TWI499120B - Proton exchange membrane fuel cell - Google Patents
Proton exchange membrane fuel cell Download PDFInfo
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- TWI499120B TWI499120B TW101109911A TW101109911A TWI499120B TW I499120 B TWI499120 B TW I499120B TW 101109911 A TW101109911 A TW 101109911A TW 101109911 A TW101109911 A TW 101109911A TW I499120 B TWI499120 B TW I499120B
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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
- Y02E60/10—Energy storage using batteries
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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
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本發明係關於一種質子交換膜燃料電池，特別是一種可使氣體濃度及溫度呈均勻分佈之質子交換膜燃料電池。The present invention relates to a proton exchange membrane fuel cell, and more particularly to a proton exchange membrane fuel cell which can uniformly distribute gas concentration and temperature.
近年來，由於質子交換膜燃料電池具有工作溫度低、快速啟動、產物無污染及高效率等特性，已然成為新式動力系統或攜帶式電源的較佳選擇。特別地，該質子交換膜燃料電池中的流場結構乃是決定氣體於內流動及相互反應的重要關鍵之一，於是多數研究者係致力於流場結構之改良，以期望提升該質子交換膜燃料電池之發電效率。In recent years, proton exchange membrane fuel cells have become the preferred choice for new power systems or portable power sources due to their low operating temperature, fast start-up, non-contamination of products and high efficiency. In particular, the flow field structure in the proton exchange membrane fuel cell is one of the important keys determining the flow and mutual reaction of the gas. Therefore, most researchers are committed to the improvement of the flow field structure in order to enhance the proton exchange membrane. Power generation efficiency of fuel cells.
如吳鴻文等人於2008年所發表「Effects of internal flow modification on the cell performance enhancement of a PEM fuel cell」之論文，其係揭示一種習知電池流道設計，以應用於質子交換膜燃料電池[proton exchange membrane fuel cell,PEMFC]。其中，係於該燃料電池之流道內設置有阻板或矩形塊，藉以於流道內產生氣體阻隔效果，進而增加氣體自流道中進入氣體擴散層之效率，達到提升燃料電池運作性能之功效。For example, Wu Hongwen et al. published an "Effects of internal flow modification on the cell performance enhancement of a PEM fuel cell" in 2008, which discloses a conventional battery flow channel design for use in proton exchange membrane fuel cells [proton] Exchange membrane fuel cell, PEMFC]. Wherein, a gas barrier or a rectangular block is arranged in the flow channel of the fuel cell, thereby generating a gas barrier effect in the flow channel, thereby increasing the efficiency of the gas entering the gas diffusion layer from the flow channel, thereby improving the operation performance of the fuel cell.
惟，該習知電池流道設計中僅單就陰極流道內佈有阻板或矩形塊之情況提出說明，且其內容所述是為二維空間中的假想設計，並未具體呈現阻板或矩形塊於燃料電池之陰、陽極流道內的整體配置。因此，該習知電池流道設計所揭示之內容理當還不足以應用於燃料電池之實際運作，以致現今燃料電池流道內所能產生之氣體阻隔效果顯然不足，始終無法增加氣體自流道中進入氣體擴散層之效率，更無法因此獲得燃料電池的較佳輸出功率及熱效率。However, in the conventional battery flow channel design, only the case where the cathode flow channel is covered with a resisting plate or a rectangular block is described, and the content thereof is a hypothetical design in a two-dimensional space, and the resisting plate is not specifically presented. Or the overall configuration of the rectangular block in the cathode and anode runners of the fuel cell. Therefore, the contents disclosed in the conventional battery flow channel design are not enough to be applied to the actual operation of the fuel cell, so that the gas barrier effect that can be generated in the current fuel cell flow channel is obviously insufficient, and the gas entering the gas channel can never be increased. The efficiency of the diffusion layer makes it impossible to obtain the preferred output power and thermal efficiency of the fuel cell.
換言之，該習知電池流道設計雖揭示有利用阻板或矩形塊設於流道之中，以改變流道中流場型態之概念。然而，該習知電池流道設計僅是為一初步構想，縱使將其應用於燃料電池的實際運作，仍舊與預期之效果具有顯著落差；甚至，由於燃料電池的實際流道細分為入口段、中間段及出口段，且各區段內的氣體流速明顯不同，以致於氣體流動過程往往容易產生氣體濃度及溫度分佈不均之情形，若未對各區段之氣體流速詳加探討，則無法真正改善燃料電池流道中的氣體流場分佈型態，終究不能獲得具有較佳運作性能之燃料電池。In other words, the conventional battery runner design reveals the concept of using a baffle or a rectangular block to be placed in the flow path to change the flow pattern in the flow channel. However, the conventional battery flow channel design is only a preliminary concept, and even if it is applied to the actual operation of the fuel cell, there is still a significant difference from the expected effect; even, since the actual flow path of the fuel cell is subdivided into an inlet section, In the middle section and the outlet section, and the gas flow rates in each section are significantly different, so that the gas flow process tends to cause uneven gas concentration and temperature distribution. If the gas flow rate of each section is not discussed in detail, it cannot be Really improving the gas flow field distribution pattern in the fuel cell flow channel, after all, it is impossible to obtain a fuel cell with better operational performance.
