JP3442408B2 - Method for producing electrode-electrolyte assembly and fuel cell using the same - Google Patents
Method for producing electrode-electrolyte assembly and fuel cell using the sameInfo
- Publication number
- JP3442408B2 JP3442408B2 JP20736191A JP20736191A JP3442408B2 JP 3442408 B2 JP3442408 B2 JP 3442408B2 JP 20736191 A JP20736191 A JP 20736191A JP 20736191 A JP20736191 A JP 20736191A JP 3442408 B2 JP3442408 B2 JP 3442408B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- electrolyte
- electrolyte assembly
- producing
- fuel cell
- 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.)
- Expired - Fee Related
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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
-
- 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
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電極−電解質接合体の
製造方法及びそれを用いた燃料電池に関し、特に電解質
板上に均一な電極触媒層を効率的に形成でき、かつその
膜厚を容易に調整しうる電極−電解質接合体の製造方
法、及びそれを用いた燃料電池に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an electrode-electrolyte assembly and a fuel cell using the same, and more particularly to a uniform electrode catalyst layer which can be efficiently formed on an electrolyte plate and whose thickness is The present invention relates to a method of manufacturing an electrode-electrolyte assembly that can be easily adjusted, and a fuel cell using the same.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】燃料電
池は、一般に電解質板とその両側に設けられたアノード
及びカソードからなる単位電池を、セパレータを介して
積層してなるものである。各電解質板上で燃料ガスと酸
化剤ガスとの酸化還元反応が起こるようにするために、
各セパレータには燃料ガス及び酸化剤ガスの流路用溝が
形成されている。2. Description of the Related Art A fuel cell generally comprises a unit cell composed of an electrolyte plate and anodes and cathodes provided on both sides of the electrolyte plate, which are laminated via a separator. In order to cause the redox reaction between the fuel gas and the oxidant gas on each electrolyte plate,
Grooves for fuel gas and oxidant gas channels are formed in each separator.
【０００３】セパレータのアノード側流路溝には燃料ガ
スが供給され、一方カソード側のセパレータの流路溝に
は酸化剤ガスが供給される。このような反応ガスの供給
の結果、電気化学的反応の進行に伴い電子が発生し、こ
の電子を外部回路に取り出すことにより、電気エネルギ
ーを発生する。Fuel gas is supplied to the anode side flow channel of the separator, while oxidant gas is supplied to the cathode side flow channel of the separator. As a result of such supply of the reaction gas, electrons are generated as the electrochemical reaction progresses, and the electrons are taken out to an external circuit to generate electric energy.
【０００４】このような燃料電池として、電解質板をイ
オン交換膜用のイオン導電性ポリマーにより形成し、そ
の上に電極触媒層を形成してなるものが考えられる。こ
の場合、電極触媒層は、スプレー法、塗布法等により形
成するのが普通である。なおプラズマ溶射法や、ＣＶＤ
法もあるが、これらの方法では処理温度が高すぎるため
にイオン導電性ポリマーの場合には適さない。As such a fuel cell, it is conceivable that an electrolyte plate is formed of an ion conductive polymer for an ion exchange membrane, and an electrode catalyst layer is formed thereon. In this case, the electrode catalyst layer is usually formed by a spray method, a coating method or the like. In addition, plasma spraying method and CVD
Although there are methods, these methods are not suitable for ion-conductive polymers because the treatment temperature is too high.
【０００５】このような燃料電池の電極として、特開昭
５７−１６８４７３号は、カーボンペーパー又はカーボ
ン織布等の導電性基材上に、触媒を担持した導電性超微
粒子と、前記超微粒子中の最大粒子の体積の１０３倍以
上の体積を有する導電性物質とを含む混合物層を電極触
媒層として形成したものを開示している。As an electrode for such a fuel cell, Japanese Patent Laid-Open No. 168473/1982 discloses conductive ultrafine particles carrying a catalyst on a conductive base material such as carbon paper or carbon woven cloth, and the above ultrafine particles. Of the present invention, a mixture layer containing a conductive substance having a volume of 10 3 times or more of the maximum particle volume is formed as an electrode catalyst layer.
