JP4368076B2

JP4368076B2 - Capillary transportation fuel cell

Info

Publication number: JP4368076B2
Application number: JP2001254218A
Authority: JP
Inventors: ▲こう▼先 ▲よ▼; 明杰蔡; 家麟呉; 烈熹羅
Original assignee: Industrial Technology Research Institute ITRI
Current assignee: Industrial Technology Research Institute ITRI
Priority date: 2001-08-24
Filing date: 2001-08-24
Publication date: 2009-11-18
Anticipated expiration: 2021-08-24
Also published as: JP2003077488A

Description

【０００１】
【発明の属する技術分野】
本発明は一種の毛細輸送燃料電池に係り、特に、二つの燃料電池板の間隙が適当な範囲まで小さくされる時に、毛細管とされて燃料輸送の機能を有することを利用して形成された、毛細輸送燃料電池であって、周知の燃料ポンプ輸送の技術の不必要な燃料輸送パイプを減少し、電池体積をマイクロ化した、毛細輸送燃料電池に関する。
【０００２】
【従来の技術】
現代のハイテクノロジー製品中、例えば携帯電話（ｃｅｌｌｕｌａｒｐｈｏｎｅ）、ノートパソコン、ＧＰＳ（ｇｌｏｂａｌｐｏｓｉｔｉｏｎｓｙｓｔｅｍ）、ページャ、ＰＤＡ（ｐｅｒｓｏｎａｌｄｉｇｉｔａｌａｓｓｉｓｔａｎｔ）は、近年のハイテクノロジー製品の普及と市場の競争の激化により、体積の小型化、携帯の利便性が要求されるだけでなく、高機能を有することが求められる。一般の燃料電池は水素ガスと酸素ガスを原料とし、それら高温下で化学反応を発生して電気エネルギーを発生する装置である。燃料の供給と輸送の方面では、酸素ガスは空気より提供され、水素ガスは、メタノール、エタノール、天然ガス等の炭素水素化合物燃料中より取り出され、そのうち、燃料はポンプで燃料電池に送り込まれる。
【０００３】
周知の伝統的な燃料電池反応中、ほとんどがポンプで燃料を輸送管に送り込んで燃料を輸送しているが、現在の日進月歩のハイテクノロジー製品の要求する組成部品の簡素化と体積の小型化に対しては、ポンプで極めて少量の燃料を送り込むのは、制御が容易でなく、且つ技術上の困難を有しうる。
【０００４】
【発明が解決しようとする課題】
ゆえに、本発明の主要な目的は、上述の欠点を解決し、上述の欠点の存在をなくすことにあり、即ち、本発明は毛細輸送燃料電池を提供し、それは、二つの燃料電池板の間隙が適当な範囲まで小さくなった時に、毛細管とされて燃料輸送機能を有することを利用して形成された毛細輸送燃料電池とされ、周知の燃料のポンプ輸送の技術を改善し、並びに不必要な燃料輸送パイプを減少し、電池体積を微小化する。
【０００５】
【課題を解決するための手段】
請求項１の発明は、各燃料電池板が液体燃料面とその反対面の酸素含有気体面を具え、二つの燃料電池板の液体燃料面が対向するよう配置された、二つの燃料電池板と、
二つの対向する燃料電池板の間の間隙が毛細管機能を具備する範囲まで小さくされ、その間隙が１０〜１０００μｍとされ毛管現象による燃料輸送の機能を具備するよう形成された、毛細チャネルと、
毛細チャネルを挟んで対向する二つの燃料電池板の二つの長側及び一つの幅側辺を連接する、三つの液体隔離層と、
を具え、以上で電池ユニットが組成され、複数組の該電池ユニットにより組成されたことを特徴とする、毛細輸送燃料電池としている。
【０００６】
【発明の実施の形態】
上述の目的を達成するため、本発明は一種の毛細輸送燃料電池を提供し、それは、二つの燃料電池板の対向面に、適当な距離の間隙を形成し、該燃料電池板の二面を液体燃料面と酸素含有気体面となし、対向する二つの内側面を燃料に接触する液体燃料面となし、外側面を空気に接触させて酸素含有気体面とし、三つの液体隔離層で二つの対向し適当な間隙を有する燃料電池板の二つの長側辺と一つの幅側辺を連接し、そのうち二つの対向する燃料電池板の間隙が適当な範囲まで小さくなる時に、毛細管と見なされ、燃料輸送機能を有する毛細チャネルを形成する。上述のステップで一つの電池ユニットを組成し、複数の電池ユニットで毛細現象を利用して燃料を輸送する電池を形成し、周知の、ポンプで燃料を輸送する技術の欠点を改善し、並びに不必要な燃料輸送パイプを減少し、電池体積を微小化する。
【０００７】
【実施例】
図１、２及び図３に示されるように、本発明の毛細輸送燃料電池の製造フローは、図１に示されるように、二つの燃料電池板１の対向面に、適当な距離の間隙を形成し、該燃料電池板１の二面は液体燃料面２と酸素含有気体面３とされ、対向する二つの内側面が燃料に接触する液体燃料面２とされ、外側面が空気に接触し酸素含有気体面３とされ、そのうち、二つの燃料電池板１の液体燃料面２が皺状に折られて表面積が増加された平面とされ、二つの対向する燃料電池板１の間隙が適当な範囲に小さくなると、毛細管となり燃料輸送機能を有し、毛細チャネル６を形成する。そのうち、二つの対向する燃料電池板１の間隙範囲は１０〜１０００μｍで、該燃料電池板１の材質は、高分子、シリコンウエハー、金属酸化物とされうる。燃料電池板１の厚さは１０〜１０００μｍとされる。図２に示されるように、三つの液体隔離層５が熱圧、粘着溶接、拡散接合（ｄｉｆｆｕｓｉｏｎｂｏｕｎｄｉｎｇ）方式で対向し適当な間隙を有する二つの燃料電池板１の二つの長側辺及び一つの幅側辺に連接される。該三つの液体隔離層５の機能は燃料電池板の間隙間の液体燃料の漏洩を防止することにあり、その液体隔離層５の材質は、高分子、多孔化金属、多孔化非金属、非金属複合物より選択される。以上で一つの電池ユニット４が組成され、図３に示されるように、複数の電池ユニット４が毛細現象を利用して燃料を輸送する一つの毛細輸送燃料電池を形成し、周知の、ポンプによる燃料輸送の技術を改善し、並びに不必要な燃料輸送パイプを減少し、電池体積を微小化する。
【０００８】
以上の説明は本発明の好ましい実施例に係るものであり、本発明の実施範囲を限定するものではなく、本発明に基づきなしうる細部の修飾或いは改変は、いずれも本発明の請求範囲に属するものとする。
【０００９】
【発明の効果】
本発明は一種の毛細輸送燃料電池を提供し、それは、二つの燃料電池板の対向面に、適当な距離の間隙を形成し、該燃料電池板の二面を液体燃料面と酸素含有気体面となし、対向する二つの内側面を燃料に接触する液体燃料面となし、外側面を空気に接触させて酸素含有気体面とし、三つの液体隔離層で二つの対向し適当な間隙を有する燃料電池板の二つの長側辺と一つの幅側辺を連接し、そのうち二つの対向する燃料電池板の間隙が適当な範囲まで小さくなる時に、毛細管と見なされ、燃料輸送機能を有する毛細チャネルを形成する。上述のステップで一つの電池ユニットを組成し、複数の電池ユニットで毛細現象を利用して燃料を輸送する電池を形成し、周知の、ポンプで燃料を輸送する技術の欠点を改善し、並びに不必要な燃料輸送パイプを減少し、電池体積を微小化する。