有鑑於此，確實有必要延續上述概念發展一種可使氣體濃度及溫度呈均勻分佈之質子交換膜燃料電池，以適用於燃料電池之實際運作，解決如上所述之各種問題。In view of this, it is indeed necessary to continue the above concept to develop a proton exchange membrane fuel cell which can uniformly distribute gas concentration and temperature, and is suitable for the actual operation of the fuel cell to solve various problems as described above.
本發明主要目的乃改善上述缺點，以提供一種質子交換膜燃料電池，其係能夠使氣體濃度均勻分佈於陰、陽極流道中，以增加氣體間的相互反應效率，且相對提升燃料電池之輸出功率者。The main object of the present invention is to improve the above disadvantages to provide a proton exchange membrane fuel cell capable of uniformly distributing gas concentration in the anode and cathode flow channels to increase the mutual reaction efficiency between gases and to relatively increase the output power of the fuel cell. By.
本發明次一目的係提供一種質子交換膜燃料電池，係能夠提高氣體之熱傳及質傳效率，使氣體溫度均勻分佈於陰、陽極流道中，以相對提升燃料電池之運作性能者。The second object of the present invention is to provide a proton exchange membrane fuel cell which is capable of improving the heat transfer and mass transfer efficiency of a gas, and uniformly distributing the gas temperature in the anode and cathode flow passages to relatively improve the operational performance of the fuel cell.
為達到前述發明目的，本發明之質子交換膜燃料電池，係包含：一陽極板，內部設有相連通的數條陽極流道一陰極板，內部設有相連通的數條陰極流道，該數條陰極流道與該陽極板的數條陽極流道呈相互對應；及一質子交換膜，設於該陽極板與陰極板之間；其中，該陽極流道及陰極流道皆區分有一入口流道、一出口流道及數串流道，該數串流道排列於該入口流道與出口流道之間，該數串流道具有一中央流道，位於該中央流道至出口流道之間的任一條陽極流道及陰極流道內各設有至少一迫使氣體朝該質子交換膜流動之肋條，且該肋條與該陽極流道及該陰極流道間各留有一間距。In order to achieve the foregoing object, the proton exchange membrane fuel cell of the present invention comprises: an anode plate having a plurality of anode flow channels and a cathode plate connected therein, and a plurality of cathode flow channels connected therein are disposed therein. a plurality of cathode flow channels are corresponding to the plurality of anode flow channels of the anode plate; and a proton exchange membrane is disposed between the anode plate and the cathode plate; wherein the anode flow channel and the cathode flow channel respectively have an inlet a flow channel, an outlet flow channel and a plurality of flow channels, the number of flow channels being arranged between the inlet flow channel and the outlet flow channel, the number of flow props having a central flow channel located at the central flow channel to the outlet flow channel At least one rib for forcing a gas to flow toward the proton exchange membrane is disposed in each of the anode flow channel and the cathode flow channel, and a distance is left between the rib and the anode flow channel and the cathode flow channel.
其中，該陽極板內設有之陽極流道總數或陰極板內設有之陰極流道總數皆各定義為N，且N是為單數，該陽極板及陰極板內之中央流道各是指第(N+1)/2條之陽極流道或陰極流道。或者，該陽極板內設有之陽極流道總數或陰極板內設有之陰極流道總數皆各定義為M，且M是為偶數，該陽極板及陰極板內之中央流道各是指自該入口流道起算第M/2條之陽極流道或陰極流道。Wherein, the total number of anode flow channels provided in the anode plate or the total number of cathode flow channels provided in the cathode plate are each defined as N, and N is a single number, and the central flow paths in the anode plate and the cathode plate are each An anode flow path or a cathode flow path of the (N+1)/2th. Alternatively, the total number of anode flow paths provided in the anode plate or the total number of cathode flow channels provided in the cathode plate are each defined as M, and M is an even number, and the central flow paths in the anode plate and the cathode plate are each referred to The anode flow path or the cathode flow path of the M/2th is calculated from the inlet flow path.
其中，該陽極流道及陰極流道之數串流道之間皆各以一支道相接，並以該支道串連該入口流道及出口流道成連續迂迴狀。或者，該陽極流道及陰極流道的部分串流道皆各與該入口流道相連通，該陽極流道及陰極流道的另一部分串流道皆各與該出口流道相連通，且連通該入口流道的部分串流道係與連通該出口流道道的另一部分串流道交錯排列成指叉狀。Wherein, the anode flow channel and the plurality of flow channels of the cathode flow channel are connected by a single channel, and the inlet flow channel and the outlet flow channel are connected in series to form a continuous meandering shape. Or the partial flow channels of the anode flow channel and the cathode flow channel are respectively connected to the inlet flow channel, and the other part of the anode flow channel and the cathode flow channel are respectively connected to the outlet flow channel, and A part of the flow path connecting the inlet flow path and another part of the flow path communicating with the outlet flow path are alternately arranged in a fork shape.
