JPS63236268A - Fuel cell - Google Patents
Fuel cellInfo
- Publication number
- JPS63236268A JPS63236268A JP62068894A JP6889487A JPS63236268A JP S63236268 A JPS63236268 A JP S63236268A JP 62068894 A JP62068894 A JP 62068894A JP 6889487 A JP6889487 A JP 6889487A JP S63236268 A JPS63236268 A JP S63236268A
- Authority
- JP
- Japan
- Prior art keywords
- separator
- conductor
- fuel cell
- insulator
- core
- 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
- 239000000446 fuel Substances 0.000 title claims description 23
- 239000004020 conductor Substances 0.000 claims abstract description 45
- 239000012212 insulator Substances 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims abstract description 7
- 239000003014 ion exchange membrane Substances 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 5
- 239000003792 electrolyte Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 51
- 230000002159 abnormal effect Effects 0.000 abstract description 12
- 238000005342 ion exchange Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 25
- 239000000615 nonconductor Substances 0.000 description 6
- 239000003989 dielectric material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
-
- 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
Abstract
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集電セパレータに係り、特にメタノ
ール燃料電池に好適な集電セパレータに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a current collector separator for a fuel cell, and particularly to a current collector separator suitable for a methanol fuel cell.
メタノール燃料電池の構成を示す、第８図において従来
の電池に使われている集電セパレータの１例を示す、集
電セパレータは高密度カーボン等の導電材で構成しその
周辺をゴム枠体１１で作る。Figure 8, which shows the configuration of a methanol fuel cell, shows an example of a current collector separator used in a conventional battery.The current collector separator is made of a conductive material such as high-density carbon, and is surrounded by a rubber frame 11. Make it with
セパレータの両表面には、気液の流路である溝３が形成
しである。図で例えば表面を酸化剤の空気を流す側とす
ると、裏面は燃料であるメタノールを含むアノライト（
１，５Ｍ ＨｘＳＯ番＋１６０ＭＣＨａ ＯＨ＋ Ｈｚ
Ｏの混合液）を流す側である。集電セパレータの導電
体にはゴム枠体１１に嵌合するフランジ部がある。フラ
ンジ部は気液の漏れがないようにゴム枠体に嵌合しであ
る。第８図のセパレータはゴム枠体１１にフランジ部が
嵌合した状態である。ゴム枠体にはアノライトの給液口
１２、排液口１４．空気の供給口３０．排気口１７が設
けである。また、気液をセパレータへ流入及び流出させ
る液溝１３．給気溝１５．排気溝１６が表裏に設けであ
る。第８図で表側はアノライトの給液及び排液の流路溝
部を実線で示しである。アノライト３１は給液口１２よ
り溝１３に流入しセパレータの流路溝３を上昇し上部溝
１３より２つの排液口１４′へ抜ける。空気３２は図で
裏側に示す溝１５を通りセパレータの流路溝３を流下し
下部の溝１６より２つの排気口１７′へ抜けるようにし
である。Grooves 3, which serve as flow paths for gas and liquid, are formed on both surfaces of the separator. In the figure, for example, if the front side is the side through which the oxidizer air flows, the back side is the anolite containing methanol (fuel) (
1,5M HxSO number +160MCHa OH+ Hz
This is the side where the mixed liquid of O) flows. The conductor of the current collector separator has a flange portion that fits into the rubber frame 11. The flange part is fitted into the rubber frame to prevent leakage of gas and liquid. The separator shown in FIG. 8 is in a state in which the flange portion is fitted into the rubber frame 11. The rubber frame has an anorite liquid supply port 12 and a liquid drain port 14. Air supply port 30. An exhaust port 17 is provided. Also, a liquid groove 13 that allows gas and liquid to flow into and out of the separator. Air supply groove 15. Exhaust grooves 16 are provided on the front and back sides. In FIG. 8, the front side shows the flow channel grooves for supplying and draining the anolyte liquid with solid lines. The anolyte 31 flows into the groove 13 from the liquid supply port 12, ascends the channel groove 3 of the separator, and exits from the upper groove 13 to the two liquid drain ports 14'. The air 32 flows down the flow path groove 3 of the separator through the groove 15 shown on the back side of the figure, and exits through the lower groove 16 to the two exhaust ports 17'.
