JPS63124376A - Solid electrolyte fuel cell - Google Patents
Solid electrolyte fuel cellInfo
- Publication number
- JPS63124376A JPS63124376A JP61268987A JP26898786A JPS63124376A JP S63124376 A JPS63124376 A JP S63124376A JP 61268987 A JP61268987 A JP 61268987A JP 26898786 A JP26898786 A JP 26898786A JP S63124376 A JPS63124376 A JP S63124376A
- Authority
- JP
- Japan
- Prior art keywords
- fuel electrode
- alumina
- solid electrolyte
- fuel cell
- nickel film
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 34
- 239000007784 solid electrolyte Substances 0.000 title claims abstract description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 11
- 239000003792 electrolyte Substances 0.000 claims abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 239000002803 fossil fuel Substances 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000758 substrate Substances 0.000 abstract description 6
- 238000010248 power generation Methods 0.000 abstract description 5
- 238000007740 vapor deposition Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract 1
- 238000002407 reforming Methods 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000006057 reforming reaction Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000007751 thermal spraying Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
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
- H01M8/24—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
- H01M8/243—Grouping of unit cells of tubular or cylindrical configuration
-
- 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
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は固体電解質燃料電池（Ｓｏｌｉｄ ０ｘｉｄｅ
Ｆｕｅｔ Ｃｅｔｔ；以下５ＯＦＣと称す）に関し、特
に基体管に改良を施したものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to solid oxide fuel cells (Solid Oxide Fuel Cells).
Fuet Cett (hereinafter referred to as 5OFC), in particular, the base tube has been improved.
従来、５ＯＦＣとしては例えば第３図に示すものが知ら
れている。Conventionally, as a 5OFC, the one shown in FIG. 3, for example, is known.
図中の１は、セラミックス製の基体管である。1 in the figure is a base tube made of ceramics.
この基体管１上には膜厚の薄い燃料極２が溶射等により
形成されているとともに、アルミナ３が形成されている
。前記燃料極２上には、電解質４がアルミナ３上に延出
して形成されている。前記アルミナ３及び燃料極２上に
は、インタコネクタ５が形成されている。前記電解質４
．アルミナ３及びインタコネクタ５上には、空気極６が
形成されている。On this base tube 1, a thin fuel electrode 2 is formed by thermal spraying or the like, and alumina 3 is also formed thereon. On the fuel electrode 2, an electrolyte 4 is formed extending over the alumina 3. An interconnector 5 is formed on the alumina 3 and the fuel electrode 2. The electrolyte 4
．． An air electrode 6 is formed on the alumina 3 and the interconnector 5.
しかしながら、従来の５ＯＦＣによれば、内部改質によ
る発電時に燃料極２に生成する水（Ｈ２Ｏ）の除去を基
体管１の空隙部を通っての拡散に頼っている。従って、
水分を円滑に除去できず、発電効率の向上を図る上での
課題であった。However, in the conventional 5OFC, the removal of water (H2O) generated at the fuel electrode 2 during power generation through internal reforming relies on diffusion through the voids in the base tube 1. Therefore,
Moisture could not be removed smoothly, which was an issue in improving power generation efficiency.
一方、内部改善による発電を行う場合は、改質用蒸気を
燃料とともに系外から供給する必要がある。On the other hand, when generating power by internal improvement, it is necessary to supply reforming steam together with fuel from outside the system.
本発明は上記事情に鑑みてなされたもので、内部改質方
式による発電を行う際に、燃料極で生成した水分を速や
かに除去できるとともに、系外からの改質用蒸気の供給
を不要にできる固体電解質燃料電池を提供することを目
的とする。The present invention was made in view of the above circumstances, and when generating power using an internal reforming method, it is possible to quickly remove water generated at the fuel electrode, and it is not necessary to supply reforming steam from outside the system. The purpose is to provide a solid electrolyte fuel cell that can
本発明は、基体管と、この基体管上に形成された燃料極
、インタコネクタ、電解質及び空気極がらなり、化石燃
料を内部で直接水素、一酸化炭素に改質する固体電解質
燃料電池において、前記基体管の内面にニッケル膜を形
成したことを要旨とする。The present invention provides a solid electrolyte fuel cell that consists of a base tube, a fuel electrode, an interconnector, an electrolyte, and an air electrode formed on the base tube, and that directly reformes fossil fuel into hydrogen and carbon monoxide internally. The gist is that a nickel film is formed on the inner surface of the base tube.