【０００６】しかしながら、このような燃料電池の電極
触媒層をスプレー法により形成する場合には、電極触媒
材料の歩留りが悪く、均一な膜の形成が困難であるとい
う問題がある。この場合、スプレーを広角にすると均一
な膜の形成には効果があるが、歩留りは悪化する。電極
触媒層には通常Ｐｔ等の高価な金属を使用するため、歩
留りは製造コストに大きな影響を与える。さらに厚膜の
ものを形成しようとすると、時間がかかりすぎるという
問題もある。However, when the electrode catalyst layer of such a fuel cell is formed by the spray method, there is a problem that the yield of the electrode catalyst material is low and it is difficult to form a uniform film. In this case, if the spray is wide angle, it is effective in forming a uniform film, but the yield is deteriorated. Since an expensive metal such as Pt is usually used for the electrode catalyst layer, the yield greatly affects the manufacturing cost. There is also a problem that it takes too much time to form a thick film.
【０００７】また塗布法では、イオン交換膜上に直接
（あるいはＰｔ等のスパッタによる薄膜を介して）塗布
するので、電極材料の歩留りは良いが、得られる膜の均
一性は劣るという問題がある。Further, in the coating method, since the coating is carried out directly on the ion exchange membrane (or via a thin film formed by sputtering such as Pt), the yield of the electrode material is good, but the uniformity of the obtained membrane is poor. .
【０００８】上述したように従来の電極触媒層の形成方
法では、均一な電極触媒層を効率的に製造できなかっ
た。また複数種の材料からなる電極触媒層、あるいは大
面積を有する電極触媒層を効率よく形成し得る方法があ
れば、燃料電池の製造プロセスの削減及びコストの低減
が達成でき、有利である。As described above, the conventional method for forming an electrode catalyst layer cannot efficiently produce a uniform electrode catalyst layer. Further, if there is a method capable of efficiently forming an electrode catalyst layer composed of a plurality of kinds of materials or an electrode catalyst layer having a large area, it is advantageous because the fuel cell manufacturing process and cost can be reduced.
【０００９】したがって本発明の目的は、均一な電極触
媒層を効率的に形成でき、かつ電極触媒層の膜厚を容易
に調整しうる燃料電池の製造方法、及びそれを用いた燃
料電池を提供することである。Therefore, an object of the present invention is to provide a method for producing a fuel cell capable of efficiently forming a uniform electrode catalyst layer and easily adjusting the film thickness of the electrode catalyst layer, and a fuel cell using the same. It is to be.
【００１０】[0010]
【課題を解決するための手段】上記目的に鑑み鋭意研究
の結果、本発明者らは、イオン導電性ポリマーからなる
電解質板上にスクリーン印刷法により電極触媒用のペー
ストを塗布すれば、均一な電極触媒層を効率的に形成で
き、かつ電極触媒層の膜厚を容易に調整し得ることを見
出し、本発明に想到した。As a result of earnest research in view of the above object, the present inventors have found that if an electrode catalyst paste is applied by a screen printing method onto an electrolyte plate made of an ion conductive polymer, a uniform coating is obtained. The inventors have found that the electrode catalyst layer can be efficiently formed and the film thickness of the electrode catalyst layer can be easily adjusted, and have arrived at the present invention.
【００１１】すなわち、本発明の電極−電解質接合体の
製造方法は、電極触媒用のペーストをイオン導電性ポリ
マーからなる電解質板上にスクリーン印刷法により塗布
することにより、電極触媒層を形成することを特徴とす
る。That is, in the method for producing an electrode-electrolyte assembly of the present invention, an electrode catalyst layer is formed by applying an electrode catalyst paste onto an electrolyte plate made of an ion conductive polymer by a screen printing method. Is characterized by.
