JP2009004286A - Anode membrane electrode assembly for alkaline fuel cell and alkaline fuel cell using the same as anode - Google Patents
Anode membrane electrode assembly for alkaline fuel cell and alkaline fuel cell using the same as anode Download PDFInfo
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Abstract
【課題】アルカリ型燃料電池のアノード反応を促進させるために、触媒量の増加と、燃料およびＯＨ−イオンの拡散性向上という相反する課題を解決することができるアルカリ型燃料電他用膜電極接合体を提供する。
【解決手段】本発明によるアルカリ型燃料電他用膜電極接合体は、多孔体上に金属あるいは金属化合物を担持させてなる触媒担持体層と、金属メッシュからなり厚みが１００〜１０００μｍである燃料拡散層とが交互に積層されてなるものである。
【選択図】 図１To promote the anode reaction of an alkaline fuel cell, it is possible to solve the conflicting problems of increasing the amount of catalyst and improving the diffusibility of fuel and OH − ions. Provide the body.
A membrane electrode assembly for an alkaline fuel cell and other according to the present invention comprises a catalyst carrier layer in which a metal or a metal compound is supported on a porous body, and a fuel having a thickness of 100 to 1000 μm comprising a metal mesh. Diffusion layers are alternately stacked.
[Selection] Figure 1
Description
本発明は、アルカリ型燃料電池用アノード膜電極接合体およびそれをアノードとして用いたアルカリ型燃料電池に関する。 The present invention relates to an anode membrane electrode assembly for an alkaline fuel cell and an alkaline fuel cell using the same as an anode.
現在、燃料電池として、アルカリ型、リン酸型、溶融炭酸塩型、固体電解質型、固体高分子型等の多様な方式のものが知られている。 Currently, various types of fuel cells such as an alkaline type, a phosphoric acid type, a molten carbonate type, a solid electrolyte type, and a solid polymer type are known.
特許文献１には、苛性アルカリ水溶液を電解液とし、アノードに燃料水素ガスを、カソードに酸素ガスを供給するアルカリ型燃料電池の一般的な構造が開示されている。 Patent Document 1 discloses a general structure of an alkaline fuel cell in which a caustic aqueous solution is used as an electrolyte, fuel hydrogen gas is supplied to the anode, and oxygen gas is supplied to the cathode.
特許文献２には、アノードにメタノールを供給する直接メタノール燃料電池に使用される電極拡散層が開示されている。この電極拡散層は、液状のメタノールの通路となる親水性多孔質凝集体と、アノード反応により生成した二酸化炭素を排出する疎水性多孔質凝集体とを含んでいる。 Patent Document 2 discloses an electrode diffusion layer used in a direct methanol fuel cell that supplies methanol to an anode. The electrode diffusion layer includes a hydrophilic porous aggregate serving as a passage for liquid methanol and a hydrophobic porous aggregate that discharges carbon dioxide generated by the anode reaction.
特許文献３および４には、一対のガス拡散電極を電解質の両面に接合されて有する燃料電池が開示されている。このガス拡散電極は、電解質側の触媒層と、その反対側の金属メッシュ等からなる拡散層とを備えている。 Patent Documents 3 and 4 disclose a fuel cell having a pair of gas diffusion electrodes joined to both surfaces of an electrolyte. This gas diffusion electrode includes a catalyst layer on the electrolyte side and a diffusion layer made of a metal mesh or the like on the opposite side.
従来型のアルカリ型燃料電池の膜電極の構造を図２に示す。 The structure of a membrane electrode of a conventional alkaline fuel cell is shown in FIG.
