JP2003282091A - Mixed gas supply method and apparatus for mixed gas type solid oxide fuel cell - Google Patents
Mixed gas supply method and apparatus for mixed gas type solid oxide fuel cellInfo
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- JP2003282091A JP2003282091A JP2002085541A JP2002085541A JP2003282091A JP 2003282091 A JP2003282091 A JP 2003282091A JP 2002085541 A JP2002085541 A JP 2002085541A JP 2002085541 A JP2002085541 A JP 2002085541A JP 2003282091 A JP2003282091 A JP 2003282091A
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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
- 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
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Abstract
(57)【要約】
【課題】 正極と負極の両極に同一混合ガスを流して、
起電・発電した場合に生じる正極の著しい損傷が回避さ
れるとともに、燃料の利用効率の向上を図り得る混合ガ
ス型固体酸化物燃料電池の混合ガス供給方法およびその
装置を提供する。
【解決手段】 第１の流路２に、まず、燃料と空気の混
合ガス１が供給されて、円筒状の空気極（正極：アノー
ド）３で十分なる反応が行われる。次いで、そこで反応
した混合ガス８は、円筒状の燃料極（負極：カソード）
５で十分に反応した後に排出される。
(57) [Summary] [PROBLEMS] By flowing the same mixed gas to both the positive electrode and the negative electrode,
A mixed gas supply method and apparatus for a mixed gas solid oxide fuel cell capable of avoiding remarkable damage to a positive electrode caused by electromotive force and power generation and improving fuel utilization efficiency. SOLUTION: First, a mixed gas 1 of fuel and air is supplied to a first flow path 2 and a sufficient reaction is performed in a cylindrical air electrode (positive electrode: anode) 3. Next, the mixed gas 8 reacted therein is converted into a cylindrical fuel electrode (negative electrode: cathode).
It is discharged after sufficiently reacting in step 5.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、混合ガス型固体酸
化物燃料電池の混合ガス供給方法およびその装置に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixed gas supply method and apparatus for a mixed gas type solid oxide fuel cell.
【０００２】[0002]
【従来の技術】従来、このような分野の技術としては、
以下に示すようなものがあった。2. Description of the Related Art Conventionally, as a technique in such a field,
There was something like the following.
【０００３】混合ガス型の固体酸化物型燃料電池は、空
気極および燃料極に燃料と空気よりなる同一混合ガスを
供給するようにしている。In a mixed gas type solid oxide fuel cell, the same mixed gas of fuel and air is supplied to an air electrode and a fuel electrode.
【０００４】図５は混合ガス型の固体酸化物型燃料電池
の機能を示す模式図である。FIG. 5 is a schematic view showing the function of a mixed gas type solid oxide fuel cell.
【０００５】この図において、１０１は空気極（正極：
アノード）、１０２は固体イオン伝導性酸化物からなる
電解質、１０３は燃料極（負極：カソード）、１０４は
空気極１０１で反応するＨ2 、１０５は燃料極１０３で
反応するＯ2 、１０６は外部回路、１０７はその外部回
路に接続される負荷である。In this figure, 101 is an air electrode (positive electrode:
(Anode), 102 is an electrolyte made of a solid ion conductive oxide, 103 is a fuel electrode (negative electrode: cathode), 104 is H 2 which reacts at the air electrode 101, 105 is O 2 which reacts at the fuel electrode 103, and 106 is external The circuit 107 is a load connected to the external circuit.
