JP2802345B2 - Fuel cell - Google Patents
Fuel cellInfo
- Publication number
- JP2802345B2 JP2802345B2 JP1129574A JP12957489A JP2802345B2 JP 2802345 B2 JP2802345 B2 JP 2802345B2 JP 1129574 A JP1129574 A JP 1129574A JP 12957489 A JP12957489 A JP 12957489A JP 2802345 B2 JP2802345 B2 JP 2802345B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- oxygen
- cell
- flow path
- containing gas
- 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 - Lifetime
Links
- 239000000446 fuel Substances 0.000 title claims description 81
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 68
- 239000001301 oxygen Substances 0.000 claims description 68
- 229910052760 oxygen Inorganic materials 0.000 claims description 68
- 239000007789 gas Substances 0.000 claims description 43
- 238000005192 partition Methods 0.000 claims description 42
- 239000003792 electrolyte Substances 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910017563 LaCrO Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
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
Landscapes
- Fuel Cell (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、板状電解質層の一方の面に膜状又は板状酸
素極をかつ他方の面に膜状又は板状燃料極を付設したセ
ルを、前記酸素極が酸素含有ガス流路にかつ前記燃料極
が燃料流路に臨む状態で設けた燃料電池、詳しくはセル
構造及びセル取付構造の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention provides a film-shaped or plate-shaped oxygen electrode on one surface of a plate-shaped electrolyte layer and a film-shaped or plate-shaped fuel electrode on the other surface. The present invention relates to a fuel cell in which a cell is provided with the oxygen electrode facing an oxygen-containing gas flow path and the fuel electrode facing a fuel flow path, and more particularly, to an improvement in a cell structure and a cell mounting structure.
従来、第９図に示すように、板状電解質層（１）の一
面に膜状又は板状酸素極（２）をかつ他面に膜状又板状
燃料極（３）を有するセル（Ｃ）に、酸素極（２）との
間に酸素含有ガス流路（41）を形成する第１セパレータ
（42）、並びに、燃料極（３）との間に燃料流路（43）
を形成する第２セパレータ（44）を付設していた。Conventionally, as shown in FIG. 9, a cell (C) having a membrane or plate oxygen electrode (2) on one surface of a plate electrolyte layer (1) and a membrane or plate fuel electrode (3) on the other surface. ), A first separator (42) that forms an oxygen-containing gas flow path (41) with the oxygen electrode (2), and a fuel flow path (43) with the fuel electrode (3).
A second separator (44) for forming the above is provided.
そして、第10図に示すように、燃料流路（43）及び酸
素含有ガス流路（41）の一方に連通する第１給気路（4
5）と他方に連通する第２給気路（46）を第１隔壁（4
7）で区画形成し、第２給気路（46）に連通する排気路
（48）と第１給気路（45）を第２隔壁（49）で区画形成
し、第１及び第２隔壁（47），（49）にわたってセル
（Ｃ）を架設して、セル（Ｃ）を第１及び第２隔壁（4
7），（49）に気密状に連結していた。Then, as shown in FIG. 10, the first air supply path (4) communicating with one of the fuel flow path (43) and the oxygen-containing gas flow path (41).
5) and the second air supply passage (46) communicating with the other
7), an exhaust passage (48) communicating with the second air supply passage (46) and a first air supply passage (45) are formed by a second partition (49), and the first and second partitions are formed. A cell (C) is erected over (47) and (49), and the cell (C) is divided into the first and second partition walls (4
7) and (49) were connected in an airtight manner.
しかし、セル（Ｃ）夫々に２個のセパレータ（42），
（44）を付設しているために、製作が面倒であり、製作
コストが高くなり、そして、多数のセル（Ｃ）を有する
燃料電池が大型になる。However, each cell (C) has two separators (42),
Since (44) is added, the production is troublesome, the production cost is increased, and the fuel cell having a large number of cells (C) becomes large.
その上、発電に伴う発熱によりセル（Ｃ）が600〜100
0℃もの高温になるため、セル（Ｃ）の熱膨張に起因す
る応力が両方の隔壁（47），（49）とセル（Ｃ）との気
密連結部（50）に集中して、気密連結部（50）、セル
（Ｃ）、隔壁（47），（49）の破壊が生じやすい。In addition, the cell (C) becomes 600 to 100 due to the heat generated by power generation.