このような構造の膜電極接合体では、燃料として例えばＮａＨ２ＰＯ３を用いると、アノードおよびカソードにおいて下記に示す反応が起こり、ＯＨ−イオンがイオン伝導体となる：
アノード：ＨＰＯ３ ２−＋３ＯＨ−→ＰＯ４ ３−＋２Ｈ２Ｏ＋２ｅ−
カソード：Ｏ２＋２Ｈ２Ｏ＋４ｅ−→４ＯＨ−
ここでアノード反応に着目すると、多孔質担体に触媒金属が担持されてなるアノードでは、触媒への燃料（ＮａＨ２ＰＯ３）のＨＰＯ３ ２−の移動およびイオン伝導体であるＯＨ−の移動の両方がアノード反応の律速となっていた。すなわち、アノード反応は、アノードの多孔質担体中を拡散する燃料およびＯＨ−イオンの両方の速度によって決まる。他方、アノードの多孔質担体に担持される触媒量を多くすることによってもアノード反応は促進される。
In the membrane electrode assembly having such a structure, when, for example, NaH 2 PO 3 is used as a fuel, the following reactions occur at the anode and the cathode, and OH − ions become ion conductors:
Anode: HPO 3 2− + 3OH − → PO 4 3− + 2H 2 O + 2e −
Cathode: O 2 + 2H 2 O + 4e − → 4OH −
Here, paying attention to the anode reaction, in the anode in which the catalytic metal is supported on the porous carrier, the movement of the HPO 3 2− of the fuel (NaH 2 PO 3 ) to the catalyst and the movement of OH − which is the ionic conductor. Both were rate limiting for the anodic reaction. That is, the anode reaction, fuel and OH diffusion anode in the porous carrier - determined by the speed of both ions. On the other hand, the anode reaction is also promoted by increasing the amount of the catalyst supported on the porous support of the anode.
ところが、アノードの単位体積当たりの触媒担持量が多すぎると、燃料およびＯＨ−イオンの移動が阻害されるようになるため、アノード反応が促進されない。そのため触媒を担持できる量には限界があった。 However, if the amount of catalyst supported per unit volume of the anode is too large, the movement of fuel and OH − ions will be inhibited, and the anode reaction will not be promoted. Therefore, there is a limit to the amount that can support the catalyst.
また、アノードの単位体積当たりの触媒担持量を維持したまま、アノードの厚みを増加させることにより触媒担持量を増加させようとした場合には、燃料の拡散性が悪化するという問題があった。
本発明は、上記のような実状に鑑み、アルカリ型燃料電池のアノード反応を促進させるために、触媒量の増加と、燃料およびＯＨ−イオンの拡散性向上という相反する課題を解決することができるアルカリ型燃料電他用膜電極接合体を提供することを目的とする。 In view of the above circumstances, the present invention can solve the conflicting problems of increasing the amount of catalyst and improving the diffusibility of fuel and OH − ions in order to promote the anode reaction of an alkaline fuel cell. An object of the present invention is to provide a membrane electrode assembly for an alkaline type fuel cell and the like.
本発明は、多孔体上に金属あるいは金属化合物を担持させてなる触媒担持体層と、金属メッシュからなり厚みが１００〜１０００μｍである燃料拡散層とが交互に積層されてなるアルカリ型燃料電池用アノード膜電極接合体である。 The present invention relates to an alkaline fuel cell in which a catalyst support layer formed by supporting a metal or a metal compound on a porous body and a fuel diffusion layer made of a metal mesh and having a thickness of 100 to 1000 μm are alternately stacked. It is an anode membrane electrode assembly.
本発明において、前記多孔体は、好ましくは、カーボンクロス、カーボンペーパー、ニッケル繊維、ニッケル多孔体、ニッケルメッシュおよび銀メッシュからなる群から選択される。 In the present invention, the porous body is preferably selected from the group consisting of carbon cloth, carbon paper, nickel fiber, nickel porous body, nickel mesh, and silver mesh.
前記金属あるいは金属化合物は、好ましくは、白金、ロジウム、ルテニウム、金、鉄、コバルト、ニッケル、銅、錫および鉛からなる群から選択される金属あるいはその化合物である。該金属は、例えば白金、ロジウム、ルテニウム、金、鉄、コバルト、ニッケル、銅、錫および鉛からなる群から選択される金属の合金であってもよい。金属化合物は、例えば白金、ロジウム、ルテニウム、金、鉄、コバルト、ニッケル、銅、錫および鉛からなる群から選択される金属の複合化合物であってもよい。 The metal or metal compound is preferably a metal selected from the group consisting of platinum, rhodium, ruthenium, gold, iron, cobalt, nickel, copper, tin and lead or a compound thereof. The metal may be an alloy of a metal selected from the group consisting of platinum, rhodium, ruthenium, gold, iron, cobalt, nickel, copper, tin and lead, for example. The metal compound may be a composite compound of a metal selected from the group consisting of platinum, rhodium, ruthenium, gold, iron, cobalt, nickel, copper, tin and lead, for example.