【００１２】さらに本発明の燃料電池は、上記方法で製
造された電極−電解質接合体を用いてなることを特徴と
する。Further, the fuel cell of the present invention is characterized by using the electrode-electrolyte assembly manufactured by the above method.
【００１３】本発明を以下詳細に説明する。本発明の方
法を適用し得る燃料電池は、典型的にはそれぞれ複数枚
の電解質板及びセパレータを交互に積層した積層体を形
成し、両端に燃料ガスの流入口及び流出口、並びに酸化
剤ガスの流入口及び流出口を具備するマニホールドを取
り付けてなる構造を有する。このような燃料電池のセル
は、１枚の電解質板とその両側に配置された電極板（多
孔質炭素板）からなる。The present invention is described in detail below. A fuel cell to which the method of the present invention can be applied typically forms a laminated body in which a plurality of electrolyte plates and separators are alternately laminated, and a fuel gas inlet and outlet, and an oxidant gas are provided at both ends. It has a structure in which a manifold having an inflow port and an outflow port is attached. A cell of such a fuel cell comprises one electrolyte plate and electrode plates (porous carbon plates) arranged on both sides of the electrolyte plate.
【００１４】このような燃料電池に使用可能な電極−電
解質接合体の層構造を図１に示す。電極−電解質接合体
１は、電解質板１ａと、その両側の電極触媒層１ｂとか
らなる。電解質板１ａはイオン導電性ポリマーにより形
成する。電解質板１ａの膜厚は５０〜２００μｍ程度で
ある。FIG. 1 shows the layer structure of the electrode-electrolyte assembly which can be used in such a fuel cell. The electrode-electrolyte assembly 1 is composed of an electrolyte plate 1a and electrode catalyst layers 1b on both sides thereof. The electrolyte plate 1a is formed of an ion conductive polymer. The thickness of the electrolyte plate 1a is about 50 to 200 μm.
【００１５】また電極触媒層１ｂは、白金族金属の粉
末、カーボンブラック、及びポリテトラフルオロエチレ
ン等のフッ素樹脂をイオン導電性ポリマーの溶液に分散
させたペーストから形成する。白金族金属の粉末はカー
ボンブラックに担持させても良い。また白金族金属の代
わりに白金と他の金属からなる白金含有合金を用いても
良い。上記ペーストの組成は、イオン導電性ポリマー溶
液の固形分を１００重量部として、白金族金属粉末が１
〜２００重量部であり、カーボンブラックが１〜５００
重量部であり、フッ素樹脂粉末が１〜２００重量部であ
る。The electrode catalyst layer 1b is formed from a paste prepared by dispersing a platinum group metal powder, carbon black, and a fluororesin such as polytetrafluoroethylene in a solution of an ion conductive polymer. The platinum group metal powder may be supported on carbon black. Further, instead of the platinum group metal, a platinum-containing alloy composed of platinum and another metal may be used. The composition of the above paste is such that the platinum group metal powder is 1 when the solid content of the ion conductive polymer solution is 100 parts by weight.
~ 200 parts by weight, carbon black 1 ~ 500
By weight, the fluororesin powder is 1 to 200 parts by weight.
【００１６】次に上記各材料により、電極−電解質接合
体を製造する方法を説明する。イオン交換膜１ａ上に上
記電極触媒ペーストをスクリーン印刷するが、その前に
イオン交換膜上にプラズマエッチング処理を施せば、イ
オン交換膜の表面に微細な凹凸が形成され、電極触媒と
の接着力が向上する。スクリーン印刷法は、枠に張った
スクリーンを通してペーストを塗布する公知の技術であ
る。上記スクリーン印刷法によるペーストの塗布量は乾
燥重量で０．５〜２０ｍｇ／ｃｍ２程度である。Next, a method for producing an electrode-electrolyte assembly using the above materials will be described. The electrode catalyst paste is screen-printed on the ion exchange membrane 1a, but if plasma etching is performed on the ion exchange membrane before that, fine irregularities are formed on the surface of the ion exchange membrane, and the adhesive force with the electrode catalyst is increased. Is improved. The screen printing method is a known technique of applying a paste through a screen stretched over a frame. The amount of the paste applied by the screen printing method is about 0.5 to 20 mg / cm 2 in dry weight.
