JPH02215049A - Manufacture of electrode for fuel cell - Google Patents

Manufacture of electrode for fuel cell

Info

Publication number
JPH02215049A
JPH02215049A JP1035403A JP3540389A JPH02215049A JP H02215049 A JPH02215049 A JP H02215049A JP 1035403 A JP1035403 A JP 1035403A JP 3540389 A JP3540389 A JP 3540389A JP H02215049 A JPH02215049 A JP H02215049A
Authority
JP
Japan
Prior art keywords
electrode
base material
electrode base
catalyst
catalyst paste
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.)
Granted
Application number
JP1035403A
Other languages
Japanese (ja)
Other versions
JPH0766814B2 (en
Inventor
Yoshiaki Sakamoto
阪本　芳昭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1035403A priority Critical patent/JPH0766814B2/en
Publication of JPH02215049A publication Critical patent/JPH02215049A/en
Publication of JPH0766814B2 publication Critical patent/JPH0766814B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8803—Supports for the deposition of the catalytic active composition
    • H01M4/8814—Temporary supports, e.g. decal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
    • H01M4/8668—Binders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8825—Methods for deposition of the catalytic active composition
    • H01M4/8828—Coating with slurry or ink
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H01M4/8882—Heat treatment, e.g. drying, baking
    • H01M4/8885—Sintering or firing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H01M4/8896—Pressing, rolling, calendering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8803—Supports for the deposition of the catalytic active composition
    • H01M4/8807—Gas diffusion layers
    • 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

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Inert Electrodes (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は燃料電池用電極の製造方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for manufacturing an electrode for a fuel cell.

〔従来の技術〕[Conventional technology]

第２図は例えば特開昭６０−６５４６５号公報に示す従
来の燃料電池の電極の一般的な模式断面図を示す。図に
おいて、（１）は電極基材であり、導電性多孔質のカー
ボン繊維から構成されたペーパ状のものである。（２）
は触媒層であり、触媒粉末と祝水性結着剤としてのポリ
テトラフルオロエチレン（以下ＰＴＦＥと称す）から構
成されたものである。FIG. 2 shows a general schematic sectional view of an electrode of a conventional fuel cell disclosed in, for example, Japanese Unexamined Patent Publication No. 60-65465. In the figure, (1) is an electrode base material, which is a paper-like material made of conductive porous carbon fiber. (2)
is a catalyst layer, which is composed of catalyst powder and polytetrafluoroethylene (hereinafter referred to as PTFE) as a water-receiving binder.

従来、燃料電池用電極の製造方法は、触媒粉末と撓水性
結着剤としてのＰＴＦＥ及び界面活性剤、溶媒等を混合
分散した触媒ペーストをスクリーン印刷法、スプレー法
、ドクターブレード法又はロールコータ法等の方法によ
り電極基材（１）に直接塗布又は吹付けを行った後、加
熱あるいは真空凍結乾燥により溶媒を除去して触媒層（
２）が形成されていた。Conventionally, the manufacturing method for fuel cell electrodes has been to apply a catalyst paste prepared by mixing and dispersing catalyst powder, PTFE as a water-repellent binder, a surfactant, a solvent, etc. using a screen printing method, a spray method, a doctor blade method, or a roll coater method. After coating or spraying directly onto the electrode base material (1) using methods such as the above, the solvent is removed by heating or vacuum freeze-drying to form a catalyst layer (
2) was formed.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

従来の燃料電池用電極の製造方法は以上のようにカーボ
ン繊維で構成された多孔質のペーパ状の電極基材（１）
に、直接、塗布又は吹付けるため全面又は部分的に、触
媒ペーストが電極基材（１）の多孔部に浸み込んだり、
あるいは電極基材（１）裏面に浸み出したりするため、
電極基材（１）と触媒層（２）の接合部境界の厚さを均
一に制御することが困難であった。そのため電極基材（
１）への浸み込みあるいは電極基材（１）裏面への浸み
出し等、触媒ペースによる電極基材（１）の多孔部への
目詰り、あるいは電極基材（１）裏面に電解質としての
リン酸の液路又は液膜が形成され、電極面内におけるガ
ス拡散孔の閉塞、減少、及び分布のバラツキ等の問題点
があった。さらには加熱乾燥の場合触媒層に粒子の凝集
等のためマッドクラックが発生することも問題の一つで
あった。The conventional method for manufacturing electrodes for fuel cells is as described above, using a porous paper-like electrode base material (1) made of carbon fiber.
Since the catalyst paste is directly applied or sprayed, the catalyst paste may penetrate into the pores of the electrode base material (1) on the entire surface or partially.
Or it may seep out to the back side of the electrode base material (1).
It was difficult to uniformly control the thickness of the boundary between the electrode base material (1) and the catalyst layer (2). Therefore, the electrode base material (
1) or leaching to the back side of the electrode base material (1), clogging of the pores of the electrode base material (1) due to the catalyst paste, or as an electrolyte on the back side of the electrode base material (1). A liquid path or liquid film of phosphoric acid was formed, and there were problems such as clogging and reduction of gas diffusion holes within the electrode surface, and variations in distribution. Furthermore, when drying by heating, mud cracks occur in the catalyst layer due to agglomeration of particles, which is another problem.

