JP2820492B2 - Carbon plate and method for producing the same - Google Patents
Carbon plate and method for producing the sameInfo
- Publication number
- JP2820492B2 JP2820492B2 JP2086947A JP8694790A JP2820492B2 JP 2820492 B2 JP2820492 B2 JP 2820492B2 JP 2086947 A JP2086947 A JP 2086947A JP 8694790 A JP8694790 A JP 8694790A JP 2820492 B2 JP2820492 B2 JP 2820492B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon plate
- sheet
- carbon
- plate
- thermosetting resin
- 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 - Lifetime
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 49
- 229910052799 carbon Inorganic materials 0.000 title claims description 47
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 229920005989 resin Polymers 0.000 claims description 24
- 239000011347 resin Substances 0.000 claims description 24
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 19
- 239000004917 carbon fiber Substances 0.000 claims description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 18
- 229920001187 thermosetting polymer Polymers 0.000 claims description 14
- 239000002243 precursor Substances 0.000 claims description 9
- 238000010304 firing Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims 1
- 239000000446 fuel Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 8
- 239000000835 fiber Substances 0.000 description 8
- 238000005470 impregnation Methods 0.000 description 7
- 239000011148 porous material Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000003475 lamination Methods 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229920003043 Cellulose fiber Polymers 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 229920002239 polyacrylonitrile Polymers 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920005822 acrylic binder Polymers 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 229910021397 glassy carbon Inorganic materials 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
- H01M4/96—Carbon-based electrodes
-
- 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)
- Ceramic Products (AREA)
- Carbon And Carbon Compounds (AREA)
- Inert Electrodes (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は燃料電池の電極等に使用される炭素板及びそ
の製造法に関する。Description: TECHNICAL FIELD The present invention relates to a carbon plate used for an electrode or the like of a fuel cell and a method for producing the same.
燃料電池の多孔質炭素電極板は炭素繊維シートあるい
はその前駆体繊維シート、紙等のセルローズ繊維シート
等に熱硬化性樹脂液を含浸し、硬化、焼成することによ
って製造されることが多い。A porous carbon electrode plate of a fuel cell is often manufactured by impregnating a carbon fiber sheet or a precursor fiber sheet thereof, a cellulosic fiber sheet such as paper, etc. with a thermosetting resin liquid, curing and firing.
上記シートは、一般的に生産性のい抄紙方法により得
られるが、多孔質炭素板用シートは面内が均一で且つ嵩
高な必要があるため、抄紙工程で様々な工夫がなされて
いる（特開昭62−12681、同60−122711、特開平１−298
91）。The above sheet is generally obtained by a papermaking method having low productivity. However, since the sheet for a porous carbon plate needs to have a uniform in-plane and bulky surface, various ideas have been devised in the papermaking process. 62-12681, 60-122711, JP-A-1-298
91).
燃料電池用多孔質電極炭素板は面に垂直方向のガス透
過性が高いことが望まれる。しかし大きな気孔を有する
炭素板は電極としての性能が悪く、また強度的にも問題
が生ずる。望ましい電極としての炭素板は微細な気孔が
多数、面に垂直方向に分布していることである。It is desired that the porous carbon plate for a fuel cell has high gas permeability in the direction perpendicular to the surface. However, a carbon plate having large pores has poor performance as an electrode and has a problem in strength. A carbon plate as a desirable electrode has many fine pores distributed in a direction perpendicular to the surface.
例えばリン酸型燃料電池は濃厚なリン酸液を電解質に
使用し、水素及び酸素を燃料とし、多孔質電極炭素板上
で白金触媒を使用した化学反応を利用し、反応に伴なう
エネルギーを電気として取出している。この際燃料であ
る水素および酸素が多孔質電極炭素板上を拡散して白金
触媒上で効率よく反応するには、この炭素板の面に垂直
方向のガス透過性が優れている必要がある。For example, a phosphoric acid fuel cell uses a concentrated phosphoric acid solution as an electrolyte, uses hydrogen and oxygen as fuel, and uses a chemical reaction using a platinum catalyst on a porous electrode carbon plate to reduce the energy involved in the reaction. We take it out as electricity. At this time, in order for hydrogen and oxygen as fuels to diffuse on the porous electrode carbon plate and react efficiently on the platinum catalyst, gas permeability in a direction perpendicular to the surface of the carbon plate needs to be excellent.
前記した従来法では抄紙を種々工夫しているが、上記
の要求を満足するものは得られていない。Various papermaking methods have been devised in the above-mentioned conventional method, but none satisfying the above requirements has been obtained.