【図面の簡単な説明】
【図１】本発明の毛細輸送燃料電池の製造フロー表示図である。
【図２】本発明の毛細輸送燃料電池の製造フロー表示図である。
【図３】本発明の毛細輸送燃料電池の製造フロー表示図である。
【符号の説明】
１燃料電池板
２液体燃料面
３酸素含有気体面
４電池ユニット
５液体隔離層
６毛細チャネル[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a kind of capillary transport fuel cell, and particularly formed by utilizing the function of fuel transport as a capillary when the gap between two fuel cell plates is reduced to an appropriate range. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a capillary transport fuel cell, in which unnecessary fuel transport pipes of known fuel pump transport technology are reduced and the cell volume is micronized.
[0002]
[Prior art]
Among modern high-technology products, for example, cellular phones, laptop computers, GPS (global position systems), pagers, and PDAs (personal digital assistants) have become popular due to the recent spread of high-technology products and intensifying market competition. Not only is the volume required to be small and the convenience of portability required, it is also required to have high functionality. A general fuel cell is an apparatus that uses hydrogen gas and oxygen gas as raw materials and generates electrical energy by generating a chemical reaction at high temperatures. In the direction of fuel supply and transportation, oxygen gas is provided from air, and hydrogen gas is extracted from carbon hydrogen compound fuels such as methanol, ethanol, and natural gas, and the fuel is pumped into the fuel cell.
[0003]
During the well-known traditional fuel cell reaction, most of the fuel is transported by pumping the fuel into the transport pipe, but it is necessary to simplify the component parts and reduce the volume required by the current high-tech products. On the other hand, pumping very small amounts of fuel is not easy to control and may have technical difficulties.
[0004]
[Problems to be solved by the invention]
Therefore, the main object of the present invention is to solve the above-mentioned drawbacks and to eliminate the existence of the above-mentioned disadvantages, i.e. the present invention provides a capillary transport fuel cell, which is a gap between two fuel cell plates. When the fuel cell is reduced to an appropriate range, it is a capillary transport fuel cell that is formed using a capillary and has a fuel transport function, which improves the well-known fuel pumping technology and is unnecessary. Reduce fuel transport pipes and reduce battery volume.
[0005]
[Means for Solving the Problems]
According to the first aspect of the present invention, there are provided two fuel cell plates in which each fuel cell plate has a liquid fuel surface and an oxygen-containing gas surface opposite to the liquid fuel surface, and the liquid fuel surfaces of the two fuel cell plates are opposed to each other. ,
A capillary channel formed such that a gap between two opposing fuel cell plates is reduced to a range having a capillary function, the gap is set to 10 to 1000 μm, and a function of transporting fuel by capillary action is provided.