この発明は上記のような課題を解決するためなされたも
ので、電極基材と触媒層の接合部境界の厚さを均一化し
高いガス拡散性能を得るとともに触媒層のマッドクラッ
クの発生をなくｔ、、＊ｓｉの特性及び品質の向上を目
的とする。This invention was made to solve the above-mentioned problems, and it makes the thickness of the boundary between the electrode base material and the catalyst layer uniform, obtains high gas diffusion performance, and eliminates the occurrence of mud cracks in the catalyst layer. ,, *Aims to improve the characteristics and quality of si.

〔課題を解決するための手段〕[Means to solve the problem]

この発明に係る燃料電池用電極の製造方法は、触媒粉末
と捏水性結着剤及び界面活性剤、溶媒とを混合分散して
得た触媒ペーストをポリマーフィルム上に塗布した後、
電極基材を前記塗布した触媒ペースト上に重ねて接合し
、触媒ペーストが電極基材の多孔部に深く、浸入しない
様、スペーサを介しパイプローラで電極基材全面を軽く
押圧するようにして接合する。次に真空凍結乾燥、プレ
ス加圧の工程を経て電極基村上に触媒層を転写形成し一
体化したものである。The method for manufacturing a fuel cell electrode according to the present invention includes coating a catalyst paste obtained by mixing and dispersing a catalyst powder, a hydrophobic binder, a surfactant, and a solvent on a polymer film, and then applying the catalyst paste on a polymer film.
The electrode base material is stacked and bonded on the applied catalyst paste, and the entire surface of the electrode base material is lightly pressed with a pipe roller through a spacer to prevent the catalyst paste from penetrating deeply into the pores of the electrode base material. do. Next, through the steps of vacuum freeze-drying and pressing, a catalyst layer was transferred and integrated onto the electrode base layer.

〔作用〕[Effect]

この発明による電極は、電極基材に触媒ペーストを直接
塗布しないで間接的に接合して触媒層を形成するため、
電極基材と触媒層の接合部境界の厚さはバラツキのない
均一化した状態で密着したものである。In the electrode according to the present invention, the catalyst paste is not directly applied to the electrode base material but is indirectly bonded to form the catalyst layer.
The electrode base material and the catalyst layer are in close contact with each other in a uniform state with no variation in thickness at the boundary of the joint.

〔発明の実施例〕[Embodiments of the invention]

以下、この発明の実施例について説明する。 Examples of the present invention will be described below.