本発明の目的は炭素板の面に垂直方向のガス透過性が
よく、かつ電極板として薄くても十分な強度があり、さ
らに製造も容易な炭素板を提供することにある。An object of the present invention is to provide a carbon plate that has good gas permeability in the direction perpendicular to the surface of the carbon plate, has sufficient strength even if it is thin as an electrode plate, and is easy to manufacture.
焼成炭素板は脆くかつ硬いので、これに微細な孔を多
数、加工によって設けることは不可能である。また、電
極としての炭素板はかなり薄いのでポーラスなものは強
度的にも問題が生ずる。Since the fired carbon plate is brittle and hard, it is impossible to form many fine holes in the fired carbon plate by processing. Further, since the carbon plate as an electrode is quite thin, a porous one causes a problem in strength.
本発明者は炭素板に炭素繊維を含有させることによっ
て補強すると共に、熱硬化性樹脂の硬化体は容易に微細
な孔あけができ、かつこれを焼成しても、大部分の孔は
残ることを見出し、本発明に至ったものである。The inventor of the present invention reinforces the carbon plate by incorporating carbon fibers, and the cured body of the thermosetting resin can easily form fine holes, and even if this is fired, most of the holes remain. And have led to the present invention.
即ち、本発明は炭素繊維と熱硬化性樹脂の炭化物から
なる炭素板で、この炭素板の面に垂直方向に多数の微細
孔を有する炭素板である。That is, the present invention is a carbon plate made of a carbon fiber and a carbide of a thermosetting resin, and has a large number of fine holes in a direction perpendicular to the surface of the carbon plate.
この炭素板の製造法は炭素繊維又はその前駆体のシー
トに熱硬化性樹脂液を含浸し、これを硬化後その面に垂
直方向に多数の微細孔を穿ち、焼成する方法、又は前記
含浸シートを、積層圧着，硬化，穿孔，焼成、硬
化，積層圧着，穿孔，焼成、硬化，穿孔，積層圧着，
焼成、の各手順で行なう方法である。The method for producing the carbon plate is a method of impregnating a sheet of carbon fiber or a precursor thereof with a thermosetting resin liquid, curing the liquid, perforating a large number of fine holes in a direction perpendicular to the surface thereof, and firing the impregnated sheet. , Lamination pressing, curing, punching, firing, curing, lamination pressing, punching, firing, curing, punching, lamination pressing,
Firing method.
以下本発明を詳しく説明する。 Hereinafter, the present invention will be described in detail.
本発明の炭素板は炭素繊維と熱硬化性樹脂の炭化物か
らなる、即ち炭化物中に炭素繊維が分散し、炭化物で一
体に結合されている。The carbon plate of the present invention is made of a carbon fiber and a carbide of a thermosetting resin, that is, the carbon fiber is dispersed in the carbide and is integrally bonded by the carbide.
この炭素繊維はPAN系、ピッチ系等からつくられた既
に炭素繊維となっているものが用いられる外、その前駆
体として紙等のセルロース繊維、あるいはPAN系等の有
機繊維を不融化等の処理をし、樹脂が炭化されるとき同
時に炭素繊維化したものでもよい。なお、不融化処理は
樹脂含浸後でも可能である。This carbon fiber is not limited to carbon fiber already made from PAN-based or pitch-based, etc., and is treated as a precursor to infusibilize cellulose fibers such as paper or organic fibers such as PAN-based fibers. The resin may be carbonized at the same time as the resin is carbonized. The infusibilization treatment is possible even after resin impregnation.
熱硬化性樹脂はフェノール樹脂、フラン樹脂等が用い
られ、これらの炭化物はいわゆるガラス状カーボンと伝
われるものである。As the thermosetting resin, a phenol resin, a furan resin, or the like is used, and these carbides are transmitted as so-called glassy carbon.
炭素板における炭素繊維の含有量は炭素板の強度、気
孔率等に関係する。さらに気孔率は焼成条件、例えば昇
温速度、加圧の有無等によって影響を受ける。これらの
条件によって炭素繊維の含有量の望ましい値も変ってく
るが、一般的には50〜90重量％が適する。The carbon fiber content in the carbon plate is related to the strength, porosity, etc. of the carbon plate. Further, the porosity is affected by the firing conditions, for example, the rate of temperature rise, the presence or absence of pressure, and the like. Desirable values of the carbon fiber content also vary depending on these conditions, but generally 50 to 90% by weight is suitable.
