JPH047570Y2 - - Google Patents
Info
- Publication number
- JPH047570Y2 JPH047570Y2 JP1983046373U JP4637383U JPH047570Y2 JP H047570 Y2 JPH047570 Y2 JP H047570Y2 JP 1983046373 U JP1983046373 U JP 1983046373U JP 4637383 U JP4637383 U JP 4637383U JP H047570 Y2 JPH047570 Y2 JP H047570Y2
- Authority
- JP
- Japan
- Prior art keywords
- cathode
- anode
- ion exchange
- exchange membrane
- current collector
- 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
Links
- 239000003014 ion exchange membrane Substances 0.000 claims description 22
- 239000000446 fuel Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 23
- 229910002804 graphite Inorganic materials 0.000 description 23
- 239000010439 graphite Substances 0.000 description 23
- 210000004027 cell Anatomy 0.000 description 11
- 230000002265 prevention Effects 0.000 description 7
- 239000000565 sealant Substances 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 210000003850 cellular structure Anatomy 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- Y02E60/521—
Description
【考案の詳細な説明】
本考案は、電解質にイオン交換膜を用い、リブ
付き黒鉛板を集電体としたヒドラジン−空気燃料
電池、メタノール−空気燃料電池のような液体燃
料電池等における、アノライトの漏液防止、電極
とイオン交換膜間の密着性向上に関する物であ
る。[Detailed description of the invention] This invention uses an anorite in liquid fuel cells such as hydrazine-air fuel cells and methanol-air fuel cells that use an ion exchange membrane as an electrolyte and a ribbed graphite plate as a current collector. This is related to preventing liquid leakage and improving adhesion between electrodes and ion exchange membranes.
従来この種の燃料電池は第１図のごとく構成さ
れている。イオン交換膜１をはさんで陰極２、陽
極３があり、陰極２からアノライトの回り込みを
防止するために、これ等の接合場面より外周囲に
弾性シール材４を塗布し、さらに陰極２とアノラ
イト室リブ付き黒鉛板５の間からのアノライトの
液漏れを防止するために、この部分にも弾性シー
ル材４を塗布し気密的に結着させ、陽極３側から
空気室リブ付き黒鉛板６を配置し、この電池を加
圧してアノライト室リブ付き黒鉛板５、空気室リ
ブ付き黒鉛板６のリブ表面と陰極２、陽極３面の
接触抵抗を小さくし、イオン交換膜１と陰極２、
陽極３の密着性を向上させ弾性シール材４を塗布
した部分の気密性も高めていた。 Conventionally, this type of fuel cell has been constructed as shown in FIG. There is a cathode 2 and an anode 3 sandwiching an ion exchange membrane 1. In order to prevent the anolyte from going around from the cathode 2, an elastic sealant 4 is applied to the outer periphery of the joint between these two parts, and the cathode 2 and anode 3 are separated from each other. In order to prevent the anolyte from leaking between the graphite plates 5 with chamber ribs, an elastic sealant 4 is also applied to these parts to seal them airtight, and the graphite plates 6 with air chamber ribs are inserted from the anode 3 side. The battery is pressurized to reduce the contact resistance between the rib surfaces of the anorite chamber ribbed graphite plate 5 and the air chamber ribbed graphite plate 6 and the cathode 2 and anode 3 surfaces, and the ion exchange membrane 1 and the cathode 2,
The adhesion of the anode 3 was improved, and the airtightness of the area coated with the elastic sealant 4 was also improved.