〔実施例１〕 第１図（ａ）のこの発明の実施例による製造過程の模式
的断面図に示すように、触媒粉末と結着剤としてのＰＴ
ＦＥ及び界面活性剤、溶媒とを混合分散して得た触媒ペ
ースト（４）をロールコータ法により例えば３６０　Ｘ
　６５０　Ｘ　Ｏ，０５ＩＩＩのポリマーフィルム（３
）、例えばポリイミドフィルム（東し、デュポン製６商
品名カプトン）に塗布した後、ＰＴＦＥ水溶液で捏水処
理した例えば３６０Ｘ６５０Ｘ０．１　ｉｎのカーボン
繊維からなるペーパ状の電極基材（１）を静かに重ね、
触媒ペースト（４）と電極基材（１）が密着するようス
ペーサーを介して軽くパイプローラにより基材全面を押
圧するようにして接合する。次に接合した電極を予備凍
結槽で急速凍結した後、真空凍結乾燥器（図示せず）内
で氷状の溶媒を昇華消失させた後取出し、液圧ブレスに
て加圧後、ポリイミドフィルム（３）をはがし第１図（
ｂ）のこの発明によるＷｌ極の模式的断面図に示すよう
に、触媒層切りを電極基材（１）に転写形成して一体化
したものを焼成して電極を作製した。この製造方法によ
り得た電極は均一な触媒層ｅｐの膜厚を有し、従来方法
の電極に見られた電極基材（１）への部分的な浸み込み
あるいは浸み出し現象の見られない′ものであり、かつ
、触媒層にはマッドクラックのないものであった。[Example 1] As shown in the schematic cross-sectional view of the manufacturing process according to the embodiment of the present invention in FIG. 1(a), catalyst powder and PT as a binder
A catalyst paste (4) obtained by mixing and dispersing FE, a surfactant, and a solvent is coated at 360×, for example, by a roll coater method.
650 x O,05III polymer film (3
), for example, on a polyimide film (manufactured by DuPont, product name: Kapton), and then gently apply a paper-like electrode base material (1) made of carbon fiber, for example, 360 x 650 x 0.1 inches, which has been subjected to water-repellent treatment with a PTFE aqueous solution. Overlapping,
The catalyst paste (4) and the electrode base material (1) are joined by pressing the entire surface of the base material lightly with a pipe roller through a spacer so that the catalyst paste (4) and the electrode base material (1) are in close contact with each other. Next, the bonded electrodes were quickly frozen in a pre-freezing tank, and then taken out after sublimation and disappearance of the ice-like solvent in a vacuum freeze dryer (not shown). After pressurizing with a hydraulic press, a polyimide film ( 3) Peel off the film shown in Figure 1 (
As shown in b), a schematic cross-sectional view of a Wl electrode according to the present invention, an electrode was produced by transferring and forming a catalyst layer cut onto an electrode base material (1) and baking the integrated product. The electrode obtained by this manufacturing method has a uniform thickness of the catalyst layer ep, and the phenomenon of partial seepage or seepage into the electrode base material (1), which was observed in the electrode of the conventional method, is not observed. There were no mud cracks in the catalyst layer.

〔比較例１〕 実施例１と同様の触媒ペースト（４）を、ロールコータ
法により直接例えば３６０ｘ６５０Ｘ０．１　ｔｍの捏
水処理した電極基材（１）に塗布した後、実施例１と同
様の製造工程を経て作製した電極は、塗布時触媒ペース
ト（４）が基材に浸み出したため、電極基材（１）裏面
に触媒層ｅ］）が多量に付着していた。[Comparative Example 1] After applying the same catalyst paste (4) as in Example 1 directly to the water-repelled electrode base material (1) of, for example, 360 x 650 x 0.1 tm by a roll coater method, the same catalyst paste as in Example 1 was applied. In the electrode produced through the manufacturing process, a large amount of the catalyst layer e) was adhered to the back surface of the electrode base material (1) because the catalyst paste (4) oozed into the base material during application.

〔実施例２〕 実施例１と同様の触媒ペースト（４）をロールコータ法
により例えば３６０Ｘ６５０Ｘ０．０５ｍのポリエチレ
ンテレフタレートフィルム（３）（一般商品名マイラー
）に塗布し−た後、未撓水の例えば３６０　Ｘ　６５０
　Ｘ　Ｏ，２ｍの電極基材（１）を使用し、実施例１と
同様の製造工程を経て電極を作製した。この製造方法に
より得た電極は実施例１の溌水処理をした電極基材（１
）を使用して作製した電極と同様、電極基材（１）への
触媒ペースト（４）の浸み込みあるいは浸み出しは見ら
れず、触媒層Ｑ心のマッドクラックもないものであった
。[Example 2] After applying the same catalyst paste (4) as in Example 1 to a polyethylene terephthalate film (3) (common trade name: Mylar) measuring, for example, 360 x 650 x 0.05 m by a roll coater method, unstretched water such as 360 x 650
An electrode was produced through the same manufacturing process as in Example 1 using an electrode base material (1) of X 2 O, 2 m. The electrode obtained by this manufacturing method is the electrode base material (1
), no infiltration or seepage of the catalyst paste (4) into the electrode base material (1) was observed, and there were no mud cracks in the catalyst layer Q core. .