第８図は、電池積層の構成を示したものであるが、電解
質を景んだイオン交換膜４ｏを空気極４１とメタノール
極４２の両電極で挾み、その両外側を気液の通る穴をあ
けたガスケット３９が両側より接して位置する。さらに
その両外側をゴム枠体１１におさめた、集電セパレータ
１ｏが位置し密着積層すると単位電池が構成される。イ
オン交換膜４０．ガスケット３９及びゴム枠体嵌合セパ
レータで囲まれた空間は気液の流路溝室を構成する。空
気極の介在する側が空気流路溝室、メタノール極の介在
する側がメタノール流路溝室である。Figure 8 shows the structure of a battery stack, in which an ion exchange membrane 4o overlooking the electrolyte is sandwiched between an air electrode 41 and a methanol electrode 42, and holes for gas and liquid to pass through are formed on both sides of the membrane. The gasket 39 with the opening is placed in contact with it from both sides. Further, a current collector separator 1o whose both outer sides are housed in a rubber frame 11 is positioned, and when they are closely laminated, a unit battery is constructed. Ion exchange membrane 40. The space surrounded by the gasket 39 and the rubber frame fitting separator constitutes a gas-liquid flow channel chamber. The side where the air electrode is located is the air flow path groove chamber, and the side where the methanol electrode is located is the methanol flow path groove chamber.
図よりアノライト３１は積層ゴム枠体の下部穴より矢印
で示したように集電セパレータの流路溝３に流れ上昇し
上部穴３１′に流出する。一方、酸化剤の空気３２はゴ
ム枠体の上部穴３ｏよりセパレータ裏側の流路溝３を流
下し下部穴３２に流出する。As shown in the figure, the anorite 31 flows upward from the lower hole of the laminated rubber frame into the channel groove 3 of the current collector separator as indicated by the arrow, and flows out into the upper hole 31'. On the other hand, the oxidizing air 32 flows down through the channel groove 3 on the back side of the separator from the upper hole 3o of the rubber frame and flows out into the lower hole 32.
このように、単位電池へ気液を供給し、気液を排出する
ことにより発電する。In this way, electricity is generated by supplying gas and liquid to the unit cells and discharging the gas and liquid.
メタノール燃料電池は、第８図に構成を示した単位電池
を積層した両端に、絶縁端板、端板を位置させこれらを
ボルトで所定の圧力で締付けると各単位電池は電極の介
在する部分で直列に接続された電池となる。また、各単
位電池の流路溝室は気密に構成される。この電池の発生
電気は積層の両端に設けた集電板の端子より取り出され
る。In a methanol fuel cell, insulating end plates and end plates are placed at both ends of a stack of unit cells shown in Figure 8, and these are tightened with bolts at a predetermined pressure. The batteries are connected in series. Further, the channel groove chamber of each unit battery is configured to be airtight. The electricity generated by this battery is taken out from the terminals of current collector plates provided at both ends of the stack.
電池へ供給する燃料は管より各単位電池へ供給される。Fuel to be supplied to the batteries is supplied to each unit battery through a pipe.
単位電池で燃料の一部が消費されるが、残りの燃料は排
液管に集められ図示しない燃料タンクに戻る。燃料は給
液管から単位電池へ常時流入し給液系を循環する。この
間、発電によって燃料であるＣ Ｈａ ＯＨが消費する
のでこれを補給する。一方、酸化剤の空気は管から各単
位電池へ供給し、電池からの排気は管５６から排出する
。A portion of the fuel is consumed in the unit cell, but the remaining fuel is collected in a drain pipe and returned to a fuel tank (not shown). Fuel constantly flows into the unit cell from the liquid supply pipe and circulates through the liquid supply system. During this time, the fuel C Ha OH is consumed by the power generation, so this is replenished. On the other hand, the oxidizer air is supplied to each unit cell from the tube, and the exhaust air from the cell is discharged from the tube 56.