炭素板はその面に垂直方向に多数の微細孔を有する。
気孔はこの外にも、熱硬化性樹脂が炭化する際あるいは
セルロース繊維等を用いたときはその炭化の際にも生ず
る。The carbon plate has a large number of micropores in the direction perpendicular to its surface.
Pores are also generated when the thermosetting resin is carbonized, or when carbonized cellulose fiber or the like is used.
微細孔は炭素板を貫通している場合もあれば、後述す
る製法で述べるように積層炭素板では各々の炭素板に穿
孔後積層する場合もあるので炭素板全体を通しては貫通
孔にはならないものも含まれる。炭素板はこの微細孔以
外に気孔をもっているので全体の貫通孔でなくても他の
気孔を通して連通することが多く、本発明の効果は損わ
れない。The micropores may not penetrate through the entire carbon plate because they may penetrate the carbon plate, or may be laminated after perforating each carbon plate in the laminated carbon plate as described in the manufacturing method described later. Is also included. Since the carbon plate has pores other than the fine holes, the carbon plate often communicates with other pores even if it is not the entire through-hole, and the effect of the present invention is not impaired.
微細孔の孔径は小さいものが多数存在することが望ま
しいが、あまり小さい孔径は製法状の制限がある。実用
上孔径1.0mm以下、孔の間隔10mm以下の範囲が適当であ
る。It is desirable that a large number of micropores have a small diameter, but a too small diameter has a limitation in a manufacturing method. In practice, a range of 1.0 mm or less in hole diameter and 10 mm or less between holes is appropriate.
本発明の炭素板のその他の特性値で一般的な範囲を挙
げれは微細孔を含む気孔率は50〜80％、圧縮強度は50〜
250kg/cm2程度である。Other characteristic values of the carbon plate of the present invention include general ranges, including porosity including micropores of 50 to 80%, and compressive strength of 50 to 80%.
It is about 250 kg / cm 2 .
炭素板の厚さは燃料電池の電極では通常0.4〜2.0mm程
度である。The thickness of the carbon plate is usually about 0.4 to 2.0 mm for a fuel cell electrode.
次に製造法の発明について説明する。 Next, the invention of the manufacturing method will be described.
先ず炭素繊維又はその前駆体繊維（前述）をシートに
する。それには例えば繊維と抄紙用バインダーから抄紙
法によって得ることができる。セルロース繊維の場合は
紙がそのまま使用できる。First, carbon fiber or its precursor fiber (described above) is made into a sheet. For example, it can be obtained from a fiber and a papermaking binder by a papermaking method. In the case of cellulose fibers, paper can be used as it is.
このシートに熱硬化性樹脂液を含浸する。含浸はシー
トを樹脂液中に浸漬する等の方法で行なう。樹脂の含浸
量は樹脂液の固形分濃度、樹脂液にシートを浸漬、引上
げ後の圧着の程度等によって調製することができる。前
記した炭素板中の炭素繊維の含有料を50〜90重量％とす
るには炭素繊維43〜82重量％、残りが含浸樹脂（固形
分）、前駆体繊維では50〜90重量％、残りを含浸樹脂と
すればよい。含浸後常法に従って乾燥、硬化する（硬化
したものをプリプレグと称する）。This sheet is impregnated with a thermosetting resin liquid. The impregnation is performed by a method such as immersing the sheet in a resin solution. The amount of resin impregnation can be adjusted by the solid content concentration of the resin solution, the degree of pressure bonding after dipping and pulling the sheet in the resin solution, and the like. In order to make the content of the carbon fiber in the carbon plate 50-90% by weight, the carbon fiber 43-82% by weight, the remainder is impregnated resin (solid content), and the precursor fiber is 50-90% by weight, the remainder is 50-90% by weight. What is necessary is just to make it an impregnation resin. After impregnation, it is dried and cured according to a conventional method (the cured product is called a prepreg).
プリプレグは次にその面の垂直方向に穿孔加工される
が、それには生花用の剣山と同様の装置を用いればよ
い。プリプレグ板は焼成した炭素材と違って容易に穿孔
加工ができる。The prepreg is then perforated in the direction perpendicular to its surface, using a device similar to Kenzan for fresh flowers. The prepreg plate can be easily perforated unlike a fired carbon material.
焼成は例えば黒鉛板にプリプレグ板を挟み、通常の方
法に従って800℃以上の温度で行なう。さらに必要な場
合は黒鉛化を行なうこともできる。The sintering is performed, for example, at a temperature of 800 ° C. or more according to an ordinary method by sandwiching a prepreg plate between graphite plates. If necessary, it can be graphitized.