本発明によれば、基体管の内面にニッケル膜ヲ形成する
ことによシ、基体管の内面で改質反応が起こるとともに
、改質反応に必要な水分は全て反応生成水から供給して
系外からの水分供給は不要となる。According to the present invention, by forming a nickel film on the inner surface of the substrate tube, a reforming reaction occurs on the inner surface of the substrate tube, and all the water necessary for the reforming reaction is supplied from the reaction product water to supply the system. No external water supply is required.
以下、本発明の一実施例を第１図を参照して説明する。 An embodiment of the present invention will be described below with reference to FIG.
図中の１１は、セラミック製の基本管である。11 in the figure is a basic tube made of ceramic.
この基体管１１の内面には、厚さ１０〜３０μｍ程度の
ニッケル膜１２が蒸着等によりポーラスな状態に形成さ
れている。ここで、ニッケル膜１２の厚さは活性力を失
わない限シ、薄いものが好ましい。On the inner surface of the base tube 11, a nickel film 12 having a thickness of about 10 to 30 μm is formed in a porous state by vapor deposition or the like. Here, the thickness of the nickel film 12 is preferably thin as long as the activation power is not lost.
また、その膜厚は溶射条件により定まる。前記基体管１
１上には膜厚の薄い燃料極１３が溶射等によシ形成され
ているとともに、アルミナ１４が形成されている。前記
燃料極１３上には、電解質１５がアルミナ１４上に延出
して形成されている。前記アルミナ１４及び燃料極１３
上には、インタコネクタ１６が形成されている。前記電
解質１５゜アルミナ１４及びインタコネクタ１６上には
、空気極１７が形成されている。Further, the film thickness is determined by thermal spraying conditions. The base tube 1
A thin fuel electrode 13 is formed on the fuel electrode 1 by thermal spraying or the like, and alumina 14 is also formed thereon. An electrolyte 15 is formed on the fuel electrode 13 so as to extend over the alumina 14 . The alumina 14 and the fuel electrode 13
An interconnector 16 is formed thereon. An air electrode 17 is formed on the electrolyte 15° alumina 14 and the interconnector 16.
上記実施例に係る固体電解質燃料電池によれば、セラミ
ックス製の基体管１１の内面にニッケル膜１２を形成し
た構造となっているため、５ＯＦＣ発電時に燃料極１３
で生成する水分を円滑に除去できる。即ち、基体管１ノ
の内面では下記式（１）の改質反応を進行させる。According to the solid electrolyte fuel cell according to the above embodiment, since the nickel film 12 is formed on the inner surface of the ceramic base tube 11, the fuel electrode 12 is formed during 5OFC power generation.
The moisture generated can be removed smoothly. That is, on the inner surface of the base tube 1, a reforming reaction expressed by the following formula (1) is allowed to proceed.
ＣＨ４＋２Ｈ２０→ＣＯ２＋４Ｈ２・・・ （１）そし
て、改質反応に必要な水分は、下記式（２）の如＜ ５
ＯＦＣ発電時に燃料極１３で生成する。CH4+2H20→CO2+4H2... (1) And the water required for the reforming reaction is calculated as shown in the following formula (2) < 5
It is generated at the fuel electrode 13 during OFC power generation.
Ｈ２＋−ｚＯ２→ Ｈ２０・・・ （２）ここで、式（
２）の生成水分は第２図の矢印Ａに示す如くニッケル膜
１２へ供給されるため、水分を円滑に除去することが可
能となる。なお、水素（Ｈ２）。H2+-zO2→ H20... (2) Here, the formula (
Since the moisture generated in step 2) is supplied to the nickel film 12 as shown by arrow A in FIG. 2, the moisture can be removed smoothly. Note that hydrogen (H2).
一酸化炭素（ＣＯ）は矢印Ｂの如く５ＯＦＣ内部で改質
されるため、改質炉等は不要となる。Since carbon monoxide (CO) is reformed inside the 5OFC as shown by arrow B, a reforming furnace or the like is not required.