第９図は単位電池を２０個積層したメタノール燃料電池
で各単位電池の発生電圧（負荷電流６０ｍ Ａ ／ ｃ
ｍ” 、電極面積当りにおける）の−例を示したもので
ある。電池番号で、５，１０，１１゜１４番の発生電圧
が他に対し、低い値を示している。積層中に低い性能の
電池が直列接続されていると、例えば乾電池の場合と同
様、電気を消費して全体的に電池性能を悪くする。従っ
て、これらの電池は積層から抜く必要がある。しかし、
単位電池を積層しそれをボルトで締付した電池は解体し
なければならない。Figure 9 shows a methanol fuel cell in which 20 unit cells are stacked, and the generated voltage of each unit cell (load current 60 m A / c
m” (per electrode area).The generated voltage of battery numbers 5, 10, 11° and 14 is lower than the others.Low performance during lamination If two batteries are connected in series, as with dry cell batteries, for example, they will consume electricity and deteriorate the overall battery performance.Therefore, these batteries need to be removed from the stack.However,
Batteries made by stacking unit cells and tightening them with bolts must be dismantled.
そこで、解体しないで性能の低い電池を接続から除くに
は単位電池の接続が変更できるようにすることが必要で
ある。Therefore, in order to remove low-performance batteries from the connection without disassembling the unit, it is necessary to make it possible to change the connection of the unit batteries.
メタノール燃料電池は単位電池の必要個数を積層して所
定の電圧を発生させる。積層中に単位電池で発生電圧の
低いのがあっても、従来、その単位電池を取り除いた残
りの単位電池を接続することが出来ず、全体的には性能
の低い電池となっていた。A methanol fuel cell generates a predetermined voltage by stacking a required number of unit cells. Conventionally, even if there is a unit battery in the stack that generates a low voltage, it has not been possible to connect the remaining unit batteries after removing that unit battery, resulting in a battery with poor performance overall.
しかも、発生電圧が低い単位電池が存在するとこれが他
の単位電池の発生電気を消費することで電池寿命にも悪
い影響を与える。Moreover, if there is a unit battery that generates a low voltage, it consumes the electricity generated by other unit batteries, which adversely affects the battery life.
そこで本発明は、これら低性能の単位電池が初期に存在
した場合、あるいは運転中に発生してきたならその単位
電池を接続がら取り除いて接続が出来るようにしたもの
である。また、初期に性能が低かったが回復したものが
あればこれを接続することが出来るようにしたものであ
る。Therefore, in the present invention, if such a low-performance unit battery exists at the beginning or if it occurs during operation, the unit battery can be removed from the connection and then connected. In addition, if there is a device whose performance was initially low but has recovered, it is now possible to connect it.
従来の単位電池は積層すると電池内部で直列接続となる
。そこで、セパレータの芯部に絶縁体を設けその面外側
面に導電体を固着位置させ、導電体には気液の流路溝を
設け、セパレータには突出した接続部を設けることによ
り、任意の電池を直列に接続できるようにしたものであ
る。When conventional unit batteries are stacked, they are connected in series inside the battery. Therefore, by providing an insulator in the core of the separator, fixing a conductor to the outer surface of the separator, providing a gas-liquid flow channel in the conductor, and providing a protruding connection part in the separator, it is possible to This allows batteries to be connected in series.
積層の単位電池の接続は絶縁体で仕切であるセパレータ
のメタノール極側と空気極側を外部で導体へ接続する。To connect a stacked unit cell, the methanol electrode side and the air electrode side of a separator, which is a partition with an insulator, are connected to a conductor externally.
これで単位電池の積層は従来形のセパレータの単位電池
の積層と同様、直列接続となる。The stack of unit batteries is now connected in series, similar to the stack of unit batteries in a conventional separator.
ここで、積層中に異常単位電池が介在し、これを除いた
接続は、異常単位電池の両側に位置するセパレータの空
気極側とメタノール極側の接続を開放する。これで、電
池の直列接続は、その部分が開路となる。次に、異常単
位電池の両側に位置するセパレータで一方側セパレータ
の外側に位置するメタノール極側と他方側セパレータの
外側に位置する空気極側を導体で接続することで、異常
単位電池が積層中に介在していても、これを除しまた電
池の直列接続が出来る。Here, an abnormal unit battery is interposed in the stacking, and the connection excluding this unit opens the connection between the air electrode side and the methanol electrode side of the separators located on both sides of the abnormal unit battery. This will open that part of the series connection of the batteries. Next, by connecting the methanol electrode side located outside one side separator and the air electrode side located outside the other side separator with a conductor in the separators located on both sides of the abnormal unit battery, the abnormal unit battery is stacked. Even if there is an intervening battery, this can be removed and the batteries can be connected in series.
