JPH06302330A - Solid electrolyte type electrolytic cell - Google Patents
Solid electrolyte type electrolytic cellInfo
- Publication number
- JPH06302330A JPH06302330A JP5091253A JP9125393A JPH06302330A JP H06302330 A JPH06302330 A JP H06302330A JP 5091253 A JP5091253 A JP 5091253A JP 9125393 A JP9125393 A JP 9125393A JP H06302330 A JPH06302330 A JP H06302330A
- Authority
- JP
- Japan
- Prior art keywords
- solid electrolyte
- particle layer
- cell
- electrode
- fuel electrode
- 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- Withdrawn
Links
- 239000007784 solid electrolyte Substances 0.000 title claims abstract description 37
- 239000000446 fuel Substances 0.000 claims abstract description 49
- 239000002245 particle Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000005868 electrolysis reaction Methods 0.000 claims description 3
- 239000010419 fine particle Substances 0.000 abstract description 19
- 238000006243 chemical reaction Methods 0.000 abstract description 14
- 239000011362 coarse particle Substances 0.000 abstract description 8
- 239000001301 oxygen Substances 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000007772 electrode material Substances 0.000 abstract description 3
- 239000003792 electrolyte Substances 0.000 abstract 3
- 239000010410 layer Substances 0.000 description 23
- 239000007787 solid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- -1 oxygen ions Chemical class 0.000 description 2
- 230000005501 phase interface Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241001178829 Konia Species 0.000 description 1
- 229910002328 LaMnO3 Inorganic materials 0.000 description 1
- 229910018279 LaSrMnO Inorganic materials 0.000 description 1
- 229910002830 PrOx Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910000473 manganese(VI) oxide Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000000629 steam reforming Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 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)
- Inert Electrodes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は円筒型固体電解質燃料電
池（ＳＯＦＣ）や高温水蒸気電解セル（ＳＯＳＥ）にお
けるような固体電解質型電解セルに関する。FIELD OF THE INVENTION The present invention relates to a solid electrolyte type electrolytic cell such as a cylindrical solid oxide fuel cell (SOFC) or a high temperature steam electrolytic cell (SOSE).
【０００２】[0002]
【従来の技術】従来の固体電解質型電解セルの一例とし
て、従来の円筒型ＳＯＦＣの構成（断面）図を図４に示
し、これによって従来技術を説明する。ＳＯＦＣは基体
管１、燃料極２、固体電解質３、空気極４を積層したも
のからなり、これをインタコネクタ５により接続して、
構成されている。燃料極２側に水素や一酸化炭素などの
燃焼を供給し、空気極４側に酸素を含んだ空気を供給す
ると、作動温度９００〜１，０００℃にて酸素イオンが
固体電解質３中を移動して電気が取り出せる装置であ
る。図４中、６は電流の流れを示す。2. Description of the Related Art As an example of a conventional solid electrolyte type electrolytic cell, a configuration (cross-section) of a conventional cylindrical SOFC is shown in FIG. 4, and the conventional technique will be described. The SOFC comprises a stack of a base tube 1, a fuel electrode 2, a solid electrolyte 3 and an air electrode 4, which are connected by an interconnector 5,
It is configured. When combustion such as hydrogen or carbon monoxide is supplied to the fuel electrode 2 side and air containing oxygen is supplied to the air electrode 4 side, oxygen ions move in the solid electrolyte 3 at an operating temperature of 900 to 1,000 ° C. It is a device that can generate electricity. In FIG. 4, 6 shows the flow of electric current.
【０００３】また、図５に従来の円筒型ＳＯＦＣの断面
組織の模式図を示すが、基体管１はポーラスなセラミッ
クスチューブであり、Ｙ2 Ｏ3 ，ＣａＯ，ＭｇＯなどを
ドープしたジルコニアあるいはＡｌ2 Ｏ3 などが使用さ
れている。固体電解質３はＹ 2 Ｏ3 で安定化されたジル
コニア（ＹＳＺ）などが使われ、緻密でガスタイトな膜
であるのに対して、燃料極２、空気極４は比較的粒径の
大きいセラミックス粉が使われ多孔質な膜である。燃料
極としてはＮｉＯ／ＹＳＺ（ＹＳＺの代わりとしてはＣ
ｅＯx ，ＣｅＯx −ＳｍＯy ，ＰｒＯx など）、ＮｉＯ
などが使用され、空気極にはＬａＣｏＯ3 ，Ｌａ1-x Ｓ
ｒx ＭｎＯ3 ，ＬａＭｎＯ3 などのようなＡＢＯ3 のペ
ロブスカイト型酸化物が使われている。Further, FIG. 5 shows a cross section of a conventional cylindrical SOFC.
