JPH0670162U - Flat plate solid oxide fuel cell - Google Patents
Flat plate solid oxide fuel cellInfo
- Publication number
- JPH0670162U JPH0670162U JP011165U JP1116593U JPH0670162U JP H0670162 U JPH0670162 U JP H0670162U JP 011165 U JP011165 U JP 011165U JP 1116593 U JP1116593 U JP 1116593U JP H0670162 U JPH0670162 U JP H0670162U
- Authority
- JP
- Japan
- Prior art keywords
- solid electrolyte
- power generation
- membrane
- fuel cell
- flat plate
- 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- Withdrawn
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- Y02E60/525—
Landscapes
- Inert Electrodes (AREA)
Abstract
(57)【要約】
【目的】電極焼成に伴う電極層の著しい収縮や温度変動
に伴う電極層の固体電解質膜から剥離や発電膜自身のソ
リを防止でき、発電性能劣化や発電膜の割れを防ぐこと
のできる発電膜を有する平板型固体電解質燃料電池を提
供すること。
【構成】固体電解質膜１１ａと、固体電解質膜１１ａの
両面上にそれぞれ塗布・焼成された燃料電極１２ａ及び
空気電極とを有する発電膜１０ａを備えた平板型固体電
解質燃料電池において、燃料電極１１ａまたは前記空気
電極の少なくとも一方の電極層が複数領域に分割されて
いる。
(57) [Abstract] [Purpose] It is possible to prevent peeling from the solid electrolyte membrane of the electrode layer and warp of the power generation membrane itself due to significant shrinkage of the electrode layer due to electrode firing and temperature fluctuation, and to prevent power generation performance deterioration and cracking of the power generation membrane. To provide a flat plate type solid electrolyte fuel cell having a power generation membrane which can be prevented. A flat plate type solid electrolyte fuel cell comprising a solid electrolyte membrane 11a and a power generation membrane 10a having a fuel electrode 12a and an air electrode coated and fired on both sides of the solid electrolyte membrane 11a. At least one electrode layer of the air electrode is divided into a plurality of regions.
Description
【０００１】[0001]
本考案は、一体積層型燃料電池、溝付平板型燃料電池等の平板型状の発電膜を 有する平板型固体電解質燃料電池に関する。 The present invention relates to a flat-plate solid electrolyte fuel cell having a flat-plate power generation membrane such as an integral laminated fuel cell and a flat-plate fuel cell with a groove.
【０００２】[0002]
図４は、一般的な一体積層型燃料電池の要部構成を示す斜視図である。すなわ ち、１０は電解質発電膜、２０は平板インタコネクタ、３０は燃料電極側支持層 、４０は空気電極側支持層、５０はガスケットを示している。 図５は、一般的な溝付平板型燃料電池の要部構成を示す斜視図である。すなわ ち、１０は電解質発電膜、６０は溝付インタコネクタを示している。 FIG. 4 is a perspective view showing a configuration of a main part of a general integral stack type fuel cell. That is, 10 is an electrolyte power generation membrane, 20 is a flat plate interconnector, 30 is a fuel electrode side support layer, 40 is an air electrode side support layer, and 50 is a gasket. FIG. 5 is a perspective view showing a main part configuration of a general flat plate fuel cell with a groove. That is, 10 is an electrolyte power generation membrane, and 60 is a grooved interconnector.