Since the temperature is as high as 0 ° C., the stress caused by the thermal expansion of the cell (C) concentrates on the airtight connection part (50) between the partition walls (47) and (49) and the cell (C), and the airtight connection is made. The portion (50), the cell (C), and the partition walls (47) and (49) are easily broken.
本発明の目的は、製作を容易安価に実行できるように
セル構造を改良すると共に、熱歪みによる破壊を無くせ
るようにセル取付構造を改良する点にある。An object of the present invention is to improve the cell structure so that manufacturing can be performed easily and inexpensively, and to improve the cell mounting structure so that breakage due to thermal strain can be eliminated.
本発明の特徴構成は、 セルの酸素極又は燃料極のいずれか一方側のみにセパ
レータを付設して、酸素極又は燃料極とセパレータとの
間に酸素含有ガス流路又は燃料流路をＵターン形状にし
て形成し、 セルを燃料流路又は酸素含有ガス流路の内部に配置す
ると共に、セルの酸素含有ガス流路又は燃料流路の入口
に酸素含有ガス供給路又は燃料供給路をかつ出口に排気
路を接続し、 燃料流路と酸素含有ガス流路及び排気路、又は、酸素
含有ガス流路と燃料流路及び排気路を区画する隔壁に、
セルを気密状に連結して、セルを片側で固定したことに
あり、その作用効果は次の通りである。The characteristic configuration of the present invention is that a separator is attached to only one of the oxygen electrode and the fuel electrode of the cell, and the oxygen-containing gas flow path or the fuel flow path is U-turned between the oxygen electrode or the fuel electrode and the separator. The cell is disposed inside the fuel flow path or the oxygen-containing gas flow path, and the oxygen-containing gas supply path or the fuel supply path is provided at the inlet of the oxygen-containing gas flow path or the fuel flow path of the cell and the outlet is formed. An exhaust path is connected to the fuel flow path and the oxygen-containing gas flow path and the exhaust path, or a partition that separates the oxygen-containing gas flow path, the fuel flow path, and the exhaust path,
The cells are connected in an airtight manner and the cells are fixed on one side, and the operation and effect are as follows.
つまり、１個のセパレータをセルに付設して、酸素含
有ガス流路と燃料流路の一方だけをセルとセパレータで
区画形成し、セルを燃料流路又は酸素含有ガス流路の内
部に配置し、酸素極に酸素含有ガスをかつ燃料極に燃料
を夫々各別に供給できるように構成することによって、
前述の従来技術では２個必要としたセパレータを１個に
して、セルの製作を容易かつ安価に実行できるようにな
った。また、多数のセルを有する燃料電池を多数のセパ
レータ省略で十分に小型化できるようになった。That is, one separator is attached to the cell, only one of the oxygen-containing gas flow path and the fuel flow path is defined by the cell and the separator, and the cell is disposed inside the fuel flow path or the oxygen-containing gas flow path. By supplying oxygen-containing gas to the oxygen electrode and fuel to the fuel electrode respectively,
In the prior art described above, the number of separators required two was reduced to one, so that the cell can be manufactured easily and inexpensively. Further, a fuel cell having a large number of cells can be sufficiently miniaturized by omitting a large number of separators.
さらに、セルとセパレータの間の酸素含有ガス流路又
は燃料流路をＵターン形状にして、そのＵターン形状の
流路に接続した酸素含有ガス供給路又は燃料供給路と排
気路を燃料流路又は酸素含有ガス流路に対して一側方に
配置し、燃料流路と酸素含有ガス供給路及び排気路を区
画するか、酸素含有ガス流路と燃料供給及び排気路を区
画する隔壁に、セルを気密状に連結し、セルを片側で固
定することによって、流路間での漏れに対するシールを
施しながら、高温になるセルの熱膨張に起因するセルと
隔壁の気密連結部への集中応力を大巾に減少できる。Further, the oxygen-containing gas flow path or the fuel flow path between the cell and the separator is U-shaped, and the oxygen-containing gas supply path or the fuel supply path and the exhaust path connected to the U-shaped flow path are connected to the fuel flow path. Or disposed on one side with respect to the oxygen-containing gas flow path, to partition the fuel flow path and the oxygen-containing gas supply path and the exhaust path, or to the partition that partitions the oxygen-containing gas flow path and the fuel supply and exhaust path, By connecting the cells in a gas-tight manner and fixing the cells on one side, the leaks between the flow paths are sealed, and the concentrated stress on the air-tight connection between the cells and the partition walls due to the thermal expansion of the cells that becomes hot Can be greatly reduced.