しかしながら、空気室リブ付き黒鉛板６では漏
液防止部全面を加圧でないため、電池を長時間運
転するとリブの当たつていない部分から液漏れが
起つた。また、弾性シール材４一定量均一に塗布
する事は困難であり、この塗布面が部分的に厚く
なり、アノライト室リブ付き黒鉛板５、空気室リ
ブ付き黒鉛板６と陰極２、陽極３面の接触抵抗が
大きくなり、ひいてはイオン交換膜１と陰極２、
陽極３の密着性が低下し、電池性能り低下の原因
にもなつていた。 However, since the air chamber ribbed graphite plate 6 does not pressurize the entire surface of the leakage prevention section, when the battery is operated for a long time, liquid leakage occurs from the portions not in contact with the ribs. In addition, it is difficult to uniformly apply a certain amount of the elastic sealant 4, and the coated surface becomes partially thick, resulting in the anorite chamber ribbed graphite plate 5, the air chamber ribbed graphite plate 6, the cathode 2, and the anode 3. The contact resistance between the ion exchange membrane 1 and the cathode 2 increases, and as a result
The adhesion of the anode 3 was reduced, which was also a cause of deterioration in battery performance.
本考案の目的は電池の漏液防止の向上と、弾性
シール材等による電極とイオン交換膜の密着性の
低下を防止することにある。 The purpose of the present invention is to improve the prevention of battery leakage and to prevent a decrease in the adhesion between the electrode and the ion exchange membrane due to an elastic sealant or the like.
上記の目的を達成するために、本考案では、弾
性シール材等の厚さ不明確のものの代わりに、厚
さが明確で、且つ、平行な面をしているゴム製の
ガスケツトをアノライト室リブ付黒鉛板側の陰極
外周囲に使い、さらに、このゴム製のガスケツト
全面を加圧するために、空気室リブ付き黒鉛板と
ゴム製のガスケツトの間の陽極外周囲に剛性な例
えばプラスチツク製のガスケツトを配置した。 In order to achieve the above object, the present invention uses a rubber gasket with a definite thickness and parallel surfaces to fill the ribs of the anolyte chamber, instead of something with an uncertain thickness such as an elastic sealing material. A rigid gasket made of, for example, plastic is used around the outer circumference of the cathode on the side of the graphite plate with air chambers, and in order to pressurize the entire surface of this rubber gasket, a rigid gasket made of, for example, plastic is used around the outer circumference of the anode between the graphite plate with air chamber ribs and the rubber gasket. was placed.
また電解質だけに使つていたイオン交換膜に漏
液防止材の役目も兼ねるようにした。 Additionally, the ion exchange membrane, which was previously used only for electrolytes, was made to also serve as a leakage prevention material.
第２図は本考案の一実施例を示す単電池の構成
図である。イオン交換膜１の寸法を陰極２、陽極
３より大きくし、アノライト室リブ付き黒鉛板
（陰極集電体）５、空気室リブ付き黒鉛板（陽極
集電体）６と同外形寸法の陰極２より大きな穴の
空いたゴム製ガスケツト７をイオン交換膜１とア
ノライト室リブ付き黒鉛板５の間の陰極２の外周
囲に配置する。このゴム製のガスケツト７の厚み
を陰極２の厚みとアノライト室リブ付き黒鉛板５
のリブ１０の高さ（ゴム製ガスケツト７と接する
黒鉛板５の部分からの高さ）を合せた長さよりも
数mm薄くしておく。この時陰極２の厚みが0.6mm、
アノライト室リブ付き黒鉛板５のリブ１０のゴム
製ガスケツト７と接する面からの高さ１１かせ
0.5mmである場合、ゴム製ガスケツトの厚みを１
mmとする。陰極２やリブ１０の高さ１１が変われ
ばゴム製ガスケツト７の厚みが変わる。空気室リ
ブ付き黒鉛板６とイオン交換膜１の間の陽極３の
外周囲にゴム製ガスケツト７と同外形寸法のプラ
スチツク製ガスケツト８を配置する。空気室リブ
付き黒鉛板６のリブ１２の高さ（ガスケツト８と
接する黒鉛板６の部分からの高さ）１３と陽極３
の厚みを合せた長さより数mm薄くしておく。この
時の陽極３の厚さが0.6mm、リブ１２の高さ１３
が0.5mmであるとき、ガスケツト８の厚みは１mm
となる。陽極３の厚みやリブ１２の高さ１３が変
わればガスケツト８の厚みも変わつてくる。 FIG. 2 is a block diagram of a single cell showing an embodiment of the present invention. The dimensions of the ion exchange membrane 1 are larger than those of the cathode 2 and the anode 3, and the cathode 2 has the same external dimensions as the graphite plate with ribs in the anorite chamber (cathode current collector) 5 and the graphite plate with ribs in the air chamber (anode current collector) 6. A rubber gasket 7 with larger holes is placed around the outer periphery of the cathode 2 between the ion exchange membrane 1 and the ribbed graphite plate 5 of the anolyte chamber. The thickness of this rubber gasket 7 is the thickness of the cathode 2 and the graphite plate 5 with ribs in the anorite chamber.
