TWI506845B - Water treatment device for fuel cell pack - Google Patents
Water treatment device for fuel cell pack Download PDFInfo
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- TWI506845B TWI506845B TW102126326A TW102126326A TWI506845B TW I506845 B TWI506845 B TW I506845B TW 102126326 A TW102126326 A TW 102126326A TW 102126326 A TW102126326 A TW 102126326A TW I506845 B TWI506845 B TW I506845B
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- fuel cell
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- cell stack
- regulating device
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- 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
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Description
本發明係關於一種用於燃料電池組之水分調節裝置，特別是一種由多孔材料製成之水分調節裝置。The present invention relates to a moisture regulating device for a fuel cell stack, and more particularly to a moisture regulating device made of a porous material.
隨著環保意識高漲，如何在進行能源開發與應用的同時，而不會對環境造成破壞，則是一項重要的課題，使用燃料電池(Fuel cell)技術所產生的能源具有高效率、低噪音、無污染的優點。目前常見的燃料電池有膜電極組型燃料電池(PEMFC)或直接甲醇燃料電池(DMFC)等類型。With the awareness of environmental protection, how to develop and apply energy without causing damage to the environment is an important issue. The energy generated by fuel cell technology has high efficiency and low noise. The advantages of no pollution. Currently common fuel cells are of the type of membrane electrode group fuel cell (PEMFC) or direct methanol fuel cell (DMFC).
不論是哪一種燃料電池，在膜電極組與燃料發生電化學反應時，必定會產生水，這些水可讓膜電極組保持濕潤，以維持其質子傳導性以維持電池之性能。但另一方面，生成過多的水卻可能會阻塞燃料的流道(flow channel)，進而影響燃料的傳遞流速，無法均勻地與膜電極組發生電化學反應，造成燃料電池性能不穩定，因此，流道之設計除了必須使燃料能均勻分佈，也必須能有適當之排水能力，以確保燃料電池的穩定性。Regardless of the fuel cell, when the membrane electrode assembly reacts electrochemically with the fuel, water must be produced, which keeps the membrane electrode assembly moist to maintain its proton conductivity to maintain battery performance. On the other hand, excessive water generation may block the fuel flow channel, which in turn affects the fuel delivery flow rate, and cannot electrochemically react with the membrane electrode assembly uniformly, resulting in unstable fuel cell performance. In addition to the need to evenly distribute the fuel, the design of the flow path must also have adequate drainage capacity to ensure the stability of the fuel cell.
本發明之一目的係在提供一種用於燃 料電池堆之水份調節元件，特別是一種多孔材料製成之水分調節裝置，藉由多孔材料具有之吸水、毛細、擴散、蒸散等特性，達到排除燃料電池組內部過多的水分之效果。One of the objects of the present invention is to provide a method for burning The moisture regulating component of the material stack, in particular, a moisture regulating device made of a porous material, has the effects of removing excessive moisture inside the fuel cell stack by the characteristics of water absorption, capillary, diffusion, evapotranspiration of the porous material.
為達成上述之目的，本發明之用於一燃料電池組之水分調節裝置包括由一多孔材料製成之一第一主體及複數透氣孔，其中第一主體接觸燃料電池單元之一側，且各透氣孔皆貫穿主體。根據本發明之一實施例，第一主體由多孔陶瓷材料製成，且複數透氣孔呈網狀排列結構。In order to achieve the above object, a moisture regulating device for a fuel cell stack of the present invention comprises a first body and a plurality of vent holes made of a porous material, wherein the first body contacts one side of the fuel cell unit, and Each venting hole extends through the body. According to an embodiment of the invention, the first body is made of a porous ceramic material, and the plurality of vent holes are in a mesh-like arrangement.
本發明另提供一種燃料電池組，其係包括至少一燃料電池單元、一水分調節單元、以及流體分配件。水分調節單元包括由一多孔材料製成之一第一主體及複數透氣孔，其中第一主體接觸燃料電池單元之一側且各透氣孔皆貫穿第一主體。The invention further provides a fuel cell stack comprising at least one fuel cell unit, a moisture conditioning unit, and a fluid distribution member. The moisture adjusting unit comprises a first body made of a porous material and a plurality of venting holes, wherein the first body contacts one side of the fuel cell unit and each of the venting holes penetrates the first body.