以下、本発明の実施例を図面により説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図ないし第３図及び第５図において、（ａ）は平面
図、（ｂ）はそのＹ−Ｙ断面図、（Ｃ）はｘ−ｘ断面図
である。第１図においてセパレータの平面（、）及び矢
印部断面図（ｂ）、（Ｃ）を示しである。断面図により
中央に電気絶縁体１（例えば塩化ビニル等）を位置させ
、その両表面に導電体２（耐酸性でこれらの液が浸透し
ない高密度のカーボン材及び金属等）を固着させる。導
電体２には何本かの流路溝３が設けである。図では１例
として溝は長手方向に形成しである。セパレータの縁部
はフランジ５となる。セパレータには突出した接続部４
が設けである。接続部の面積は電池から発生電圧を損失
なく取りだせる広さにしである。接続部芯部は絶縁体が
位置し、その両表面に導電体が固着しである。接続部に
はセパレータの両表面の接続に用いる切欠した穴４が設
けである。接続部の厚みはフランジ部と同等あるいはそ
れ以下が望ましい。セパレータは絶縁体の両表面以外の
面には導電体を固着せず、セパレータの両表面は絶縁体
によって遮断し導電しない構造をしている。1 to 3 and 5, (a) is a plan view, (b) is a YY sectional view thereof, and (C) is an xx sectional view. In FIG. 1, a plan view (,) and sectional views (b) and (C) of the separator are shown. An electrical insulator 1 (eg, vinyl chloride, etc.) is positioned in the center according to the cross-sectional view, and conductors 2 (acid-resistant, high-density carbon material, metal, etc. that do not penetrate these liquids) are fixed to both surfaces thereof. The conductor 2 is provided with several channel grooves 3. In the figure, as an example, the grooves are formed in the longitudinal direction. The edge of the separator becomes a flange 5. The separator has a protruding connection part 4.
is the provision. The area of the connection part is large enough to extract the generated voltage from the battery without loss. An insulator is located at the core of the connection part, and conductors are fixed to both surfaces of the insulator. The connecting portion is provided with a cutout hole 4 used for connecting both surfaces of the separator. It is desirable that the thickness of the connection part be equal to or less than that of the flange part. The separator has a structure in which no conductor is fixed to surfaces other than both surfaces of the insulator, and both surfaces of the separator are blocked by the insulator and are not conductive.
他の実施例を第２図に示す。図はセパレータの平面（ａ
）及び矢印部の断面（ｂ）、（Ｑ）を示す。断面図によ
り中央に電気絶縁体１を位置させ、その両表面に導電体
２′、さらに、導電体２′の両表面に導電体２′を固着
させる。導電体２′は薄金属板あるいはカーボン板等、
導電性に優れ、縞付圧縮に対し丈夫であるもの、導電体
２′は耐酸、耐アルカリで液の浸透がない導電材である
。Another embodiment is shown in FIG. The figure shows the plane of the separator (a
) and cross sections (b) and (Q) of the arrowed portion are shown. An electrical insulator 1 is positioned in the center as shown in the sectional view, and conductors 2' are fixed to both surfaces of the electrical insulator 1, and conductors 2' are fixed to both surfaces of the electrical conductor 2'. The conductor 2' is a thin metal plate, carbon plate, etc.
The conductor 2' is a conductive material that has excellent conductivity and is resistant to striped compression and is resistant to acids and alkalis and does not allow liquid to penetrate.
導電体２′と導電体２′は剥離なく電気抵抗も小さく固
着させる。導電体２′には何本かの流路溝３を設けであ
る。セパレータの外周縁部はフランジ５となる。セパレ
ータには突出した接続部４が設けである。接続部は絶縁
体を芯部に位置し、その両表面に導電体２′が固着しで
ある。接続部にはセパレータの両表面の接続に用いる切
欠穴４′が設けである。セパレータは両表面を導電体で
接続するのみ導通する構造をしている。The conductors 2' and 2' are fixed together without peeling and with low electrical resistance. The conductor 2' is provided with several channel grooves 3. The outer peripheral edge of the separator becomes a flange 5. The separator is provided with a protruding connecting portion 4. The connection part has an insulator located at the core, and conductors 2' fixed to both surfaces of the insulator. The connecting portion is provided with a cutout hole 4' for connecting both surfaces of the separator. The separator has a structure in which conduction occurs only when both surfaces are connected by a conductor.