The height of the rib 10 (height from the part of the graphite plate 5 in contact with the rubber gasket 7) is made several mm thinner than the combined length. At this time, the thickness of cathode 2 is 0.6 mm.
Height 11 skeins of the ribs 10 of the anorite chamber ribbed graphite plate 5 from the surface in contact with the rubber gasket 7
If the thickness is 0.5mm, reduce the thickness of the rubber gasket by 1
Let it be mm. If the height 11 of the cathode 2 or the rib 10 changes, the thickness of the rubber gasket 7 changes. A plastic gasket 8 having the same external dimensions as the rubber gasket 7 is placed around the outer periphery of the anode 3 between the air chamber ribbed graphite plate 6 and the ion exchange membrane 1. The height of the rib 12 of the air chamber ribbed graphite plate 6 (height from the part of the graphite plate 6 that contacts the gasket 8) 13 and the anode 3
Make it several mm thinner than the combined length of the thickness. At this time, the thickness of the anode 3 is 0.6 mm, and the height of the rib 12 is 13
is 0.5mm, the thickness of gasket 8 is 1mm
becomes. If the thickness of the anode 3 or the height 13 of the rib 12 changes, the thickness of the gasket 8 will also change.
これ等の単電池構成部品を単に重ね合せると、
イオン交換膜１とゴム製ガスケツト７、イオン交
換膜１とガスケツト８の間には0.1mmの空〓９が
できる。イオン交換膜１、ゴム製ガスケツト７、
ガスケツト８を加圧密着させると、この空〓９の
分だけ陰極２と陽極３に圧力が加わり、イオン交
換膜１、陰極２、陽極３の密着性が向上する。 If these cell components are simply stacked on top of each other,
A gap 9 of 0.1 mm is formed between the ion exchange membrane 1 and the rubber gasket 7, and between the ion exchange membrane 1 and the gasket 8. Ion exchange membrane 1, rubber gasket 7,
When the gasket 8 is pressurized and brought into close contact, pressure is applied to the cathode 2 and anode 3 by the amount of the air space 9, and the adhesion between the ion exchange membrane 1, the cathode 2, and the anode 3 is improved.
第３図は第２図の単電池を加圧した状態の漏液
防止部分を示したものである。ガスケツト８によ
りイオン交換膜１とゴム製ガスケツト７の全面が
加圧され、漏液防止部分の気密性が高くなる。ま
た、このガスケツト８により空気室リブ付き黒鉛
板６のリブ付き黒鉛板６のリブ溝１４があつても
イオン交換膜１とゴム製ガスケツト７の全面を加
圧できる。 FIG. 3 shows the leakage prevention portion of the unit cell shown in FIG. 2 in a pressurized state. The gasket 8 pressurizes the entire surface of the ion exchange membrane 1 and the rubber gasket 7, thereby increasing the airtightness of the leakage prevention portion. Moreover, this gasket 8 allows the entire surface of the ion exchange membrane 1 and the rubber gasket 7 to be pressurized even if the rib grooves 14 of the ribbed graphite plate 6 of the air chamber ribbed graphite plate 6 are present.
上述の本考案によつて構成された積層電池にお
いては、1000時間の連続運転でも漏液防止部分か
らのアノライトの液漏れは無いという効果があつ
た。 The laminated battery constructed according to the present invention described above had the effect that there was no leakage of anolyte from the leakage prevention part even after 1000 hours of continuous operation.
