固体
電解質と空気極材を塗布した後、焼成して電解セルを製
造するのである。The present invention will be described in more detail. In the present invention, a support tube is formed by alternately joining a plurality of anode tubes and interconnector tubes in the axial direction via an insulating material. A pair of the interconnector tube and the fuel electrode tube is called a single cell. However, since it is necessary to electrically insulate the interconnector tube and the fuel electrode tube of the single cell,
An insulating material is interposed as an intermediate material between the interconnector tube of the single cell and the fuel electrode tube, and the interconnector tube and the fuel electrode tube between the single cells are joined to form a support tube. Then, a slurryed solid electrolyte and an air electrode material are applied to the joined support tube, and then fired to produce an electrolytic cell.
【０００７】[0007]
【作用】固体電解質よりも肉厚が大きい複数の燃料極管
とインターコネクタ管を絶縁材を介して交互に軸方向に
接合したものを支持管とする。このように、燃料極管と
インターコネクタ管の肉厚を増加すると、支持管の強度
が増加するため、セル自体の強度が増加し、かつ導電率
も高くなる。The support tube is formed by alternately joining a plurality of fuel electrode tubes having a greater wall thickness than the solid electrolyte and interconnector tubes in the axial direction via an insulating material. As described above, when the thickness of the fuel electrode tube and the thickness of the interconnector tube are increased, the strength of the support tube is increased, so that the strength of the cell itself is increased and the conductivity is also increased.
【０００８】複数の燃料極管とインターコネクタ管を絶
縁材を介して交互に接合した支持管の外表面に、スラリ
化した固体電解質を塗布して焼成するため、肉厚が薄い
固体電解質が形成される。そのため、固体電解質の導電
率を高くすることが可能である。セルの強度は支持管に
もたせるため、固体電解質の強度が薄肉化により低下し
ても、セルの強度に影響はない。また、複数の燃料極管
とインターコネクタ管を接合した支持管の外表面に、固
体電解質と空気極を形成するため、生産性がよい。[0008] Since a slurry of solid electrolyte is applied to the outer surface of a support tube in which a plurality of fuel tubes and interconnector tubes are alternately joined via an insulating material and then fired, a thin solid electrolyte is formed. Is done. Therefore, it is possible to increase the conductivity of the solid electrolyte. Since the strength of the cell is given to the support tube, even if the strength of the solid electrolyte is reduced by thinning, the strength of the cell is not affected. Further, since the solid electrolyte and the air electrode are formed on the outer surface of the support tube in which the plurality of fuel electrode tubes and the interconnector tube are joined, productivity is high.
【０００９】[0009]
【実施例】以下、本発明の一実施例を図１によって説明
する。複数の燃料極管（ＮｉＯ／ＹＳＺ）１とインター
コネクタ管（Ｌａ系セラミックス）２を、交互に軸方向
に接合したものを支持管とする。インターコネクタ２と
燃料極管１を２個１組にしたものを単セルと称するが、
単セルのインターコネクタ管２と燃料極管１の間は電気
的に絶縁する必要がある。そのために、単セルのインタ
ーコネクタ管２と燃料極管１の間に、中間材として絶縁
材（Ａｌ2 Ｏ3）３を介在させて、単セル間のインター
コネクタ管２と燃料極管１を接合することにより支持管
を構成する。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG. A plurality of fuel electrode tubes (NiO / YSZ) 1 and interconnector tubes (La-based ceramics) 2 are alternately joined in the axial direction as a support tube. A set of two interconnectors 2 and anode tubes 1 is called a single cell.
It is necessary to electrically insulate between the single cell interconnector tube 2 and the fuel electrode tube 1. For this purpose, an insulating material (Al 2 O 3 ) 3 is interposed as an intermediate material between the interconnector tube 2 of the single cell and the fuel electrode tube 1, and the interconnector tube 2 and the fuel electrode tube 1 between the single cells are connected. The support tube is formed by joining.
【００１０】その支持管上に、スラリ化した固体電解質
（ＹＳＺ）４を塗布して１５００℃で焼成した後、さら
にその上にスラリ化した空気極材（ＬａＭｎ系セラミッ
クス）５を塗布して１３００℃で焼成し、電解セルを製
造する。On the support tube, a slurryed solid electrolyte (YSZ) 4 is applied and fired at 1500 ° C., and then a slurryed air electrode material (LaMn-based ceramics) 5 is applied thereon for 1300 hours. Firing at ℃ to produce an electrolytic cell.