【０００６】そこで、空気極１０１では空気中の酸素Ｏ
2 １０５が電子を受け取り、酸素イオンとなり、この酸
素イオンは空気極１０１から電解質１０２に入り拡散す
る。したがって、電解質１０２中の酸素イオンは空気極
１０１から燃料極１０３へと移動する。燃料極１０３で
は酸素イオンと燃料が反応して電子を取り出す。この電
子は、外部回路１０６を通って空気極１０１へと流れ、
外部回路１０６の途中にある負荷１０７で仕事をする。Therefore, in the air electrode 101, oxygen O in the air
2 105 receives an electron and becomes an oxygen ion, and this oxygen ion diffuses into the electrolyte 102 from the air electrode 101. Therefore, oxygen ions in the electrolyte 102 move from the air electrode 101 to the fuel electrode 103. At the fuel electrode 103, oxygen ions react with the fuel to take out electrons. This electron flows through the external circuit 106 to the cathode 101,
The load 107 in the middle of the external circuit 106 works.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、空気極
（正極：アノード）側に供給された燃料は反応すること
なく捨てられることになる。燃料の利用効率を向上させ
るには、混合ガスを燃料極（負極：カソード）に流した
後に空気極（正極：アノード）に流すか、あるいは空気
極（正極：アノード）に流した後に燃料極（負極：カソ
ード）に流すかが考えられるが、どちらがより有効か分
かっていなかった。However, the fuel supplied to the air electrode (positive electrode: anode) side is discarded without reacting. In order to improve the fuel utilization efficiency, the mixed gas is flowed to the fuel electrode (negative electrode: cathode) and then to the air electrode (positive electrode: anode), or to the air electrode (positive electrode: anode) and then to the fuel electrode ( It may be possible to pass it to the negative electrode: cathode, but it was not known which was more effective.
【０００８】そこで、本発明は、これらの問題点を解決
するためになされたものであり、正極と負極の両極に同
一混合ガスを流して、起電・発電した場合に生じる正極
の著しい損傷が回避されるとともに、燃料の利用効率の
向上を図り得る混合ガス型固体酸化物燃料電池の混合ガ
ス供給方法およびその装置を提供することを目的とす
る。Therefore, the present invention has been made in order to solve these problems, and causes significant damage to the positive electrode when electromotive power is generated by flowing the same mixed gas into both the positive electrode and the negative electrode. It is an object of the present invention to provide a mixed gas supply method for a mixed gas type solid oxide fuel cell and a device therefor, which can be avoided and can improve fuel utilization efficiency.
【０００９】[0009]
【課題を解決するための手段】本発明は、上記目的を達
成するために、
〔１〕混合ガス型固体酸化物燃料電池の混合ガス供給方
法において、燃料と空気の混合ガスを正極に流し、その
後、その正極で反応した混合ガスを負極に流すことを特
徴とする。In order to achieve the above object, the present invention provides [1] a mixed gas supply method for a mixed gas type solid oxide fuel cell, in which a mixed gas of fuel and air is caused to flow to a positive electrode, After that, the mixed gas reacted at the positive electrode is flown to the negative electrode.
【００１０】〔２〕混合ガス型固体酸化物燃料電池の混
合ガス供給装置において、燃料と空気の混合ガスを正極
に供給する第１のガス供給手段と、この第１のガス供給
手段で反応した混合ガスを負極に供給する第２のガス供
給手段とを具備することを特徴とする。[2] In a mixed gas supply device for a mixed gas type solid oxide fuel cell, a first gas supply means for supplying a mixed gas of fuel and air to a positive electrode and a reaction by the first gas supply means A second gas supply means for supplying the mixed gas to the negative electrode.
【００１１】〔３〕混合ガス型固体酸化物燃料電池の混
合ガス供給装置において、内部に燃料と空気の混合ガス
を流す第１の流路が形成される円筒状の正極と、この円
筒状の正極の外周部に形成される固体イオン伝導性酸化
物からなる円筒状の電解質と、この円筒状の電解質の外
周部に形成される円筒状の負極と、この円筒状の負極の
表面に前記正極で反応した後の混合ガスを供給する空間
が画定される円筒状のカバーを有する第２の流路とを具
備することを特徴とする。[3] In a mixed gas supply device for a mixed gas type solid oxide fuel cell, a cylindrical positive electrode in which a first flow path for flowing a mixed gas of fuel and air is formed, and this cylindrical positive electrode. A cylindrical electrolyte made of a solid ion conductive oxide formed on the outer periphery of the positive electrode, a cylindrical negative electrode formed on the outer periphery of the cylindrical electrolyte, and the positive electrode on the surface of the cylindrical negative electrode. And a second flow path having a cylindrical cover defining a space for supplying the mixed gas after the reaction.
