JP3249227B2 - Manufacturing method of gas diffusion electrode - Google Patents
Manufacturing method of gas diffusion electrodeInfo
- Publication number
- JP3249227B2 JP3249227B2 JP04573893A JP4573893A JP3249227B2 JP 3249227 B2 JP3249227 B2 JP 3249227B2 JP 04573893 A JP04573893 A JP 04573893A JP 4573893 A JP4573893 A JP 4573893A JP 3249227 B2 JP3249227 B2 JP 3249227B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- gas diffusion
- surfactant
- carbon black
- reaction layer
- 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
-
- 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
- Y02E60/10—Energy storage using batteries
-
- 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
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Electrolytic Production Of Metals (AREA)
- Inert Electrodes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガス拡散電極の製造方
法に関する。The present invention relates to a method for manufacturing a gas diffusion electrode.
【０００２】[0002]
【従来の技術】ガス拡散電極は、反応層のみからなるも
のと、反応層とガス拡散層とからなるものがある。2. Description of the Related Art There are two types of gas diffusion electrodes, one consisting only of a reaction layer and the other consisting of a reaction layer and a gas diffusion layer.
【０００３】反応層は、液体の浸入できる微細な通路
（親水部）と気体の出入可能な微細な通路（撥水部）が
入り組み接し合って混在しているものである。一般的に
液体の浸入できる微細な通路には触媒が担持されてお
り、気体の出入可能な微細な通路には触媒は多くの場合
必要としない。また親水部は主にポリ四弗化エチレンと
親水性カーボンブラックからなっており、撥水部は主に
ポリ四弗化エチレンと撥水性カーボンブラックからなっ
ている。[0003] The reaction layer is a mixture of a fine passage (hydrophilic portion) through which a liquid can enter and a fine passage (water-repellent portion) through which a gas can enter and exit. Generally, a catalyst is carried in a fine passage through which a liquid can enter, and a catalyst is not required in many cases in a fine passage through which a gas can enter and exit. The hydrophilic part is mainly composed of polytetrafluoroethylene and hydrophilic carbon black, and the water-repellent part is mainly composed of polytetrafluoroethylene and water-repellent carbon black.
【０００４】一方、ガス拡散層は、気体の出入可能な微
細な通路（撥水部）を有するもので、液体は浸入透過で
きないものである。このガス拡散層はポリ四弗化エチレ
ンと撥水性カーボンブラックとからなっている。On the other hand, the gas diffusion layer has a fine passage (water-repellent portion) through which gas can enter and exit, and cannot penetrate and permeate liquid. This gas diffusion layer is composed of polytetrafluoroethylene and water-repellent carbon black.
【０００５】従来、反応層のみからなるガス拡散電極を
作るには、親水性カーボンブラック、撥水性カーボンブ
ラック、ポリ四弗化エチレンを界面活性剤を添加して混
合し（このとき界面活性剤を添加しないとカーボンブラ
ックが分散できない）、次に濾過し乾燥、粉砕して溶剤
を添加するか又は濾過しケーキを作成して溶剤を浸透
し、次いで圧延によりシートを成形し、次いで加熱(280
℃程度）して溶剤及び界面活性剤を蒸発及び分解除去し
て反応層シートを作成し、次いでこの反応層シートを裁
断し、触媒の担持と加熱加圧のいずれかより先に行って
電極を作成している。また反応層原料から界面活性剤等
を除き、粉末法で電極を作る場合もあり、その他にコー
ティングやスプレー法でシート状にして電極を作る場合
もある。Conventionally, in order to produce a gas diffusion electrode comprising only a reaction layer, a hydrophilic carbon black, a water-repellent carbon black, and polytetrafluoroethylene are added to a surfactant and mixed (at this time, the surfactant is used). If not added, carbon black cannot be dispersed), and then filtered, dried and pulverized to add a solvent or filtered to form a cake and impregnated with the solvent, then rolled to form a sheet, and then heated (280
℃) to evaporate and decompose and remove the solvent and surfactant to form a reaction layer sheet, then cut this reaction layer sheet, and carry out either the loading of the catalyst or the heating and pressurization to form the electrode. Creating. The electrode may be prepared by a powder method by removing a surfactant or the like from the raw material of the reaction layer. In addition, the electrode may be formed in a sheet shape by coating or spraying.