前記触媒担持体層は好ましくは２層以上であり、より好ましくは２〜５層である。 The catalyst carrier layer is preferably two or more layers, more preferably 2 to 5 layers.
本発明によるアノード膜電極接合体を用いて構成したアルカリ型燃料電池は、高い最大出力を示すことができる。 The alkaline fuel cell configured using the anode membrane electrode assembly according to the present invention can exhibit a high maximum output.
本発明によれば、アノードを触媒担持体の層と燃料拡散層とを交互に積層する構成とすることにより、触媒量の増加と燃料、ＯＨ−イオンの拡散性向上という相反する課題を同時に解決することができる。したがって、本発明によるアノード膜電極接合体を用いて構成したアルカリ型燃料電池は、高い最大出力を示すことができる。 According to the present invention, the anode is configured by alternately laminating the catalyst carrier layer and the fuel diffusion layer, thereby simultaneously solving the conflicting problems of increasing the amount of catalyst and improving the diffusibility of fuel and OH - ions. can do. Therefore, the alkaline fuel cell configured using the anode membrane electrode assembly according to the present invention can exhibit a high maximum output.
以下に、本発明の実施例およびこれとの比較のための比較例を幾つか示す。 Hereinafter, some examples of the present invention and comparative examples for comparison with the examples will be described.
実施例１
工程１
カーボンペーパー（東レ社製、型番：ＴＧＰＨ−１２０、厚み：０．３５ｍｍ）を硝酸コバルトＣｏ（ＮＯ３）２・６Ｈ２Ｏを０．６ｇ含む水溶液１００ｍｌに浸潰し、水素還元により、７ｍｇＣｏ／ｃｍ２の触媒担持カーボンペーパーを調製した。これを３６ｍｍ×３６ｍｍに切断し、複数枚の触媒担持体（アノード構成部材）を調製した。
Example 1
Process 1
Carbon paper (manufactured by Toray Industries, Inc., model number: TGPH-120, thickness: 0.35 mm) of cobalt nitrate Co (NO 3) Hitatsubushi a 2 · 6H 2 O in aqueous solution 100ml containing 0.6 g, by hydrogen reduction, 7mgCo / cm 2 catalyst-carrying carbon paper was prepared. This was cut into 36 mm × 36 mm to prepare a plurality of catalyst carriers (anode constituent members).
工程２
カーボンペーパー（東レ社製、型番：ＴＧＰＨ−１２０、厚み：０．３５ｍｍ）に、銀粉末（粒径：２μｍ）と、ポリ−４−ビニルピリジンを四級化処理して調製したアニオン交換樹脂と、バインダ（ダイキン社製、ＰＯＬＹＦＬＯＮ（ＴＭ）ＰＴＦＥ、型番：Ｄ−２ＣＥ）とからなる組成物を塗布し、乾燥することにより、２ｍｇＡｇ／ｃｍ２の銀担持カーボンペーパーを調製した。これを３６ｍｍ×３６ｍｍに切断し、触媒担持体（カソード）を調製した。
Process 2
An anion exchange resin prepared by quaternizing carbon powder (manufactured by Toray Industries, model number: TGPH-120, thickness: 0.35 mm) with silver powder (particle size: 2 μm) and poly-4-vinylpyridine A 2 mg Ag / cm 2 silver-supporting carbon paper was prepared by applying a composition composed of a binder (manufactured by Daikin, POLYFLON (TM) PTFE, model number: D-2CE) and drying. This was cut into 36 mm × 36 mm to prepare a catalyst carrier (cathode).