【００１７】この方法では、スクリーンメッシュの粗
さ、エマルジョンの厚さ、印刷速度等の印刷条件を変え
ることにより、塗布量の調整が自在であり、複数種の触
媒ペーストを積層するのも容易である。また得られる電
極触媒層の厚さが均一であり、しかも余分な電極触媒材
料がイオン交換膜の所定部分以外に塗布されないので、
電極触媒材料の無駄がない。In this method, the coating amount can be freely adjusted by changing the printing conditions such as the roughness of the screen mesh, the thickness of the emulsion and the printing speed, and it is easy to stack a plurality of types of catalyst paste. is there. Moreover, since the thickness of the obtained electrode catalyst layer is uniform, and since the excess electrode catalyst material is not applied to a portion other than the predetermined portion of the ion exchange membrane,
There is no waste of electrode catalyst material.
【００１８】このようにして得られた電極−電解質接合
体１には、通常ホットプレス等の加熱加圧処理を行う。
上記加熱加圧処理の条件は温度６０〜２００℃程度、圧
力５０〜３００ｋｇ／ｃｍ２程度である。The electrode-electrolyte assembly 1 thus obtained is usually subjected to a heat and pressure treatment such as hot pressing.
The conditions of the heat and pressure treatment are a temperature of about 60 to 200 ° C. and a pressure of about 50 to 300 kg / cm 2 .
【００１９】以上本発明を添付図面を参照して説明した
が、本発明はこれらに限定されることはなく、種々の形
式の積層型燃料電池に適応が可能である。Although the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to these and can be applied to various types of stacked fuel cells.
【００２０】[0020]
【実施例】本発明を以下の実施例によりさらに詳細に説
明する。実施例１
白金ブラック２ｇと、カーボンブラック１ｇと、ポリテ
トラフルオロエチレン粉末１ｇとを、ナフィオン（登録
商標）溶液（アルドリッチ社製、５重量％溶液）４０ｍ
ｌと混合し、電極触媒用のペーストを調製した。The present invention will be described in more detail by the following examples. Example 1 2 g of platinum black, 1 g of carbon black and 1 g of polytetrafluoroethylene powder were mixed with 40 m of a Nafion (registered trademark) solution (manufactured by Aldrich, 5% by weight solution).
It mixed with 1 and prepared the paste for electrode catalysts.
【００２１】次にナフィオン１１７（登録商標）の１０
ｃｍ×１０ｃｍのフィルム（厚さ１７５μｍ）をアセト
ンで洗浄し、続いて塩酸処理を施した後、乾燥した。こ
れに対し、スパッタ装置により５０ｍｍφの大きさに３
０分間プラズマエッチング処理を施した。Next, 10 of Nafion 117 (registered trademark)
A cm × 10 cm film (thickness: 175 μm) was washed with acetone, subsequently treated with hydrochloric acid, and then dried. On the other hand, the size of 50 mmφ is 3
A plasma etching process was performed for 0 minutes.
【００２２】このフィルムに対して、切り抜き製版スク
リーンにより５０ｍｍφの大きさに上記ペーストをベタ
印刷を行った。塗布量は乾燥重量で約２ｍｇ／ｃｍ２と
した。さらに加熱プレスにより１００℃及び１５０ｋｇ
／ｃｍ２で１分間ホットプレスを行い、厚さ約２３０μ
ｍの燃料電池用の電極−電解質接合体を得た。The above paste was solid-printed on this film with a cut-out plate making screen to a size of 50 mmφ. The coating amount was about 2 mg / cm 2 in dry weight. Furthermore, by heat press 100 ℃ and 150kg
Hot press at 1 / cm 2 for about 1 minute, thickness about 230μ
m of the fuel cell electrode-electrolyte assembly was obtained.