【０００３】 一方、図６は従来の電解質発電膜の平面図である。電解質発電膜１０は図に示 すように固体電解質膜１１とこの固体電解質膜１１を挟む如く両側面に設けられ た一対の電極層１２，１３（１３は不図示）から構成されている。なお、上述し た電解質発電膜１０は、固体電解質膜１１の両面に、両電極層１２，１３をドク ターブレード法、スクリーン印刷法等で塗布・焼成することにより製作される。 固体電解質膜１１としては主にイットリア安定化ジルコニアが用いられ、燃料電 極層１２としてはニッケル／ジルコニアが用いられ、空気電極層１３としてはラ ンタン・マンガナイトが多用されている。On the other hand, FIG. 6 is a plan view of a conventional electrolyte power generation membrane. As shown in the figure, the electrolyte power generation membrane 10 is composed of a solid electrolyte membrane 11 and a pair of electrode layers 12 and 13 (13 is not shown) provided on both sides so as to sandwich the solid electrolyte membrane 11. The electrolyte power generation membrane 10 described above is manufactured by applying and firing both electrode layers 12 and 13 on both surfaces of the solid electrolyte membrane 11 by a doctor blade method, a screen printing method or the like. Yttria-stabilized zirconia is mainly used as the solid electrolyte membrane 11, nickel / zirconia is used as the fuel electrode layer 12, and lanthanum manganite is often used as the air electrode layer 13.
【０００４】[0004]
上記した従来の平板固体電解質燃料電池では、固体電解質膜１１の両面に電極 層１２，１３を塗布・焼成する際に、電極焼成に伴う電極層の著しい収縮により 電極層１２，１３が固体電解質膜１１から剥離したり、発電膜自身にソリを生じ 、その結果、性能劣化や発電膜の割れ等の問題を招く虞がある。また、固体電解 質膜１１と両電極層１２，１３の熱膨張係数が異なるため、発電時の昇温、降温 等の温度変動に伴って固体電解質膜１１と電極層１２，１３との間が剥離する虞 がある。これらの現象は大型の電極を塗布・焼成した場合、特に顕著である。こ のため、長時間運転を行なう場合や大型電極層を有する大型発電膜使用時に性能 劣化等の不具合が生じ、性能維持が困難である。 In the above-described conventional flat plate solid electrolyte fuel cell, when the electrode layers 12 and 13 are applied and fired on both sides of the solid electrolyte membrane 11, the electrode layers 12 and 13 are contracted remarkably due to the firing of the electrodes. There is a risk of peeling from 11 or warping of the power generation film itself, resulting in problems such as performance deterioration and cracking of the power generation film. In addition, since the solid electrolyte membrane 11 and the electrode layers 12 and 13 have different thermal expansion coefficients, the solid electrolyte membrane 11 and the electrode layers 12 and 13 are separated between the solid electrolyte membrane 11 and the electrode layers 12 and 13 due to temperature fluctuations such as temperature rise and fall during power generation. There is a risk of peeling. These phenomena are particularly remarkable when a large electrode is applied and baked. For this reason, it is difficult to maintain the performance when it is operated for a long time or when a large-sized power generation membrane having a large electrode layer is used, which causes problems such as performance deterioration.
【０００５】 そこで本考案は、電極焼成に伴う電極層の著しい収縮や温度変動に伴う電極層 の固体電解質膜からの剥離や発電膜自身のソリを防止でき、発電性能劣化や発電 膜の割れを防ぐことのできる発電膜を有する平板型固体電解質燃料電池を提供す ることを目的としている。Therefore, the present invention can prevent peeling of the electrode layer from the solid electrolyte membrane and warpage of the power generation membrane itself due to remarkable shrinkage of the electrode layer due to firing of the electrode and temperature fluctuation, and deterioration of power generation performance and cracking of the power generation membrane can be prevented. It is an object of the present invention to provide a flat plate solid electrolyte fuel cell having a power generation membrane that can be prevented.
【０００６】[0006]
上記課題を解決し目的を達成するために、本考案は、固体電解質膜と、この固 体電解質膜の両面上にそれぞれ塗布・焼成された燃料電極及び空気電極とを有す る発電膜を備えた平板型固体電解質燃料電池において、前記燃料電極または前記 空気電極の少なくとも一方の電極層を複数領域に分割するようにした。 In order to solve the above problems and achieve the object, the present invention comprises a power generation membrane having a solid electrolyte membrane and a fuel electrode and an air electrode coated and fired on both sides of the solid electrolyte membrane, respectively. In the flat plate type solid electrolyte fuel cell, at least one of the fuel electrode and the air electrode is divided into a plurality of regions.
