JPH0967672A - Ferritic stainless steel, solid electrolytic fuel cell and production of the same ferritic stainless steel - Google Patents
Ferritic stainless steel, solid electrolytic fuel cell and production of the same ferritic stainless steelInfo
- Publication number
- JPH0967672A JPH0967672A JP7220345A JP22034595A JPH0967672A JP H0967672 A JPH0967672 A JP H0967672A JP 7220345 A JP7220345 A JP 7220345A JP 22034595 A JP22034595 A JP 22034595A JP H0967672 A JPH0967672 A JP H0967672A
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- ferritic stainless
- fuel cell
- solid electrolytic
- zro
- 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- Withdrawn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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Vapour Deposition (AREA)
- Fuel Cell (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はフェライト系ステン
レス鋼、これを使用した固体電解質燃料電池およびこの
フェライト系ステンレス鋼の製造方法に関する。TECHNICAL FIELD The present invention relates to a ferritic stainless steel, a solid electrolyte fuel cell using the same, and a method for producing the ferritic stainless steel.
【０００２】[0002]
【従来の技術】最近、例えば空気と水素をそれぞれ、酸
化剤および燃料として、燃料が本来持っている化学エネ
ルギーを直接電気エネルギーに変換する燃料電池が、省
資源、環境保護の観点から注目されている。2. Description of the Related Art Recently, for example, fuel cells which directly convert chemical energy originally possessed by fuels into electric energy by using air and hydrogen respectively as an oxidant and a fuel have attracted attention from the viewpoint of resource saving and environmental protection. There is.
【０００３】燃料電池の中で固体電解質燃料電池は、固
体電解質の両面にそれぞれ空気極、燃料極を配置してな
る平板状単電池と、隣接する単電池同士を電気的に直列
に接続し、かつ各単電池に燃料と酸化剤ガスとを分配す
るセパレータとを交互に積層し、燃料極とセパレータの
燃料ガス流通路側との間に金属メッシュを介在し、単電
池の固体電解質とセパレータの間にそれぞれシール剤ま
たはガスケットを介在してスタックに積層したものであ
る。Among the fuel cells, a solid electrolyte fuel cell is a flat-type cell in which an air electrode and a fuel electrode are arranged on both sides of a solid electrolyte, and adjacent cells are electrically connected in series. And the separators that distribute the fuel and the oxidant gas to each unit cell are alternately laminated, a metal mesh is interposed between the fuel electrode and the fuel gas flow passage side of the separator, and between the solid electrolyte of the unit cell and the separator. Are laminated in a stack with a sealant or gasket interposed therebetween.
【０００４】固体電解質燃料電池の構成材料は次のよう
である。The constituent materials of the solid electrolyte fuel cell are as follows.
【０００５】単電池はイットリアなどをドープしたジル
コニア焼結体（ＹＳＺ）からなる固体電解質をＮｉ／Ｙ
ＳＺサーメットの燃料極と（Ｌａ、Ｓｒ）ＭｎＯの空気
極が両側から挟んでいる。セパレータはストロンチウ
ム、カルシウム、マグネシウム等をドープしたランタン
クロマイト酸化物ＬａＣｒＯ3 、または耐熱性合金で造
られる。ガスケットは部分安定化ジルコニアまたは耐熱
性金属で造られている。A unit cell is a Ni / Y solid electrolyte composed of a zirconia sintered body (YSZ) doped with yttria or the like.
The fuel electrode of SZ cermet and the air electrode of (La, Sr) MnO are sandwiched from both sides. The separator is made of lanthanum chromite oxide LaCrO 3 doped with strontium, calcium, magnesium or the like, or a heat resistant alloy. The gasket is made of partially stabilized zirconia or refractory metal.
【０００６】固体電解質燃料電池の作動温度は１０００
℃と高く、そのため構成材料が金属の場合、酸素が侵入
して厚みや重量を増加し、最終的に異常酸化を起こす。
そこで、構成材料に金属を用いる場合表面の改質が必要
となる。The operating temperature of a solid oxide fuel cell is 1000
As high as ℃, when the constituent material is metal, oxygen invades to increase the thickness and weight, and finally causes abnormal oxidation.
Therefore, when a metal is used as a constituent material, surface modification is required.
【０００７】フェライト系ステンレス鋼は、耐酸化性に
優れ、金属の中では熱膨張率も小さいため、固体電解質
燃料電池の構成材料として期待されている。Ferrite stainless steel is excellent in oxidation resistance and has a small coefficient of thermal expansion among metals, so that it is expected as a constituent material of a solid electrolyte fuel cell.
