JP2007095442A - Solid oxide fuel cell - Google Patents
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- JP2007095442A JP2007095442A JP2005281934A JP2005281934A JP2007095442A JP 2007095442 A JP2007095442 A JP 2007095442A JP 2005281934 A JP2005281934 A JP 2005281934A JP 2005281934 A JP2005281934 A JP 2005281934A JP 2007095442 A JP2007095442 A JP 2007095442A
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- 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
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Abstract
Description
本発明は、固体酸化物形燃料電池スタックに関する。 The present invention relates to a solid oxide fuel cell stack.
燃料電池は複数のスタックを接続して構成される。大きな電流を得たい場合にはスタックを並列接続し、大きな電圧を得たい場合には直列接続する。 A fuel cell is configured by connecting a plurality of stacks. Connect the stacks in parallel to obtain a large current, and connect them in series to obtain a large voltage.
前記スタックは複数のセルから構成される。セルには平板型と円筒型のものがある。特許文献１には平板型セルとして、燃料極、電解質および空気極をこの順に積層した隔壁によって、扁平ボックス状をなす基体内を２つの空間に分け、一方の空間に燃料ガス（水素）を他方の空間に空気を送り込む構造が開示され、また円筒型セルとして、円筒型の空気極基体管の外側にインターコネクタ、電解質層、燃料極を形成した構造が開示されている。 The stack is composed of a plurality of cells. There are flat type and cylindrical type cells. In Patent Document 1, a flat cell is divided into two spaces by a partition wall in which a fuel electrode, an electrolyte, and an air electrode are stacked in this order, and a fuel gas (hydrogen) is divided into one space. And a structure in which an interconnector, an electrolyte layer, and a fuel electrode are formed outside a cylindrical air electrode base tube as a cylindrical cell.
平板型セル同士は並列接続、直列接続のいずれも簡単に接続できるが、円筒型セルの場合に隣接するセル同士を直列接続するには、セルの外周面に外側の電極とは電気的に絶縁されたインターコネクタを露出させるなど構造が複雑になる。このため、円筒型セルによって構成されるスタック内では、セルを並列接続し、このスタックを直列接続して必要な電圧を得るようにしている。特に、上記特許文献１の図７Ｂでは、円筒型セルを集合したスタックを複数個直列接続した場合に、軸方向に長くなるのを防止するため、途中で折り返す構成が提案されている。 Flat cells can be easily connected in parallel or in series, but in the case of a cylindrical cell, in order to connect adjacent cells in series, the outer surface of the cell is electrically insulated from the outer electrode. The structure becomes complicated, for example, the exposed interconnector is exposed. For this reason, in a stack composed of cylindrical cells, cells are connected in parallel, and the stacks are connected in series to obtain a necessary voltage. In particular, in FIG. 7B of Patent Document 1, a configuration is proposed in which a plurality of stacks of cylindrical cells are connected in series in order to prevent the stack from being elongated in the axial direction.
また、特許文献２〜４にも円筒型セルの接続構造が開示されている。これら先行技術にはいずれもセルの側面の電極同士を集電部材で接続する並列接続と、セルの側面の電極とインターコネクタを集電部材で接続する直列接続が開示されており、集電部材の形状は特許文献２では平面視でＺ字状をなし、特許文献３ではスリット状をなし、特許文献４では帯状をなしている。 Also, Patent Documents 2 to 4 disclose connection structures of cylindrical cells. Each of these prior arts discloses a parallel connection in which the electrodes on the side surfaces of the cell are connected by a current collecting member, and a serial connection in which the electrode on the side surface of the cell and the interconnector are connected by a current collecting member. In Patent Document 2, the shape is Z-shaped in plan view, in Patent Document 3 is a slit shape, and in Patent Document 4 is a band shape.
例えば、超小型の燃料電池の場合には、スタックを複数個直列に接続せずに、１つのスタックで燃料電池として使用することが考えられる。このような場合に、スタックを構成するセルを並列接続していたのでは必要な電圧を確保することができない。 For example, in the case of an ultra-small fuel cell, it is conceivable to use a stack as a fuel cell without connecting a plurality of stacks in series. In such a case, if the cells constituting the stack are connected in parallel, a necessary voltage cannot be ensured.