さらに説明すると、セルはその一側部のみで隔壁に固
定されているから、セルの熱膨張に対する自由度が、前
述従来技術のセル両側固定構造に比して極めて大きくな
り、熱歪みに伴う応力集中が原因となるセル、隔壁、そ
れらの気密連結部の破壊を十分に防止できる。More specifically, since the cell is fixed to the partition only at one side thereof, the degree of freedom for the thermal expansion of the cell becomes extremely large as compared with the above-described conventional cell-side fixed structure, and the stress accompanying the thermal strain is increased. The destruction of cells, partition walls, and their airtight connection portions caused by concentration can be sufficiently prevented.
その結果、セルの製作を容易安価に実行でき、多数の
セルをコンパクトに並設でき、熱歪みに対する耐久性が
優れた、全体として製作面、コスト面、設置面及び耐久
性の全てにおいて一段と優れた燃料電池を提供できるよ
うになった。As a result, cells can be manufactured easily and inexpensively, a large number of cells can be compactly arranged side by side, and the durability against thermal distortion is excellent. As a whole, the manufacturing, cost, installation, and durability are all better. Fuel cells can now be provided.
〔実施例１〕 次に、第１図ないし第４図により第１実施例を示す。Embodiment 1 Next, a first embodiment will be described with reference to FIGS. 1 to 4. FIG.
四角形の板状電解質層（１）の一方の面に膜状又は板
状酸素極（２）をかつ他方の面に膜状又は板状燃料極
（３）を、夫々全面又はほぼ全面にわたって一体的に貼
付けた状態で付設して、酸素極（２）と燃料極（３）か
ら起電力を得るための燃料電池のセル（Ｃ）を形成して
ある。A film-shaped or plate-shaped oxygen electrode (2) is formed on one surface of the square plate-shaped electrolyte layer (1) and a film-shaped or plate-shaped fuel electrode (3) is formed on the other surface, and the whole surface or almost the whole surface is integrated. A fuel cell (C) for obtaining an electromotive force from the oxygen electrode (2) and the fuel electrode (3) is formed.
電解質層（１）は、３モル％程度のYtを固溶させた正
方晶のZrO2、その他適当なものから成り、酸素極（２）
はLaMnO3、その他適当なものから成り、燃料極（３）は
NiとZrO2のサーメット、その他適当なものから成る。The electrolyte layer (1) is made of tetragonal ZrO 2 in which about 3 mol% of Yt is dissolved as a solid solution, and other suitable materials.
Consists of LaMnO 3 and other suitable materials, and the fuel electrode (3)
Consists of Ni and ZrO 2 cermets and other suitable materials.
三方の辺部に沿うコの字形状の突条部（4a）を有する
導電性セパレータ（４）を酸素極（２）側のみに付設し
て、突条部（4a）を全長にわたって酸素極（２）に貼付
け、酸素極（２）とセパレータ（４）の間の隙間をＵタ
ーン形状の酸素含有ガス流路（５）に形成するための仕
切部材（６）を設けてある。A conductive separator (4) having a U-shaped ridge (4a) along three sides is attached only to the oxygen electrode (2) side, and the ridge (4a) is formed over the entire length of the oxygen electrode ( A partition member (6) is attached to 2) to form a gap between the oxygen electrode (2) and the separator (4) in a U-turn-shaped oxygen-containing gas flow path (5).
セパレータ（４）は、酸化と還元に対する耐食性に優
れたLaCrO3、その他適当なものから成り、仕切部材
（６）は、セパレータ（４）と同様の材料又は耐酸化性
に優れたLaMnO3、その他適当なものから成り、セパレー
タ（４）と仕切部材（６）は一体でも別体でもよい。The separator (4) is made of LaCrO 3 having excellent corrosion resistance against oxidation and reduction, and other suitable materials. The partition member (6) is made of the same material as the separator (4) or LaMnO 3 having excellent oxidation resistance, and the like. The separator (4) and the partition member (6) may be made of a suitable material and may be integrated or separate.