【００１２】〔４〕混合ガス型固体酸化物燃料電池の混
合ガス供給装置において、外部に円筒状のカバーを有
し、この円筒状のカバーの内部に燃料と空気の混合ガス
を流す第１の流路が形成される円筒状の正極と、この円
筒状の正極の内周部に形成される固体イオン伝導性酸化
物からなる円筒状の電解質と、この円筒状の電解質の内
周部に形成される円筒状の負極と、この円筒状の負極の
表面に前記正極で反応した後の混合ガスを供給する空間
を画定するように形成される第２の流路とを具備するこ
とを特徴とする。[4] A mixed gas supply device for a mixed gas type solid oxide fuel cell, which has a cylindrical cover on the outside, and a mixed gas of fuel and air is flown inside the cylindrical cover. A cylindrical positive electrode in which a flow path is formed, a cylindrical electrolyte made of a solid ion conductive oxide formed on the inner peripheral portion of the cylindrical positive electrode, and formed on the inner peripheral portion of the cylindrical electrolyte. And a second flow path formed so as to define a space for supplying the mixed gas after the reaction in the positive electrode on the surface of the negative electrode. To do.
【００１３】〔５〕上記〔２〕、〔３〕又は〔４〕記載
の混合ガス型固体酸化物燃料電池の混合ガス供給装置に
おいて、前記正極は、希土類元素系複合酸化物電極から
なることを特徴とする。[5] In the mixed gas supply device of the mixed gas type solid oxide fuel cell according to the above [2], [3] or [4], the positive electrode comprises a rare earth element-based composite oxide electrode. Characterize.
【００１４】〔６〕上記〔５〕記載の混合ガス型固体酸
化物燃料電池の混合ガス供給装置において、前記希土類
元素系複合酸化物電極がＳｍＳｒＣｏＯ3 系電極からな
ることを特徴とする。[6] In the mixed gas supply device for a mixed gas type solid oxide fuel cell according to the above [5], the rare earth element-based composite oxide electrode is an SmSrCoO 3 -based electrode.
【００１５】〔７〕上記〔２〕、〔３〕又は〔４〕記載
の混合ガス型固体酸化物燃料電池の混合ガス供給装置に
おいて、前記負極は、サマリウムもしくはガドリニウム
の少なくとも一つを１０モル％〜３０モル％ドープした
セリアを仕込み重量で５重量％〜３０重量％と残部酸化
ニッケルからなる材料を混合調整したサーメット電極で
あることを特徴とする。[7] In the mixed gas supply device for a mixed gas type solid oxide fuel cell according to the above [2], [3] or [4], the negative electrode contains at least one of samarium and gadolinium at 10 mol%. It is a cermet electrode in which 5% to 30% by weight of ceria doped with ˜30 mol% and the balance nickel oxide are mixed and adjusted.
【００１６】[0016]
【発明の実施の形態】以下、本発明の実施の形態につい
て図を参照しながら説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.
【００１７】図１は本発明の第１実施例を示す混合ガス
型固体酸化物燃料電池の混合ガス供給方法を示す模式
図、図２はその混合ガス型固体酸化物燃料電池の構造を
示す構成図であり、図２（ａ）はその外観斜視図、図２
（ｂ）はその図２（ａ）のＡ−Ａ線断面図である。FIG. 1 is a schematic diagram showing a mixed gas supply method of a mixed gas type solid oxide fuel cell showing a first embodiment of the present invention, and FIG. 2 is a constitution showing a structure of the mixed gas type solid oxide fuel cell. 2 (a) is an external perspective view of FIG.
(B) is the AA sectional view taken on the line of FIG. 2 (a).