A schematic diagram of the structure is shown, but the base tube 1 is a porous ceramic
It's a tube and Y2O3, CaO, MgO, etc.
Doped zirconia or Al2O3Used by
Has been. Solid electrolyte 3 is Y 2O3Stabilized with Jill
Dense and gas-tight film using Konia (YSZ)
On the other hand, the fuel electrode 2 and the air electrode 4 have a relatively small particle size.
It is a porous film that uses large ceramic powder. fuel
NiO / YSZ as the pole (C as an alternative to YSZ
eOx, CeOx-SmOy, PrOxEtc.), NiO
Etc. are used, and LaCoO is used for the air electrode.3, La1-xS
rxMnO3, LaMnO3ABO such as3The bae
Robskite type oxide is used.
【０００４】[0004]
【発明が解決しようとする課題】図６と図７にそれぞれ
燃料極側、空気極側の反応の状況、機構をガス（分
子）、イオン及び電子の移動で示した。FIGS. 6 and 7 show the state of reaction and the mechanism of the reaction on the fuel electrode side and the air electrode side, respectively, by the movement of gas (molecule), ion and electron.
【０００５】燃料極側の反応としては図６の（ａ），
（ｂ）のように模式的に表わされる。 〇 図６（ａ）：Ｈ2 分子が燃料極のＮｉ粒子表面でＨ
+ イオンに活性化され、Ｎｉ粒子表面を３相界面へ移動
して、固体電解質を通って空気極側から移動してきたＯ
2-イオンと燃料極（Ｎｉ粒子）、固体電解質、気相の３
相界面で反応してＨ2 Ｏ分子を生成する。このとき、ｅ
- （電子）の移動があるので発生したｅ-は燃料極（Ｎ
ｉ）中を移動していく。 〇 図６（ｂ）：この場合はＨ2 分子が上記の３相界面
でＨ+ イオンに活性化され、固体電解質表面を移動しな
がら、Ｏ2-イオンと反応しＨ2 Ｏ分子を生成する。発生
したｅ- は固体電解質表層から燃料極へ移動し、この電
極中を移動していく。 図６（ａ）と図６（ｂ）では若干、現象（３相界面の役
割）が異なるが、反応としては同じである。The reaction on the fuel electrode side is shown in FIG.
It is schematically represented as (b). 〇 Figure 6 (a): H 2 molecules are H on the Ni particle surface of the fuel electrode.
O activated by + ions, moved to the three-phase interface on the Ni particle surface, and moved from the air electrode side through the solid electrolyte.
2- ion and fuel electrode (Ni particles), solid electrolyte, gas phase 3
It reacts at the phase interface to produce H 2 O molecules. At this time, e
- e movement that occurred because of the (electronic) - fuel electrode (N
i) Move inside. ○ FIG. 6 (b): In this case, H 2 molecules are activated by H + ions at the above-mentioned three-phase interface, and while moving on the solid electrolyte surface, react with O 2− ions to generate H 2 O molecules. . The generated e − moves from the surface layer of the solid electrolyte to the fuel electrode and moves in this electrode. Although the phenomenon (role of the three-phase interface) is slightly different between FIG. 6A and FIG. 6B, the reaction is the same.