根據本發明之一實施例，該多孔材料為多孔陶瓷材料，且複數透氣孔呈網狀排列結構。According to an embodiment of the invention, the porous material is a porous ceramic material, and the plurality of vent holes are in a network arrangement.
根據本發明之一實施例，水分調節單元更包括由多孔材料製成之一第二主體，第二主體接觸燃料電池單元之另一側並與流體分配件結合。According to an embodiment of the invention, the moisture conditioning unit further comprises a second body made of a porous material, the second body contacting the other side of the fuel cell unit and being coupled to the fluid distribution member.
1‧‧‧水分調節裝置1‧‧‧Moisture regulator
10‧‧‧第一主體10‧‧‧ first subject
20‧‧‧透氣孔20‧‧‧ venting holes
30‧‧‧第二主體30‧‧‧Second subject
100‧‧‧燃料電池組100‧‧‧ fuel cell stack
110‧‧‧燃料電池單元110‧‧‧ fuel cell unit
120‧‧‧流體分配件120‧‧‧ Fluid distribution parts
A、B‧‧‧箭號A, B‧‧‧ arrows
圖1係使用本發明之水分調節裝之置燃料電池組之結構***圖。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a structural exploded view of a fuel cell stack using the moisture regulating device of the present invention.
圖2係本發明使用本發明之水分調節裝之置燃料電池組之立體示意圖。Fig. 2 is a perspective view showing the fuel cell stack of the present invention using the moisture regulating device of the present invention.
為讓本發明之上述和其他目的、特徵和優點能更明顯易懂，下文特舉出本發明之具體實施例，並配合所附圖式，作詳細說明如下。The above and other objects, features and advantages of the present invention will become more <
以下請一併參考圖1與圖2，以了解本發明之用於一燃料電池組之水分調節裝置的運作細節，其中圖1係使用本發明之水分調節裝之置燃料電池組之結構***圖；圖2係本發明使用本發明之水分調節裝之置燃料電池組之立體示意圖。Hereinafter, please refer to FIG. 1 and FIG. 2 together to understand the operation details of the moisture regulating device for a fuel cell stack of the present invention, wherein FIG. 1 is an exploded view of the structure of the fuel cell stack using the moisture regulating device of the present invention. Fig. 2 is a perspective view showing the fuel cell stack of the present invention using the moisture regulating device of the present invention.
在圖1所示之實施例中，本發明之水分調節裝置1包括第一主體10、複數透氣孔20、以及第二主體30，其中第一主體10與第二主體30皆由多孔陶瓷材料製成，而複數透氣孔20呈網狀排列結構且各透氣孔20皆貫穿第一主體10。在此須注意的是，多孔陶瓷材料只是舉例說明，只要多孔材料具有吸附水份、毛細、擴散、蒸散等特性即為適用材質，本發明不以多孔陶瓷材料例為限。In the embodiment shown in FIG. 1, the moisture regulating device 1 of the present invention comprises a first body 10, a plurality of venting holes 20, and a second body 30, wherein the first body 10 and the second body 30 are both made of a porous ceramic material. The plurality of venting holes 20 have a mesh-like arrangement and each of the venting holes 20 extends through the first body 10. It should be noted here that the porous ceramic material is only an example, as long as the porous material has characteristics such as adsorption of moisture, capillary, diffusion, evapotranspiration, etc., and the present invention is not limited to the porous ceramic material.
如圖1所示本發明之水分調節裝置1係用於燃料電池組100，其中本實施例之燃料電池組100包括一個燃料電池單元110與一個流體分配件120，其中燃料電池單元110的相對兩側分別接觸本發明之水分調節裝置1的第一主體10與第二主體30，且本實施例之第二主體30係以嵌合方式與流體分配件120結合，藉此形成一具有水分調節裝置1之燃料電池單元110。在此需注意的是，第二主體30與流體分配件120結合的方式不以前述實施例為限。The moisture regulating device 1 of the present invention is used in the fuel cell stack 100 as shown in FIG. 1. The fuel cell stack 100 of the present embodiment includes a fuel cell unit 110 and a fluid distribution member 120, wherein the opposite two of the fuel cell units 110 The side is respectively in contact with the first body 10 and the second body 30 of the moisture regulating device 1 of the present invention, and the second body 30 of the embodiment is combined with the fluid dispensing member 120 in a fitting manner, thereby forming a moisture regulating device. 1 fuel cell unit 110. It should be noted here that the manner in which the second body 30 is combined with the fluid distribution member 120 is not limited to the foregoing embodiments.