Ｕターン形状の酸素含有ガス流路（５）において、熱
歪みを吸収できる柔軟な導電体（７）を、往路部分と往
路部分の夫々に複数個づつほぼ等間隔で平行に、かつ、
酸素極（２）とセパレータ（４）に密着させて設け、酸
素極（２）からセル端子としてのセパレータ（４）への
電気通路の断面積を大きくしてある。In the U-turn-shaped oxygen-containing gas flow path (5), a plurality of flexible conductors (7) capable of absorbing thermal strain are provided in each of the outward path portion and the outward path portion in parallel at substantially equal intervals, and
The oxygen electrode (2) is provided in close contact with the separator (4) to increase the cross-sectional area of the electric passage from the oxygen electrode (2) to the separator (4) as a cell terminal.
導電体（７）は耐熱性、耐酸化性に優れたLaMnO3のフ
ェルト状材、その他適当なものから成る。The conductor (7) is made of LaMnO 3 felt-like material having excellent heat resistance and oxidation resistance, and other suitable materials.
多数のセル（Ｃ）を上下に並ぶ状態で隔壁（8a）ない
し（8d）で形成した燃料流路（９）の内部に配置し、セ
ル（Ｃ）どうしの間夫々に、燃料流路（９）を形成する
ための導電性のスペーサ（10）をほぼ等間隔で並設し、
セル（Ｃ）全ての燃料極（３）を燃料流路（９）に臨ま
せると共に、セル（Ｃ）全てを導電性スペーサ（10）で
直列に接続してある。A large number of cells (C) are arranged vertically inside a fuel flow path (9) formed by partition walls (8a) to (8d), and a fuel flow path (9) is provided between the cells (C). ) Are arranged side by side at substantially equal intervals to form conductive spacers (10).
All the fuel electrodes (3) of the cell (C) face the fuel flow path (9), and all the cells (C) are connected in series by a conductive spacer (10).
スペーサ（10）は熱歪みを吸収できる柔軟な材料、例
えば還元に対する耐食性に優れたNiのフェルト状材、そ
の他適当なものから成る。The spacer (10) is made of a flexible material capable of absorbing thermal strain, for example, a felted Ni material having excellent corrosion resistance to reduction, or other suitable material.
セル（Ｃ）内の酸素含有ガス流路（５）夫々の入口に
隔壁（8a），（11），（12）で形成した酸素含有ガス供
給路（13）を接続し、かつ、出口に隔壁（8a），（1
2），（14）で形成した排気路（15）を接続してある。An oxygen-containing gas supply path (13) formed by partition walls (8a), (11), and (12) is connected to each inlet of the oxygen-containing gas flow path (5) in the cell (C), and a partition wall is provided at the outlet. (8a), (1
The exhaust path (15) formed in 2) and (14) is connected.
要するに、酸素含有ガス流路（５）に空気、酸素富化
空気、酸素などの酸素含有ガスを供給すると共に、燃料
流路（９）にH2供給源としての各種燃料を供給し、セル
（Ｃ）夫々において電解質層（１）の作用で電力を発生
させ、直列接続した多数のセル（Ｃ）から電力を回収す
るように構成してある。In short, an oxygen-containing gas such as air, oxygen-enriched air, or oxygen is supplied to the oxygen-containing gas flow path (5), and various fuels as an H 2 supply source are supplied to the fuel flow path (9). C) In each case, power is generated by the action of the electrolyte layer (1), and power is recovered from a number of cells (C) connected in series.
燃料流路（９）と酸素含有ガス供給路（13）及び排気
路（15）を区画する隔壁（8a）、並びに、酸素含有ガス
供給路（13）と排気路（15）を区画する隔壁（12）に、
全てのセル（Ｃ）の一端部をセラミック溶融物などの耐
熱性、電気絶縁性の接着材（16）で気密状に連結し、全
てのセル（Ｃ）の他端部をそれに対向する隔壁（8b）に
対して、セル（Ｃ）の熱膨張を許容するための微小な隙
間（17）ができるように配置し、最下方のセル（Ｃ）を
耐熱性、電気絶縁性の支持具（18）に載置してある。A partition (8a) that partitions the fuel flow path (9), the oxygen-containing gas supply path (13), and the exhaust path (15), and a partition that partitions the oxygen-containing gas supply path (13) and the exhaust path (15) ( 12)
One end of all cells (C) is connected in an airtight manner with a heat-resistant and electrically insulating adhesive (16) such as a ceramic melt, and the other end of all cells (C) is connected to a partition ( 8b), the cells (C) are arranged so as to have a small gap (17) to allow the thermal expansion of the cells (C), and the lowermost cell (C) is mounted on a heat-resistant and electrically insulating support (18). ).