また、上記実施例において燃料として天然ガス（ＣＨ４
）を用いた場合、ＣＨ４１モルに対しＣＨ４＋２Ｈ２０
→ＣＯ２＋４Ｈ２
４■２＋２０２−＋４Ｈ２０
であり、改質に必要な蒸気（２モル）は５ＯＦＣでの生
成Ｈ２０（４モル）で供給可能であシ、系外からの水分
供給は物質収支上不要となる。In addition, natural gas (CH4
), CH4+2H20 for 1 mol of CH4
→CO2+4H2 4■2+202-+4H20, and the steam (2 mol) required for reforming can be supplied by the H20 (4 mol) produced in 5OFC, and water supply from outside the system is not necessary in terms of mass balance. .
以上詳述した如く本発明によれば、燃料極で生成した水
分を速かに除去でき、かつ同時に系外からの改質用蒸気
の供給を不要にできる固体電解質燃料電池を提供できる
。As detailed above, according to the present invention, it is possible to provide a solid electrolyte fuel cell that can quickly remove moisture generated at the fuel electrode and at the same time eliminate the need for supplying reforming steam from outside the system.
第１図は本発明の一実施例に係る固体電解質燃料電池の
略断面図、第２図は同燃料電池におけるＨ２． Ｃｏ
、 Ｈ２０の流れを説明するだめの断面図、第３図は従
来の固体電解質燃料電池の略断面図である。
１１・・・基体管、１２・・・ニッケル膜、１３・・・
燃料極、１４・・・アルミナ、１５・・・電解質、１６
・・・インタコネクタ、１７・・・空気極。FIG. 1 is a schematic sectional view of a solid electrolyte fuel cell according to an embodiment of the present invention, and FIG. 2 is a schematic cross-sectional view of a solid electrolyte fuel cell according to an embodiment of the present invention. Co
FIG. 3 is a schematic cross-sectional view of a conventional solid electrolyte fuel cell. 11...Base tube, 12...Nickel film, 13...
Fuel electrode, 14... Alumina, 15... Electrolyte, 16
...Interconnector, 17...Air electrode.
Claims (1)
ネクタ、電解質及び空気極からなり、化石燃料を内部で
直接水素、一酸化炭素に改質する固体電解質燃料電池に
おいて、前記基体管の内面にニッケル膜を形成したこと
を特徴とする固体電解質燃料電池。In a solid electrolyte fuel cell consisting of a base tube, a fuel electrode, an interconnector, an electrolyte, and an air electrode formed on the base tube, and in which fossil fuel is directly reformed internally into hydrogen and carbon monoxide, the base tube is A solid electrolyte fuel cell characterized by having a nickel film formed on its inner surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61268987A JPH0821397B2 (en) | 1986-11-12 | 1986-11-12 | Internal reforming type solid oxide fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61268987A JPH0821397B2 (en) | 1986-11-12 | 1986-11-12 | Internal reforming type solid oxide fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63124376A true JPS63124376A (en) | 1988-05-27 |
| JPH0821397B2 JPH0821397B2 (en) | 1996-03-04 |
Family
ID=17466080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61268987A Expired - Fee Related JPH0821397B2 (en) | 1986-11-12 | 1986-11-12 | Internal reforming type solid oxide fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0821397B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012022856A (en) * | 2010-07-13 | 2012-02-02 | Mitsubishi Heavy Ind Ltd | Solid oxide fuel cell and method for manufacturing the same |
| JP2014110164A (en) * | 2012-12-03 | 2014-06-12 | Mitsubishi Heavy Ind Ltd | Fuel cell and method for manufacturing fuel cell |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5864771A (en) * | 1981-09-29 | 1983-04-18 | ウエスチングハウス・エレクトリック・コーポレーション | Fuel battery generating device and method of operating same |
-
1986
- 1986-11-12 JP JP61268987A patent/JPH0821397B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5864771A (en) * | 1981-09-29 | 1983-04-18 | ウエスチングハウス・エレクトリック・コーポレーション | Fuel battery generating device and method of operating same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012022856A (en) * | 2010-07-13 | 2012-02-02 | Mitsubishi Heavy Ind Ltd | Solid oxide fuel cell and method for manufacturing the same |
| JP2014110164A (en) * | 2012-12-03 | 2014-06-12 | Mitsubishi Heavy Ind Ltd | Fuel cell and method for manufacturing fuel cell |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0821397B2 (en) | 1996-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |