JPS61177386A - Partition plate for double pole - Google Patents
Partition plate for double poleInfo
- Publication number
- JPS61177386A JPS61177386A JP60018077A JP1807785A JPS61177386A JP S61177386 A JPS61177386 A JP S61177386A JP 60018077 A JP60018077 A JP 60018077A JP 1807785 A JP1807785 A JP 1807785A JP S61177386 A JPS61177386 A JP S61177386A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- partition plate
- carbon
- aggregate
- double pole
- 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.)
- Pending
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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Fuel Cell (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、電極仕切板に関し、さらに詳しくは導電性物
質として炭素成形体を用いた、電解槽または電池用の電
極仕切板に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an electrode partition plate, and more particularly to an electrode partition plate for an electrolytic cell or battery using a carbon molded body as a conductive material.
（従来の技術）
従来、この種の炭素成形体を用いた電極仕切板は、耐食
性に優れていることから、例えばリン酸型燃料電池等の
高い腐食性を有する電解液を使用する電池に用いられて
いる。これらの炭素成形体としては、化学的安定性、強
度、加工性等を考慮して、ガラス状炭素板、樹脂結着炭
素板および樹脂結着炭素繊維布等があげられる。(Prior art) Conventionally, electrode partition plates using this type of carbon molded body have excellent corrosion resistance, so they have been used in batteries that use a highly corrosive electrolyte, such as phosphoric acid fuel cells. It is being Examples of these carbon molded bodies include glassy carbon plates, resin-bonded carbon plates, and resin-bonded carbon fiber cloths, taking into consideration chemical stability, strength, workability, and the like.
（発明が解決しようとする問題点）
しかしながら、これらの内、ガラス状炭素板は衝撃に弱
いため、現状では１ｄ以上の形とすることは困難であり
、また非常に高価である。また樹脂結着炭素粉仕切板は
極めて安価であるが、充分な電導性を持たせるために炭
素粉の混合割合をあげると、機械的強度が低下する欠点
がある。さらに樹脂結着炭素繊維布仕切板は、柔軟性に
富むとともに機械的諸性質にも優れているが、炭素繊維
布の繊り方によっては電極との接触抵抗の大きい部分が
生じるなど、高い電導性に改善の余地がある。(Problems to be Solved by the Invention) However, among these, glassy carbon plates are weak against impact, so it is currently difficult to make them into a shape of 1 d or more, and they are also very expensive. Although resin-bound carbon powder partition plates are extremely inexpensive, they have the disadvantage that mechanical strength decreases when the mixing ratio of carbon powder is increased in order to provide sufficient electrical conductivity. Furthermore, resin-bonded carbon fiber cloth partition plates are highly flexible and have excellent mechanical properties, but depending on the way the carbon fiber cloth is woven, there may be areas with high contact resistance with electrodes, resulting in high conductivity. There is room for improvement in gender.
本発明の目的は、炭素繊維布仕切板全面にわたり高い電
導性を持って動作するとともに、化学的耐久性、機械的
緒特性に優、れた電極仕切板を提供することにある。An object of the present invention is to provide an electrode partition plate that operates with high conductivity over the entire surface of the carbon fiber cloth partition plate and has excellent chemical durability and mechanical properties.
（問題点を解決するための手段）
本発明は、炭素繊維集合体に樹脂を含浸させ、平板状に
成形してなる電極仕切板において、該樹脂中に２０重量
％以上の炭素粉を含有させたことを特徴とするものであ
る。(Means for Solving the Problems) The present invention provides an electrode partition plate formed by impregnating a carbon fiber aggregate with a resin and forming it into a flat plate, in which the resin contains 20% by weight or more of carbon powder. It is characterized by:
本発明に用いる炭素繊維集合体は、炭素繊維から形成し
た布、不織布、多孔質体等を含む。これらの炭素繊維集
合体は、樹脂中に含浸（混合）され、平板状に成形して
使用される。このような板状の炭素繊維集合体に含浸さ
せる樹脂としては、一般に電極仕切板に用いられる化学
的、機械的強度を有する樹脂であれば、特に限定される
ず、例えばフェノール樹脂、エポキシ樹脂、硬質ポリ塩
化ビニル樹脂、高密度ポリエチレン樹脂、ポリプロピレ
ン樹脂等をあげることができる。また該樹脂に含有させ
る炭素粉の割合は、２０重量％以上、好ましくは２０〜
６０重量％である。本発明に用いる炭素繊維集合体およ
び炭素粉中の炭素は、少なくとも炉内で１８００℃以上
で処理し、グラファイト化したものが電気型導度の点か
ら好ましい。The carbon fiber aggregate used in the present invention includes cloth, nonwoven fabric, porous material, etc. formed from carbon fibers. These carbon fiber aggregates are impregnated (mixed) in a resin, molded into a flat plate, and used. The resin to be impregnated into such a plate-shaped carbon fiber aggregate is not particularly limited as long as it has chemical and mechanical strength and is commonly used for electrode partition plates, such as phenol resin, epoxy resin, Examples include hard polyvinyl chloride resin, high-density polyethylene resin, and polypropylene resin. Further, the proportion of carbon powder contained in the resin is 20% by weight or more, preferably 20 to 20% by weight.