つまり、セル（Ｃ）と隔壁（8a）を接着材（16）と支
持具（18）によって電気的に絶縁し、接着材（16）によ
って燃料流路（９）、酸素含有ガス供給路（13）、排気
路（15）間での漏れに対するシールを施し、セル（Ｃ）
の片側固定によって高温になるセル（Ｃ）の熱膨張によ
る応力集中を抑制して、セル（Ｃ）、隔壁（8a），セル
（Ｃ）と隔壁（8a）の連結部の破壊を防止するように構
成してある。That is, the cell (C) and the partition (8a) are electrically insulated by the adhesive (16) and the support (18), and the fuel (9) and the oxygen-containing gas supply path (13) are bonded by the adhesive (16). ), Sealing against leakage between the exhaust passages (15) and the cell (C)
The stress concentration due to the thermal expansion of the cell (C), which becomes high temperature by one-side fixing, is suppressed to prevent the cell (C), the partition (8a), and the connection portion between the cell (C) and the partition (8a) from being broken. It is configured in.
〔実施例２〕 次に、第５図ないし第８図により第２実施例を示す。Second Embodiment Next, a second embodiment will be described with reference to FIGS.
第１実施例と同様に形成したセル（Ｃ）の燃料極
（３）側のみに、第１実施例と同様のセパレータ（2
1）、仕切部材（22）、導電体（23）を付設して、燃料
極（３）とセパレータ（21）の間にＵターン形状の燃料
流路（24）を形成してある。The same separator (2) as in the first embodiment is provided only on the fuel electrode (3) side of the cell (C) formed in the same manner as in the first embodiment.
1) A partition member (22) and a conductor (23) are additionally provided to form a U-turn fuel flow path (24) between the fuel electrode (3) and the separator (21).
多数のセル（Ｃ）を上下に並ぶ状態で隔壁（25a）な
いし（25d）で形成した酸素含有ガス流路（26）の内部
に配置し、第１実施例と同様のスペーサ（27）によりセ
ル（Ｃ）どうしの間夫々に燃料流路（24）を形成してあ
る。A large number of cells (C) are arranged vertically inside an oxygen-containing gas flow path (26) formed by partition walls (25a) to (25d), and the cells are formed by the same spacers (27) as in the first embodiment. (C) Fuel passages (24) are formed between each other.
セル（Ｃ）内の燃料流路（24）夫々の入口に隔壁（25
a），（29），（30）で形成した燃料供給路（31）を接
続し、かつ、出口に隔壁（25a），（29），（32）で形
成した排気路（33）を接続してある。A partition wall (25) is provided at each inlet of the fuel flow path (24) in the cell (C).
a) Connect the fuel supply path (31) formed by (29) and (30), and connect the outlet to the exhaust path (33) formed by the partition walls (25a), (29) and (32). It is.
酸素含有ガス流路（26）と燃料供給路（31）及び排気
路（33）を区画する隔壁（25a）、並びに、燃料供給路
（31）と排気路（33）区画する隔壁（29）に、全てのセ
ル（Ｃ）の一端部を第１実施例と同様の接着材（34）で
気密状に連結し、全てのセル（Ｃ）の他端部をそれに対
向する隔壁（25a）に対して、セル（Ｃ）の熱膨張を許
容するための微小な隙間（35）ができるように配置し、
最下方のセル（Ｃ）を第１実施例と同様の支持具（36）
に載置し、第１実施例と同様の特性を有する燃料電池を
形成してある。The partition wall (25a) that partitions the oxygen-containing gas flow path (26) and the fuel supply path (31) and the exhaust path (33), and the partition wall (29) that partitions the fuel supply path (31) and the exhaust path (33) One end of all the cells (C) is air-tightly connected with the same adhesive (34) as in the first embodiment, and the other end of all the cells (C) is connected to the partition (25a) opposed thereto. And arranged so as to have a minute gap (35) for allowing thermal expansion of the cell (C),
The lowermost cell (C) is replaced with the same support (36) as in the first embodiment.