當具有水分調節裝置1之燃料電池單元110與反應燃料產生化學反應時，外部空氣(主要指的是空氣中的氧氣)係以如圖1中箭號A所示方向 經複數透氣孔20進入燃料電池單元11參與燃料電池單元110與反應燃料產生之電化學反應，而此電化學反應生成的水分會先累積燃料電池單元11的陽極端，當燃料電池單元110持續與反應燃料反應，則反應生成的水會逐漸反滲到陰極端，故燃料電池單元11的兩側都會累積此電化學反應生成的水分。When the fuel cell unit 110 having the moisture regulating device 1 chemically reacts with the reaction fuel, the outside air (mainly referred to as oxygen in the air) is in the direction indicated by an arrow A in FIG. The plurality of venting holes 20 enter the fuel cell unit 11 to participate in an electrochemical reaction between the fuel cell unit 110 and the reaction fuel, and the moisture generated by the electrochemical reaction first accumulates the anode end of the fuel cell unit 11 when the fuel cell unit 110 continues to When the reaction fuel reacts, the water formed by the reaction gradually reverses to the cathode end, so that the water generated by the electrochemical reaction is accumulated on both sides of the fuel cell unit 11.
而如圖1與圖2所示，水分調節裝置1的第一主體10與第二主體30分別設於燃料電池單元110的兩側，所以當燃料電池單元110因持續反應而在料電池單元110兩側累積過多水分時，藉由第一主體10與第二主體30的多孔材料特性，讓水分可直接被第一主體10與第二主體30吸附(圖1與圖2中箭號B所示之方向)，以排除燃料電池單元110因化學反應而產生的過多水分，以維持燃料電池單元110之電池性能。As shown in FIG. 1 and FIG. 2, the first body 10 and the second body 30 of the moisture adjusting device 1 are respectively disposed at two sides of the fuel cell unit 110, so when the fuel cell unit 110 is continuously reacted, the battery unit 110 is in the battery unit 110. When excessive moisture is accumulated on both sides, moisture can be directly adsorbed by the first body 10 and the second body 30 by the porous material characteristics of the first body 10 and the second body 30 (shown by an arrow B in FIGS. 1 and 2). In the direction), excess water generated by the chemical reaction of the fuel cell unit 110 is excluded to maintain the battery performance of the fuel cell unit 110.
此外，利用第一主體10之多孔材料吸附水分，有另一優點就是藉由第一主體10吸附燃料電池單元110反應時產生過多的水分後，就不會發生因為水分持續累積而堵塞複數透氣孔20，造成外部空氣之氧氣無法由複數透氣孔20(圖1與圖2中箭號A所示之方向)進入燃料電池單元110參與電化學反應的問題，以確保電池性能的穩定。In addition, the use of the porous material of the first body 10 to adsorb moisture has another advantage that after the first body 10 adsorbs the fuel cell unit 110 to generate excessive moisture, the water clogging does not occur due to the continuous accumulation of moisture. 20. The oxygen causing the outside air cannot enter the fuel cell unit 110 to participate in the electrochemical reaction by the plurality of vent holes 20 (the direction indicated by the arrow A in Figs. 1 and 2) to ensure the stability of the battery performance.