工程３
７０ｍｍ×７０ｍｍに切断したアニオン交換膜（トクヤマ社製：ＡＨＡ）の片面の中央部に、図１に示すように、工程１で調製した触媒担持体、その上に３６ｍｍ×３６ｍｍに切断したニッケルメッシュ（桂田グレイチング社製、線径：０．１ｍｍ、厚み：２００μｍ）、さらにその上に触媒担持体というように、３層の触媒担持体と２層のニッケルメッシュを交互に積層し、アノードを作製した。アニオン交換膜の他方の面、すなわちアノードの反対側の面にてその中央に工程２で調製したカソードを設置した。こうして、アノード膜電極接合体を作製した。
Process 3
At the center of one side of an anion exchange membrane cut by 70 mm x 70 mm (Tokuyama: AHA), as shown in FIG. (Katsuta Greating Co., Ltd., wire diameter: 0.1 mm, thickness: 200 μm) Further, a catalyst carrier on which three layers of catalyst carriers and two layers of nickel mesh are alternately laminated, and an anode is formed. Produced. The cathode prepared in Step 2 was placed at the center of the other side of the anion exchange membrane, that is, the side opposite to the anode. Thus, an anode membrane electrode assembly was produced.
実施例２
工程１
実施例１の工程１と同じ操作を行った。
Example 2
Process 1
The same operation as in Step 1 of Example 1 was performed.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
２層の触媒担持体と１層のニッケルメッシュを交互に積層し、アノードを作製した点以外、実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in Step 3 of Example 1 was performed, except that two layers of catalyst support and one layer of nickel mesh were alternately laminated to produce an anode.
実施例３
工程１
実施例１の工程１と同じ操作を行った。
Example 3
Process 1
The same operation as in Step 1 of Example 1 was performed.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
４層の触媒担持体と３層のニッケルメッシュを交互に積層し、アノードを作製した点以外、実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in Step 3 of Example 1 was performed, except that a four-layer catalyst carrier and a three-layer nickel mesh were alternately laminated to produce an anode.
実施例４
工程１
硝酸コバルト水溶液の代わりにＮｉ（ＮＯ３）２・６Ｈ２Ｏを０．６ｇ含む水溶液１００ｍｌを用い、水素還元により、７ｍｇＮｉ／ｃｍ２の触媒担持カーボンペーパーを調製した。
Example 4
Process 1
A catalyst-supported carbon paper of 7 mg Ni / cm 2 was prepared by hydrogen reduction using 100 ml of an aqueous solution containing 0.6 g of Ni (NO 3 ) 2 .6H 2 O instead of the cobalt nitrate aqueous solution.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in Step 3 of Example 1 was performed.
実施例５
工程１
硝酸コバルト水溶液の代わりに硝酸コバルトＣｏ（ＮＯ３）２・６Ｈ２Ｏを０．３ｇと硝酸ニッケルＮｉ（ＮＯ３）２・６Ｈ２Ｏを０．３ｇ含む水溶液１００ｍｌを用い、水素還元により、７ｍｇＣｏ−Ｎｉ／ｃｍ２の触媒担持カーボンペーパーを調製した。
Example 5
Process 1
Instead of the cobalt nitrate aqueous solution, 100 mg of an aqueous solution containing 0.3 g of cobalt nitrate Co (NO 3 ) 2 .6H 2 O and 0.3 g of nickel nitrate Ni (NO 3 ) 2 .6H 2 O was used. A catalyst-supporting carbon paper of -Ni / cm 2 was prepared.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in Step 3 of Example 1 was performed.
実施例６
工程１
硝酸コバルト水溶液の代わりにＨ２ＰｔＣｌ６・６Ｈ２Ｏを０．３２ｇ含む水溶液１００ｍｌを用い、水素還元により、７ｍｇＰｔ／ｃｍ２の触媒担持カーボンペーパーを調製した。
Example 6
Process 1
A catalyst-supporting carbon paper of 7 mg Pt / cm 2 was prepared by hydrogen reduction using 100 ml of an aqueous solution containing 0.32 g of H 2 PtCl 6 .6H 2 O instead of the cobalt nitrate aqueous solution.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in Step 3 of Example 1 was performed.