Three liquid isolation layers connecting two long sides and one width side of two fuel cell plates facing each other across the capillary channel;
The battery unit is composed as described above, and is a capillary transport fuel cell characterized by being composed of a plurality of sets of the battery units.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
In order to achieve the above-mentioned object, the present invention provides a kind of capillary transport fuel cell, which forms a gap of an appropriate distance between the opposing surfaces of two fuel cell plates, and connects the two surfaces of the fuel cell plates. There is no liquid fuel surface and no oxygen-containing gas surface, two opposing inner side surfaces are liquid fuel surfaces that contact the fuel, the outer side is contacted with air to form an oxygen-containing gas surface, and two liquid isolation layers When two long sides and one width side of a fuel cell plate facing each other and having an appropriate gap are connected, and when the gap between two opposing fuel cell plates is reduced to an appropriate range, it is regarded as a capillary tube, A capillary channel having a fuel transport function is formed. One battery unit is composed in the above-mentioned steps, a battery transporting fuel is formed by using a capillary phenomenon in a plurality of battery units, and the drawbacks of the well-known technology for transporting fuel by a pump are improved. Reduce the required fuel transport pipes and reduce battery volume.
[0007]
【Example】
As shown in FIGS. 1, 2 and 3, the manufacturing flow of the capillary transport fuel cell of the present invention is as shown in FIG. 1, with a gap of an appropriate distance between the opposing surfaces of the two fuel cell plates 1. The two surfaces of the fuel cell plate 1 are the liquid fuel surface 2 and the oxygen-containing gas surface 3, the two inner surfaces facing each other are the liquid fuel surfaces 2 in contact with the fuel, and the outer surfaces are in contact with the air. An oxygen-containing gas surface 3 is formed, of which the liquid fuel surface 2 of the two fuel cell plates 1 is bent into a bowl shape to increase the surface area, and the gap between the two opposing fuel cell plates 1 is appropriate. When it becomes smaller in the range, it becomes a capillary tube, has a fuel transport function, and forms a capillary channel 6. Among them, the gap range between the two opposing fuel cell plates 1 is 10 to 1000 μm , and the material of the fuel cell plate 1 can be a polymer, a silicon wafer, or a metal oxide. The thickness of the fuel cell plate 1 is 10 to 1000 μm. As shown in FIG. 2, the three liquid isolation layers 5 are opposed to each other by hot pressure, adhesive welding, diffusion bonding, and have two long sides and one of two fuel cell plates 1 having appropriate gaps. It is connected to two width sides. The function of the three liquid isolation layers 5 is to prevent leakage of liquid fuel in the gaps between the fuel cell plates, and the material of the liquid isolation layer 5 is a polymer, a porous metal, a porous nonmetal, and a nonmetallic composite. It is selected from the thing. Thus, one battery unit 4 is composed, and as shown in FIG. 3, a plurality of battery units 4 form one capillary transport fuel cell that transports fuel using the capillary phenomenon, and is well-known by a pump. Improve fuel transport technology, reduce unnecessary fuel transport pipes, and reduce cell volume.