在此須注意的是，水分調節裝置1的第一主體10與第二主體30的形狀不以圖1與圖2所示之實施例為限。當燃料電池組100包括複數燃料電池單元110時，第一主體10的尺寸可做對應的改變。此外，為與各燃料電池單元110對應，水分調節裝置1中複數透氣孔20的位置也可更動，以便空氣進入， 藉此維持燃料電池單元110反應的穩定。此外，第二主體30的數目也可隨燃料電池單元110的數目更動，以增加本發明之水分調節裝置1以及本發明之具有水分調節裝置1之燃料電池組100的適用性。It should be noted here that the shapes of the first body 10 and the second body 30 of the moisture regulating device 1 are not limited to the embodiment shown in FIGS. 1 and 2. When the fuel cell stack 100 includes the plurality of fuel cell units 110, the size of the first body 10 can be changed accordingly. Further, in order to correspond to each of the fuel cell units 110, the position of the plurality of vent holes 20 in the moisture regulating device 1 can be changed to allow air to enter. Thereby, the stability of the reaction of the fuel cell unit 110 is maintained. Further, the number of the second bodies 30 can also be changed with the number of the fuel cell units 110 to increase the applicability of the moisture regulating device 1 of the present invention and the fuel cell stack 100 of the present invention having the moisture regulating device 1.
綜上所陳，本發明無論就目的、手段及功效，在在均顯示其迥異於習知技術之特徵，為一大突破，懇請 貴審查委員明察，早日賜准專利，俾嘉惠社會，實感德便。惟須注意，上述實施例僅為例示性說明本發明之原理及其功效，而非用於限制本發明之範圍。任何熟於此項技藝之人士均可在不違背本發明之技術原理及精神下，對實施例作修改與變化。本發明之權利保護範圍應如後述之申請專利範圍所述。In summary, the present invention is a breakthrough in terms of its purpose, means and efficacy, and it is different from the characteristics of the prior art. It is a great breakthrough for the reviewer to ask for an early patent, and to benefit the society. Debian. It is to be noted that the above-described embodiments are merely illustrative of the principles of the invention and its advantages, and are not intended to limit the scope of the invention. Modifications and variations of the embodiments can be made by those skilled in the art without departing from the spirit and scope of the invention. The scope of protection of the present invention should be as described in the scope of the patent application to be described later.
100‧‧‧燃料電池組100‧‧‧ fuel cell stack
110‧‧‧燃料電池單元110‧‧‧ fuel cell unit
120‧‧‧流體分配件120‧‧‧ Fluid distribution parts
A‧‧‧箭號A‧‧‧ arrows
1‧‧‧水分調節裝置1‧‧‧Moisture regulator
10‧‧‧第一主體10‧‧‧ first subject
20‧‧‧透氣孔20‧‧‧ venting holes
30‧‧‧第二主體30‧‧‧Second subject
Claims (10)
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| TW102126326A TWI506845B (en) | 2013-07-23 | 2013-07-23 | Water treatment device for fuel cell pack |
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| Application Number | Priority Date | Filing Date | Title |
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| TW102126326A TWI506845B (en) | 2013-07-23 | 2013-07-23 | Water treatment device for fuel cell pack |
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| TW201505247A TW201505247A (en) | 2015-02-01 |
| TWI506845B true TWI506845B (en) | 2015-11-01 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1493092A (en) * | 2001-02-23 | 2004-04-28 | 通用汽车公司 | Stamped bipolar plate for PEM fuel stack |
| WO2011061817A1 (en) * | 2009-11-18 | 2011-05-26 | トヨタ自動車株式会社 | Method for determining the water content state of the cells of a battery, device therefor, method for controlling the water content state of the cells of a battery, device therefor, and battery system |
| CN103155213A (en) * | 2010-09-14 | 2013-06-12 | 罗伯特·博世有限公司 | Battery having reduced condensate formation due to water separation |
-
2013
- 2013-07-23 TW TW102126326A patent/TWI506845B/en active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1493092A (en) * | 2001-02-23 | 2004-04-28 | 通用汽车公司 | Stamped bipolar plate for PEM fuel stack |
| WO2011061817A1 (en) * | 2009-11-18 | 2011-05-26 | トヨタ自動車株式会社 | Method for determining the water content state of the cells of a battery, device therefor, method for controlling the water content state of the cells of a battery, device therefor, and battery system |
| CN103155213A (en) * | 2010-09-14 | 2013-06-12 | 罗伯特·博世有限公司 | Battery having reduced condensate formation due to water separation |
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| TW201505247A (en) | 2015-02-01 |
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