【０００８】[0008]
【発明が解決しようとする課題】しかるに、フェライト
系ステンレス鋼は表面処理を施していない場合、表面に
酸化クロムの層が現れ、固体電解質燃料電池の電極、特
に空気極に悪影響して劣化させる欠点と、高温度での酸
化速度を大きくする欠点がある。However, when the ferritic stainless steel is not surface-treated, a layer of chromium oxide appears on the surface, which adversely deteriorates the electrode of the solid electrolyte fuel cell, particularly the air electrode. And, there is a drawback that the oxidation rate at high temperature is increased.
【０００９】例えば特開平６−１４６００６に開示され
ているように、フェライト系ステンレス鋼の表面に導電
酸化物を低温プラズマやスパッタリングにより被覆する
ことにより酸化速度すなわち単位時間あたりの酸化増量
変化（単位：ｍｇ／ｃｍ2 ）を減少させるよう試みてい
るが、従来例ではこれを充分に減少できたとはいい難
い。For example, as disclosed in JP-A-6-146006, the surface of ferritic stainless steel is coated with a conductive oxide by low-temperature plasma or sputtering to change the oxidation rate, that is, the increase in oxidation amount per unit time (unit: Attempts have been made to reduce the amount (mg / cm 2 ), but it is hard to say that this can be sufficiently reduced in the conventional example.
【００１０】本発明は上述の点にかんがみてなされたも
ので、フェライト系ステンレス鋼の酸化速度を充分に減
少させて耐熱性を向上させることができるフェライト系
ステンレス鋼の表面改質法と、この方法により改質され
たフェライト系ステンレス鋼およびこの材料をガスケッ
トとして用いた固体電解質燃料電池を提供することを目
的とする。The present invention has been made in view of the above points, and a surface modification method for a ferritic stainless steel capable of sufficiently reducing the oxidation rate of the ferritic stainless steel to improve the heat resistance, and An object of the present invention is to provide a ferritic stainless steel modified by the method and a solid electrolyte fuel cell using this material as a gasket.
【００１１】[0011]
【課題を解決するための手段】上記目的を達成するた
め、本発明は表面にＺｒＯ2 を被覆したフェライト系ス
テンレス鋼を特徴とする。To achieve the above object, the present invention features a ferritic stainless steel having a surface coated with ZrO 2 .
【００１２】また、重量％でＣｒ：１５％以上、Ａｌ：
３％以上を含有し、表面にＺｒＯ2を被覆したフェライ
ト系ステンレス鋼を特徴とする。In addition, Cr: 15% or more by weight%, Al:
It is characterized by ferritic stainless steel containing 3% or more and having ZrO 2 coated on the surface.
【００１３】また、上記フェライト系ステンレス鋼をガ
スケットの材料として用いた固体電解質燃料電池を特徴
とする。A solid electrolyte fuel cell using the above ferritic stainless steel as a gasket material is also featured.
【００１４】また、フェライト系ステンレス鋼の表面に
ＣＶＤ（Chemical Vapor Deposition ）法によりＺｒ
Ｏ2 を被覆することを特徴とする。Zr is formed on the surface of ferritic stainless steel by the CVD (Chemical Vapor Deposition) method.
It is characterized by coating with O 2 .
【００１５】また、重量％でＣｒ：１５％以上、Ａｌ：
３％以上を含有するフェライト系ステンレス鋼の表面に
ＣＶＤ法によりＺｒＯ2 を被覆することを特徴とする。In addition, Cr: 15% or more by weight%, Al:
The surface of ferritic stainless steel containing 3% or more is coated with ZrO 2 by the CVD method.
【００１６】[0016]
【発明の実施の形態】以下に本発明を図面に基づいて説
明する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the drawings.
【００１７】本発明の方法に使用されるフェライト系ス
テンレス鋼は通常の成分を有するものであるが、重量％
でＣｒ：１５％以上、Ａｌ：３％以上を含有するものが
好まれる。The ferritic stainless steel used in the method of the present invention has the usual constituents, but is in weight percent.
Therefore, those containing Cr: 15% or more and Al: 3% or more are preferred.
【００１８】表面被覆材料としてＺｒＯ2 を用いるが、
ＣｅＯ2 やＡｌ2 Ｏ3 を使用することもできる。ZrO 2 is used as the surface coating material,
CeO 2 or Al 2 O 3 can also be used.
【００１９】表面被覆はＣＶＤ法により実施する。The surface coating is carried out by the CVD method.