【０００７】 なお、前記複数領域に分割された電極層の分割形状は正多角形とすることが望 ましく、さらに上記分割された電極層の分割配列を千鳥状とすることが望ましい 。It is desirable that the divided shape of the electrode layer divided into the plurality of regions is a regular polygon, and that the divided array of the divided electrode layers is staggered.
【０００８】[0008]
上記手段を講じた結果、次のような作用が生じる。燃料電極層または空気電極 層の少なくとも一方の電極層が複数領域に分割されているので、電極焼成に伴う 電極層の著しい収縮や温度変動に伴う膨張・収縮が緩和され、電極層の固体電解 質膜からの剥離や発電膜のソリによる割れを防止できる。なお、電極層の分割形 状を例えば正六角形等の正多角形として、分割領域形状を円形状に近付けると一 層有効である。さらに、分割された電極層の分割配列は千鳥状にすると溝付平板 インタコネクタ及び波型支持層と電極層との接触が全く無い領域の発生を防止で きるので、発電膜としての電気的接合が確保される。 As a result of taking the above measures, the following effects occur. Since at least one of the fuel electrode layer and the air electrode layer is divided into a plurality of regions, significant contraction of the electrode layer due to electrode firing and expansion / contraction due to temperature fluctuations are mitigated, and the solid electrolyte of the electrode layer is reduced. It is possible to prevent peeling from the film and cracking of the power generation film due to warpage. It should be noted that it is effective to form the divided shape of the electrode layer as a regular polygon such as a regular hexagon so that the divided region shape is close to a circular shape. Furthermore, if the divided array of the divided electrode layers is staggered, it is possible to prevent the occurrence of a region where there is no contact between the grooved flat plate interconnector and the corrugated support layer and the electrode layer. Is secured.
【０００９】[0009]
図１は本考案の第１の実施例に係る平板型固体電解質燃料電池に組み込まれた 発電膜の平面図である。 FIG. 1 is a plan view of a power generation membrane incorporated in a flat plate type solid electrolyte fuel cell according to a first embodiment of the present invention.
【００１０】 第１実施例に係る発電膜１０ａは、 150× 150× 0.5mmのイットリア安定化ジ ルコニア板で形成された固体電解質膜１１ａと、この固体電解質膜１１ａの一方 の面にスクリーン印刷法で塗布・焼成され複数の正方形に多分割されたニッケル ／ジルコニアで形成された燃料電極層１２ａと、他方の面に塗布・焼成されラン タン・マンガナイトで形成された空気電極層とから構成されている。The power generation membrane 10a according to the first embodiment is a solid electrolyte membrane 11a formed of a yttria-stabilized zirconia plate of 150 × 150 × 0.5 mm, and a screen printing method is applied to one surface of the solid electrolyte membrane 11a. It is composed of a fuel electrode layer 12a made of nickel / zirconia which is applied and fired on and is divided into a plurality of squares, and an air electrode layer which is applied and fired on the other surface and is made of lanthanum manganite. ing.
【００１１】 本実施例では、従来の非分割電極層に比べて電極焼成に伴う電極層１２ａの著 しい収縮や温度変動に伴う膨張・収縮が緩和され、電極層１２ａの固体電解質膜 １１ａからの剥離や発電膜１０ａのソリによる割れを防止できる。 図２は本考案の第２の実施例に係る平板型固体電解質燃料電池に組み込まれた 発電膜１０ｂの平面図である。In this example, as compared with the conventional non-divided electrode layer, the significant shrinkage of the electrode layer 12a accompanying the firing of the electrode and the expansion / contraction of the electrode layer 12a due to temperature fluctuation are alleviated, and the solid electrolyte membrane 11a of the electrode layer 12a is removed. It is possible to prevent peeling and cracking of the power generation film 10a due to warpage. FIG. 2 is a plan view of a power generation membrane 10b incorporated in a flat plate type solid electrolyte fuel cell according to a second embodiment of the present invention.