【００１８】これらの図において、１は燃料と空気の混
合ガス、２はその燃料と空気の混合ガス１が供給される
第１の流路、３はその第１の流路を画定する円筒状の空
気極（正極：アノード）、４はその円筒状の空気極（正
極：アノード）３の外周部に形成される固体イオン伝導
性酸化物からなる円筒状の電解質、５はその円筒状の電
解質４の外周部に形成される円筒状の燃料極（負極：カ
ソード）、６は第２の流路、７はその第２の流路６を画
定する円筒状のカバー、８はその第２の流路６に供給さ
れる、第１の流路２で反応した後の混合ガス、９は燃料
電池の外部回路、１０はその外部回路９に接続される負
荷である。In these figures, 1 is a mixed gas of fuel and air, 2 is a first flow passage to which the mixed gas 1 of fuel and air is supplied, and 3 is a cylindrical shape which defines the first flow passage. Air electrode (positive electrode: anode), 4 is a cylindrical electrolyte made of a solid ion conductive oxide formed on the outer periphery of the cylindrical air electrode (positive electrode: anode) 3, and 5 is the cylindrical electrolyte. A cylindrical fuel electrode (negative electrode: cathode) formed on the outer peripheral portion of 4, a second flow path 6, a cylindrical cover defining the second flow path 6, and a second cover 8 A mixed gas supplied to the flow path 6 after the reaction in the first flow path 2, 9 is an external circuit of the fuel cell, and 10 is a load connected to the external circuit 9.
【００１９】そこで、この実施例では、第１の流路２
に、まず、燃料と空気の混合ガス１が供給されて、円筒
状の空気極３で十分なる反応が行われる。次いで、そこ
で反応した混合ガス８は、円筒状の燃料極５で十分に反
応した後に排出される。Therefore, in this embodiment, the first flow path 2
First, the mixed gas 1 of fuel and air is supplied, and a sufficient reaction is performed in the cylindrical air electrode 3. Then, the mixed gas 8 reacted there is sufficiently reacted at the cylindrical fuel electrode 5 and then discharged.
【００２０】図３は本発明の第２実施例を示す混合ガス
型固体酸化物燃料電池の混合ガス供給方法を示す模式
図、図４はその混合ガス型固体酸化物燃料電池の構造を
示す構成図であり、図４（ａ）はその外観斜視図、図４
（ｂ）はその図４（ａ）のＡ−Ａ線断面図である。FIG. 3 is a schematic diagram showing a mixed gas supply method for a mixed gas type solid oxide fuel cell showing a second embodiment of the present invention, and FIG. 4 is a constitution showing a structure of the mixed gas type solid oxide fuel cell. FIG. 4 (a) is an external perspective view of FIG.
(B) is the AA sectional view taken on the line of FIG. 4 (a).
【００２１】この図において、１１は燃料と空気の混合
ガス、１３は外部に円筒状のカバー１２を有しこの円筒
状のカバー１２の内部に燃料と空気の混合ガス１１を流
す第１の流路、１４はその第１の流路１３の内部に形成
される円筒状の空気極（正極：アノード）、１５はその
円筒状の空気極１４の内周部に形成される固体イオン伝
導性酸化物からなる円筒状の電解質、１６は円筒状の電
解質１５の内周部に形成される円筒状の燃料極（負極：
カソード）、１７はその円筒状の燃料極１６の表面に前
記空気極１４で反応した後の混合ガス１８を供給する空
間を画定するように形成される第２の流路である。In this figure, 11 is a mixed gas of fuel and air, 13 is a cylindrical cover 12 on the outside, and a first flow is made to flow the mixed gas 11 of fuel and air inside the cylindrical cover 12. , 14 is a cylindrical air electrode (positive electrode: anode) formed inside the first flow path 13, and 15 is a solid ion conductive oxidation formed on the inner peripheral part of the cylindrical air electrode 14. And a cylindrical fuel electrode (negative electrode: 16) formed on the inner peripheral portion of the cylindrical electrolyte 15.
Cathodes) and 17 are second flow paths formed on the surface of the cylindrical fuel electrode 16 so as to define a space for supplying the mixed gas 18 after the reaction at the air electrode 14.
【００２２】そこで、この実施例では、第１の流路１３
に、まず、燃料と空気の混合ガス１１が供給されて、円
筒状の空気極１４で十分なる反応が行われる。次いで、
そこで反応した混合ガス１８は、円筒状の燃料極１６で
十分に反応した後に排出される。Therefore, in this embodiment, the first flow path 13
First, a mixed gas 11 of fuel and air is supplied, and a sufficient reaction is performed in the cylindrical air electrode 14. Then
The reacted mixed gas 18 is exhausted after sufficiently reacting at the cylindrical fuel electrode 16.