【００２３】このようにして得られた電極−電解質接合
体においては、電極触媒層の厚さはほぼ均一であった。In the thus obtained electrode-electrolyte assembly, the thickness of the electrode catalyst layer was substantially uniform.
【００２４】[0024]
【発明の効果】以上に詳述した通り、本発明の電極−電
解質接合体の製造方法においては、電解質板上に電極触
媒用のペーストを、スクリーン印刷により塗布すること
により電極触媒層を形成しているので、均一な電極触媒
層を効率的に形成でき、かつ電極触媒層の膜厚の調整が
容易である。As described in detail above, in the method for producing an electrode-electrolyte assembly of the present invention, the electrode catalyst paste is applied onto the electrolyte plate by screen printing to form the electrode catalyst layer. Therefore, a uniform electrode catalyst layer can be efficiently formed, and the thickness of the electrode catalyst layer can be easily adjusted.
【図１】本発明の方法による燃料電池の電極−電解質接
合体の層構成を示す概略図である。FIG. 1 is a schematic view showing a layer structure of an electrode-electrolyte assembly of a fuel cell according to the method of the present invention.
１・・・電極−電解質接合体 １ａ・・・イオン交換膜（イオン導電性ポリマー） １ｂ・・・電極触媒層 1 ... Electrode-electrolyte assembly 1a ... Ion exchange membrane (ion conductive polymer) 1b ... Electrode catalyst layer
フロントページの続き (56)参考文献 特開 昭63−179088（ＪＰ，Ａ) 特開 昭62−196389（ＪＰ，Ａ) 特開 昭56−62545（ＪＰ，Ａ) 特開 平３−79783（ＪＰ，Ａ) 特開 昭61−295387（ＪＰ，Ａ) 特開 平３−145062（ＪＰ，Ａ) 特開 昭56−35785（ＪＰ，Ａ) 特開 昭59−70785（ＪＰ，Ａ) 特開 昭57−85827（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 8/02 H01M 8/10 H01M 4/88 Continuation of front page (56) Reference JP-A-63-179088 (JP, A) JP-A-62-196389 (JP, A) JP-A-56-62545 (JP, A) JP-A-3-79783 (JP , A) JP 61-295387 (JP, A) JP 3-145062 (JP, A) JP 56-35785 (JP, A) JP 59-70785 (JP, A) JP 57-85827 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) H01M 8/02 H01M 8/10 H01M 4/88
Claims (6)
リマーからなる電解質板上にスクリーン印刷法により塗
布することにより、実質的に均一な厚さを有する電極触
媒層を形成する燃料電池用の電極−電解質接合体の製造
方法であって、前記ペーストはイオン導電性ポリマーの
溶液に白金族金属又は白金含有合金の粉末、カーボンブ
ラック及びフッ素樹脂粉末を混合してなり、前記イオン
導電性ポリマー溶液の固形分を100重量部として、前記
白金族金属又は白金含有合金の粉末は１〜200重量部で
あり、前記カーボンブラックは１〜500重量部であり、
前記フッ素樹脂粉末は１〜200重量部であることを特徴
とする電極−電解質接合体の製造方法。1. An electrode for a fuel cell in which an electrode catalyst paste having a substantially uniform thickness is formed by applying an electrode catalyst paste onto an electrolyte plate made of an ion conductive polymer by a screen printing method. -Manufacture of an electrolyte assembly
A method, wherein the paste comprises an ionically conductive polymer.
Powder of platinum group metal or platinum-containing alloy, carbon
Mixing rack and fluororesin powder,
The solid content of the conductive polymer solution as 100 parts by weight,
Powder of platinum group metal or platinum-containing alloy is 1 to 200 parts by weight.
And the carbon black is 1 to 500 parts by weight,
The method for producing an electrode-electrolyte assembly, wherein the fluororesin powder is 1 to 200 parts by weight .