【００１２】 第２実施例に係る発電膜１０ｂは、 150× 150× 0.5mmのイットリア安定化ジ ルコニア板で形成された固体電解質膜１１ｂと、この固体電解質膜１１ｂの一方 の面にスクリーン印刷法で塗布・焼成され複数の正方形に多分割され、かつ千鳥 状に配列されたニッケル／ジルコニアで形成された燃料電極層１２ｂと、他方の 面に塗布・焼成されランタン・マンガナイトで形成された空気電極層とから構成 されている。The power generation membrane 10b according to the second embodiment is a solid electrolyte membrane 11b formed of a 150 × 150 × 0.5 mm yttria-stabilized zirconia plate, and a screen printing method is applied to one surface of the solid electrolyte membrane 11b. The fuel electrode layer 12b made of nickel / zirconia, which is applied and fired on the other side and is divided into a plurality of squares, and which is arranged in a zigzag manner, and the air which is applied and fired on the other surface and is made of lanthanum and manganite. It is composed of an electrode layer.
【００１３】 本実施例では、分割形状の選択による発電膜上下に配置する溝付平板インタコ ネクタ及び波型支持層と電極層１２ｂとの接触が全く無い領域の発生を防止でき るので、発電膜１０ｂとしての電気的接合が確保される。 図３は本考案の第３の実施例に係る平板型固体電解質燃料電池に組み込まれた 発電膜１０ｃの平面図である。In this embodiment, it is possible to prevent the generation of a region where there is no contact between the grooved flat plate interconnector and the corrugated support layer disposed above and below the power generation film by selecting the divided shape, and the electrode layer 12b. The electrical connection as 10b is secured. FIG. 3 is a plan view of a power generation membrane 10c incorporated in a flat plate type solid electrolyte fuel cell according to a third embodiment of the present invention.
【００１４】 第３実施例に係る発電膜１０ｃは、 150× 150× 0.5mmのイットリア安定化ジ ルコニア板で形成された固体電解質膜１１ｃと、この固体電解質膜１１ｃの一方 の面にスクリーン印刷法で塗布・焼成され複数の正六角形に多分割され、かつ千 鳥状に配列されたニッケル／ジルコニアで形成された燃料電極層１２ｃと、他方 の面に塗布・焼成されランタン・マンガナイトで形成された空気電極層とから構 成されている。The power generation membrane 10c according to the third embodiment is a solid electrolyte membrane 11c formed of a 150 × 150 × 0.5 mm yttria-stabilized zirconia plate, and a screen printing method is applied to one surface of the solid electrolyte membrane 11c. The fuel electrode layer 12c made of nickel / zirconia is applied and fired on the other surface and is divided into a plurality of regular hexagons, and is formed on the other surface by lanthanum manganite. And an air electrode layer.
【００１５】 本実施例では、電極層１２ｃの固体電解質膜１１ｃからの剥離や発電膜１０ｃ のソリによる割れをさらに効果的に防止できるとともに、第２実施例と同様に発 電膜１０ｃとしての電気的接合が十分に確保される。 なお、本考案は前記各実施例に限定されるものではなく、本考案の要旨を逸脱 しない範囲で種々変形実施可能であるのは勿論である。In the present embodiment, peeling of the electrode layer 12c from the solid electrolyte membrane 11c and cracking of the power generation membrane 10c due to warpage can be prevented more effectively, and, as in the case of the second embodiment, the electricity generation membrane 10c can be prevented. Sufficient joint is secured. The present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.