円筒型セルの長さ方向に沿って、インターコネクタを形成すれば隣接する円筒型セル同士を簡単に接続することができるが、インターコネクタを形成すると構造が複雑になり、また接続作業も面倒であり、更にスタックとした後に剥離した場合に修理ができないなど多くの問題がある。 If an interconnector is formed along the length direction of the cylindrical cell, adjacent cylindrical cells can be easily connected to each other. However, if an interconnector is formed, the structure becomes complicated and the connection work is troublesome. In addition, there are many problems such as failure to repair when peeling after stacking.
また、隣接するセルのうち、一方のセルのインターコネクタと他方のセルの外周面の電極とを直接接続する構造ではセル間の隙間が小さくなり、またセルの軸方向の中間部を集電部材で接続する構造では、セルの外側空間が狭くなる。その結果、燃料ガス（または空気）の流通に支障が生じ、燃料電池として均一な特性が得られない。 Moreover, in the structure in which the interconnector of one cell and the electrode on the outer peripheral surface of the other cell are directly connected among adjacent cells, the gap between the cells is reduced, and the intermediate portion in the axial direction of the cell is a current collecting member. In the structure of connecting with, the outer space of the cell becomes narrow. As a result, the flow of fuel gas (or air) is hindered, and uniform characteristics as a fuel cell cannot be obtained.
上記の課題を解決するため、本発明は、複数の円筒型セルが集合して構成される固体酸化物形燃料電池スタックにおいて、各セルの長さ方向の端部には燃料極または空気極の一方に接続される第１の集電端子が設けられ、各セルの側面には燃料極または空気極の他方に接続される第２の集電端子が設けられ、互いに隣接するセルの前記第１の集電端子と第２の集電端子とが電気的に接続することで複数のセル全体が直列接続された構成とした。 In order to solve the above-described problems, the present invention provides a solid oxide fuel cell stack constituted by a plurality of cylindrical cells assembled, and a fuel electrode or an air electrode is provided at the end in the length direction of each cell. A first current collecting terminal connected to one side is provided, and a second current collecting terminal connected to the other of the fuel electrode or the air electrode is provided on the side surface of each cell, and the first of the cells adjacent to each other is provided. The plurality of cells were connected in series by electrically connecting the current collecting terminal and the second current collecting terminal.
前記第１の集電端子としては、セルの端部に差し込まれる棒状部を備えたものとし、隣接する前記第２の集電端子は、セルの長さ方向において交互に配置することで干渉するのが避けられ、更に前記第２の集電端子としては、セルを抱持するリング状にすることが考えられる。また、隣接する２つのセルの一方のセルの第１の集電端子と他方のセルの第２の集電端子とを導電性連結部材にて一体化してコネクタとしておくことが好ましい。 The first current collecting terminal is provided with a rod-like portion inserted into an end portion of the cell, and the adjacent second current collecting terminals interfere with each other by being alternately arranged in the cell length direction. Further, it is conceivable that the second current collecting terminal has a ring shape for holding the cell. In addition, it is preferable that the first current collecting terminal of one cell of the two adjacent cells and the second current collecting terminal of the other cell are integrated by a conductive connecting member to be a connector.
本発明によれば、スタックを構成する複数のセルが直列に接続されているので、１つのスタックで大きな電圧を得ることができる。そして、先行技術に示されるような集電部材がセル間の隙間を狭めることがないので、セル外側を流れる燃料ガス（または空気）の流れが阻害されず、均一な流れになるので、高性能のスタックを得ることができる。 According to the present invention, since a plurality of cells constituting the stack are connected in series, a large voltage can be obtained with one stack. And since the current collecting member as shown in the prior art does not narrow the gap between the cells, the flow of the fuel gas (or air) flowing outside the cells is not obstructed and becomes a uniform flow. You can get a stack of.