更に他の実施例を第３図に示す。第３図（ａ）はセパレ
ータの平面及び矢印部の断面（ｂ）。Still another embodiment is shown in FIG. FIG. 3(a) is a plan view of the separator and a cross section (b) taken along the arrow.
（、）を示す。断面図により、中央に電気絶縁体１を位
置させ、その両表面に導電体２′及び導電体２′を固着
させる６導電体２′は絶縁体の両表面の一部までとし、
その両表面を導電体２″力〜固着しである。導電体２′
には何本かの流路溝３を設けである。セパレータの外周
部はフランジ５となる。セパレータには突出した接続部
４が設けである。接続部は絶縁体を芯部に位置し、その
両表面に導電体２′が固着しである。接続部にはセノ（
レータの両表面の接続に用いる切欠穴４′力１設＆すで
ある。セパレータは両表面を導電体で接続するときだけ
導通する。Indicates (,). As shown in the cross-sectional view, an electric insulator 1 is located in the center, and a conductor 2' is fixed to both surfaces of the electric insulator 1.The electric conductor 2' extends to a part of both surfaces of the insulator.
The conductor 2' is fixed on both surfaces.The conductor 2'
A number of channel grooves 3 are provided. The outer periphery of the separator becomes a flange 5. The separator is provided with a protruding connecting portion 4. The connection part has an insulator located at the core, and conductors 2' fixed to both surfaces of the insulator. The connection part has a seno (
There is one cutout hole (4') used to connect both surfaces of the rotor. A separator becomes electrically conductive only when both surfaces are connected by a conductor.
更に他の実施例を第３図に示す。第４図（ａ）はセパレ
ータの平面及び（ｂ）、（Ｑ）ｔ±矢印部の断面図を示
す。断面図により中央に電気絶縁体１が位置する。絶縁
体１には両表面に何本かの流路溝３を設けである。Still another embodiment is shown in FIG. FIG. 4(a) shows a plan view of the separator, and FIG. 4(b), (Q) shows a sectional view of the t±arrow portion. The electrical insulator 1 is located in the center according to the cross-sectional view. The insulator 1 is provided with several channel grooves 3 on both surfaces.
セパレータには突出した接続部４が設けてあり、接続部
には切欠穴４′が設けである。セパレータ外周縁部はフ
ランジ５となる。絶縁体１の両表面は導電剤２を塗布し
たもの、あるいは、金属箔２を張付したものである。セ
パレータの両表面は導電体で接続しなければ導通しない
構造をしている。The separator is provided with a protruding connecting portion 4, and the connecting portion is provided with a cutout hole 4'. The outer peripheral edge of the separator becomes a flange 5. Both surfaces of the insulator 1 are coated with a conductive agent 2 or pasted with a metal foil 2. The separator has a structure in which both surfaces cannot be electrically connected unless connected with a conductor.
第４図は本発明のセパレータ１０’ をゴム枠体１１の
溝に嵌合したものである。第４図（ａ）はその平面図、
第４図（ｂ）、（ｃ）はそれぞれ八−Ａ、Ｂ−Ｂ断面図
である。嵌合部ではセパレータの両表面は導通しない。FIG. 4 shows the separator 10' of the present invention fitted into the groove of the rubber frame 11. Figure 4(a) is its plan view;
FIGS. 4(b) and 4(c) are sectional views taken along line 8-A and line BB, respectively. At the fitting portion, both surfaces of the separator are not electrically connected.
ゴム枠体には、給液口１２、液溝１３．排液口１４．給
気Ｆｐｔ１５．排気溝１６．排気口１７．セパレータの
接続部４が挿入する穴１８が設けである。穴１８にはセ
パレータの接続部が挿入され一部が外に出る。ゴム枠体
とセパレータの嵌合部は面を押圧することで気液の漏洩
がない。The rubber frame has a liquid supply port 12, a liquid groove 13. Drain port 14. Air supply Fpt15. Exhaust groove 16. Exhaust port 17. A hole 18 is provided into which the connecting portion 4 of the separator is inserted. A connecting portion of the separator is inserted into the hole 18 and a portion thereof comes out. There is no leakage of gas or liquid by pressing the surfaces of the fitting portion between the rubber frame and the separator.