It is 60% by weight. The carbon in the carbon fiber aggregate and carbon powder used in the present invention is preferably treated at least at 1800° C. or higher in a furnace to form graphite from the viewpoint of electrical conductivity.
該炭素繊維集合体（例えば炭素布）は引張強度等の点か
ら高強度カーボン繊維を用いることが望ましいが、用途
によっては必ずしも高強度を有する必要はない。炭素繊
維集合体に樹脂を含浸させる際の樹脂中の炭素粉の割合
が２０重量％を越えない場合は、電気型導度等が従来と
比べて余りかわらず、本発明の目的を達成することがで
きない。Although it is desirable to use high-strength carbon fibers for the carbon fiber aggregate (for example, carbon cloth) from the viewpoint of tensile strength, etc., it is not necessarily necessary to have high strength depending on the use. If the proportion of carbon powder in the resin when impregnating the carbon fiber aggregate with resin does not exceed 20% by weight, the electrical conductivity, etc. will not change much compared to the conventional one, and the object of the present invention will be achieved. I can't.
また炭素粉の割合が余り多すぎると樹脂の機械的強度が
低下する傾向にある。Furthermore, if the proportion of carbon powder is too large, the mechanical strength of the resin tends to decrease.
以下、本発明の実施例によりさらに詳細に説明する。Hereinafter, the present invention will be explained in more detail using examples.
（実施例）
第１図に示す構造の単電解槽を製作し、プレート（電極
仕切板）ｌａ、１ｂとして各種試作したもの（第１表）
を用い、通電実験を行った。第１図の単電解槽は、スペ
サー２の両側に設けられたプレートｌａおよびｌｂ、集
電板３ａおよび３ｂ。(Example) A single electrolytic cell with the structure shown in Fig. 1 was manufactured, and various prototypes were made as plates (electrode partition plates) la and 1b (Table 1)
We conducted an energization experiment using the . The single electrolytic cell shown in FIG. 1 includes plates la and lb provided on both sides of a spacer 2, and current collector plates 3a and 3b.
ならびに押え板４ａおよび４ｂからなり、電解液は押え
板４ｂの一隅に設けられた流入孔６ｂから入り、集電板
３ｂ、プレート１ｂおよびスペーサ２を通り、スペーサ
２の他端から再びプレート１ｂ、集電板３ｂおよび押え
板４ｂの他端に設けられた流出孔６ａから処理液となっ
て排出される。The electrolyte enters from an inflow hole 6b provided at one corner of the holding plate 4b, passes through the current collecting plate 3b, the plate 1b and the spacer 2, and returns from the other end of the spacer 2 to the plate 1b, The processing liquid is discharged from the outflow holes 6a provided at the other ends of the current collecting plate 3b and the holding plate 4b.
第 １ 表
上記単電解槽には、４規定塩酸酸性１モル／ｌ塩化第二
鉄、１モル／ｌ塩化第一鉄水溶液を循環送液させた。電
流密度はＩＱｍＡ／−とした。この時集電板３ａおよび
３ｂにかかる電圧から電解槽抵抗を求めた。結果を第２
表に示す。Table 1 Aqueous solutions of 1 mol/l ferric chloride and 1 mol/l ferrous chloride acidified with 4N hydrochloric acid were circulated through the single electrolytic cell. The current density was IQmA/-. At this time, the electrolytic cell resistance was determined from the voltage applied to the current collector plates 3a and 3b. Second result
Shown in the table.
以下余白
第２表
第２表の結果から、プレー）Ｎｏ、１の白金コーティン
グプレートは導電性および電極触媒性に優れているため
、最小の抵抗値を示したが、本電解液による煮沸処理に
より白金が溶出し、耐久性に劣ることが分かった。これ
に対して炭素布に含浸せせる樹脂に炭素粉を一定以上混
入した本発明のプレートは電解液による煮沸処理にも安
定であり、導電性にも優れていることが分かった。From the results in Table 2 in the margin below, platinum coating plate No. 1 showed the lowest resistance value due to its excellent conductivity and electrode catalytic properties, but when boiling with this electrolyte It was found that platinum was eluted and the durability was poor. On the other hand, it has been found that the plate of the present invention, in which a certain amount of carbon powder is mixed into the resin used to impregnate the carbon cloth, is stable even when boiling with an electrolytic solution and has excellent conductivity.
（発明の効果）
本発明による電極仕切板は、次のような優れた効果を有
する。(Effects of the Invention) The electrode partition plate according to the present invention has the following excellent effects.