また、第１の集電端子がセルの端部に差し込まれる棒状部を備えたものとし、第２の集電端子をセルを抱持するリング状にすることで、スタックの組み立ておよび分解が簡単になり、修理やメンテナンスも楽になる。特に隣接する２つのセルの一方のセルの第１の集電端子と他方のセルの第２の集電端子とを導電性連結部材にて一体化しておけば、更に取り扱いが簡単になる。 In addition, it is assumed that the first current collecting terminal is provided with a rod-like portion that is inserted into the end portion of the cell, and the second current collecting terminal is formed in a ring shape that holds the cell, so that assembly and disassembly of the stack can be easily performed. This makes repairs and maintenance easier. In particular, if the first current collecting terminal of one of the two adjacent cells and the second current collecting terminal of the other cell are integrated by a conductive connecting member, handling is further simplified.
以下に本発明の実施の形態を添付図面に基づいて説明する。図１は本発明に係る固体酸化物形燃料電池スタックの全体斜視図、図２はセル単体の斜視図、図３はセルの径方向拡大断面図、図４はヘッダーの斜視図、図５はヘッダーの側面透視図、図６はスタックの接続状態を説明した平面図、図７はスタックの接続状態を説明した側面図、図８（ａ）〜（ｄ）はコネクタの斜視図である。 Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is an overall perspective view of a solid oxide fuel cell stack according to the present invention, FIG. 2 is a perspective view of a single cell, FIG. 3 is an enlarged sectional view of the cell in the radial direction, FIG. 4 is a perspective view of a header, and FIG. 6 is a side perspective view of the header, FIG. 6 is a plan view illustrating the connection state of the stack, FIG. 7 is a side view illustrating the connection state of the stack, and FIGS. 8A to 8D are perspective views of the connector.
固体酸化物形燃料電池スタック１は、複数の円筒型セル１０と、この円筒型セル１０に燃料ガス（水素）を供給するヘッダー２０と、隣接する２本の円筒型セル１０を直列接続するコネクタ３０にて構成される。以下に各構成部材の詳細を説明する。 The solid oxide fuel cell stack 1 includes a plurality of cylindrical cells 10, a header 20 for supplying fuel gas (hydrogen) to the cylindrical cells 10, and a connector for connecting two adjacent cylindrical cells 10 in series. 30. Details of each component will be described below.
円筒型セル１０は支持体１１の外側に燃料極（触媒層）１２が形成され、この燃料極１２の外側に２層状の固体電解質層１３が形成され、この固体電解質層１３の外側に空気極（触媒層）１４が形成されている。そして、円筒型セル１０の長さ方向の両端部には空気極（触媒層）１４が形成されず、固体電解質層１３が露出している。
上記円筒型セル１０の作製方法の一例を以下に説明する。
In the cylindrical cell 10, a fuel electrode (catalyst layer) 12 is formed outside the support 11, a two-layered solid electrolyte layer 13 is formed outside the fuel electrode 12, and an air electrode is formed outside the solid electrolyte layer 13. (Catalyst layer) 14 is formed. And the air electrode (catalyst layer) 14 is not formed in the both ends of the length direction of the cylindrical cell 10, but the solid electrolyte layer 13 is exposed.
An example of a method for producing the cylindrical cell 10 will be described below.