To form a fuel cell having the same characteristics as the first embodiment.
次に別実施例を説明する。 Next, another embodiment will be described.
酸素極（２）とセパレータ（４）の間に形成したＵタ
ーン形状の酸素含有ガス流路（５）、及び、燃料極
（３）とセパレータ（21）の間に形成したＵターン形状
の燃料流路（24）は、本数や配置関係や形状などにおい
て適当に変更でき、また、導電体（７），（23）を省略
してもよい。U-turn-shaped oxygen-containing gas flow path (5) formed between oxygen electrode (2) and separator (4), and U-turn-shaped fuel formed between fuel electrode (3) and separator (21) The number of channels, the arrangement relationship, the shape, and the like of the channels (24) can be appropriately changed, and the conductors (7) and (23) may be omitted.
Ｕターン形状の酸素含有ガス流路（５）又は燃料流路
（24）を形成するための具体構造は適当に変更でき、例
えば第９図に示すように、酸素極（２）とセパレータ
（４）、又は、燃料極（３）とセパレータ（21）の間
に、酸素含有ガス供給路（13）又は燃料供給路（31）に
接続された多数のパルプ（37）を並設して、パルプ（3
7）内の往路部分とパイプ（37）外で排気路（15）又は
（33）に接続された復路部分によって、Ｕターン形状の
酸素含有ガス流路（５）又は燃料流路（24）を形成して
も良い。The specific structure for forming the U-turn shaped oxygen-containing gas flow path (5) or the fuel flow path (24) can be appropriately changed. For example, as shown in FIG. 9, the oxygen electrode (2) and the separator (4) are formed. Or a plurality of pulp (37) connected to the oxygen-containing gas supply path (13) or the fuel supply path (31) between the fuel electrode (3) and the separator (21). (3
7) The U-turn-shaped oxygen-containing gas flow path (5) or fuel flow path (24) is formed by the outward path inside and the return path connected to the exhaust path (15) or (33) outside the pipe (37). It may be formed.
セパレータ（４）及び（21）の突条部（4a）及び（21
a）を板状電解質層（１）に貼付てもよく、また、セパ
レータ（４）及び（21）において平板状の主要部と突条
部（4a）及び（21a）を別体にして貼付てもよい。The ridges (4a) and (21) of the separators (4) and (21)
a) may be affixed to the plate-like electrolyte layer (1), and the separators (4) and (21) may be affixed with the plate-shaped main part and the ridges (4a) and (21a) separately. Is also good.
セル（Ｃ）の並設方向は水平方向など、適当に変更で
き、水平方向に並べる場合はスペーサ（10），（27）を
省略してもよい。The juxtaposition direction of the cells (C) can be appropriately changed, such as the horizontal direction. When the cells (C) are arranged in the horizontal direction, the spacers (10) and (27) may be omitted.
多数のセル（Ｃ）を並設して成るユニットの複数を電
気的に直列又は並列接続して設けてもよい。A plurality of units each having a number of cells (C) arranged in parallel may be electrically connected in series or in parallel.
隔壁（8a），（25a）にセル（Ｃ）を気密状に連結す
るに、隔壁（8a），（25a）とセル（Ｃ）の間に屈曲板
を介装し、屈曲部の撓み変形によって熱膨張差を吸収さ
せるように構成する等、変形自在で応力発生がほとんど
無い融通気密連結部を形成すると、熱歪による破壊防止
をより十分に図れる。In order to connect the cell (C) to the partition walls (8a) and (25a) in an airtight manner, a bent plate is interposed between the partition walls (8a) and (25a) and the cell (C), and the bent portion is deformed. By forming a deformable and airtight connection which hardly generates stress, such as by absorbing the difference in thermal expansion, it is possible to more sufficiently prevent breakage due to thermal strain.
尚、特許請求の範囲の項に図面との対照を便利にする
為に符号を記すが、該記入により本発明は添付図面の構
造に限定されるものではない。In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the structure shown in the attached drawings.