【００２０】ＣＶＤ法とは原料を気体の状態で供給し、
化学反応により膜を析出させる方法である。原料として
特に金属有機化合物を用いた場合ＭＯＣＶＤ法と呼ばれ
る。The CVD method is to supply raw materials in a gaseous state,
It is a method of depositing a film by a chemical reaction. When a metal organic compound is used as a raw material, it is called a MOCVD method.
【００２１】[0021]
【実施例】ＭＯＣＶＤ法あるいは光ＣＶＤ法でＺｒＯ2
薄膜を合成し、耐酸化コーティングへの応用を試みた。[Example] ZrO 2 by MOCVD method or photo CVD method
We synthesized a thin film and tried to apply it to oxidation resistant coating.
【００２２】実験方法は次のようである。The experimental method is as follows.
【００２３】図１は実験に使用したＣＶＤ反応装置の概
略構成を説明する図である。FIG. 1 is a diagram for explaining the schematic structure of the CVD reactor used in the experiment.
【００２４】図の装置において、ガラスチャンバー２の
天井板に重水素ランプ１が取付けられている。ガラスチ
ャンバー２の底板上のサセプター４に２ｃｍ角の透明石
英あるいは合金の基板３が載せられている。ガラスチャ
ンバー２の底板に設けた石英窓７の下に赤外ランプ８が
配置されている。ガラスチャンバー２には真空計５と圧
力コントローラ６が取付けられている。圧力コントロー
ラ６を通じて排気される。ヒータ１１の中に収容された
気化器９に原料１０が入れられている。キャリアガスは
流量コントローラ１２を通じて気化器９に流入し、さら
にガラスチャンバー２の中に流入する。また、反応ガス
は流量コントローラ１３を通じてガラスチャンバー２の
中に流入する。In the illustrated apparatus, the deuterium lamp 1 is attached to the ceiling plate of the glass chamber 2. A 2 cm square transparent quartz or alloy substrate 3 is placed on a susceptor 4 on the bottom plate of the glass chamber 2. An infrared lamp 8 is arranged below a quartz window 7 provided on the bottom plate of the glass chamber 2. A vacuum gauge 5 and a pressure controller 6 are attached to the glass chamber 2. The gas is exhausted through the pressure controller 6. A raw material 10 is put in a vaporizer 9 housed in a heater 11. The carrier gas flows into the vaporizer 9 through the flow rate controller 12 and further into the glass chamber 2. Further, the reaction gas flows into the glass chamber 2 through the flow rate controller 13.
【００２５】使用されたフェライト系ステンレス鋼は、
重量％で、Ｃｒ：１７．９％、Ｔｉ：０．３５％、Ｍ
ｎ：０．３３％、Ｓｉ：０．３％、Ａｌ：３．６％、Ｆ
ｅ：７７．５２％の成分を有する。The ferritic stainless steel used is
% By weight, Cr: 17.9%, Ti: 0.35%, M
n: 0.33%, Si: 0.3%, Al: 3.6%, F
e: It has a component of 77.52%.
【００２６】被覆原料１０には約０．２ｇのジルコニウ
ムのアセチルアセトネートを用い、真空紫外光の光源に
は、重水素ランプ１を用いた。窓材はＭｇＦ2 である。
重水素ランプ１は１１５ｎｍから４００ｎｍまでの幅広
い波長分布と、低波長の高い光子エネルギーを有してい
る。ランプ１の出力は１５０Ｗである。About 0.2 g of zirconium acetylacetonate was used as the coating raw material 10, and the deuterium lamp 1 was used as the light source of vacuum ultraviolet light. The window material is MgF 2 .
The deuterium lamp 1 has a wide wavelength distribution from 115 nm to 400 nm and high photon energy of low wavelength. The output of the lamp 1 is 150W.
【００２７】キャリアガスには５００ｓｃｃｍＮ2 を用
い、反応ガスには２００ｓｃｃｍのＯ2 を用いた。基板
３の温度は７４０Ｋから８００Ｋまで２０Ｋごとに変化
させ、それぞれ３０分成膜した。反応圧力は２０Ｔｏｒ
ｒ一定で行った。原料１０は油浴により１５０℃一定に
保持した。500 sccm N 2 was used as the carrier gas, and 200 sccm O 2 was used as the reaction gas. The temperature of the substrate 3 was changed from 740 K to 800 K in steps of 20 K, and films were formed for 30 minutes each. Reaction pressure is 20 Tor
It was carried out at a constant r. The raw material 10 was kept constant at 150 ° C. by an oil bath.
【００２８】上記実験の結果を図２、３に示す。The results of the above experiment are shown in FIGS.