（円筒型セルの作製）
ＮｉＯ粉末と、（ＺｒＯ２）０．９０（Ｙ２Ｏ３）０．１０組成のＹＳＺ粉末との混合物を湿式混合法で作製後、熱処理、粉砕を行い燃料極支持体原料粉末を得た。ＮｉＯ粉末とＹＳＺ粉末の混合比は重量比で６５／３５とし、該粉末を押出し成形法によって円筒状成形体を作製し、この円筒状成形体を９００℃で熱処理して仮焼体とした。そして、仮焼体の表面に、スラリーコート法によって燃料極反応触媒層、固体電解質層を構成する第１および第２の層の順で成形することで得られた積層成形体を１３００℃で共焼成した。尚、共焼成後の積層成形体の寸法は、外径５ｍｍ、肉厚１ｍｍ、有効セル長１１０ｍｍであった。次いで、セルの両端に幅１０ｍｍずつマスキングを行い、固体電解質層の表面に、スラリーコート法により空気極を成形し、１１００℃で焼成した。
(Production of cylindrical cell)
A mixture of NiO powder and YSZ powder having a composition of (ZrO 2 ) 0.90 (Y 2 O 3 ) 0.10 was prepared by a wet mixing method, followed by heat treatment and pulverization to obtain a fuel electrode support raw material powder. The mixing ratio of the NiO powder and the YSZ powder was 65/35 by weight. A cylindrical molded body was produced by extruding the powder, and the cylindrical molded body was heat treated at 900 ° C. to obtain a calcined body. Then, the laminated molded body obtained by molding the fuel electrode reaction catalyst layer and the first and second layers constituting the solid electrolyte layer in this order on the surface of the calcined body at 1300 ° C. by slurry coating. Baked. The dimensions of the laminated molded body after co-firing were an outer diameter of 5 mm, a wall thickness of 1 mm, and an effective cell length of 110 mm. Next, both ends of the cell were masked by 10 mm in width, an air electrode was formed on the surface of the solid electrolyte layer by a slurry coating method, and fired at 1100 ° C.
（燃料極反応触媒層スラリーの作製）
ＮｉＯ粉末とＧｄ０．１Ｃｅ０．９Ｏ２の組成のＧＤＣ１０粉末との混合物を共沈法で作製後、熱処理を行い燃料極反応触媒層粉末を得た。ＮｉＯ粉末とＧＤＣ１０粉末の混合比は重量比で５０／５０とした。平均粒子径は０．５μｍとなるよう調節した。該粉末４０重量部を溶媒１００重量部、バインダー２重量部、分散剤１重量部、消泡剤１重量部とを混合した後、十分攪拌してスラリーを調整した。
(Preparation of fuel electrode reaction catalyst layer slurry)
A mixture of NiO powder and GDC10 powder having a composition of Gd 0.1 Ce 0.9 O 2 was prepared by a coprecipitation method, and then heat-treated to obtain a fuel electrode reaction catalyst layer powder. The mixing ratio of NiO powder and GDC10 powder was 50/50 by weight. The average particle size was adjusted to 0.5 μm. After mixing 40 parts by weight of the powder with 100 parts by weight of the solvent, 2 parts by weight of the binder, 1 part by weight of the dispersant, and 1 part by weight of the antifoaming agent, the slurry was prepared by sufficiently stirring.
（固体電解質層（第１の層）スラリーの作製）
第１の層の材料は、Ｌａ０．４Ｃｅ０．６Ｏ２の組成のＬＤＣ４０粉末を用いた。ＬＤＣ４０粉末４０重量部を溶媒１００重量部、バインダー２重量部、分散剤１重量部、消泡剤１重量部とを混合した後、十分攪拌してスラリーを調整した。
(Preparation of solid electrolyte layer (first layer) slurry)
As the material of the first layer, LDC40 powder having a composition of La 0.4 Ce 0.6 O 2 was used. A slurry was prepared by mixing 40 parts by weight of LDC 40 powder with 100 parts by weight of a solvent, 2 parts by weight of a binder, 1 part by weight of a dispersant, and 1 part by weight of an antifoaming agent.
（固体電解質層（第２の層）スラリーの作製）
第２の層の材料は、Ｌａ０．８Ｓｒ０．２Ｇａ０．８Ｍｇ０．２Ｏ３の組成のＬＳＧＭ粉末を用いた。ＬＳＧＭ粉末４０重量部を溶媒１００重量部、バインダー２重量部、分散剤１重量部、消泡剤１重量部とを混合した後、十分攪拌してスラリーを調整した。
(Preparation of solid electrolyte layer (second layer) slurry)
As the material of the second layer, LSGM powder having a composition of La 0.8 Sr 0.2 Ga 0.8 Mg 0.2 O 3 was used. After mixing 40 parts by weight of the LSGM powder with 100 parts by weight of the solvent, 2 parts by weight of the binder, 1 part by weight of the dispersant and 1 part by weight of the antifoaming agent, the slurry was prepared by sufficiently stirring.