【０００６】また反応層とガス拡散層とからなるガス拡
散電極を作るには、前記と同様に反応層シートを作成す
る一方、撥水性カーボンブラックとポリ四弗化エチレン
を界面活性剤を添加して混合し、次に濾過し、乾燥、粉
砕して溶剤を添加するか又は濾過しケーキを作成して溶
剤を浸透し、次いで圧延によりシートを成形し、次いで
加熱(280℃程度）して溶剤及び界面活性剤を蒸発及び分
解除去してガス拡散層シートを作成し、次いで前記反応
層シートとガス拡散層シートを裁断し、反応層シートの
みに触媒を担持した後、両シートを重ね加熱加圧し一体
化して電極を作成している。In order to form a gas diffusion electrode comprising a reaction layer and a gas diffusion layer, a reaction layer sheet is prepared in the same manner as described above, while adding a surfactant to water-repellent carbon black and polytetrafluoroethylene. The mixture is then filtered, dried and crushed to add a solvent or filtered to form a cake and impregnated with the solvent, then rolled to form a sheet, and then heated (about 280 ° C.) to form a sheet. Then, the gas diffusion layer sheet is prepared by evaporating and decomposing and removing the surfactant, then the reaction layer sheet and the gas diffusion layer sheet are cut, and the catalyst is carried only on the reaction layer sheet. The electrodes are made by pressing and integrating.
【０００７】ところで、上記いずれのガス拡散電極の製
造方法においても反応層シート及びガス拡散層シートを
作成する直前に、圧延により成形したシートを加熱(280
℃程度）して溶剤及び界面活性剤を蒸発及び分解除去し
ているが、実際には溶剤は蒸発するが、界面活性剤は一
部がタール状になってポリ四弗化エチレン上に残り、界
面活性剤を全部除去することが甚だ困難であった。By the way, in any of the above gas diffusion electrode manufacturing methods, the sheet formed by rolling is heated (280) immediately before forming the reaction layer sheet and the gas diffusion layer sheet.
° C) to evaporate and decompose and remove the solvent and the surfactant. In practice, the solvent evaporates, but the surfactant is partially tarred and remains on the polytetrafluoroethylene, It was extremely difficult to remove all the surfactant.
【０００８】界面活性剤がポリ四弗化エチレン上にター
ル状に残っていると、電極材としている中に反応層にあ
っては、気体の出入可能な微細な通路（撥水部）に液体
が浸入するようになり、気体の出入可能な微細な通路
（撥水部）と液体の浸入できる微細な通路（親水部）の
接し合う面積が減少して電極が劣化し、寿命が短くな
る。またガス拡散層にあっては、気体の出入可能な微細
な通路（撥水部）に液体が浸入するようになり、液洩れ
してくると同時に気体の出入が減り、電極が劣化し、寿
命が短くなる。If the surfactant remains in the form of tar on the polytetrafluoroethylene, the reaction layer is used as an electrode material, and the liquid flows into fine passages (water-repellent portions) through which gas can enter and exit. , And the contact area between the fine passage (water repellent portion) through which gas can enter and the fine passage (hydrophilic portion) through which liquid can enter is reduced, the electrode is deteriorated, and the life is shortened. In the gas diffusion layer, the liquid enters the fine passages (water-repellent portions) through which gas can enter and exit, and at the same time as the liquid leaks, the amount of gas entering and exiting decreases, the electrodes deteriorate, and the life of the electrode deteriorates. Becomes shorter.
【０００９】[0009]
【発明が解決しようとする課題】そこで本発明は、界面
活性剤を完全に除去して、長時間使用しても気体の出入
可能な微細な通路（撥水部）に液体が浸入することのな
いガス拡散電極を製造する方法を提供しようとするもの
である。SUMMARY OF THE INVENTION Accordingly, the present invention provides a method for removing a surfactant completely and preventing liquid from entering a fine passage (water-repellent portion) through which gas can enter and exit even when used for a long time. The present invention seeks to provide a method for producing a gas diffusion electrode.