[0008]
The above description relates to a preferred embodiment of the present invention, and does not limit the scope of the present invention. Any modification or alteration in detail that can be made based on the present invention belongs to the claims of the present invention. Shall.
[0009]
【The invention's effect】
The present invention provides a kind of capillary transport fuel cell, which forms a gap of an appropriate distance between the opposing surfaces of two fuel cell plates, the two surfaces of the fuel cell plate being a liquid fuel surface and an oxygen-containing gas surface. The two inner surfaces facing each other are the liquid fuel surfaces in contact with the fuel, the outer surface is in contact with the air to form an oxygen-containing gas surface, and the fuel has two opposing gaps with three liquid isolation layers. When two long sides and one width side of a battery plate are connected, and the gap between two opposing fuel cell plates is reduced to an appropriate range, a capillary channel that is regarded as a capillary and has a fuel transport function is formed. Form. One battery unit is composed in the above-mentioned steps, a battery transporting fuel is formed by utilizing a capillary phenomenon in a plurality of battery units, and the drawbacks of the well-known pumping fuel transport technology are improved. Reduce the required fuel transport pipes and reduce battery volume.
[Brief description of the drawings]
FIG. 1 is a production flow display diagram of a capillary transportation fuel cell of the present invention.
FIG. 2 is a production flow display diagram of the capillary transportation fuel cell of the present invention.
FIG. 3 is a production flow display diagram of the capillary transportation fuel cell of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fuel cell board 2 Liquid fuel surface 3 Oxygen-containing gas surface 4 Battery unit 5 Liquid isolation layer 6 Capillary channel

Claims

Two fuel cell plates, each fuel cell plate having a liquid fuel surface and an oxygen-containing gas surface opposite to the liquid fuel plate, and arranged such that the liquid fuel surfaces of the two fuel cell plates face each other;
A capillary channel formed such that a gap between two opposing fuel cell plates is reduced to a range having a capillary function, the gap is set to 10 to 1000 μm, and a function of transporting fuel by capillary action is provided.
Three liquid isolation layers connecting two long sides and one width side of two fuel cell plates facing each other across the capillary channel;
A capillary transportation fuel cell comprising the battery unit as described above and a plurality of sets of the battery units.