実施例７
工程１
硝酸コバルト水溶液の代わりにＨ２ＰｔＣｌ６・６Ｈ２Ｏを０．１６ｇとＳｎＣｌ２・２Ｈ２Ｏを０．１２ｇ含む水溶液１００ｍｌを用い、水素還元により、７ｍｇＰｔ−Ｓｎ／ｃｍ２の触媒担持カーボンペーパーを調製した。
Example 7
Process 1
7 mg Pt—Sn / cm 2 of catalyst-supported carbon paper was obtained by hydrogen reduction using 100 ml of an aqueous solution containing 0.16 g of H 2 PtCl 6 .6H 2 O and 0.12 g of SnCl 2 .2H 2 O instead of cobalt nitrate aqueous solution. Was prepared.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in Step 3 of Example 1 was performed.
実施例８
工程１
硝酸コバルト水溶液の代わりにＰｂ（ＮＯ３）２を０．２ｇ含む水溶液１００ｍｌを用い、水素還元により、７ｍｇＰｂ／ｃｍ２の触媒担持カーボンペーパーを調製した。
Example 8
Process 1
Using an aqueous solution 100ml containing Pb (NO 3) 2 0.2g instead of cobalt nitrate aqueous solution, the hydrogen reduction, to prepare a catalyst-carrying carbon paper 7mgPb / cm 2.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in Step 3 of Example 1 was performed.
実施例９
工程１
カーボンペーパーの代わりにカーボンクロス（Ｅ−ＴＥＫ社製、型番：Ｂ１、厚み：０．３５ｍｍ）を用いた点以外、実施例１の工程１と同じ操作を行った。
Example 9
Process 1
The same operation as in Step 1 of Example 1 was performed except that carbon cloth (manufactured by E-TEK, model number: B1, thickness: 0.35 mm) was used instead of carbon paper.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in Step 3 of Example 1 was performed.
実施例１０
工程１
カーボンペーパーの代わりにニッケル繊維（日本精線社製、厚み：０．３５ｍｍ）を用いた点以外、実施例１の工程１と同じ操作を行った。
Example 10
Process 1
The same operation as in Step 1 of Example 1 was performed except that nickel fiber (manufactured by Nippon Seisen Co., Ltd., thickness: 0.35 mm) was used instead of carbon paper.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in Step 3 of Example 1 was performed.
実施例１１
工程１
カーボンペーパーの代わりにニッケル多孔体（エース工業社製、型番：ＮＦ、厚み：０．３５ｍｍ）を用いた点以外、実施例１の工程１と同じ操作を行った。
Example 11
Process 1
The same operation as in Step 1 of Example 1 was performed except that a nickel porous body (manufactured by Ace Industry Co., Ltd., model number: NF, thickness: 0.35 mm) was used instead of carbon paper.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in Step 3 of Example 1 was performed.
実施例１２
工程１
カーボンペーパーの代わりにニッケルメッシュ（桂田グレイチング社製、厚み：０．３５ｍｍ）を用いた点以外、実施例１の工程１と同じ操作を行った。
Example 12
Process 1
The same operation as in Step 1 of Example 1 was performed except that nickel mesh (manufactured by Katsuta Grating Inc., thickness: 0.35 mm) was used instead of carbon paper.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in Step 3 of Example 1 was performed.
実施例１３
工程１
カーボンペーパーの代わりに銀メッシュ（桂田グレイチング社製、厚み：０．３５ｍｍ）を用いた点以外、実施例１の工程１と同じ操作を行った。
Example 13
Process 1
The same operation as in Step 1 of Example 1 was performed except that a silver mesh (manufactured by Katsuta Grating Inc., thickness: 0.35 mm) was used instead of carbon paper.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in Step 3 of Example 1 was performed.