【００１０】[0010]
【課題を解決するための手段】上記課題を解決するため
の本発明のガス拡散電極の製造方法の１つは、親水性カ
ーボンブラック、撥水性カーボンブラック、ポリ四弗化
エチレンを界面活性剤を添加して分散混合する方法で作
成した反応層原料又はシート状反応層を超音波照射の流
動有機溶媒槽中に浸漬してシート中の界面活性剤を溶出
除去して反応層シートを作成し、次いでこの反応層シー
トを裁断し、触媒の担持と加熱加圧をいずれかより先に
行って電極を作成することを特徴とするものである。In order to solve the above-mentioned problems, one of the methods for producing a gas diffusion electrode of the present invention is to use hydrophilic carbon black, water-repellent carbon black and polytetrafluoroethylene with a surfactant. The reaction layer raw material or sheet-like reaction layer prepared by the method of adding and dispersing and mixing is immersed in a fluidized organic solvent bath of ultrasonic irradiation to elute and remove the surfactant in the sheet to form a reaction layer sheet, Next, the reaction layer sheet is cut, and the electrode is prepared by carrying out the catalyst loading and the heating and pressing before any one of them.
【００１１】本発明のガス拡散電極の製造方法の他の１
つは、親水性カーボンブラック、撥水性カーボンブラッ
ク、ポリ四弗化エチレンを界面活性剤から成る混合液を
分散させる方法でシートを成形し、該シートを超音波照
射の流動有機溶媒槽中に浸漬して、シート中の界面活性
剤等を溶出除去して反応層シートを作成し、一方撥水性
カーボンブラック、ポリ四弗化エチレンに界面活性剤等
を添加して分散混合する方法でシートを成形し、該シー
トを超音波照射の流動有機溶媒槽中に浸漬してシート中
の界面活性剤を溶出除去してガス拡散層シートを作成
し、次いで前記反応層シートとガス拡散層シートを裁断
し、反応層シートのみに触媒を担持した後両シートを重
ね加熱加圧し一体化して電極を作成することを特徴とす
るものである。Another one of the manufacturing methods of the gas diffusion electrode of the present invention.
First, a sheet is formed by a method of dispersing a mixture of hydrophilic carbon black, water-repellent carbon black, and polytetrafluoroethylene in a surfactant, and the sheet is immersed in a flowing organic solvent bath of ultrasonic irradiation. Then, the surface active agent and the like in the sheet are eluted and removed to prepare a reaction layer sheet. On the other hand, the sheet is formed by adding a surfactant and the like to water-repellent carbon black and polytetrafluoroethylene and dispersing and mixing. Then, the sheet is immersed in a flowing organic solvent bath of ultrasonic irradiation to elute and remove the surfactant in the sheet to form a gas diffusion layer sheet, and then cut the reaction layer sheet and the gas diffusion layer sheet. After the catalyst is carried only on the reaction layer sheet, the two sheets are stacked and heated and pressurized to form an electrode.
【００１２】[0012]
【作用】上記のように本発明のガス拡散電極の製造方法
によれば、界面活性剤がポリ四弗化エチレン上に残るこ
とがないので、タール状のものが発生することがなく、
長時間使用しても気体の出入可能な微細な通路（撥水
部）に液体が浸入することがなく、従って電極の劣化が
なく、長寿命のガス拡散電極を得ることができる。According to the method for producing a gas diffusion electrode of the present invention as described above, the surfactant does not remain on the polytetrafluoroethylene, so that tar-like substances are not generated.
Even when used for a long time, the liquid does not enter the fine passage (water-repellent portion) through which gas can enter and exit, so that the electrode is not deteriorated and a long-life gas diffusion electrode can be obtained.