【００２９】図２は透明石英基板上に光ＣＶＤ法で成膜
したＺｒＯ2 薄膜の結晶構造断面の電子顕微鏡写真であ
る。FIG. 2 is an electron micrograph of a crystal structure cross section of a ZrO 2 thin film formed by a photo CVD method on a transparent quartz substrate.
【００３０】ＺｒＯ2 薄膜の厚さは約０．５μｍで、そ
の構造は柱状構造であった。ＸＲＤ分析によると結晶構
造は単斜晶で、結晶配向はランダムであった。また、光
励起を用いない同一条件のＭＯＣＶＤ法と比較すると、
微細構造、結晶構造には変化がなかったが、薄膜の成長
速度は、光励起によって減少する傾向にあった。これは
成長表面での活性種の再離脱が加速されたためだと考え
られる。膜の屈折率は光照射によって増加した。The ZrO 2 thin film had a thickness of about 0.5 μm and had a columnar structure. According to XRD analysis, the crystal structure was monoclinic and the crystal orientation was random. Further, when compared with the MOCVD method under the same conditions that does not use photoexcitation,
There was no change in the fine structure and the crystal structure, but the growth rate of the thin film tended to decrease by photoexcitation. It is considered that this is because the re-dissociation of active species on the growth surface was accelerated. The refractive index of the film was increased by light irradiation.
【００３１】図３はＺｒＯ2 被膜がＦｅ−１８Ｃｒ基合
金の１０００℃での酸化に及ぼす影響を示すグラフであ
る。FIG. 3 is a graph showing the effect of the ZrO 2 coating on the oxidation of the Fe-18Cr based alloy at 1000 ° C.
【００３２】図３において、Ｆｅ−１８Ｃｒ基合金につ
いて、１０００℃での酸化に及ぼす影響が、被膜のない
場合（Ａ曲線）、光励起を用いたＰｈｏｔｏ−ＭＯＣＶ
Ｄ（Metal Organic Chemical Vapor Deposition ）
法により被膜した場合（Ｂ曲線）および光励起を用いな
いＭＯＣＶＤ法により被膜した場合（Ｃ曲線）について
の結果が示されている。このグラフの縦軸に酸化増量変
化（単位：ｍｇ／ｃｍ2 ）を示し、横軸に酸化時間を示
す。このグラフによると真空紫外光照射による光励起の
効果は明らかでないが、ＺｒＯ2 被膜による酸化速度の
減少が明瞭に見られた。In FIG. 3, for the Fe-18Cr-based alloy, the effect on the oxidation at 1000 ° C. when there was no coating (A curve), Photo-MOCV using photoexcitation.
D (Metal Organic Chemical Vapor Deposition)
The results are shown for the case of coating by the method (B curve) and the case of coating by the MOCVD method without photoexcitation (C curve). The vertical axis of this graph shows the increase in oxidation amount (unit: mg / cm 2 ) and the horizontal axis shows the oxidation time. According to this graph, the effect of photoexcitation by vacuum ultraviolet light irradiation is not clear, but a decrease in the oxidation rate due to the ZrO 2 coating was clearly seen.
【００３３】[0033]
【発明の効果】フェライト系ステンレス鋼がＡｌを含ん
でいることにより、酸化アルミの保護層が形成され、耐
熱性が向上する。As the ferritic stainless steel contains Al, a protective layer of aluminum oxide is formed and heat resistance is improved.
【００３４】ＺｒＯ2 の被膜をＣＶＤ法で行うことで緻
密な膜を生成し、高温での酸化速度が減少した。By applying the ZrO 2 film by the CVD method, a dense film was formed and the oxidation rate at high temperature was reduced.
【図１】実験に使用したＣＶＤ反応装置の概略構成を説
明する図である。FIG. 1 is a diagram illustrating a schematic configuration of a CVD reactor used in an experiment.
【図２】透明石英基板上に光ＣＶＤ法で成膜したＺｒＯ
2 薄膜の結晶構造断面の電子顕微鏡写真である。FIG. 2 ZrO film formed on a transparent quartz substrate by a photo CVD method.
2 is an electron micrograph of a crystal structure cross section of two thin films.
【図３】ＺｒＯ2 被膜がＦｅ−１８Ｃｒ基合金の１００
０℃での酸化に及ぼす影響を示すグラフである。FIG. 3: ZrO 2 coating of Fe-18Cr-based alloy 100
It is a graph which shows the influence which it has on oxidation at 0 degreeC.