また、第４図に示すように従来の積層電池に見
られたような、イオン交換膜と電極の密着性の低
下が原因となる単電池電圧（放電電流１Ａ）のば
らつきが、本考案によつて構成された積層電池に
は見られず、各単電池電圧が安定するという効果
があつた。 In addition, as shown in Figure 4, the present invention eliminates the variation in cell voltage (discharge current 1A) caused by reduced adhesion between the ion exchange membrane and the electrodes, which was observed in conventional stacked batteries. This has the effect of stabilizing the voltage of each cell, which is not seen in stacked batteries constructed in this way.
第１図は従来の単電池の構成を示す断面図、第
２図は本考案の一実施例におけれ単電池の構成
図、第３図は第２図における漏液防止部分の拡大
断面図、第４図は従来の方法によつて構成された
積層電池と本考案によつて考案された積層電池の
各単電池電圧を示す図である。
１はイオン交換膜、２は陰極、３は陽極、５は
アノライト室リブ付き黒鉛板、６は空気室リブ付
き黒鉛板、７はゴム製ガスケツト、８はプラスチ
ツク製のガスケツト、９は空〓、１０はリブ、１
１はリブ高さ、１２はリブ、１３はリブ高さ、１
４はリブ溝。
Fig. 1 is a sectional view showing the structure of a conventional unit cell, Fig. 2 is a block diagram of a unit cell in an embodiment of the present invention, and Fig. 3 is an enlarged sectional view of the leakage prevention part in Fig. 2. , FIG. 4 is a diagram showing the cell voltages of a stacked battery constructed by a conventional method and a stacked battery constructed according to the present invention. 1 is an ion exchange membrane, 2 is a cathode, 3 is an anode, 5 is a graphite plate with ribs in the anolyte chamber, 6 is a graphite plate with air chamber ribs, 7 is a rubber gasket, 8 is a plastic gasket, 9 is empty, 10 is rib, 1
1 is the rib height, 12 is the rib, 13 is the rib height, 1
4 is a rib groove.
Claims (1)
と、陽極集電体と、弾性枠と、剛性枠とを有する
液体燃料電池であつて、 陰極は、イオン交換膜を介して陽極と相対向し
てなり、 陰極集電体は、液体燃料室を備えるものであ
り、 陽極集電体は、ガス係酸化剤室を備えるもので
あり、 陰極集電体は、陰極の外側面に接してなり、 陽極集電体は、陽極の外側面に接してなり、 弾性枠は、イオン交換膜と陰極集電体間の陰極
外周囲に位置してなり、 剛性枠は、イオン交換膜と陽極集電体間の陽極
外周囲に位置してなり、 前記両枠は、前記両集電体によつて加圧密着さ
れてなる、液体燃料電池。[Claims for Utility Model Registration] A liquid fuel cell comprising a cathode, an anode, an ion exchange membrane, a cathode current collector, an anode current collector, an elastic frame, and a rigid frame, the cathode comprising: facing the anode through an ion exchange membrane, the cathode current collector is provided with a liquid fuel chamber, the anode current collector is provided with a gaseous oxidizer chamber, and the cathode current collector is provided with a gaseous oxidizer chamber. is in contact with the outer surface of the cathode, the anode current collector is in contact with the outer surface of the anode, the elastic frame is located around the outer surface of the cathode between the ion exchange membrane and the cathode current collector, and the elastic frame is rigid. A liquid fuel cell, wherein the frame is located around the outer periphery of the anode between the ion exchange membrane and the anode current collector, and the frames are tightly pressed together by both the current collectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983046373U JPS59152570U (en) | 1983-03-30 | 1983-03-30 | liquid fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983046373U JPS59152570U (en) | 1983-03-30 | 1983-03-30 | liquid fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59152570U JPS59152570U (en) | 1984-10-12 |
| JPH047570Y2 true JPH047570Y2 (en) | 1992-02-27 |
Family
ID=30176927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983046373U Granted JPS59152570U (en) | 1983-03-30 | 1983-03-30 | liquid fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59152570U (en) |
-
1983
- 1983-03-30 JP JP1983046373U patent/JPS59152570U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59152570U (en) | 1984-10-12 |
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