実施例１４
工程１
実施例１の工程１と同じ操作を行った。
Example 14
Process 1
The same operation as in Step 1 of Example 1 was performed.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
ニッケルメッシュとして、線径：０．２５ｍｍ、厚み：３５０μｍのものを用いた点以外、実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in step 3 of Example 1 was performed except that a nickel mesh having a wire diameter of 0.25 mm and a thickness of 350 μm was used.
実施例１５
工程１
実施例１の工程１と同じ操作を行った。
Example 15
Process 1
The same operation as in Step 1 of Example 1 was performed.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
ニッケルメッシュとして、線径：０．２５ｍｍ、厚み：５００μｍのものを用いた点以外、実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in step 3 of Example 1 was performed except that a nickel mesh having a wire diameter of 0.25 mm and a thickness of 500 μm was used.
実施例１６
工程１
実施例１の工程１と同じ操作を行った。
Example 16
Process 1
The same operation as in Step 1 of Example 1 was performed.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
ニッケルメッシュとして、線径：０．５ｍｍ、厚み：１０００μｍのものを用いた点以外、実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in step 3 of Example 1 was performed except that a nickel mesh having a wire diameter of 0.5 mm and a thickness of 1000 μm was used.
実施例１７
工程１
実施例１の工程１と同じ操作を行った。
Example 17
Process 1
The same operation as in Step 1 of Example 1 was performed.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
ニッケルメッシュとして、線径：０．１ｍｍ、厚み：１５０μｍのものを用いた点以外、実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in step 3 of Example 1 was performed except that a nickel mesh having a wire diameter of 0.1 mm and a thickness of 150 μm was used.
実施例１８
工程１
実施例１の工程１と同じ操作を行った。
Example 18
Process 1
The same operation as in Step 1 of Example 1 was performed.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
ニッケルメッシュとして、線径：０．１ｍｍ、厚み：１００μｍのものを用いた点以外、実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in Step 3 of Example 1 was performed except that a nickel mesh having a wire diameter of 0.1 mm and a thickness of 100 μm was used.
比較例１
工程１
実施例１の工程１と同じ操作を行った。
Comparative Example 1
Process 1
The same operation as in Step 1 of Example 1 was performed.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
７０ｍｍ×７０ｍｍに切断したアニオン交換膜（トクヤマ社製：ＡＨＡ）の片面の中央部に、図２に示すように、工程１で調製した触媒担持体を設置し、アノードを作製した。アニオン交換膜の他方の面、すなわちアノードの反対側の面にてその中央に工程２で調製したカソードを設置した。こうして、アノード膜電極接合体を作製した。
Process 3
As shown in FIG. 2, the catalyst carrier prepared in Step 1 was installed at the center of one side of an anion exchange membrane (manufactured by Tokuyama: AHA) cut to 70 mm × 70 mm to produce an anode. The cathode prepared in Step 2 was placed at the center of the other side of the anion exchange membrane, that is, the side opposite to the anode. Thus, an anode membrane electrode assembly was produced.
比較例２
工程１
実施例１の工程１と同じ操作を行った。
Comparative Example 2
Process 1
The same operation as in Step 1 of Example 1 was performed.
工程２
実施例１の工程２と同じ操作を行った。
Process 2
The same operation as in Step 2 of Example 1 was performed.
工程３
ニッケルメッシュとして、線径：０．５ｍｍ、厚み：１３００μｍのものを用いた点以外、実施例１の工程３と同じ操作を行った。
Process 3
The same operation as in Step 3 of Example 1 was performed except that a nickel mesh having a wire diameter of 0.5 mm and a thickness of 1300 μm was used.
性能評価試験
実施例および比較例で得られたアノード膜電極接合体を用いて構成したアルカリ型燃料電池について、下記の条件で最大出力を測定した。その結果を表１に示す。
Performance Evaluation Test For the alkaline fuel cell configured using the anode membrane electrode assemblies obtained in Examples and Comparative Examples, the maximum output was measured under the following conditions. The results are shown in Table 1.