１ 重水素ランプ ２ ガラスチャンバー ３ 基板 ４ サセプター ５ 真空計 ６ 圧力コントローラ ７ 石英窓 ８ 赤外ランプ ９ 気化器 １０ 原料 １１ ヒータ １２ 流量コントローラ １３ 流量コントローラ 1 Deuterium Lamp 2 Glass Chamber 3 Substrate 4 Susceptor 5 Vacuum Meter 6 Pressure Controller 7 Quartz Window 8 Infrared Lamp 9 Vaporizer 10 Raw Material 11 Heater 12 Flow Controller 13 Flow Controller
Claims (6)
するフェライト系ステンレス鋼。1. A ferritic stainless steel whose surface is coated with ZrO 2 .
以上を含有することを特徴とする請求項１に記載のフェ
ライト系ステンレス鋼。2. Cr: 15% or more by weight%, Al: 3%
The ferritic stainless steel according to claim 1, containing the above.
ステンレス鋼をガスケットの材料として用いたことを特
徴とする固体電解質燃料電池。3. A solid electrolyte fuel cell comprising the ferritic stainless steel according to claim 1 or 2 as a gasket material.
Ｏ2 を被覆することを特徴とするフェライト系ステンレ
ス鋼の製造方法。4. Zr on the surface of ferritic stainless steel
A method for producing a ferritic stainless steel, which comprises coating with O 2 .
でＣｒ：１５％以上、Ａｌ：３％以上を含有することを
特徴とする請求項４に記載のフェライト系ステンレス鋼
の製造方法。5. The ferritic stainless steel is wt%
5. The method for producing a ferritic stainless steel according to claim 4, wherein Cr: 15% or more and Al: 3% or more are contained.
を特徴とする請求項４に記載のフェライト系ステンレス
鋼の製造方法。6. The method for producing a ferritic stainless steel according to claim 4, wherein ZrO 2 is coated by the CVD method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7220345A JPH0967672A (en) | 1995-08-29 | 1995-08-29 | Ferritic stainless steel, solid electrolytic fuel cell and production of the same ferritic stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7220345A JPH0967672A (en) | 1995-08-29 | 1995-08-29 | Ferritic stainless steel, solid electrolytic fuel cell and production of the same ferritic stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0967672A true JPH0967672A (en) | 1997-03-11 |
Family
ID=16749694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7220345A Withdrawn JPH0967672A (en) | 1995-08-29 | 1995-08-29 | Ferritic stainless steel, solid electrolytic fuel cell and production of the same ferritic stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0967672A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005106999A1 (en) * | 2004-04-27 | 2005-11-10 | Battelle Memorial Institute | Improved joint with application in electrochemical devices |
| DE10132841B4 (en) * | 2000-07-07 | 2007-08-23 | Nippon Steel Corp. | Separation plate for solid polymer fuel cells and process for their preparation and use of the separation plate in solid polymer fuel cells |
| JP2007523997A (en) * | 2003-12-05 | 2007-08-23 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | New metal strip material |
| JP2010003689A (en) * | 2008-06-20 | 2010-01-07 | General Electric Co <Ge> | Fuel cell interconnecting structure and related method as well as data |
| US7794170B2 (en) | 2005-04-22 | 2010-09-14 | Battelle Memorial Institute | Joint with application in electrochemical devices |
| WO2024004361A1 (en) * | 2022-06-30 | 2024-01-04 | 京セラ株式会社 | Electroconductive member, electrochemical cell, electrochemical cell device, module, and module storage device |
-
1995
- 1995-08-29 JP JP7220345A patent/JPH0967672A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10132841B4 (en) * | 2000-07-07 | 2007-08-23 | Nippon Steel Corp. | Separation plate for solid polymer fuel cells and process for their preparation and use of the separation plate in solid polymer fuel cells |
| JP2007523997A (en) * | 2003-12-05 | 2007-08-23 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | New metal strip material |
| WO2005106999A1 (en) * | 2004-04-27 | 2005-11-10 | Battelle Memorial Institute | Improved joint with application in electrochemical devices |
| US7794170B2 (en) | 2005-04-22 | 2010-09-14 | Battelle Memorial Institute | Joint with application in electrochemical devices |
| JP2010003689A (en) * | 2008-06-20 | 2010-01-07 | General Electric Co <Ge> | Fuel cell interconnecting structure and related method as well as data |
| WO2024004361A1 (en) * | 2022-06-30 | 2024-01-04 | 京セラ株式会社 | Electroconductive member, electrochemical cell, electrochemical cell device, module, and module storage device |
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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: 20021105 |