【００２３】上記した固体酸化物型燃料電池の構成例と
しては、サマリウムもしくはガドリニウムの少なくとも
一つを１０モル％〜３０モル％ドープしたセリア〔Ｓｍ
（Ｇｄ）0.1`0.3 Ｇｅ0.9`0.7 Ｏ1.95`1.85 〕を仕込み
重量で５重量％〜３０重量％と残部酸化ニッケルからな
る材料を混合調整したサーメット電極からなる負極と、
Ｓｍ0.5 Ｓｒ0.5 ＣｏＯ3 電極からなる正極と、セリア
系固体電解質からなり、Ｓｍ0.5 Ｓｒ0.5 ＣｏＯ3 電極
（正極）に燃料と空気よりなる混合ガスを流し、その
後、サーメット電極（負極）に誘導する。As an example of the constitution of the above solid oxide fuel cell, ceria [Sm] doped with 10 mol% to 30 mol% of at least one of samarium and gadolinium is used.
(Gd) and a negative electrode consisting of 0. 1` 0.3 Ge 0. 9` 0.7 O 1.95 `1 .85 ] by weight were charged 5 wt% to 30 wt% and the balance cermet electrode a made of nickel oxide materials are mixed adjustment,
A positive electrode composed of Sm 0.5 Sr 0.5 CoO 3 electrode and a ceria-based solid electrolyte, and a mixed gas composed of fuel and air was passed through the Sm 0.5 Sr 0.5 CoO 3 electrode (positive electrode), and then induced to the cermet electrode (negative electrode) .
【００２４】すなわち、前記空気極（正極）は、Ｓｍ
0.5 Ｓｒ0.5 ＣｏＯ3 電極からなり、前記燃料極（負
極）は、サマリウムもしくはガドリニウムの少なくとも
一つを１０モル％〜３０モル％ドープしたセリアを仕込
み重量で５重量％〜３０重量％と残部酸化ニッケルから
なる材料を混合調整したサーメット電極とする。That is, the air electrode (positive electrode) is Sm
The fuel electrode (negative electrode) comprises 0.5 Sr 0.5 CoO 3 electrode, and the fuel electrode (negative electrode) is charged with ceria doped with at least one of samarium and gadolinium in an amount of 10 mol% to 30 mol%, and 5% to 30% by weight and the balance nickel oxide A cermet electrode prepared by mixing and adjusting the material consisting of
【００２５】なお、セリアとは、ＧｅＯであり、これに
ＳｍもしくはＧｄをドープしたもの（Ｃｅの酸化数は＋
４で、ＳｍもしくはＧｄの酸化数は＋３であることによ
り酸素の数はドープにより変化する）である。Ceria is GeO, which is doped with Sm or Gd (the oxidation number of Ce is +).
4, the oxidation number of Sm or Gd is +3, and thus the number of oxygen changes depending on the doping).
【００２６】ドープしたセリアを仕込み重量で５重量％
〜３０重量％と残部酸化ニッケルからなる材料がサーメ
ットであり、上記セリアを５重量％〜３０重量％＋９５
重量％〜７０重量％ＮｉＯからなる。5 wt% by weight of doped ceria
The material consisting of ˜30 wt% and the balance nickel oxide is cermet, and the above ceria is 5 wt% to 30 wt% +95.
% To 70% by weight NiO.
【００２７】上記混合物を十分混合して、セリア電解質
に塗り付けた後に焼成（約１０５００℃）し、その後、
メタンなどでＮｉＯをＮｉに還元して実際に使用する。The above mixture is thoroughly mixed and applied on the ceria electrolyte, followed by firing (about 10500 ° C.), and thereafter,
Actually used after reducing NiO to Ni with methane or the like.