〔比較例２〕 実施例１と同様の触媒ペースト（４）をロールコータ法
により直接未捏水の例えば３６０　Ｘ　６５０　Ｘ　Ｏ
，２ＩＩ冨の電極基材（１）に塗布し、実施例１と同様
の製造工程を経て作製した電極は触媒ペースト（４）が
電極基材（１）裏面に浸み出すとともに１ｗ！ｔＩｉｉ
基材（１）裏面に空気菌りが生じ、電極の面内に直径１
０〜２０ｍ１大の斑点状凹凸のある現象が見られ電極と
して使用できないものであったＯ 〔実施例３〕 実施例１と同様の触媒ペースト（４）をスクリーン印刷
法により例えば２００　Ｘ　２００　Ｘ　Ｏ，０２５冨
冨のポリイミドフィルム（３）に塗布した後、例えば１
５０Ｘ１５０Ｘ０．４ｍｍ　、　１５０Ｘ１５０Ｘ０．
１鰭のカーボン繊維からなるペーパ状の溌水処理した基
材あるいは未捏水の電極基材（１）をそれぞれ触媒ペー
スト（４）と密着するよう軽く、ハケで押圧するように
して接合し以後、実施例１と同様の工程で、電極を作製
した。これらの実施例による電極においても均一な触媒
層Ｑ］）の膜厚が得られ、電極基材（１）への浸み込み
あるいは浸み出しもなく、かつ、マッドクラックのない
もの力５得られた。[Comparative Example 2] The same catalyst paste (4) as in Example 1 was directly coated with unwatered, e.g. 360 x 650 x O, using a roll coater method.
, 2II-rich electrode base material (1) and produced through the same manufacturing process as in Example 1, the catalyst paste (4) oozed out to the back surface of the electrode base material (1) and 1w! tIiii
Air germs are formed on the back side of the base material (1), and a diameter of 1 mm is formed in the plane of the electrode.
[Example 3] The same catalyst paste (4) as in Example 1 was printed using a screen printing method to form, for example, 200 x 200 x O. , 025 Tomomi's polyimide film (3), for example, 1
50X150X0.4mm, 150X150X0.
A paper-like water-repellent substrate made of one fin of carbon fiber or an unwashed electrode substrate (1) is bonded to the catalyst paste (4) by lightly pressing it with a brush so that it adheres to the catalyst paste (4). An electrode was produced using the same steps as in Example 1. Even in the electrodes according to these Examples, a uniform catalyst layer Q]) thickness was obtained, and there was no seepage or seepage into the electrode base material (1), and there were no mud cracks. It was done.

以とのようをここの発明に係る電極の製□造方法によれ
ば、電極基材（１）の厚さ、空隙率、及び捏水の有無に
関係なく、電極基材（１）と触媒層（ロ）の接合部境界
の厚さを均一に制御することが容易になった。According to the method for manufacturing an electrode according to the present invention, the electrode base material (1) and the catalyst can be mixed together regardless of the thickness, porosity, and presence or absence of water mixing of the electrode base material (1). It has become easier to uniformly control the thickness of the joint boundary of the layer (b).

なお、この発明による電極の製造方法に使用するポリマ
ーフィルム（３）は、実施例ではポリイミド１ポリエチ
レンテレフタレートを使用したがポリエチレン、ポリプ
ロピレンでも可能である。またポリマーフィルム（３）
の厚さは０．０２５〜０．１　ｓｎの範囲が望ましい０
．０２５　ｗ、ｍ以下では、触媒ペースト（４）の塗布
時しわが発生し易く、Ｑ、ｌ　１１１以上の厚さでは、
真空凍結乾燥１．−加圧工程後に、触媒層（ロ）からは
がす時の剥離が悪くなる傾向にある。Although polyimide 1 polyethylene terephthalate was used as the polymer film (3) in the method for producing an electrode according to the present invention in the examples, polyethylene or polypropylene may also be used. Also polymer film (3)
The thickness of 0.025 to 0.1 sn is desirable.
．． If the thickness is less than 025 w, m, wrinkles will easily occur when applying the catalyst paste (4), and if the thickness is more than 111,
Vacuum freeze-drying 1. - After the pressurizing step, peeling tends to be difficult when peeling off the catalyst layer (b).