【０００６】空気極側の反応としては図７の（ａ），
（ｂ）のように模式的に表わされる。 〇 図７（ａ）：空気中のＯ2 分子が空気極のペロブス
カイト型酸化物粒子表面で電極中を移動してきたｅ
- （電子）を受けとってＯ2-イオンとなり、この粒子中
を移動して３相界面を通って活性化され、固体電解質中
を燃料極側へ移動していく。 〇 図７（ｂ）：この場合はＯ2 分子が先ず空気極のペ
ロブスカイト型酸化物粒子表面に吸着して、粒子表面を
移動していく過程で活性化され、電極中を移動してきた
ｅ- を受けとってＯ2-イオンになる。あるいはＯ2 分子
が３相界面へ直接アタックしてｅ- を受けとってＯ2-イ
オンとなる。こののち、固体電解質中を燃料極側へ移動
していく。 図７（ａ）と図７（ｂ）では若干、現象が異なるが、考
えられる現象である。The reaction on the air electrode side is shown in FIG.
It is schematically represented as (b). ○ FIG. 7 (a): O 2 molecules in the air have moved in the electrode on the surface of the perovskite type oxide particles of the air electrode e
- be receiving an (electronic) O 2-ions, this is the particles move activated through the 3-phase interface, moves the solid electrolyte to the fuel electrode side. 〇 Fig. 7 (b): In this case, O 2 molecules are first adsorbed on the surface of the perovskite type oxide particles of the air electrode, activated in the process of moving on the particle surface, and moved in the electrode e − Then, it becomes O 2- ion. Alternatively, O 2 molecules directly attack the three-phase interface to receive e − and become O 2− ions. After that, the solid electrolyte moves to the fuel electrode side. Although the phenomenon is slightly different between FIG. 7A and FIG. 7B, it is a possible phenomenon.
【０００７】従来の燃料電池では燃料極と固体電解質、
空気極と固体電解質ともに界面の電極の粒子径が比較的
大きく、このために反応の場となり得る３相界面（固−
固−気）が全体的に少なく、図８に示すように反応（活
性化）分極ηa に相当する抵抗が大きくその分性能（セ
ル電圧）が上がらないという課題があった。In the conventional fuel cell, the fuel electrode and the solid electrolyte,
Both the air electrode and the solid electrolyte have a relatively large particle size of the electrode at the interface, which makes it possible to become a reaction field.
There is a problem in that solid-gas) is small as a whole, and as shown in FIG. 8, the resistance corresponding to the reaction (activation) polarization ηa is large and the performance (cell voltage) is not increased correspondingly.
【０００８】本発明は上記技術水準に鑑み、性能の優れ
た固体電解質型電解セルを提供しようとするものであ
る。In view of the above-mentioned state of the art, the present invention aims to provide a solid electrolyte type electrolytic cell having excellent performance.
【０００９】[0009]
【課題を解決するための手段】本発明は燃料極、固体電
解質、空気極の順で積層されている固体電解質型電解セ
ルにおいて、空気極及び燃料極の材料の粒径を異材との
界面に向うほど微粒にするように変化させてなることを
特徴とする固体電解質型電解セルである。According to the present invention, in a solid electrolyte type electrolysis cell in which a fuel electrode, a solid electrolyte and an air electrode are laminated in this order, the particle diameters of the materials of the air electrode and the fuel electrode are set to the interface with a different material. The solid electrolyte type electrolytic cell is characterized in that it is changed so as to become finer particles as it goes.
【００１０】本発明の固体電解質型電解セルの一態様を
図１によって更に詳細に説明する。図１に示すように、
固体電解質３の片側に空気極４の微粒層４ａを成膜し、
固体電解質３を離れるに向って次第に粗粒となる粗粒層
４ｂを成膜する。また、固体電解質３の他側に燃料極２
の微粒層２ａを成膜し、固体電解質３を離れに向って次
第に粗粒となる粗粒層２ｂを成膜し、さらに支持体とな
る基体管１に向うに従って微粒となる微粒層２ａ′を基
体管１に接して成膜する。One embodiment of the solid electrolyte type electrolytic cell of the present invention will be described in more detail with reference to FIG. As shown in Figure 1,
The fine particle layer 4a of the air electrode 4 is formed on one side of the solid electrolyte 3,
A coarse particle layer 4b is formed which gradually becomes coarser as it goes away from the solid electrolyte 3. Further, the fuel electrode 2 is provided on the other side of the solid electrolyte 3.