（空気極スラリーの作製）
空気極の材料は、Ｌａ０．８Ｓｒ０．４Ｃｏ０．８Ｆｅ０．２Ｏ３の組成のＬＳＣＦ粉末を用いた。該粉末４０重量部を溶媒１００重量部、バインダー２重量部、分散剤１重量部、消泡剤１重量部とを混合した後、十分攪拌してスラリーを調整した。
(Preparation of air electrode slurry)
As the material for the air electrode, LSCF powder having a composition of La 0.8 Sr 0.4 Co 0.8 Fe 0.2 O 3 was used. After mixing 40 parts by weight of the powder with 100 parts by weight of the solvent, 2 parts by weight of the binder, 1 part by weight of the dispersant, and 1 part by weight of the antifoaming agent, the slurry was prepared by sufficiently stirring.
前記ヘッダー２０は、インコネル製の中空の箱型形状をなし、側面にはガス供給管２１が接続され、表面には絶縁層２２が形成され、更に前記セル１０の基端部が嵌合するノズル部２３が上方に向かって突出している。 The header 20 has a hollow box shape made of Inconel, a gas supply pipe 21 is connected to the side surface, an insulating layer 22 is formed on the surface, and a nozzle to which the base end of the cell 10 is fitted The part 23 protrudes upward.
上記絶縁層２２を形成するには、ヘッダーを１１００℃で１時間焼成してヘッダー表面に酸化物被膜を形成し、この酸化物被膜の上にスラリーコート法によりセラミック膜を形成し、８００℃で１時間焼成して絶縁層２２を得た。 In order to form the insulating layer 22, the header is baked at 1100 ° C. for 1 hour to form an oxide film on the header surface, and a ceramic film is formed on the oxide film by a slurry coating method at 800 ° C. The insulating layer 22 was obtained by firing for 1 hour.
前記コネクタ３０は第１の集電端子３１、第２の集電端子３２、これら第１の集電端子３１と第２の集電端子３２を電気的に接続する板状をなす導電性連結部材３３から構成される。 The connector 30 includes a first current collecting terminal 31, a second current collecting terminal 32, and a conductive connecting member having a plate shape for electrically connecting the first current collecting terminal 31 and the second current collecting terminal 32. 33.
第１の集電端子３１は、隣接する２つのセルのうちの一方のセル１０の上端に露出する燃料極（触媒層）１２に銀ペーストを用いて電気的に接続され、またセル１０の端部に差し込まれる棒状部３４を備えている。この棒状部３４は装着の際の位置決めと装着後の抜け止めを図っている。また、棒状部３４は内部に燃料ガスが流れる流路３４ａが貫通して形成されている。 The first current collecting terminal 31 is electrically connected using a silver paste to the fuel electrode (catalyst layer) 12 exposed at the upper end of one of the two adjacent cells 10. The rod-shaped part 34 inserted in a part is provided. This rod-shaped portion 34 is intended for positioning during mounting and retaining after mounting. Further, the rod-like portion 34 is formed with a passage 34a through which fuel gas flows.
棒状部３４の長さはセルの内径よりも長く且つセルの電解質露出部と同じかそれよりも短くすることが好ましい。セルの内径よりも長くすることで確実に抜けにくくなり、また、電解質露出部と同じかそれよりも短くすることでセルの内側に十分な電極露出面を確保できる。例えば、セル１０の寸法として、外径５ｍｍ、内径３ｍｍ、両端の電解質露出部１０ｍｍとした場合には、棒状部３４については、外径２．８ｍｍ、内径２．６ｍｍ、長さ１０ｍｍとする。 The length of the rod-shaped portion 34 is preferably longer than the inner diameter of the cell and equal to or shorter than the electrolyte exposed portion of the cell. By making it longer than the inner diameter of the cell, it is difficult to be surely removed, and by making it the same as or shorter than the electrolyte exposed portion, a sufficient electrode exposed surface can be secured inside the cell. For example, when the cell 10 has an outer diameter of 5 mm, an inner diameter of 3 mm, and an electrolyte exposed portion of 10 mm at both ends, the rod-shaped portion 34 has an outer diameter of 2.8 mm, an inner diameter of 2.6 mm, and a length of 10 mm.