【００１６】[0016]
本考案によれば、燃料電極層または空気電極層の少なくとも一方の電極層が複 数領域に分割されているので、電極焼成に伴う電極層の著しい収縮や温度変動に 伴う電極層の固体電解質膜から剥離や発電膜自身のソリを防止でき、発電性能劣 化や発電膜の割れを防ぐことが可能である。 According to the present invention, since at least one of the fuel electrode layer and the air electrode layer is divided into a plurality of regions, the solid electrolyte membrane of the electrode layer due to the remarkable shrinkage of the electrode layer due to firing of the electrode or the temperature change. It is possible to prevent peeling and warpage of the power generation membrane itself, and prevent deterioration of power generation performance and cracking of the power generation membrane.
【図１】本考案の第１の実施例に係る平板型固体電解質
燃料電池に組み込まれた発電膜の平面図。FIG. 1 is a plan view of a power generation membrane incorporated in a flat plate type solid electrolyte fuel cell according to a first embodiment of the present invention.
【図２】本考案の第２の実施例に係る平板型固体電解質
燃料電池に組み込まれた発電膜の平面図。FIG. 2 is a plan view of a power generation membrane incorporated in a flat plate type solid electrolyte fuel cell according to a second embodiment of the present invention.
【図３】本考案の第３の実施例に係る平板型固体電解質
燃料電池に組み込まれた発電膜の平面図。FIG. 3 is a plan view of a power generation membrane incorporated in a flat plate type solid electrolyte fuel cell according to a third embodiment of the present invention.
【図４】一般的な一体積層型燃料電池の要部構成を示す
斜視図。FIG. 4 is a perspective view showing a configuration of a main part of a general integral stacked fuel cell.
【図５】一般的な溝付平板型燃料電池の要部構成を示す
斜視図。FIG. 5 is a perspective view showing a main part configuration of a general flat plate type fuel cell with a groove.
【図６】従来の平板型固体電解質燃料電池に組み込まれ
た発電膜の平面図。FIG. 6 is a plan view of a power generation membrane incorporated in a conventional flat plate solid oxide fuel cell.
１０ａ〜１０ｃ…発電膜 １１ａ〜１１ｂ
…固体電解質膜 １２ａ〜１２ｃ…燃料電極層10a-10c ... Power generation film 11a-11b
... Solid electrolyte membrane 12a-12c ... Fuel electrode layer
───────────────────────────────────────────────────── フロントページの続き (72)考案者 渡辺 潔 兵庫県神戸市兵庫区和田崎町一丁目１番１ 号 三菱重工業株式会社神戸造船所内 (72)考案者 角 正夫 兵庫県高砂市荒井町新浜二丁目１番１号 三菱重工業株式会社高砂研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyoshi Watanabe 1-1-1, Wadasaki-cho, Hyogo-ku, Kobe-shi, Hyogo Mitsubishi Heavy Industries, Ltd. Kobe Shipyard (72) Masao Kaku, Niihama Niihama, Arai-cho, Takasago-shi, Hyogo 1-1-1 Mitsubishi Heavy Industries Ltd. Takasago Research Center
Claims (3)
上にそれぞれ塗布・焼成された燃料電極及び空気電極と
を有する発電膜を備えてなる平板型固体電解質燃料電池
において、 前記燃料電極または前記空気電極の少なくとも一方の電
極層が複数領域に分割されていることを特徴とする平板
型固体電解質燃料電池。1. A flat plate type solid electrolyte fuel cell comprising a solid electrolyte membrane and a power generation membrane having a fuel electrode and an air electrode coated and fired on both sides of the solid electrolyte membrane, respectively. At least one electrode layer of the air electrode is divided into a plurality of regions, wherein a flat plate solid electrolyte fuel cell is provided.
状を正多角形としたことを特徴とする請求項１に記載の
平板型固体電解質燃料電池。2. The flat plate type solid electrolyte fuel cell according to claim 1, wherein the electrode layer divided into the plurality of regions has a regular polygonal shape.