【００２８】なお、上記した正極の材料としてのＳｍ
0.5 Ｓｒ0.5 ＣｏＯ3 は、Ｓｍのドープ量にはある程度
幅（Ｓｍ0.7 Ｓｒ0.3 ＣｏＯ3 〜Ｓｍ0.5 〜Ｓｍ0.7 Ｓ
ｒ0.7ＣｏＯ3 ）がある。さらに、Ｓｍでなくとも希土
類元素であればそれなりに性能がでる。さらに、ペロブ
スカイト系の複合酸化物（例えば、ＬａＭｎＯ3 ）でも
出力は落ちるがそれなりに機能する。It should be noted that Sm as a material for the above-mentioned positive electrode
0.5 Sr 0.5 CoO 3 has a certain width (Sm 0.7 Sr 0.3 CoO 3 to Sm 0.5 to Sm 0.7 S) in the Sm doping amount.
r 0.7 CoO 3 ). Furthermore, if it is a rare earth element other than Sm, the performance can be obtained as such. Further, a perovskite-based complex oxide (for example, LaMnO 3 ) also functions, although the output drops.
【００２９】従来の場合は、燃料電池を７００℃に設定
して、混合ガス（メタンと空気中の酸素の混合比＝２：
１）を流した場合、ガス流速を遅くすると出力の低下が
見られ、空気極の劣化が観察された。In the conventional case, the fuel cell was set at 700 ° C. and the mixed gas (mixing ratio of methane and oxygen in air = 2:
When 1) was passed, a decrease in output was observed when the gas flow velocity was slowed, and deterioration of the air electrode was observed.
【００３０】これを詳細に検討した結果、混合ガスが燃
料極と反応し、その反応生成物が空気極を劣化させてい
ることが明らかになった。As a result of detailed examination, it became clear that the mixed gas reacted with the fuel electrode and the reaction product deteriorated the air electrode.
【００３１】一方、本発明の燃料電池への混合ガスの供
給方法によれば、空気極に混合ガスを導入した後に、燃
料極に流すことにより、所定の出力が安定して得られる
ようになった。On the other hand, according to the method for supplying the mixed gas to the fuel cell of the present invention, a predetermined output can be stably obtained by introducing the mixed gas into the air electrode and then flowing it into the fuel electrode. It was
【００３２】本発明によれば、このように構成したの
で、正極と負極の両極に同一混合ガスを流して、起電・
発電した場合に生じる正極の著しい損傷を回避すること
ができるとともに、燃料の利用効率の大幅な向上を図る
ことができる。According to the present invention, since it is configured in this way, the same mixed gas is flowed to both the positive electrode and the negative electrode to generate electromotive force.
It is possible to avoid significant damage to the positive electrode that occurs when power is generated, and it is possible to significantly improve fuel utilization efficiency.
【００３３】なお、本発明は上記実施例に限定されるも
のではなく、本発明の趣旨に基づいて種々の変形が可能
であり、これらを本発明の範囲から排除するものではな
い。The present invention is not limited to the above embodiments, and various modifications can be made based on the spirit of the present invention, and these modifications are not excluded from the scope of the present invention.
【００３４】[0034]
【発明の効果】以上、詳細に説明したように、本発明に
よれば、正極と負極の両極に同一混合ガスを流すことに
より、起電・発電した場合に生じる正極の著しい損傷が
回避されるとともに、燃料の利用効率を向上させること
ができる。As described above in detail, according to the present invention, by causing the same mixed gas to flow through both the positive electrode and the negative electrode, it is possible to avoid significant damage to the positive electrode caused by electromotive force and power generation. At the same time, the fuel utilization efficiency can be improved.
【図１】本発明の第１実施例を示す混合ガス型固体酸化
物燃料電池の混合ガス供給方法を示す模式図である。FIG. 1 is a schematic diagram showing a mixed gas supply method for a mixed gas type solid oxide fuel cell according to a first embodiment of the present invention.
【図２】本発明の第１実施例を示す混合ガス型固体酸化
物燃料電池の構造を示す構成図である。FIG. 2 is a configuration diagram showing a structure of a mixed gas type solid oxide fuel cell showing a first embodiment of the present invention.
【図３】本発明の第２実施例を示す混合ガス型固体酸化
物燃料電池の混合ガス供給方法を示す模式図である。FIG. 3 is a schematic diagram showing a mixed gas supply method for a mixed gas type solid oxide fuel cell according to a second embodiment of the present invention.