第１図ないし第４図は本発明の第１実施例を示し、第１
図は断面図、第２図は第１図のII−II矢視図、第３図は
第１図のIII−III矢視図、第４図はセルの分解斜視図で
ある。 第５図ないし第８図は本発明の第２実施例を示し、第５
図は断面図、第６図は第５図のVI−VI矢視図、第７図は
第５図のVII−VII矢視図、第８図はセルの分解斜視図で
ある。 第９図は本発明の別実施例を示す要部図である。 第10図及び第11図は従来例を示し、第10図はセルの分解
斜視図、第11図は断面図である。 （１）……電解質層、（２）……酸素極、（３）……燃
料極、（４），（21）……セパレータ、（５），（26）
……酸素含有ガス流路、（8a），（25a）……隔壁、
（９），（24）……燃料流路、（10），（27）……スペ
ーサ、（13）……酸素含有ガス供給路、（15），（33）
……排気路、（31）燃料供給路、（Ｃ）……セル。1 to 4 show a first embodiment of the present invention.
FIG. 2 is a sectional view, FIG. 2 is a view taken along the line II-II of FIG. 1, FIG. 3 is a view taken along the line III-III of FIG. 1, and FIG. 4 is an exploded perspective view of the cell. 5 to 8 show a second embodiment of the present invention.
FIG. 6 is a sectional view, FIG. 6 is a view taken along the line VI-VI of FIG. 5, FIG. 7 is a view taken along the line VII-VII of FIG. 5, and FIG. 8 is an exploded perspective view of the cell. FIG. 9 is a main part view showing another embodiment of the present invention. 10 and 11 show a conventional example, FIG. 10 is an exploded perspective view of a cell, and FIG. 11 is a sectional view. (1) ... electrolyte layer, (2) ... oxygen electrode, (3) ... fuel electrode, (4), (21) ... separator, (5), (26)
... oxygen-containing gas flow path, (8a), (25a) ... partition walls,
(9), (24) ... fuel flow path, (10), (27) ... spacer, (13) ... oxygen-containing gas supply path, (15), (33)
... exhaust path, (31) fuel supply path, (C) ... cell.
Claims (4)
板状酸素極（２）をかつ他方の面に膜状又は板状燃料極
（３）を付設したセル（Ｃ）を、前記酸素極（２）が酸
素含有ガス流路（５）にかつ前記燃料（３）が燃料流路
（９）に臨む状態で設けた燃料電池であって、 前記酸素極（２）側のみにセパレータ（４）を付設し
て、前記酸素極（２）と前記セパレータ（４）との間に
前記酸素含有ガス流路（５）をＵターン形状にして形成
し、 前記セル（Ｃ）を前記燃料流路（９）の内部に配置する
と共に、前記セル（Ｃ）内の酸素含有ガス流路（５）の
入口に酸素含有ガス供給路（13）をかつ出口に排気路
（15）を接続し、 前記燃料流路（９）と前記酸素含有ガス供給路（13）及
び排気路（15）を区画する隔壁（8a）に、前記セル
（Ｃ）を気密状に連結して、前記セル（Ｃ）を片側で固
定してある燃料電池。1. A cell (C) having a membrane or plate oxygen electrode (2) on one side of a plate electrolyte layer (1) and a membrane or plate fuel electrode (3) on the other side. A fuel cell provided with the oxygen electrode (2) facing the oxygen-containing gas flow path (5) and the fuel (3) facing the fuel flow path (9), wherein the oxygen electrode (2) side Only the separator (4) is provided, and the oxygen-containing gas flow path (5) is formed in a U-turn shape between the oxygen electrode (2) and the separator (4). The cell (C) Inside the fuel flow path (9), an oxygen-containing gas supply path (13) at the inlet of the oxygen-containing gas flow path (5) in the cell (C), and an exhaust path (15) at the outlet. The cell (C) is hermetically sealed to a partition (8a) that partitions the fuel flow path (9), the oxygen-containing gas supply path (13), and the exhaust path (15). A fuel cell in which the cell (C) is fixed on one side.