第６図は本発明のセパレータ９による単位電池積層状態
の１部を示す、ゴム枠体１１からセパレータの一部で突
出した接続部の穴４′に接続ネジ２１を挿入し締付ける
ことによりセパレータの両表面が導電接続される。接続
をよくするため締付にはワッシャー２０を挾む。FIG. 6 shows a part of a unit cell stacked state using the separator 9 of the present invention. The connection screw 21 is inserted into the hole 4' of the connection part protruding from the rubber frame 11 in a part of the separator and tightened. Both surfaces are conductively connected. To improve the connection, a washer 20 is used for tightening.
図はイオン交換膜４０を挾んで空気極及びメタノール極
で構成する単位電池の発生電圧が正常で各単位電池の電
圧が均一であるときのセパレータの接続方法の１例を示
しである。この場合、積層単位電池の接続は従来型セパ
レータを使った電池同様直列となる。The figure shows an example of a method of connecting separators when the generated voltage of a unit battery composed of an air electrode and a methanol electrode with an ion exchange membrane 40 sandwiched therebetween is normal and the voltage of each unit battery is uniform. In this case, the stacked unit batteries are connected in series, similar to batteries using conventional separators.
次に積層単位電池の内に１発生電圧の低いものが介在す
るときの接続を第７図に示す。イオン交換膜４０ａとこ
れを挾む空気極４１ａ及びメタノール極４２ａで構成す
る単位電池は正常でイオン交換膜４０ｂとこれを挾む空
気極４１ｂ及びメタノール極４２ｂで構成する単位電池
が異常であるときには、次のように、異常な単位電池を
除いた接続が本発明セパレータによってできる。いま、
異常単位電池とするイオン交換［４０ｂ空気極４１ｂメ
タノール極４２ｂで構成する単位電池を電池接続から除
くには、接続ネジ２１ａのようなセパレータの両表面を
導電接続するネジを用いず、１セパレータの１表面と他
セパレータの１表面を外側で導電接続するネジ２１ｂを
使う１図ではネジ類とナツトがセパレータの導電面に接
し内側には絶縁体の締付用カラー２５を用いた１例を示
した。この場合、セパレータ間にカラー２５を用いるこ
とによりセパレータが破損なくしつかり接続される。Next, FIG. 7 shows a connection when one of the laminated unit cells has one with a low generated voltage. When the unit battery consisting of the ion exchange membrane 40a and the air electrode 41a and methanol electrode 42a sandwiching it is normal, the unit battery consisting of the ion exchange membrane 40b and the air electrode 41b and methanol electrode 42b sandwiching it is abnormal. , Connections excluding abnormal unit batteries can be made using the separator of the present invention as follows. now,
Ion exchange to make an abnormal unit battery [40b] To remove a unit battery composed of an air electrode 41b and a methanol electrode 42b from battery connection, one separator is removed without using a screw that conductively connects both surfaces of the separator, such as the connection screw 21a. Figure 1 shows an example in which the screws and nuts are in contact with the conductive surface of the separator, and an insulating tightening collar 25 is used on the inside. Ta. In this case, by using the collar 25 between the separators, the separators can be firmly connected without damage.
このように本発明セパレータを用いると異常電池は電池
接続から除くことができる。As described above, by using the separator of the present invention, abnormal batteries can be excluded from battery connections.
第５図は他の実施例におけるセパレータの平面（ａ）及
び矢印部断面図（ｂ）、（ｃ）を示しである。断面図で
芯部に電気絶縁体１（可撓性塩化ビニル、テフロン、ビ
ニール等のシート）を位置させ、その両表面に導電体２
′ （例えば薄銅板。FIG. 5 shows a plan view (a) and cross-sectional views (b) and (c) of a separator in another embodiment. In the cross-sectional view, an electrical insulator 1 (sheet of flexible vinyl chloride, Teflon, vinyl, etc.) is positioned at the core, and conductors 2 are placed on both surfaces.