Of the fine particle layer 2a, a coarse particle layer 2b which gradually becomes coarser away from the solid electrolyte 3 is formed, and a fine particle layer 2a 'which becomes finer toward the substrate tube 1 as a support is formed. A film is formed in contact with the substrate tube 1.
【００１１】上記態様は支持体となる基体管１を燃料極
２側に設けた場合を示したが、基体管１を空気極４側に
設けてもよく、その場合には空気極４と基体管１が接す
る界面は上述のように微粒層とする。In the above embodiment, the base tube 1 serving as a support is provided on the fuel electrode 2 side. However, the base tube 1 may be provided on the air electrode 4 side. In that case, the air electrode 4 and the substrate are provided. The interface with which the tube 1 contacts is the fine particle layer as described above.
【００１２】さらに、本発明の固体電解質電解セルは支
持体となる基体管を必ずしも設ける必要はなく、その場
合にはいずれから電極を支持体とする。Further, in the solid electrolyte electrolytic cell of the present invention, it is not always necessary to provide a substrate tube as a support, and in that case, the electrode is used as the support from any one of them.
【００１３】[0013]
【作用】図１に示した微粒層４ａ及び微粒層２ｂにより
図２に示すように反応（活性化）分極に相当する内部抵
抗が低減され、セル性能が向上し、作動点におけるセル
電圧が向上する。With the fine particle layer 4a and the fine particle layer 2b shown in FIG. 1, the internal resistance corresponding to the reaction (activation) polarization is reduced as shown in FIG. 2, the cell performance is improved, and the cell voltage at the operating point is improved. To do.
【００１４】[0014]
【実施例】以下、本発明の一実施例を前述の図１によっ
て説明する。ポーラスな基体管１上に微粒層２ａ′→粗
粒層２ｂ→微粒層２ａと粒径を傾斜的に変化させた燃料
極２を成膜し、その上に緻密でガスタイトな固体電解質
３膜を成膜する。そして固体電解質３の他面に微粒層４
ａ→粗粒層４ｂへと粒径を変化させた空気極４を成膜し
て固体電解質型燃料電池のセルを構成する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. On the porous substrate tube 1, a fine particle layer 2a ′ → a coarse particle layer 2b → a fine particle layer 2a and a fuel electrode 2 whose particle diameter is gradually changed are formed, and a dense and gas tight solid electrolyte 3 film is formed thereon. Form a film. Then, on the other surface of the solid electrolyte 3, a fine particle layer 4 is formed.
The cell of the solid oxide fuel cell is formed by forming the air electrode 4 with the particle size changed from a to the coarse particle layer 4b.
【００１５】図１の左側の各種の材料の具体例を示して
いるが、これらについて説明する。基体管１は１３〜１
７モル％のＣａＯをドープしたジルコニア（ＣＳＺ）で
あって、押出し成形、鋳込成形などによって成形された
ものである。燃料極２は数μｍ〜１０数μｍのＮｉＯ／
ＹＳＺ（１２〜１４ｗｔ％Ｙ2 Ｏ3 安定化ＺｒＯ2 ）よ
りなる微粒層２ａ′、１０〜３５μｍのＮｉＯよりなる
粗粒層２ｂ及び数μｍ〜１０数μｍのＮｉＯ／ＹＳＺ
（同上）よりなる微粒層２ａよりなる。固体電解質３は
緻密なＹＳＺよりなる。空気極４は数μｍ〜４０μｍの
ＬａＳｒＭｎＯ3（またはＬａＣａＭｎＯ3 ）よりなる
微粒層４ａと４０〜１２０μｍのＬａＣｏＯ3 よりなる
粗粒層４ｂよりなる。空気極材料、燃料極材料は溶射法
かスラリ塗布−焼成法によって成膜することができる。Specific examples of various materials on the left side of FIG. 1 are shown. These will be described. The base tube 1 is 13 to 1
It is zirconia (CSZ) doped with 7 mol% of CaO and is formed by extrusion molding, cast molding or the like. The fuel electrode 2 is NiO / several μm to several dozen μm.
Fine particle layer 2a ′ made of YSZ (12 to 14 wt% Y 2 O 3 stabilized ZrO 2 ), coarse particle layer 2b made of NiO of 10 to 35 μm, and NiO / YSZ of several μm to several dozen μm.