本発明において炭素繊維等のシートが厚い場合は１枚
のシートでよいが、樹脂含浸を均一化し、性能のよい電
極用炭素板とするには積層構造とすることが好ましい。
積層の仕方については前記〜のいずれでもよい。積
層は硬化前後いずれでもよいが穿孔加工はすべて硬化後
に行なう。In the present invention, when the sheet of carbon fiber or the like is thick, one sheet may be used, but it is preferable to adopt a laminated structure in order to make the resin impregnation uniform and to obtain a carbon plate for an electrode having good performance.
The method of lamination may be any of the above-mentioned. Lamination may be performed before or after curing, but all perforations are performed after curing.
プリプレグの穿孔加工は容易であり、しかも熱硬性樹
脂なので硬化したものは焼成しても微細な孔は変形等は
あっても塞がることがない。微細孔は板に垂直方向に通
っているが、積層板の場合、穿孔後積層すると貫通孔と
はならないが、炭素板にはそれ以外にも気孔があるの
で、全体として板に垂直方向に対する通気性がよくな
り、燃料電池の電極としての性能が向上する。Drilling of the prepreg is easy, and since it is a thermosetting resin, even if the cured product is fired, the fine holes will not be blocked even if they are deformed. The fine holes pass through the plate in the vertical direction, but in the case of a laminated plate, if it is laminated after perforation, it does not become a through hole, but there are other pores in the carbon plate, so ventilation as a whole is perpendicular to the plate. And the performance as an electrode of a fuel cell is improved.
太さ約15μｍ×長さ約3mmの不融化したポリアクリロ
ニトリル繊維（東邦レーヨン製，商品名；ベスロン）70
重量部と抄紙用バインダー（旭化成製，商品名；アクリ
ルバインダーA302）30重量部を丸網抄紙機（東洋精機製
作所製,T・Ｓ・Ｓ式シートマシーン）により100g/m2の
シートとした。Infusibilized polyacrylonitrile fiber of about 15 μm in thickness × about 3 mm in length (manufactured by Toho Rayon, trade name: Veslon) 70
Parts by weight and 30 parts by weight of a papermaking binder (trade name: Acrylic Binder A302, manufactured by Asahi Kasei Corporation) were converted into a 100 g / m 2 sheet by a round mesh paper machine (TSS type sheet machine, manufactured by Toyo Seiki Seisaku-sho, Ltd.).
このシートをエタノールにて濃度40％に希釈したフェ
ノール樹脂溶液に含浸し、100℃で７分間乾燥予備硬化
し含浸量40％のプリプレグとした。This sheet was impregnated with a phenol resin solution diluted to a concentration of 40% with ethanol, and dried and pre-cured at 100 ° C. for 7 minutes to obtain a prepreg having an impregnation amount of 40%.
このプリプレグに生花用剣山を用いて穴径約0.7φm
m、穴間隔約7mmの穴を均一に穴開け加工した後、20枚積
層し、160℃で20分間、約0.5kg/cm2の条件で熱圧着し、
厚さ3mm×200mm角の大きさの積層板とした。The hole diameter of this prepreg is 0.7φm
m, was uniformly boring a hole about hole spacing 7 mm, and laminated 20 sheets, 20 minutes at 160 ° C., and thermocompression bonding at about 0.5 kg / cm 2 condition,
The laminate was a 3 mm x 200 mm square laminate.
また比較として穴開け加工をしないプリプレグを同様
に積層板とした。As a comparison, a prepreg without perforation was similarly used as a laminated plate.
このようにして得られた積層板を黒鉛板に挟持し、常
法より昇温連度15℃/hrで1000℃に処理した後、アチソ
ン炉タイプの黒鉛化炉で再度熱処理し3000℃で３黒鉛化
処理を施し、多孔質炭素板を得た。The laminate thus obtained is sandwiched between graphite plates, treated at a temperature rising rate of 15 ° C./hr to 1000 ° C. by a conventional method, then heat-treated again in an Acheson furnace type graphitizing furnace, and 3,000 ° C. Graphitization was performed to obtain a porous carbon plate.
この多孔質炭素板の各種物性を調べた結果を表１に示
した。表１の結果より明らかなように本発明に係る多孔
質炭素板は面に垂直方向のガス透過性に優れていること
が明らかとなった。Table 1 shows the results of examining various physical properties of the porous carbon plate. As is clear from the results in Table 1, the porous carbon plate according to the present invention was found to have excellent gas permeability in the direction perpendicular to the plane.