′ (For example, thin copper plate.
金網等）を固着させる。さらに導電体２′上に導電体２
″ （カーボン材等）を固着しである。芯部の電気絶縁
体と導電体は剥離なく、導電体２′は気液が導電体２′
へ浸透しない材質で構成する。(wire mesh, etc.). Furthermore, the conductor 2 is placed on the conductor 2'.
'' (carbon material, etc.) is fixed.The electrical insulator and conductor in the core part do not peel off, and the gas and liquid in the conductor 2'
Constructed from a material that does not penetrate.
導電体２′には何本かの流路溝３を設けである。The conductor 2' is provided with several channel grooves 3.
セパレータの縁部はフランジ５となる。セパレータ上部
には接続部４を設け、接続部は絶縁体を芯部に位置しそ
の両表面に導電体２′がくる。絶縁体１は接続部の一部
までの寸法でもよく、絶縁体と導電体２′は固着しない
で、可撓性を持たせた構造をとる。The edge of the separator becomes a flange 5. A connection part 4 is provided on the upper part of the separator, and the connection part has an insulator at its core, and conductors 2' are placed on both surfaces of the connection part. The insulator 1 may have a size up to a part of the connection part, and the insulator and the conductor 2' are not fixed but have a flexible structure.
本セパレータによる単位電池の接続（図示なし）は導電
体２′が可撓するので接続変更が通常のネジ等で簡易に
できる。When connecting unit batteries using this separator (not shown), since the conductor 2' is flexible, the connection can be easily changed using ordinary screws or the like.
本発明によれば積層内の異常電池を解体組立しなくても
、そのままで電池接続から抜くことができる。従って正
常な単位電池のみの直列接続ができる。According to the present invention, an abnormal battery in a stack can be removed from the battery connection without being disassembled and reassembled. Therefore, only normal unit batteries can be connected in series.
第１図ないし第３図及び第５図は本発明の燃料電池に用
いられるセパレータの構造を示す平面図及び断面図、第
４図は本発明のセパレータをゴム枠体に嵌合した状態を
示す平面図及び断面図、第６図及び第７図は本発明のセ
パレータの接続法を示した要部断面図、第８図は従来の
単位電池の分解組立図、第９図は従来の積層電池の性能
を示すグラフである。
１・・・電気絶縁体、２・・・導電体、３・・・流路溝
、４・・・接続部、４′・・・接続穴、５・・・フラン
ジ部、１１・・・ゴム枠体、１２・・・給液口、１３・
・・液溝、１４・・・排液口、１５・・・給気溝、１６
・・・排気溝、１７・・・排気口、１８・・・挿入穴、
２０’・・・ワッシャー、２１・・・接続ネジ、２５・
・・絶縁カラー、３１・・・アノライト。Figures 1 to 3 and 5 are plan views and cross-sectional views showing the structure of the separator used in the fuel cell of the present invention, and Figure 4 shows the separator of the present invention fitted into a rubber frame. A plan view and a sectional view, FIGS. 6 and 7 are cross-sectional views of main parts showing the method of connecting the separator of the present invention, FIG. 8 is an exploded view of a conventional unit battery, and FIG. 9 is a conventional stacked battery. It is a graph showing the performance of. DESCRIPTION OF SYMBOLS 1... Electric insulator, 2... Conductor, 3... Channel groove, 4... Connection part, 4'... Connection hole, 5... Flange part, 11... Rubber Frame body, 12...liquid supply port, 13.
...Liquid groove, 14...Drain port, 15...Air supply groove, 16
...Exhaust groove, 17...Exhaust port, 18...Insertion hole,
20'...Washer, 21...Connection screw, 25.
...Insulation color, 31...Anolyte.