【００１３】[0013]
【実施例】本発明のガス拡散電極の製造方法の１つの一
実施例を説明すると、平均粒径420Åの親水性カーボン
ブラックと撥水性カーボンブラックと平均粒径 0.3μｍ
のポリ四弗化エチレン粉末を７：３：３の割合で配し、
これに界面活性剤、本例では商品名トライトンを５％の
割合で添加して混合し、次に濾過器に注入して濾過し、
乾燥、粉砕して溶剤本例ではソルベントナフサを 1.0：
2.0 の割合で添加し、次いで圧延により 0.4mm厚のシー
トを成形し、次にソルベントナフサを界面活性剤の分解
しない温度（60℃）で加熱蒸発した後、シートをエタノ
ール、トルエン、ベンゼン、トリクロロエチレン、１，
１，１−トリクロロエタン等の溶媒、本例ではトルエン
が充填されて流動している溶媒槽中に浸漬し出力50Ｗ程
度の超音波を照射して、シート中の界面活性剤であるト
ライトンを溶出除去して反応層シートを作成し、次いで
この反応層シートを 120mm× 120mmに裁断し、白金族金
属、その酸化物、それらの合金、卑金属酸化物等の触
媒、本例ではＰｔを担持し、Ｃｕアミとともに 380℃、
500kg／cm2 で加熱加圧して厚さ 0.4mmの電極を作成し
た。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the method for producing a gas diffusion electrode according to the present invention will be described. A hydrophilic carbon black having an average particle diameter of 420 °, a water-repellent carbon black and an average particle diameter of 0.3 μm are described.
Of polytetrafluoroethylene powder in a ratio of 7: 3: 3,
To this, a surfactant, in this example, Triton (trade name) is added at a ratio of 5%, mixed and then injected into a filter and filtered.
Dry and pulverize the solvent. In this example, the solvent naphtha is 1.0:
2.0%, then rolled to form a 0.4mm thick sheet, then heated and evaporated the solvent naphtha at a temperature (60 ° C) at which the surfactant did not decompose, then added ethanol, toluene, benzene, trichloroethylene , 1,
It is immersed in a solvent tank filled with a solvent such as 1,1-trichloroethane, in this case, toluene and flowing, and irradiated with ultrasonic waves of about 50 W to elute and remove Triton, a surfactant in the sheet. Then, the reaction layer sheet was cut into 120 mm x 120 mm, and a platinum group metal, an oxide thereof, an alloy thereof, a base metal oxide or other catalyst, in this example, Pt was supported, and Cu was loaded. 380 ℃ with Ami,
An electrode having a thickness of 0.4 mm was prepared by heating and pressing at 500 kg / cm 2 .
【００１４】次に本発明のガス拡散電極の製造方法の他
の１つの一実施例を説明すると、前記実施例と同様に反
応層シートを作成する一方、平均粒径 420Åの撥水性カ
ーボンブラックと平均粒径 0.3μｍのポリ四弗化エチレ
ン粉末を７：３の割合で配し、これに界面活性剤、本例
では商品名トライトンを６％の割合で添加して混合し、
次に濾過器に注入して濾過し、乾燥、粉砕して、溶剤、
本例ではソルベントナフサを１：1.85の割合で添加し、
次いで圧延により 0.6mm厚のシートを成形し、次にソル
ベントナフサを界面活性剤の分解しない温度（80℃）で
加熱蒸発した後、シートを溶媒、本例ではベンゼンが充
填されて流動している溶媒槽中に浸漬し出力50Ｗ程度の
超音波を照射して、シート中の界面活性剤であるトライ
トンを溶出除去してガス拡散層シートを作成し、次いで
前記反応層シートを 0.2mmとしたものとガス拡散層シー
トを120 mm× 120mmに裁断し、反応層シートのみに触
媒、本例ではＰｔ−Ｐｄ合金を担持した後、両シートを
重ね、 380℃、 600kg／cm2で加熱加圧し一体化して厚
さ 0.8mmの電極を作成し、然る後ガス拡散層側の面に網
状（50メッシュ）の集電体を貼り合わせた。Next, another embodiment of the method for manufacturing a gas diffusion electrode according to the present invention will be described. A reaction layer sheet is prepared in the same manner as in the above embodiment, and a water-repellent carbon black having an average particle diameter of 420 ° is used. A polytetrafluoroethylene powder having an average particle size of 0.3 μm is arranged in a ratio of 7: 3, and a surfactant, in this example, Triton (trade name in this example) is added at a ratio of 6% and mixed.