燃料：２ＮのＮａＨ２Ｐ０３＋１ＮのＫＯＨ
カソードガス：空気（１３０ｍｌ／ｍｉｎ）
圧力：常圧
測定温度：５０℃
湿度：１００％
Cathode gas: Air (130ml / min)
Pressure: Normal pressure Measurement temperature: 50 ° C
Humidity: 100%
表１中、ＣＰはカーボンペーパー、ＣＣはカーボンクロス、ＮＦはニッケル繊維、ＮＰニッケル多孔体、ＮＭはニッケルメッシュ、ＳＭは銀メッシュをそれぞれ意味する。 In Table 1, CP means carbon paper, CC means carbon cloth, NF means nickel fiber, NP nickel porous body, NM means nickel mesh, and SM means silver mesh.
表１から明らかなように、実施例のアノード膜電極接合体を用いたアルカリ型燃料電池は、比較例のアノード膜電極接合体を用いたものに比べ、格段に高い最大出力を得ることができた。 As is apparent from Table 1, the alkaline fuel cell using the anode membrane electrode assembly of the example can obtain a remarkably high maximum output as compared with the one using the anode membrane electrode assembly of the comparative example. It was.
Claims (5)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009087742A (en) * | 2007-09-28 | 2009-04-23 | Dainippon Printing Co Ltd | Cell for solid alkaline fuel battery |
| WO2012032999A1 (en) * | 2010-09-08 | 2012-03-15 | シャープ株式会社 | Membrane electrode assembly and alkaline fuel cell |
| WO2012127999A1 (en) * | 2011-03-22 | 2012-09-27 | シャープ株式会社 | Control device and fuel-cell system |
| JP2013507741A (en) * | 2009-10-08 | 2013-03-04 | フルイディック，インク． | Electrochemical battery with flow management system |
| JP5562968B2 (en) * | 2009-09-24 | 2014-07-30 | 株式会社東芝 | Current collecting member, power generation device, and method of manufacturing current collecting member for power generation device |
| JP2014192098A (en) * | 2013-03-28 | 2014-10-06 | Hitachi Zosen Corp | Anode electrode catalyst for alkaline fuel cell |
| CN113066995A (en) * | 2021-03-23 | 2021-07-02 | 中国科学院化学研究所 | PEM fuel cell, high-toughness porous carbon paper and preparation method thereof |
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| JPH08321315A (en) * | 1995-05-25 | 1996-12-03 | Mitsubishi Electric Corp | Fuel cell |
| WO2007045763A1 (en) * | 2005-10-19 | 2007-04-26 | Commissariat A L'energie Atomique | Electrode for alkali fuel cell and method for making a fuel cell including at least one step of making such an electrode |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08321315A (en) * | 1995-05-25 | 1996-12-03 | Mitsubishi Electric Corp | Fuel cell |
| WO2007045763A1 (en) * | 2005-10-19 | 2007-04-26 | Commissariat A L'energie Atomique | Electrode for alkali fuel cell and method for making a fuel cell including at least one step of making such an electrode |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009087742A (en) * | 2007-09-28 | 2009-04-23 | Dainippon Printing Co Ltd | Cell for solid alkaline fuel battery |
| JP5562968B2 (en) * | 2009-09-24 | 2014-07-30 | 株式会社東芝 | Current collecting member, power generation device, and method of manufacturing current collecting member for power generation device |
| JP2013507741A (en) * | 2009-10-08 | 2013-03-04 | フルイディック，インク． | Electrochemical battery with flow management system |
| WO2012032999A1 (en) * | 2010-09-08 | 2012-03-15 | シャープ株式会社 | Membrane electrode assembly and alkaline fuel cell |
| WO2012127999A1 (en) * | 2011-03-22 | 2012-09-27 | シャープ株式会社 | Control device and fuel-cell system |
| JP2012199082A (en) * | 2011-03-22 | 2012-10-18 | Sharp Corp | Control device and fuel cell system |
| JP2014192098A (en) * | 2013-03-28 | 2014-10-06 | Hitachi Zosen Corp | Anode electrode catalyst for alkaline fuel cell |
| CN113066995A (en) * | 2021-03-23 | 2021-07-02 | 中国科学院化学研究所 | PEM fuel cell, high-toughness porous carbon paper and preparation method thereof |
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