また第２の集電端子３２はセル１０を抱持するリング状をなし空気極１４に銀ペーストを用いて電気的に接続されている。集電端子３２の形状はリング状に限らず、セル１０を抱持できる形状であればよく、例えば一端が開いたＣリング状であってもよい。
例えば、前記と同じセルの場合には、この集電端子３２の寸法については、外径８ｍｍ、内径６ｍｍ、長さ８ｍｍとする。
The second current collecting terminal 32 has a ring shape for holding the cell 10 and is electrically connected to the air electrode 14 using silver paste. The shape of the current collecting terminal 32 is not limited to the ring shape, and may be any shape that can hold the cell 10.
For example, in the case of the same cell as described above, the current collecting terminal 32 has an outer diameter of 8 mm, an inner diameter of 6 mm, and a length of 8 mm.
ここで、図８（ａ）〜（ｄ）に示すように、コネクタ３０は全て同じ形状をしているのではなく、本実施例にあっては４種類のコネクタ３０を用いている。４種類のコネクタ３０の主な相違点は導電性連結部材３３の長さと向きであり、本実施例にあっては、異なる４種類のコネクタを用意することで、図７にも示したように、隣接するコネクタ３０の第２の集電端子３２同士がセルの長さ方向で交互に配置されており、セル間隔を狭めていっても隣接する第２の集電端子３２同士が接触することがないようにしている。 Here, as shown in FIGS. 8A to 8D, the connectors 30 are not all in the same shape, and in this embodiment, four types of connectors 30 are used. The main difference between the four types of connectors 30 is the length and orientation of the conductive connecting member 33. In this embodiment, four different types of connectors are prepared, as shown in FIG. The second current collecting terminals 32 of the adjacent connectors 30 are alternately arranged in the cell length direction, and the adjacent second current collecting terminals 32 are in contact with each other even if the cell interval is narrowed. There is no such thing.
以上のスタックを組み立てるには、先ず、ヘッダー１０表面の絶縁層２２とセル１０の端部とが嵌合するノズル部２３にガラスペーストを塗布し、最初の隣り合う１本目と２本目のセル１０をノズル部２３に嵌合する。 In order to assemble the above stack, first, glass paste is applied to the nozzle portion 23 in which the insulating layer 22 on the surface of the header 10 and the end portion of the cell 10 are fitted, and the first adjacent first and second cells 10 are applied. Is fitted to the nozzle portion 23.
次いで、１本目のセル１０の燃料極支持体の端部と２本目のセル１０の空気極（外周面）に銀ペーストを塗布する。そして、コネクタ３０の第１の集電端子３１の棒状部３４を１本目のセル１０の端部（上端部）に差込み、リング状をなす第２の集電端子３２を空気極に外嵌する。 Next, a silver paste is applied to the end of the fuel electrode support of the first cell 10 and the air electrode (outer peripheral surface) of the second cell 10. And the rod-shaped part 34 of the 1st current collection terminal 31 of the connector 30 is inserted in the edge part (upper end part) of the 1st cell 10, and the 2nd current collection terminal 32 which makes | forms a ring shape is externally fitted to an air electrode. .
このようにして、最初の２本のセル１０を直列接続したならば、３本目のセル１０を２本目のセル１０の隣のノズル部２３に嵌合し、別のコネクタを用いて第２の
セルの燃料極と３本目のセルの空気極とを接続する。このように順番に直列接続することで、スタックを構成するセルが全て直列接続された燃料電池スタックが得られる。
In this way, if the first two cells 10 are connected in series, the third cell 10 is fitted into the nozzle portion 23 adjacent to the second cell 10, and the second cell 10 is connected using another connector. The fuel electrode of the cell and the air electrode of the third cell are connected. By connecting in series in this way, a fuel cell stack in which all the cells constituting the stack are connected in series is obtained.