(Same as above). The solid electrolyte 3 is made of dense YSZ. The air electrode 4 is made of coarse layer 4b made of LaCoO 3 for fine layer 4a and 40~120μm consisting number μm~40μm of LaSrMnO 3 (or LaCaMnO 3). The air electrode material and the fuel electrode material can be formed into a film by a thermal spraying method or a slurry coating-firing method.
【００１６】上記の例で、空気極の微粒層４ａをＬａＳ
ｒＭｎＯ3 （またはＬａＣａＭｎＯ 3 ）としたのはＭｎ
系の方が熱膨張率の点で固体電解質との整合性があるた
めであり、粗粒層４ｂをＬａＣｏＯ3 としたのは、この
方が抵抗が小さいからである。In the above example, the fine particle layer 4a of the air electrode is LaS.
rMnO3(Or LaCaMnO 3) Is Mn
The system is more consistent with the solid electrolyte in terms of coefficient of thermal expansion.
Therefore, the coarse particle layer 4b is formed of LaCoO.3And this is
This is because the resistance is smaller.
【００１７】この実施例によれば、燃料極２の微粒層２
ａにより燃料極２と固体電解質３間の界面において、３
相界面が増え図６で示すような燃料極側での反応に寄因
する抵抗が低減され、その分セル性能が向上する。また
空気極４の微粒層４ａにより空気極４と固体電解質３間
の界面において３相界面が増え、図７で示すような空気
極側での空気中の酸素（Ｏ2 ）の酸素イオン（Ｏ2 ）に
なる反応に寄因する抵抗が低減され、その分セル性能が
向上する。またこの実施例によれば、図１に示すよう
に、基体管１側の燃料極側にも微粒層２ａ′を設けてい
るのでメタンガス（ＣＨ4 ) などを含んだ天然ガスなど
を燃料として用いＣＨ4 ＋Ｈ2 Ｏ→３Ｈ2＋ＣＯで示さ
れる燃料改質（ＣＨ4 の水蒸気改質）が燃料極側で行わ
れる際に、この微粒層２ａ′が燃料極（Ｎｉ）の触媒作
用を向上させ燃料の改質を効率よく行わせることになり
燃料電極の性能、セルの性能を向上させることができ
る。以上により、図２に示すように作動点においてセル
電圧の向上、つまり図３に示すように、燃料利用率の向
上が期待できる。According to this embodiment, the fine particle layer 2 of the fuel electrode 2 is used.
At the interface between the fuel electrode 2 and the solid electrolyte 3 by a, 3
The number of phase interfaces increases and the resistance due to the reaction on the fuel electrode side as shown in FIG. 6 is reduced, and the cell performance is improved accordingly. Further, the three-phase interface increases at the interface between the air electrode 4 and the solid electrolyte 3 due to the fine particle layer 4a of the air electrode 4, and oxygen ions (O 2 ) of oxygen (O 2 ) in the air on the air electrode side (O 2 ) as shown in FIG. The resistance caused by the reaction 2 ) is reduced, and the cell performance is improved accordingly. According to this embodiment, used as shown in FIG. 1, a natural gas containing such methane (CH 4) Since there is provided a fine layer 2a 'even the fuel electrode side of the substrate tube 1 side as a fuel When the fuel reforming (CH 4 steam reforming) represented by CH 4 + H 2 O → 3H 2 + CO is performed on the fuel electrode side, this fine particle layer 2a ′ improves the catalytic action of the fuel electrode (Ni). The fuel can be reformed efficiently, and the performance of the fuel electrode and the performance of the cell can be improved. From the above, it can be expected that the cell voltage is improved at the operating point as shown in FIG. 2, that is, the fuel utilization rate is improved as shown in FIG.
【００１８】[0018]
【発明の効果】本発明により、性能の優れた固体電解質
型電解セルを提供することができる。According to the present invention, a solid electrolyte type electrolytic cell having excellent performance can be provided.
【図１】本発明の固体電解質型電解セルの一態様の説明
図。FIG. 1 is an explanatory diagram of one embodiment of a solid electrolyte type electrolytic cell of the present invention.