Then pour into a filter, filter, dry, pulverize, solvent,
In this example, solvent naphtha was added at a ratio of 1: 1.85,
Next, a sheet having a thickness of 0.6 mm is formed by rolling, and then the solvent naphtha is heated and evaporated at a temperature at which the surfactant is not decomposed (80 ° C.). A gas diffusion layer sheet is prepared by immersing in a solvent bath and irradiating ultrasonic waves with an output of about 50 W to elute and remove Triton, which is a surfactant, in the sheet to form a gas diffusion layer sheet. And the gas diffusion layer sheet are cut into 120 mm x 120 mm, and the catalyst, Pt-Pd alloy in this example, is supported only on the reaction layer sheet. Then, both sheets are stacked, and heated and pressed at 380 ° C and 600 kg / cm 2 to form a unit. Then, an electrode having a thickness of 0.8 mm was formed, and then a net-like (50 mesh) current collector was bonded to the surface on the gas diffusion layer side.
【００１５】こうして得た２つの実施例のガス拡散電極
と従来の方法により得たガス拡散電極に、界面活性剤が
分解してタール状に残っているか否かを検査すべく、各
ガス拡散電極をアルカリ溶液、本例では25％ＫＯＨ溶液
中に浸漬した処、従来の方法により得たガス拡散電極で
はアルカリ溶液がかっ色となってタール状のものが溶け
出し、界面活性剤が残っていることが判明したが、実施
例のガス拡散電極ではアルカリ溶液が全く変色せず、界
面活性剤が全く残っていないことが判明した。尚、上記
実施例ではガス拡散電極の片面に網状の集電体を貼り合
わせたが、この集電体は必須のものではない。またガス
拡散層を設けた電極の場合、集電体をガス拡散層内に設
けてもよいものである。The gas diffusion electrodes of the two examples thus obtained and the gas diffusion electrodes obtained by the conventional method were inspected to determine whether the surfactant was decomposed and remained in the form of tar. Is immersed in an alkaline solution, in this example, a 25% KOH solution. In the gas diffusion electrode obtained by the conventional method, the alkaline solution turns brown and the tar-like substance is dissolved, and the surfactant remains. However, it was found that in the gas diffusion electrode of the example, the alkali solution did not discolor at all, and no surfactant remained. In the above embodiment, a net-like current collector is bonded to one side of the gas diffusion electrode, but this current collector is not essential. In the case of an electrode provided with a gas diffusion layer, the current collector may be provided inside the gas diffusion layer.
【００１６】[0016]
【発明の効果】以上の通り本発明のガス拡散電極の製造
方法によれば、界面活性剤等をカーボンブラック、ポリ
四弗化エチレン上から完全に除去できて、タール状のも
のが発生することがないので、長時間使用しても気体の
出入可能な微細な通路（撥水部）に液体が浸入すること
がなく、従って電極の劣化のない長寿命のガス拡散電極
を得ることができる。As described above, according to the method for producing a gas diffusion electrode of the present invention, a surfactant or the like can be completely removed from carbon black or polytetrafluoroethylene, and a tar-like substance is generated. Since there is no liquid, the liquid does not penetrate into the fine passages (water-repellent portions) through which gas can enter and exit even when used for a long time, so that a long-life gas diffusion electrode without electrode deterioration can be obtained.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｈ０１Ｍ 4/86 Ｈ０１Ｍ 4/86 Ｂ (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 4/88 C25B 11/12 C25C 7/02 C25D 17/10 H01M 4/04 H01M 4/86 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 identification code FI H01M 4/86 H01M 4/86 B (58) Investigated field (Int.Cl. 7 , DB name) H01M 4/88 C25B 11 / 12 C25C 7/02 C25D 17/10 H01M 4/04 H01M 4/86
Claims (2)
ンブラック、ポリ四弗化エチレンに界面活性剤を添加し
て混合分散する方法で作成した反応層原料又はシート状
反応層を超音波照射の流動有機溶媒槽中に浸漬してシー
ト中の界面活性剤等を溶出除去して反応層シートを作成
し、次いでこの反応層シートを裁断し、触媒の担持と加
熱加圧をいずれかより先に行って電極を作成することを