１…固体酸化物形燃料電池スタック
１０…円筒型セル
１１…支持体
１２…燃料極（触媒層）
１３…固体電解質層
１４…空気極（触媒層）
２０…ヘッダー
２１…ガス供給管
２２…絶縁層
２３…ノズル部
３０…コネクタ
３１…第１の集電端子
３２…第２の集電端子
３３…導電性連結部材
３４…棒状部
DESCRIPTION OF SYMBOLS 1 ... Solid oxide fuel cell stack 10 ... Cylindrical cell 11 ... Support body 12 ... Fuel electrode (catalyst layer)
13 ... Solid electrolyte layer 14 ... Air electrode (catalyst layer)
DESCRIPTION OF SYMBOLS 20 ... Header 21 ... Gas supply pipe 22 ... Insulating layer 23 ... Nozzle part 30 ... Connector 31 ... 1st current collection terminal 32 ... 2nd current collection terminal 33 ... Conductive connection member 34 ... Rod-shaped part
Claims (4)
The solid oxide fuel cell stack according to any one of claims 1 to 3, wherein a first current collecting terminal of one cell of two adjacent cells and a second current collecting terminal of the other cell Is a connector integrated with a conductive connecting member, a solid oxide fuel cell stack.
Priority Applications (1)
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| JP2005281934A JP2007095442A (en) | 2005-09-28 | 2005-09-28 | Solid oxide fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005281934A JP2007095442A (en) | 2005-09-28 | 2005-09-28 | Solid oxide fuel cell |
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| JP2007095442A true JP2007095442A (en) | 2007-04-12 |
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Cited By (12)
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| JP2009129717A (en) * | 2007-11-23 | 2009-06-11 | Toto Ltd | Fuel cell stack, fuel cell module including the same, fuel cell including the same, and method for manufacturing fuel cell module |
| JP2010009945A (en) * | 2008-06-27 | 2010-01-14 | Toto Ltd | Fuel cell unit |
| JP2010015807A (en) * | 2008-07-03 | 2010-01-21 | Toto Ltd | Solid oxide fuel cell, solid oxide fuel cell unit, and fuel cell module equipped with the same |
| JP2010055862A (en) * | 2008-08-27 | 2010-03-11 | Toto Ltd | Fuel cell unit |
| EP2178145A1 (en) | 2008-10-16 | 2010-04-21 | Toto Ltd. | Solid Oxide Fuel Cell and Fuel Cell Module Comprising such a Solid Oxide Fuel Cell |
| JP2010140895A (en) * | 2008-11-11 | 2010-06-24 | Toto Ltd | Solid oxide fuel cell, and fuel cell module having the same |
| KR101055464B1 (en) | 2009-09-10 | 2011-08-08 | 삼성전기주식회사 | Solid Oxide Fuel Cells and Solid Oxide Fuel Cell Bundles |
| JP2011210632A (en) * | 2010-03-30 | 2011-10-20 | Toto Ltd | Cell assembly of fuel cell |
| EP2610953A1 (en) | 2011-12-29 | 2013-07-03 | Toto Ltd. | Solid oxide fuel battery cell |
| US8617761B2 (en) | 2009-08-04 | 2013-12-31 | Samsung Electro-Mechanics Co., Ltd. | Fuel cell having current-collectable manifold |
| JP2018098081A (en) * | 2016-12-14 | 2018-06-21 | Toto株式会社 | Solid oxide fuel cell stack |
| JP2018129245A (en) * | 2017-02-10 | 2018-08-16 | Toto株式会社 | Fuel cell unit and fuel cell stack |
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| JP2018129245A (en) * | 2017-02-10 | 2018-08-16 | Toto株式会社 | Fuel cell unit and fuel cell stack |
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