【図２】本発明の一実施例のセル性能の向上を示すｉ−
Ｖ特性図表。FIG. 2 is a graph showing an improvement in cell performance of an embodiment of the present invention i-
V characteristic chart.
【図３】本発明の一実施例のセル性能及び燃料利用率の
向上を示す図表。FIG. 3 is a chart showing improvement in cell performance and fuel utilization rate according to an embodiment of the present invention.
【図４】円筒型固体電解質型燃料電池のセル構成及び原
理の説明図。FIG. 4 is an explanatory diagram of a cell configuration and a principle of a cylindrical solid oxide fuel cell.
【図５】従来の円筒型固体電解質型燃料電池のセル構成
図。FIG. 5 is a cell configuration diagram of a conventional cylindrical solid oxide fuel cell.
【図６】固体電解質型燃料電池の燃料極側の反応状況の
説明図。FIG. 6 is an explanatory diagram of a reaction situation on the fuel electrode side of a solid oxide fuel cell.
【図７】固体電解質型燃料電池の空気極側の反応状況の
説明図。FIG. 7 is an explanatory diagram of a reaction state on the air electrode side of a solid oxide fuel cell.
【図８】従来の固体電解質型燃料電池のセル性能を示す
ｉ−Ｖ特性図表。FIG. 8 is an i-V characteristic chart showing cell performance of a conventional solid oxide fuel cell.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 神前 潤一 長崎県長崎市飽の浦町１番１号 三菱重工 業株式会社長崎造船所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Junichi Kamima 1-1 1-1 Atsunoura-machi, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries, Ltd. Nagasaki Shipyard Co., Ltd.
Claims (1)
されている固体電解質型電解セルにおいて、空気極及び
燃料極の材料の粒径を異材との界面に向うほど微粒にす
るように変化させてなることを特徴とする固体電解質型
電解セル。1. In a solid electrolyte type electrolysis cell in which a fuel electrode, a solid electrolyte and an air electrode are laminated in this order, the particle size of the material of the air electrode and the fuel electrode is made finer toward the interface with the dissimilar material. A solid electrolyte type electrolysis cell characterized by being changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5091253A JPH06302330A (en) | 1993-04-19 | 1993-04-19 | Solid electrolyte type electrolytic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5091253A JPH06302330A (en) | 1993-04-19 | 1993-04-19 | Solid electrolyte type electrolytic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06302330A true JPH06302330A (en) | 1994-10-28 |
Family
ID=14021267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5091253A Withdrawn JPH06302330A (en) | 1993-04-19 | 1993-04-19 | Solid electrolyte type electrolytic cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06302330A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009522748A (en) * | 2006-01-09 | 2009-06-11 | サン−ゴバン セラミックス アンド プラスティクス，インコーポレイティド | Fuel cell assembly having porous electrodes |
| JP2012054224A (en) * | 2010-09-02 | 2012-03-15 | Samsung Electro-Mechanics Co Ltd | Solid oxide fuel cell |
| US8771901B2 (en) | 2006-04-05 | 2014-07-08 | Saint-Gobain Ceramics & Plastics, Inc. | SOFC stack having a high temperature bonded ceramic interconnect and method for making same |
| WO2025146792A1 (en) * | 2024-01-04 | 2025-07-10 | 日本特殊陶業株式会社 | Solid oxide electrolysis cell and use of same |
-
1993
- 1993-04-19 JP JP5091253A patent/JPH06302330A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009522748A (en) * | 2006-01-09 | 2009-06-11 | サン−ゴバン セラミックス アンド プラスティクス，インコーポレイティド | Fuel cell assembly having porous electrodes |
| US8771901B2 (en) | 2006-04-05 | 2014-07-08 | Saint-Gobain Ceramics & Plastics, Inc. | SOFC stack having a high temperature bonded ceramic interconnect and method for making same |
| JP2012054224A (en) * | 2010-09-02 | 2012-03-15 | Samsung Electro-Mechanics Co Ltd | Solid oxide fuel cell |
| WO2025146792A1 (en) * | 2024-01-04 | 2025-07-10 | 日本特殊陶業株式会社 | Solid oxide electrolysis cell and use of same |
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