Claims (1)
する燃料極及び酸化剤を電気化学的に還元する酸化剤極
の両電極で挾みその外側を導電体で両極へ燃料及び酸化
剤をそれぞれ供給する流路を表裏に有し、かつ、両極に
よつて発生する電気を集電するセパレータを密着積層さ
せてなる燃料電池において、該セパレータの芯部を絶縁
体で構成し、その両外側を導電体で成形し、一部に集電
した電気の取り出し接続部を設けてなることを特徴とす
る燃料電池。 ２、特許請求の範囲第１項において、集電セパレータの
芯部の両外側を導電材で構成し、さらにその両外側を導
電材で形成したことを特徴とする燃料電池。 ３、特許請求の範囲第１項において、集電セパレータの
芯部の両外側の一部が導電材とし、さらにその両外側を
導電材で形成したことを特徴とする燃料電池。[Claims] 1. An electrolyte ion exchange membrane is sandwiched between two electrodes: a fuel electrode that electrochemically oxidizes a fuel substance and an oxidizer electrode that electrochemically reduces an oxidizing agent, and the outside of the membrane is covered with a conductor. In a fuel cell in which separators are laminated in close contact with each other and have flow paths on the front and back sides for supplying fuel and oxidant to each other, and collect electricity generated by both electrodes, the core of the separators is made of an insulator. What is claimed is: 1. A fuel cell characterized in that the both outer sides of the fuel cell are formed of a conductive material, and a part of the fuel cell is provided with a connection part for taking out the collected electricity. 2. A fuel cell according to claim 1, characterized in that both outer sides of the core of the current collector separator are made of a conductive material, and further, both outer sides of the core are made of a conductive material. 3. The fuel cell according to claim 1, wherein a portion of both outer sides of the core of the current collector separator is made of a conductive material, and further, both outer sides of the core are made of a conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62068894A JPS63236268A (en) | 1987-03-25 | 1987-03-25 | Fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62068894A JPS63236268A (en) | 1987-03-25 | 1987-03-25 | Fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63236268A true JPS63236268A (en) | 1988-10-03 |
Family
ID=13386816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62068894A Pending JPS63236268A (en) | 1987-03-25 | 1987-03-25 | Fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63236268A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0629015A1 (en) * | 1993-04-30 | 1994-12-14 | De Nora Permelec S.P.A. | Electrochemical cell provided with ion exchange membranes and bipolar plates |
| WO2001093357A1 (en) * | 2000-06-02 | 2001-12-06 | Sony Corporation | Fuel battery |
| JP2004055296A (en) * | 2002-07-18 | 2004-02-19 | Sony Corp | Separator for fuel cell, power generation cell, and fuel cell |
| JP2007019007A (en) * | 2005-07-05 | 2007-01-25 | Samsung Sdi Co Ltd | Fuel cell stack |
| KR100916183B1 (en) * | 2001-11-08 | 2009-09-08 | 누베라 퓨엘 셀스 유로프 에스.아르.엘. | Method for reusing current collectors/distributors of a membrane electrochemical generator |
| US7632599B2 (en) * | 2003-07-15 | 2009-12-15 | Nitto Denko Corporation | Separator for fuel cell and fuel cell using the same |
| US7662499B2 (en) * | 2002-07-31 | 2010-02-16 | Sfc Smart Fuel Cell Ag | Plate elements for fuel cell stacks |
-
1987
- 1987-03-25 JP JP62068894A patent/JPS63236268A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0629015A1 (en) * | 1993-04-30 | 1994-12-14 | De Nora Permelec S.P.A. | Electrochemical cell provided with ion exchange membranes and bipolar plates |
| WO2001093357A1 (en) * | 2000-06-02 | 2001-12-06 | Sony Corporation | Fuel battery |
| KR100916183B1 (en) * | 2001-11-08 | 2009-09-08 | 누베라 퓨엘 셀스 유로프 에스.아르.엘. | Method for reusing current collectors/distributors of a membrane electrochemical generator |
| JP2004055296A (en) * | 2002-07-18 | 2004-02-19 | Sony Corp | Separator for fuel cell, power generation cell, and fuel cell |
| US7662499B2 (en) * | 2002-07-31 | 2010-02-16 | Sfc Smart Fuel Cell Ag | Plate elements for fuel cell stacks |
| US7632599B2 (en) * | 2003-07-15 | 2009-12-15 | Nitto Denko Corporation | Separator for fuel cell and fuel cell using the same |
| JP2007019007A (en) * | 2005-07-05 | 2007-01-25 | Samsung Sdi Co Ltd | Fuel cell stack |
| US7981562B2 (en) | 2005-07-05 | 2011-07-19 | Samsung Sdi Co., Ltd. | Fuel cell stack with heat sink element |
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