製造方法において、前記白金族金属又は白金含有合金の
粉末を前記カーボンブラックに担持させたことを特徴と
する電極−電解質接合体の製造方法。2. The method for manufacturing an electrode-electrolyte assembly according to claim 1 , wherein the carbon black carries powder of the platinum group metal or platinum-containing alloy. Production method.
合体の製造方法において、スクリーン印刷の前に、前記
電解質板にプラズマエッチング処理を施すことを特徴と
する電極−電解質接合体の製造方法。3. A according to claim 1 or 2 electrodes - in the manufacturing method of the electrolyte assembly, in front of the screen printing, the electrode is characterized by performing a plasma etching process on the electrolyte plate - preparation of the electrolyte assembly Method.
電解質接合体の製造方法において、前記ペーストの塗布
量が乾燥重量で0.5〜20 mg/cm2であることを特徴とする
電極−電解質接合体の製造方法。4. The electrode according to any one of claims 1 to 3.
A method for producing an electrode-electrolyte assembly, wherein the applied amount of the paste is 0.5 to 20 mg / cm 2 in terms of dry weight in the method for producing an electrolyte assembly.
電解質接合体の製造方法において、前記電解質板上に電
極触媒層を形成した後、温度60〜200℃、圧力50〜300 k
g/cm2で加熱加圧処理を施すことを特徴とする電極−電
解質接合体の製造方法。5. The electrode according to any one of claims 1 to 4.
In the method for producing an electrolyte joined body, after forming an electrode catalyst layer on the electrolyte plate, the temperature is 60 to 200 ° C., and the pressure is 50 to 300 k.
A method for producing an electrode-electrolyte assembly, which comprises performing a heating / pressurizing treatment at g / cm 2 .
製造された電極−電解質接合体を用いてなることを特徴
とする燃料電池。6. The method of claim 1-5 or the electrode produced by the method according to - fuel cell characterized by using the electrolyte assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20736191A JP3442408B2 (en) | 1991-07-24 | 1991-07-24 | Method for producing electrode-electrolyte assembly and fuel cell using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20736191A JP3442408B2 (en) | 1991-07-24 | 1991-07-24 | Method for producing electrode-electrolyte assembly and fuel cell using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0529005A JPH0529005A (en) | 1993-02-05 |
| JP3442408B2 true JP3442408B2 (en) | 2003-09-02 |
Family
ID=16538463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20736191A Expired - Fee Related JP3442408B2 (en) | 1991-07-24 | 1991-07-24 | Method for producing electrode-electrolyte assembly and fuel cell using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3442408B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4327254A1 (en) * | 1993-08-13 | 1995-02-16 | Mannesmann Ag | Process for the production of catalytically active gas diffusion electrodes |
| EP0641033B1 (en) * | 1993-08-31 | 1999-03-31 | Compur Monitors Sensor Technology GmbH | Method of making a catalytically active gas diffusion electrode for electrochemical cells |
| US6042959A (en) * | 1997-10-10 | 2000-03-28 | 3M Innovative Properties Company | Membrane electrode assembly and method of its manufacture |
| US6300000B1 (en) * | 1999-06-18 | 2001-10-09 | Gore Enterprise Holdings | Fuel cell membrane electrode assemblies with improved power outputs and poison resistance |
| JP4848589B2 (en) * | 2001-02-07 | 2011-12-28 | 株式会社カネカ | Membrane-electrode assembly, manufacturing method thereof, and fuel cell |
| JP2003317735A (en) * | 2002-04-18 | 2003-11-07 | Nec Corp | Solid high polymer electrolyte fuel cell, method for manufacturing solid high polymer electrolyte film for fuel cell and fuel cell |
| JP2006054165A (en) * | 2004-07-15 | 2006-02-23 | Honda Motor Co Ltd | Polymer fuel electrolyte cell and manufacturing method of polymer electrolyte fuel cell |
-
1991
- 1991-07-24 JP JP20736191A patent/JP3442408B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0529005A (en) | 1993-02-05 |
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