（１）化学耐久性に優れている。すなわち塩酸酸性臭素
水および塩酸酸性塩化第二鉄水溶液等の煮沸中において
も軟化、膨潤等を生ずることなく、また１５０℃リン酸
中においても安定であり、充分な耐久性を有する。(1) Excellent chemical durability. That is, it does not soften or swell even during boiling of hydrochloric acid acidic bromine water, hydrochloric acid acidic ferric chloride aqueous solution, etc., and is stable even in phosphoric acid at 150°C, and has sufficient durability.
（２）電気型導度が良好である。電極仕切板両面間の電
気抵抗を例えば０．０２Ω（至）以下に抑えることがで
きる。(2) Good electrical conductivity. The electrical resistance between both surfaces of the electrode partition plate can be suppressed to, for example, 0.02Ω (minimum) or less.
（３）機械的性質に優れている。すなわち引張強さ３は
、例えばＪＱＱｋｇ／Ｃｆｌ！以上、衝撃強さくアイシ
ソトノ・／チ）は’ｌ、 ５ ｋｇ −ｃｍ ／ ｃｍ
以上であり、充分な柔軟性を有する。柔軟性については
例えば長さ３Ｑｃｍの短冊状に成型した電極仕切板の一
端を平面に固定し、他端を持ち上げると平面状から５ｃ
ｍまで持ち上げることができる。(3) Excellent mechanical properties. That is, the tensile strength 3 is, for example, JQQkg/Cfl! Above, the impact strength is 5 kg-cm/cm.
This is the above, and it has sufficient flexibility. Regarding flexibility, for example, if one end of an electrode partition plate formed into a rectangular shape with a length of 3Qcm is fixed on a flat surface and the other end is lifted, it will change from a flat shape to 5cm.
It can be lifted up to m.
（４）低温領域の動作性に優れている。すなわち常温か
ら１００〜２００℃程度で動作する電解槽または電池に
用いる電極仕切板として適している。(4) Excellent operability in low temperature range. That is, it is suitable as an electrode partition plate for use in electrolytic cells or batteries that operate at temperatures ranging from room temperature to about 100 to 200°C.
また製作工程が簡単であり、価格的にも貴金属を用いな
いので経済的に製造することができる。Furthermore, the manufacturing process is simple, and since no precious metals are used, it can be manufactured economically.
第１図は、本発明の一実施例を説明するための単電解槽
の展開図である。
１ａ、１ｂ・・・電極仕切板（プレート）、２・・・ス
ペーサ、３ａ、３ｂ・・・集電板、５・・・電解液流出
孔、６ａ・・・電解液流出孔、６ｂ・・・電解液流入孔
。FIG. 1 is a developed view of a single electrolytic cell for explaining one embodiment of the present invention. 1a, 1b... Electrode partition plate (plate), 2... Spacer, 3a, 3b... Current collector plate, 5... Electrolyte outflow hole, 6a... Electrolyte outflow hole, 6b...・Electrolyte inflow hole.
Claims (2)
してなる電極仕切板において、該樹脂中に２０重量％以
上の炭素粉を含有させたことを特徴とする電極仕切板。(1) An electrode partition plate formed by impregnating a carbon fiber aggregate with a resin and molding it into a flat plate, characterized in that the resin contains 20% by weight or more of carbon powder.
〜６０重量％の炭素粉を含有させたことを特徴とする電
極仕切板。(2) In claim 1, the resin contains 20%
An electrode partition plate containing ~60% by weight of carbon powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60018077A JPS61177386A (en) | 1985-02-01 | 1985-02-01 | Partition plate for double pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60018077A JPS61177386A (en) | 1985-02-01 | 1985-02-01 | Partition plate for double pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61177386A true JPS61177386A (en) | 1986-08-09 |
Family
ID=11961586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60018077A Pending JPS61177386A (en) | 1985-02-01 | 1985-02-01 | Partition plate for double pole |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61177386A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001514794A (en) * | 1997-03-12 | 2001-09-11 | ネーデルランセ オルハニサチエ フォール トゥーヘパスト−ナツールウェーテンシャッペルック オンデルズク テーエヌオー | Manufacturing method of bipolar plate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5497581A (en) * | 1978-01-03 | 1979-08-01 | Gen Electric | Electricity collector and fluid distribution separator board for chloride electrolytic cell using ion transfer hindrance membrane |
| JPS55115980A (en) * | 1979-01-02 | 1980-09-06 | Gen Electric | Current collecting separator |
-
1985
- 1985-02-01 JP JP60018077A patent/JPS61177386A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5497581A (en) * | 1978-01-03 | 1979-08-01 | Gen Electric | Electricity collector and fluid distribution separator board for chloride electrolytic cell using ion transfer hindrance membrane |
| JPS55115980A (en) * | 1979-01-02 | 1980-09-06 | Gen Electric | Current collecting separator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001514794A (en) * | 1997-03-12 | 2001-09-11 | ネーデルランセ オルハニサチエ フォール トゥーヘパスト−ナツールウェーテンシャッペルック オンデルズク テーエヌオー | Manufacturing method of bipolar plate |
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