【００１１】従来のセルは固体電解質管とインターコネ
クタ管の接合体を支持管とするため、高導電率化をする
場合に電解質肉厚を薄くすると、接合時に電解質管に損
傷する場合がある。それに対して本発明の場合、固体電
解質を接合する必要がないため、電解質を薄肉化できセ
ルの高導電率化が可能となる。In a conventional cell, since a joined body of a solid electrolyte tube and an interconnector tube is used as a support tube, if the thickness of the electrolyte is reduced in increasing the conductivity, the electrolyte tube may be damaged at the time of joining. On the other hand, in the case of the present invention, since it is not necessary to join a solid electrolyte, the thickness of the electrolyte can be reduced and the conductivity of the cell can be increased.
【００１２】[0012]
【発明の効果】本発明によれば、肉厚が厚い燃料極管と
インターコネクタ管を接合するため、接合時に加わる軸
方向接合圧力による損傷を防止することが可能である。
また、接合することにより形成された支持管の肉厚が大
きいほど、支持管の強度は向上するため、セルの強度は
向上する。また支持管の肉厚が大きいほど、燃料極管と
インターコネクタ管の導電率は向上する。According to the present invention, since the thick fuel electrode tube and the interconnector tube are joined, damage due to the axial joining pressure applied at the time of joining can be prevented.
In addition, as the thickness of the support tube formed by joining increases, the strength of the support tube increases, and the strength of the cell also increases. Also, the greater the thickness of the support tube, the higher the conductivity of the fuel electrode tube and the interconnector tube.
【００１３】さらに、セルの強度は支持管にもたせるた
め、固体電解質の強度は必要ないため、固体電解質を薄
肉化することが可能であり、導電率を高めることができ
る。また、さらに、支持管の外表面に固体電解質と空気
極を形成するため、生産性を向上することができる。Further, since the strength of the cell is given to the support tube, the strength of the solid electrolyte is not required, so that the thickness of the solid electrolyte can be reduced and the conductivity can be increased. Further, since the solid electrolyte and the air electrode are formed on the outer surface of the support tube, productivity can be improved.
【図１】本発明の電解セルの製造方法の説明図。FIG. 1 is an explanatory diagram of a method for producing an electrolytic cell of the present invention.
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 8/00 - 8/24 Continuation of front page (58) Field surveyed (Int.Cl. 7 , DB name) H01M 8/00-8/24
Claims (1)
縁材を介して接合して支持管を形成し、該支持管の外表
面に順次スラリ化した固体電解質と空気極材を塗布、焼
成することを特徴とする電解セルの製造方法。1. A tubular fuel electrode and an interconnector tube are joined via an insulating material to form a support tube, and a solid electrolyte and an air electrode material which are sequentially slurried are applied to the outer surface of the support tube and fired. A method for producing an electrolytic cell, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4195070A JP3051575B2 (en) | 1992-07-22 | 1992-07-22 | Manufacturing method of electrolytic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4195070A JP3051575B2 (en) | 1992-07-22 | 1992-07-22 | Manufacturing method of electrolytic cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0644983A JPH0644983A (en) | 1994-02-18 |
| JP3051575B2 true JP3051575B2 (en) | 2000-06-12 |
Family
ID=16335060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4195070A Expired - Fee Related JP3051575B2 (en) | 1992-07-22 | 1992-07-22 | Manufacturing method of electrolytic cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3051575B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7838166B2 (en) | 2003-03-31 | 2010-11-23 | Tokyo Gas Co., Ltd. | Method for fabricating solid oxide fuel cell module |
| JP4718772B2 (en) * | 2003-12-10 | 2011-07-06 | 三菱重工業株式会社 | Solid oxide fuel cell, water electrolysis cell, and method for producing solid oxide fuel cell |
| US20110053045A1 (en) * | 2009-08-31 | 2011-03-03 | Sung Han Kim | Solid oxide fuel cell and method of manufacturing the same |
| JP5501882B2 (en) * | 2010-07-13 | 2014-05-28 | 三菱重工業株式会社 | Solid oxide fuel cell and method for producing the same |
| JP6712118B2 (en) * | 2014-09-30 | 2020-06-17 | 森村Ｓｏｆｃテクノロジー株式会社 | Solid oxide fuel cell stack |
-
1992
- 1992-07-22 JP JP4195070A patent/JP3051575B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0644983A (en) | 1994-02-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20000307 |
|
| LAPS | Cancellation because of no payment of annual fees |