【図４】本発明の第２実施例を示す混合ガス型固体酸化
物燃料電池の構造を示す構成図である。FIG. 4 is a configuration diagram showing a structure of a mixed gas type solid oxide fuel cell showing a second embodiment of the present invention.
【図５】混合ガス型の固体酸化物型燃料電池の機能を示
す模式図である。FIG. 5 is a schematic view showing the function of a mixed gas type solid oxide fuel cell.
１，１１ 燃料と空気の混合ガス
２，１３ 第１の流路
３，１４ 円筒状の空気極（正極：アノード）
４，１５ 固体イオン伝導性酸化物からなる円筒状の
電解質
５，１６ 円筒状の燃料極（負極：カソード）
６，１７ 第２の流路
７，１２ 円筒状のカバー
８，１８ 第１の流路で反応した後の混合ガス
９ 燃料電池の外部回路
１０ 負荷1,11 Mixed gas of fuel and air 2,13 First flow path 3,14 Cylindrical air electrode (positive electrode: anode) 4,15 Cylindrical electrolyte made of solid ion conductive oxide 5,16 Cylindrical Fuel electrode (negative electrode: cathode) 6,17 Second flow path 7,12 Cylindrical cover 8,18 Mixed gas 9 after reacting in the first flow path 9 External circuit 10 of fuel cell Load
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０１Ｍ 8/12 Ｈ０１Ｍ 8/12 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) H01M 8/12 H01M 8/12
Claims (7)
の後、該正極で反応した混合ガスを負極に流すことを特
徴とする混合ガス型固体酸化物燃料電池の混合ガス供給
方法。1. A mixed gas supply method for a mixed gas type solid oxide fuel cell, comprising: flowing a mixed gas of fuel and air to a positive electrode, and then flowing a mixed gas reacted at the positive electrode to a negative electrode.
する第１のガス供給手段と、（ｂ）該第１のガス供給手
段で反応した混合ガスを負極に供給する第２のガス供給
手段とを具備することを特徴とする混合ガス型固体酸化
物燃料電池の混合ガス供給装置。2. A first gas supply means for supplying a mixed gas of fuel and air to a positive electrode, and a second gas supply means for supplying a mixed gas reacted by the first gas supply means to a negative electrode. A mixed gas supply device for a mixed gas type solid oxide fuel cell, comprising: a gas supply means.
第１の流路が形成される円筒状の正極と、（ｂ）該円筒
状の正極の外周部に形成される固体イオン伝導性酸化物
からなる円筒状の電解質と、（ｃ）該円筒状の電解質の
外周部に形成される円筒状の負極と、（ｄ）該円筒状の
負極の表面に前記正極で反応した後の混合ガスを供給す
る空間が画定される円筒状のカバーを有する第２の流路
とを具備することを特徴とする混合ガス型固体酸化物燃
料電池の混合ガス供給装置。3. A cylindrical positive electrode in which (a) a first flow path for flowing a mixed gas of fuel and air is formed, and (b) solid ions formed on the outer peripheral portion of the cylindrical positive electrode. After reacting a cylindrical electrolyte made of a conductive oxide, (c) a cylindrical negative electrode formed on the outer peripheral portion of the cylindrical electrolyte, and (d) reacting the surface of the cylindrical negative electrode with the positive electrode. And a second flow path having a cylindrical cover in which a space for supplying the mixed gas is defined, and a mixed gas supply device for a mixed gas type solid oxide fuel cell.
筒状のカバーの内部に燃料と空気の混合ガスを流す第１
の流路が形成される円筒状の正極と、（ｂ）該円筒状の
正極の内周部に形成される固体イオン伝導性酸化物から
なる円筒状の電解質と、（ｃ）該円筒状の電解質の内周
部に形成される円筒状の負極と、（ｄ）該円筒状の負極
の表面に前記正極で反応した後の混合ガスを供給する空
間を画定するように形成される第２の流路とを具備する
ことを特徴とする混合ガス型固体酸化物燃料電池の混合
ガス供給装置。4. (a) A first cover having a cylindrical cover on the outside, and flowing a mixed gas of fuel and air inside the cylindrical cover.