板状酸素極（２）をかつ他方の面に膜状又は板状燃料極
（３）を付設したセル（Ｃ）を、前記酸素極（２）が酸
素含有ガス流路（26）にかつ前記燃料極（３）が燃料流
路（24）に臨む状態で設けた燃料電池であって、 前記燃料極（３）側のみにセパレータ（21）を付設し
て、前記燃料極（３）と前記セパレータ（21）との間に
前記燃料流路（24）をＵターン形状にして形成し、 前記セル（Ｃ）を前記酸素含有ガス流路（26）の内部に
配置すると共に、前記セル（Ｃ）内の燃料流路（24）の
入口に燃料供給路（31）をかつ出口に排気路（33）を接
続し、 前記酸素含有ガス流路（26）と前記燃料流路（31）及び
排気路（33）を区画する隔壁（25a）に、前記セル
（Ｃ）を気密状に連結して、前記セル（Ｃ）を片側で固
定してある燃料電池。2. A cell (C) having a membrane or plate-like oxygen electrode (2) on one side of a plate-like electrolyte layer (1) and a membrane- or plate-like fuel electrode (3) on the other side. A fuel cell provided with the oxygen electrode (2) facing the oxygen-containing gas flow path (26) and the fuel electrode (3) facing the fuel flow path (24), wherein the fuel electrode (3) A separator (21) is attached only on the side, and the fuel flow path (24) is formed in a U-turn shape between the fuel electrode (3) and the separator (21). A fuel supply passage (31) is connected to an inlet of a fuel passage (24) in the cell (C), and an exhaust passage (33) is connected to an outlet thereof, while being disposed inside the oxygen-containing gas passage (26). Connecting the cell (C) to the partition wall (25a) that partitions the oxygen-containing gas flow path (26), the fuel flow path (31), and the exhaust path (33) in an airtight manner; Fuel cells is fixed to C) on one side.
セル（Ｃ）を、多数が上下に並ぶ状態で並設し、前記セ
ル（Ｃ）どうしの間夫々に、前記燃料流路（９）を形成
するためのスペーサ（10）を設けてある燃料電池。3. The fuel cell (C) having a cell structure and a mounting structure according to claim 1, wherein a large number of the cells (C) are arranged side by side in a vertically arranged state, and the fuel flow path ( A fuel cell provided with a spacer (10) for forming 9).
セル（Ｃ）を、多数が上下に並ぶ状態で並設し、前記セ
ル（Ｃ）どうしの間夫々に、前記酸素含有ガス流路（2
6）を形成するためのスペーサ（27）を設けてある燃料
電池。4. A cell structure and a mounting structure according to claim 2, wherein said cells (C) are arranged side by side in a state where a number of said cells (C) are vertically arranged, and said oxygen-containing gas flow is provided between said cells (C). Road (2
A fuel cell provided with a spacer (27) for forming 6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1129574A JP2802345B2 (en) | 1989-05-22 | 1989-05-22 | Fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1129574A JP2802345B2 (en) | 1989-05-22 | 1989-05-22 | Fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02306545A JPH02306545A (en) | 1990-12-19 |
| JP2802345B2 true JP2802345B2 (en) | 1998-09-24 |
Family
ID=15012837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1129574A Expired - Lifetime JP2802345B2 (en) | 1989-05-22 | 1989-05-22 | Fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2802345B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0754709B2 (en) * | 1989-06-16 | 1995-06-07 | 大阪瓦斯株式会社 | Fuel cell |
| JP2783926B2 (en) * | 1991-12-12 | 1998-08-06 | 日本碍子株式会社 | Single cell of solid oxide fuel cell and power generator using the same |
| JP2758520B2 (en) * | 1991-09-27 | 1998-05-28 | 日本碍子株式会社 | Single cell of solid oxide fuel cell and power generator using the same |
| US6500579B1 (en) * | 1999-08-19 | 2002-12-31 | Mitsubishi Denki Kabushiki Kaisha | Fuel cell structure |
| JP4485075B2 (en) * | 2001-01-10 | 2010-06-16 | 東京瓦斯株式会社 | Air and fuel supply method in flat plate type SOFC |
| JP6139344B2 (en) * | 2013-09-06 | 2017-05-31 | 株式会社東芝 | Electrochemical cell |
| JP6638039B1 (en) * | 2018-09-07 | 2020-01-29 | 日本碍子株式会社 | Manifold and cell stack device |
| JP6719018B2 (en) * | 2019-10-04 | 2020-07-08 | 日本碍子株式会社 | Manifold and cell stack device |
-
1989
- 1989-05-22 JP JP1129574A patent/JP2802345B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02306545A (en) | 1990-12-19 |
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