〔発明の効果〕〔Effect of the invention〕

以上のようにこの発明によれば、触媒ペーストを直接、
電極基材に塗布せず、ポリマーフィルムに塗布した後、
ポリマーフィルム上に電極基材を重ねて触媒ペーストと
密着するようしたので、電極基材と触媒層の接合部境界
の厚さを均一に制御できるようになった。そのため、電
極基材の多孔部の触媒層による目詰り、電極基材裏面の
触媒層付着が解消され、従来方法により製造された電極
に比べ、高いガス拡散孔を保有し、マッドクラックのな
い品質の安定した電極が得られる。As described above, according to the present invention, the catalyst paste can be directly applied to
After applying it to the polymer film without applying it to the electrode substrate,
Since the electrode base material was layered on the polymer film so that it was in close contact with the catalyst paste, it became possible to uniformly control the thickness of the boundary between the electrode base material and the catalyst layer. Therefore, clogging caused by the catalyst layer in the porous part of the electrode base material and adhesion of the catalyst layer on the back side of the electrode base material are eliminated, and compared to electrodes manufactured by conventional methods, the electrode has higher gas diffusion pores and has a quality without mud cracks. A stable electrode can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図（ａ）、（ｂ）はこの発明の一実施例による燃料
電池用電極を示す断面図、第２図は従来の燃料電池用電
極を示す断面図である。 図において、（１）は電極基材、（３）はポリマーフィ
ルム、（４）は触媒ペースト、（ロ）は触媒層である。 なお、各図中、同一符号は同一または相当部分を示す。FIGS. 1(a) and 1(b) are cross-sectional views showing a fuel cell electrode according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing a conventional fuel cell electrode. In the figure, (1) is an electrode base material, (3) is a polymer film, (4) is a catalyst paste, and (b) is a catalyst layer. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

【特許請求の範囲】[Claims] 触媒粉末と撥水性結着剤及び界面活性剤、溶媒とを、混
合分散して得た触媒ペーストをポリマーフィルム上に塗
布した後、電極基材を重ねて接合し、真空凍結乾燥、プ
レス加工の工程を経て前記電極基材に触媒層を転写形成
し一体化したことを特徴とする燃料電池用電極の製造方
法。After applying a catalyst paste obtained by mixing and dispersing a catalyst powder, a water-repellent binder, a surfactant, and a solvent onto a polymer film, the electrode base materials are stacked and bonded, and then subjected to vacuum freeze-drying and press processing. A method for producing an electrode for a fuel cell, characterized in that a catalyst layer is transferred and integrated onto the electrode base material through a process.
JP1035403A 1989-02-15 1989-02-15 Method for manufacturing fuel cell electrode Expired - Lifetime JPH0766814B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1035403A JPH0766814B2 (en) 1989-02-15 1989-02-15 Method for manufacturing fuel cell electrode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1035403A JPH0766814B2 (en) 1989-02-15 1989-02-15 Method for manufacturing fuel cell electrode

Publications (2)

Publication Number Publication Date
JPH02215049A true JPH02215049A (en) 1990-08-28
JPH0766814B2 JPH0766814B2 (en) 1995-07-19

Family

ID=12440940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1035403A Expired - Lifetime JPH0766814B2 (en) 1989-02-15 1989-02-15 Method for manufacturing fuel cell electrode

Country Status (1)

Country Link
JP (1) JPH0766814B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0785588A3 (en) * 1996-01-19 2000-05-03 Toyota Jidosha Kabushiki Kaisha Method of manufacturing electrode or electrode-electrolyte membrane joint body for fuel cell and electrode for fuel cell
JP2008527659A (en) * 2005-01-14 2008-07-24 ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト Gas diffusion electrode and process for producing the same and use thereof
JP2011108544A (en) * 2009-11-19 2011-06-02 Fuji Electric Holdings Co Ltd Manufacturing method for gas diffusion electrode
CN115692593A (en) * 2021-07-30 2023-02-03 华中科技大学 A sulfur cathode with layered reinforced concrete structure and its preparation and application

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0785588A3 (en) * 1996-01-19 2000-05-03 Toyota Jidosha Kabushiki Kaisha Method of manufacturing electrode or electrode-electrolyte membrane joint body for fuel cell and electrode for fuel cell
JP2008527659A (en) * 2005-01-14 2008-07-24 ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト Gas diffusion electrode and process for producing the same and use thereof
JP2011108544A (en) * 2009-11-19 2011-06-02 Fuji Electric Holdings Co Ltd Manufacturing method for gas diffusion electrode
CN115692593A (en) * 2021-07-30 2023-02-03 华中科技大学 A sulfur cathode with layered reinforced concrete structure and its preparation and application

Also Published As

Publication number Publication date
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