列を千鳥状としたことを特徴とする請求項１または２に
記載の平板型固体電解質燃料電池。3. The flat plate type solid electrolyte fuel cell according to claim 1, wherein the divided arrangement of the electrode layers divided into the plurality of regions is zigzag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP011165U JPH0670162U (en) | 1993-03-15 | 1993-03-15 | Flat plate solid oxide fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP011165U JPH0670162U (en) | 1993-03-15 | 1993-03-15 | Flat plate solid oxide fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0670162U true JPH0670162U (en) | 1994-09-30 |
Family
ID=11770438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP011165U Withdrawn JPH0670162U (en) | 1993-03-15 | 1993-03-15 | Flat plate solid oxide fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0670162U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005093275A (en) * | 2003-09-18 | 2005-04-07 | Mitsubishi Materials Corp | Gas diffusion layer member and cell member of solid polymer type fuel cell, and solid polymer type fuel cell |
| JP2005235549A (en) * | 2004-02-19 | 2005-09-02 | Mitsubishi Materials Corp | Solid oxide fuel cell |
| JP2005322452A (en) * | 2004-05-07 | 2005-11-17 | Nissan Motor Co Ltd | Cell plate for solid oxide fuel cell, and solid oxide fuel cell |
| JP2011124148A (en) * | 2009-12-11 | 2011-06-23 | Tdk Corp | Power generation cell for solid oxide fuel cell, and solid oxide fuel cell |
| JP6130575B1 (en) * | 2015-11-26 | 2017-05-17 | 日本碍子株式会社 | Fuel cell stack |
| JP6130576B1 (en) * | 2015-11-26 | 2017-05-17 | 日本碍子株式会社 | Fuel cell stack |
| JP6130578B1 (en) * | 2015-11-26 | 2017-05-17 | 日本碍子株式会社 | Fuel cell stack |
| JP6130577B1 (en) * | 2015-11-26 | 2017-05-17 | 日本碍子株式会社 | Fuel cell stack |
-
1993
- 1993-03-15 JP JP011165U patent/JPH0670162U/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005093275A (en) * | 2003-09-18 | 2005-04-07 | Mitsubishi Materials Corp | Gas diffusion layer member and cell member of solid polymer type fuel cell, and solid polymer type fuel cell |
| JP4501385B2 (en) * | 2003-09-18 | 2010-07-14 | 三菱マテリアル株式会社 | Gas diffusion layer member and cell member for polymer electrolyte fuel cell, polymer electrolyte fuel cell |
| JP2005235549A (en) * | 2004-02-19 | 2005-09-02 | Mitsubishi Materials Corp | Solid oxide fuel cell |
| JP2005322452A (en) * | 2004-05-07 | 2005-11-17 | Nissan Motor Co Ltd | Cell plate for solid oxide fuel cell, and solid oxide fuel cell |
| JP2011124148A (en) * | 2009-12-11 | 2011-06-23 | Tdk Corp | Power generation cell for solid oxide fuel cell, and solid oxide fuel cell |
| JP6130575B1 (en) * | 2015-11-26 | 2017-05-17 | 日本碍子株式会社 | Fuel cell stack |
| JP6130576B1 (en) * | 2015-11-26 | 2017-05-17 | 日本碍子株式会社 | Fuel cell stack |
| JP6130578B1 (en) * | 2015-11-26 | 2017-05-17 | 日本碍子株式会社 | Fuel cell stack |
| JP6130577B1 (en) * | 2015-11-26 | 2017-05-17 | 日本碍子株式会社 | Fuel cell stack |
| JP2017107846A (en) * | 2015-11-26 | 2017-06-15 | 日本碍子株式会社 | Fuel cell stack |
| JP2017107847A (en) * | 2015-11-26 | 2017-06-15 | 日本碍子株式会社 | Fuel cell stack |
| JP2017107845A (en) * | 2015-11-26 | 2017-06-15 | 日本碍子株式会社 | Fuel cell stack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19970703 |