特徴とするガス拡散電極の製造方法1. A reaction layer raw material or a sheet-like reaction layer prepared by a method in which a surfactant is added to hydrophilic carbon black, water-repellent carbon black, and polytetrafluoroethylene and mixed and dispersed, and a fluidized organic layer is irradiated with ultrasonic waves. A reaction layer sheet is prepared by immersing in a solvent bath to elute and remove the surfactant and the like in the sheet, and then cutting the reaction layer sheet, carrying the catalyst and applying heat and pressure first. Method for producing gas diffusion electrode, characterized by forming electrode
ンブラック、ポリ四弗化エチレンと界面活性剤から成る
混合液を分散させる方法で、シートを成形し、該シート
を超音波照射の流動有機溶媒槽中に浸漬してシート中の
界面活性剤等を溶出除去して反応層シートを作成し、一
方撥水性カーボンブラック、ポリ四弗化エチレンに界面
活性剤を添加して分散混合する方法でシートを成形し、
該シートを超音波照射の流動有機溶媒槽中に浸漬してシ
ート中の界面活性剤を溶出除去してガス拡散層シートを
作成し、次いで前記反応層シートとガス拡散層シートを
裁断し、反応層シートのみに触媒を担持した後両シート
を重ね加熱加圧し一体化して電極を作成することを特徴
とするガス拡散電極の製造方法。2. A sheet is formed by a method of dispersing a mixed liquid comprising hydrophilic carbon black, water-repellent carbon black, polytetrafluoroethylene and a surfactant, and the sheet is subjected to ultrasonic irradiation in a flowing organic solvent tank. A reactive layer sheet is prepared by immersing the sheet in the surface to elute and remove the surfactant and the like, and the sheet is dispersed and mixed by adding a surfactant to water-repellent carbon black and polytetrafluoroethylene. Molded,
The sheet is immersed in a fluidized organic solvent bath of ultrasonic irradiation to elute and remove the surfactant in the sheet to form a gas diffusion layer sheet, and then the reaction layer sheet and the gas diffusion layer sheet are cut and reacted. A method for producing a gas diffusion electrode, wherein a catalyst is supported on only a layer sheet, and then both sheets are stacked and heated and pressed to form an electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04573893A JP3249227B2 (en) | 1993-02-10 | 1993-02-10 | Manufacturing method of gas diffusion electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04573893A JP3249227B2 (en) | 1993-02-10 | 1993-02-10 | Manufacturing method of gas diffusion electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06236763A JPH06236763A (en) | 1994-08-23 |
| JP3249227B2 true JP3249227B2 (en) | 2002-01-21 |
Family
ID=12727662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04573893A Expired - Fee Related JP3249227B2 (en) | 1993-02-10 | 1993-02-10 | Manufacturing method of gas diffusion electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3249227B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5543249A (en) * | 1995-03-01 | 1996-08-06 | Wilson Greatbatch Ltd. | Aqueous blended electrode material for use in electrochemical cells and method of manufacture |
| US6103077A (en) * | 1998-01-02 | 2000-08-15 | De Nora S.P.A. | Structures and methods of manufacture for gas diffusion electrodes and electrode components |
| US6630081B1 (en) | 1999-06-30 | 2003-10-07 | Nagakazu Furuya | Process for producing gas diffusion electrode material |
| KR100716893B1 (en) * | 2005-07-26 | 2007-05-09 | 주식회사 현대오토넷 | Unregistered road registration device and method in vehicle navigation system |
| JP6169860B2 (en) * | 2013-02-27 | 2017-07-26 | 学校法人中部大学 | Cathode catalyst layer and method for producing polymer electrolyte fuel cell |
| CN114068953B (en) * | 2021-10-25 | 2024-05-07 | 上海远瞩新能源科技有限公司 | Preparation method and application of locally reinforced fuel cell gas diffusion layer |
| CN116995251A (en) * | 2023-09-26 | 2023-11-03 | 河南豫氢动力有限公司 | A high-performance gas diffusion layer for fuel cells and its preparation method |
-
1993
- 1993-02-10 JP JP04573893A patent/JP3249227B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06236763A (en) | 1994-08-23 |
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