A cylindrical positive electrode in which the flow path of the cylindrical positive electrode is formed, (b) a cylindrical electrolyte made of a solid ion conductive oxide formed on the inner peripheral portion of the cylindrical positive electrode, and (c) the cylindrical positive electrode. A cylindrical negative electrode formed on the inner periphery of the electrolyte, and (d) a second negative electrode formed on the surface of the cylindrical negative electrode so as to define a space for supplying the mixed gas after the reaction with the positive electrode. A mixed gas supply device for a mixed gas type solid oxide fuel cell, comprising: a flow path.
体酸化物燃料電池の混合ガス供給装置において、前記正
極は、希土類元素系複合酸化物電極からなることを特徴
とする混合ガス型固体酸化物燃料電池の混合ガス供給装
置。5. The mixed gas supply device for a mixed gas type solid oxide fuel cell according to claim 2, 3 or 4, wherein the positive electrode comprises a rare earth element-based composite oxide electrode. A mixed gas supply device for a solid oxide fuel cell.
料電池の混合ガス供給装置において、前記希土類元素系
複合酸化物電極がＳｍＳｒＣｏＯ3 系電極からなること
を特徴とする混合ガス型固体酸化物燃料電池の混合ガス
供給装置。6. The mixed gas type solid oxide fuel cell according to claim 5, wherein the rare earth element-based composite oxide electrode is an SmSrCoO 3 based electrode. Gas supply device for fuel cell.
体酸化物燃料電池の混合ガス供給装置において、前記負
極は、サマリウムもしくはガドリニウムの少なくとも一
つを１０モル％〜３０モル％ドープしたセリアを仕込み
重量で５重量％〜３０重量％と残部酸化ニッケルからな
る材料を混合調整したサーメット電極であることを特徴
とする混合ガス型固体酸化物燃料電池の混合ガス供給装
置。7. The mixed gas supply device for a mixed gas type solid oxide fuel cell according to claim 2, 3 or 4, wherein the negative electrode is doped with at least one of samarium and gadolinium in an amount of 10 mol% to 30 mol%. A mixed gas supply device for a mixed gas type solid oxide fuel cell, which is a cermet electrode in which 5% by weight to 30% by weight of ceria is charged and the balance is made of a material composed of nickel oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002085541A JP3961321B2 (en) | 2002-03-26 | 2002-03-26 | Method and apparatus for supplying mixed gas of mixed gas type solid oxide fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002085541A JP3961321B2 (en) | 2002-03-26 | 2002-03-26 | Method and apparatus for supplying mixed gas of mixed gas type solid oxide fuel cell |
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| Publication Number | Publication Date |
|---|---|
| JP2003282091A true JP2003282091A (en) | 2003-10-03 |
| JP3961321B2 JP3961321B2 (en) | 2007-08-22 |
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|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004066424A3 (en) * | 2003-01-23 | 2005-05-26 | Hewlett Packard Development Co | Fuel cell |
| JP2008226557A (en) * | 2007-03-09 | 2008-09-25 | Dainippon Printing Co Ltd | Interconnector and stack structure of single-chamber solid oxide fuel cell using the same |
| CN103715446A (en) * | 2013-12-31 | 2014-04-09 | 重庆大学 | Wastewater degrading power generation device and method integrated with sewer U-shaped pipe |
-
2002
- 2002-03-26 JP JP2002085541A patent/JP3961321B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004066424A3 (en) * | 2003-01-23 | 2005-05-26 | Hewlett Packard Development Co | Fuel cell |
| US7014929B2 (en) | 2003-01-23 | 2006-03-21 | Hewlett-Packard Development Company, L.P. | Fuel cell |
| JP2008226557A (en) * | 2007-03-09 | 2008-09-25 | Dainippon Printing Co Ltd | Interconnector and stack structure of single-chamber solid oxide fuel cell using the same |
| CN103715446A (en) * | 2013-12-31 | 2014-04-09 | 重庆大学 | Wastewater degrading power generation device and method integrated with sewer U-shaped pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3961321B2 (en) | 2007-08-22 |
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