〔効果〕 本発明により得られる多孔質炭素板は実施例の結果に
見られるように従来の多孔質カーボン板と同様にリン酸
型燃料電池用多孔質電極炭素板として充分使用可能な物
性を具備している。また面に垂直方向のガス透過性が従
来品に比べて優れている。 [Effect] As can be seen from the results of the examples, the porous carbon plate obtained by the present invention has physical properties that can be sufficiently used as a porous electrode carbon plate for a phosphoric acid type fuel cell similarly to a conventional porous carbon plate. doing. Further, gas permeability in the direction perpendicular to the surface is superior to conventional products.
この特徴は、リン酸型燃料電池用多孔質炭素板として
電池の性能向上に寄与するところ大と思える。また附随
的ではあるが本発明による多孔質炭素板の製造法は抄紙
工程での収率向上、生産性向上に役立つため、安定した
且つ均一な製品を得ることに役立つものである。This feature is considered to contribute greatly to the performance improvement of the cell as a porous carbon plate for a phosphoric acid type fuel cell. Although it is optional, the method for producing a porous carbon plate according to the present invention is useful for improving the yield and productivity in the papermaking process, and is therefore useful for obtaining a stable and uniform product.
Claims (5)
炭素板であって、該板の面に垂直方向に多数の微細孔を
有する炭素板。1. A carbon plate comprising a carbon fiber and a carbide of a thermosetting resin, the carbon plate having a large number of fine holes in a direction perpendicular to the surface of the plate.
性樹脂液を含浸し、硬化後シートの面に垂直方向に多数
の微細孔を穿ち、次いで焼成することを特徴とする炭素
板の製造法。2. A carbon sheet characterized in that a sheet of carbon fiber or a precursor thereof is impregnated with a thermosetting resin liquid, and after curing, a large number of fine holes are formed in the surface of the sheet in a vertical direction, and then fired. Manufacturing method.
性樹脂液を含浸し、この複数枚を積層圧着し、硬化した
後、積層シートの面に垂直方向に多数の微細孔を穿ち、
次いで焼成することを特徴とする炭素板の製造法。3. A sheet of carbon fiber or a precursor thereof is impregnated with a thermosetting resin liquid, a plurality of the sheets are laminated and pressed, and after curing, a large number of fine holes are formed in a direction perpendicular to the surface of the laminated sheet.
Then, a method for producing a carbon plate, characterized by firing.
性樹脂液を含浸し、硬化した後、この複数枚を積層圧着
し、該積層シートの面に垂直方向に多数の微細孔を穿
ち、次いで焼成することを特徴とする炭素板の製造法。4. A sheet of carbon fiber or a precursor thereof is impregnated with a thermosetting resin liquid, and after curing, a plurality of the sheets are laminated and pressed to form a large number of fine holes in a direction perpendicular to the surface of the laminated sheet. And then calcining the carbon plate.
性樹脂液を含浸し、硬化した後、該シートの面に垂直方
向に多数の微細孔を穿ち、この複数枚を積層圧着し、次
いで焼成することを特徴とする炭素板の製造法。5. A sheet of carbon fiber or a precursor thereof is impregnated with a thermosetting resin liquid, and after curing, a large number of fine holes are drilled in a direction perpendicular to the surface of the sheet. Then, a method for producing a carbon plate, characterized by firing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2086947A JP2820492B2 (en) | 1990-03-30 | 1990-03-30 | Carbon plate and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2086947A JP2820492B2 (en) | 1990-03-30 | 1990-03-30 | Carbon plate and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03285873A JPH03285873A (en) | 1991-12-17 |
| JP2820492B2 true JP2820492B2 (en) | 1998-11-05 |
Family
ID=13901066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2086947A Expired - Lifetime JP2820492B2 (en) | 1990-03-30 | 1990-03-30 | Carbon plate and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2820492B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4187683B2 (en) * | 2000-01-27 | 2008-11-26 | 三菱レイヨン株式会社 | Porous carbon electrode substrate for fuel cells |
| KR20010112912A (en) | 2000-01-27 | 2001-12-22 | 나가이 야타로 | Porous Carbon Electrode Substrate and Its Production Method and Carbon Fiber Paper |
| JP4177697B2 (en) * | 2003-04-09 | 2008-11-05 | 松下電器産業株式会社 | Polymer membrane electrode assembly and polymer electrolyte fuel cell |
| KR102469497B1 (en) * | 2016-12-13 | 2022-11-22 | 도레이 카부시키가이샤 | Electrode, redox flow battery and method for producing electrode |
-
1990
- 1990-03-30 JP JP2086947A patent/JP2820492B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03285873A (en) | 1991-12-17 |
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