其中，設於該陽極板之陽極流道內的肋條為一個，該陽極板之肋條位於該陽極流道之出口流道內，設於該陰極板之陰極流道內的肋條為一個，該陰極板之肋條位於該陰極流道之出口流道內，該陽極流道內之肋條與陰極流道內之肋條相對應。Wherein, the ribs disposed in the anode flow path of the anode plate are one, the ribs of the anode plate are located in the outlet flow channel of the anode flow channel, and the ribs disposed in the cathode flow channel of the cathode plate are one, the cathode The ribs of the plate are located in the outlet flow path of the cathode flow channel, and the ribs in the anode flow channel correspond to the ribs in the cathode flow channel.
其中，設於該陽極板之陽極流道內的肋條為數個，該陽極板之數肋條位於該陽極流道之出口流道內，設於該陰極板之陰極流道內的肋條為數個，該陰極板之數肋條位於該陰極流道之出口流道內，該陽極流道內之肋條與陰極流道內之肋條相對應。Wherein, a plurality of ribs are disposed in the anode flow channel of the anode plate, and the number of ribs of the anode plate is located in the outlet flow channel of the anode flow channel, and the number of ribs disposed in the cathode flow channel of the cathode plate is plural. The number of ribs of the cathode plate is located in the outlet flow path of the cathode flow channel, and the ribs in the anode flow channel correspond to the ribs in the cathode flow channel.
其中，設於該陽極板之陽極流道內的肋條為一個，該陽極板之肋條位於該陽極流道之中央流道內，設於該陰極板之陰極流道內的肋條為一個，該陰極板之肋條位於該陰極流道之中央流道內，該陽極流道內之肋條與陰極流道內之肋條相對應。Wherein, the ribs disposed in the anode flow path of the anode plate are one, the ribs of the anode plate are located in the central flow channel of the anode flow channel, and the ribs disposed in the cathode flow channel of the cathode plate are one, the cathode The ribs of the plate are located in the central flow path of the cathode flow channel, and the ribs in the anode flow channel correspond to the ribs in the cathode flow channel.
其中，設於該陽極板之陽極流道內的肋條為數個，該陽極板之數肋條位於該陽極流道之中央流道內，設於該陰極板之陰極流道內的肋條為數個，該陰極板之數肋條位於該陰極流道之中央流道內，該陽極流道內之肋條係與陰極流道內之肋條相對應。Wherein, the number of ribs disposed in the anode flow channel of the anode plate is several, the number of ribs of the anode plate is located in the central flow channel of the anode flow channel, and the number of ribs disposed in the cathode flow channel of the cathode plate is several. The number of ribs of the cathode plate is located in the central flow path of the cathode flow channel, and the ribs in the anode flow channel correspond to the ribs in the cathode flow channel.
其中，設於該陽極板之陽極流道內的肋條為二個，該陽極板之二肋條分別位於該陽極流道之中央流道及出口流道內，設於該陰極板之陰極流道內的肋條為二個，該陰極板之二肋條分別位於該陰極流道之中央流道及出口流道內，該陽極流道內之肋條與陰極流道內之肋條相對應。Wherein, the ribs disposed in the anode flow channel of the anode plate are two, and the two ribs of the anode plate are respectively located in the central flow channel and the outlet flow channel of the anode flow channel, and are disposed in the cathode flow channel of the cathode plate The ribs are two, and the two ribs of the cathode plate are respectively located in the central flow channel and the outlet flow channel of the cathode flow channel, and the ribs in the anode flow channel correspond to the ribs in the cathode flow channel.
其中，設於該陽極板之陽極流道內的肋條為數個，該陽極板之數肋條分別佈於該陽極流道之中央流道及出口流道內，設於該陰極板之陰極流道內的肋條為數個，該陰極板之數肋條分別佈於該陰極流道之中央流道及出口流道內，該陽極流道內之肋條係與陰極流道內之肋條相對應。Wherein, a plurality of ribs are disposed in the anode flow channel of the anode plate, and the ribs of the anode plate are respectively disposed in the central flow channel and the outlet flow channel of the anode flow channel, and are disposed in the cathode flow channel of the cathode plate The number of ribs is several, and the ribs of the cathode plate are respectively disposed in the central flow channel and the outlet flow channel of the cathode flow channel, and the ribs in the anode flow channel correspond to the ribs in the cathode flow channel.
此外，該陽極流道及陰極流道各設有一注氣口及一排氣口，該陽極流道之注氣口開設於鄰近該陽極板其一側緣之入口流道，該陽極流道之排氣口則開設於鄰近該陽極板另一側緣之出口流道；該陰極流道之注氣口開設於鄰近該陰極板其一側緣之入口流道，該陰極流道之排氣口則開設於鄰近該陰極板另一側緣之出口流道。In addition, the anode flow channel and the cathode flow channel are respectively provided with a gas injection port and an exhaust port, and the gas injection port of the anode flow channel is opened at an inlet flow channel adjacent to a side edge of the anode plate, and the anode flow channel is exhausted. The opening is opened in an outlet flow channel adjacent to the other side edge of the anode plate; the gas injection port of the cathode flow channel is opened at an inlet flow channel adjacent to a side edge of the cathode plate, and the exhaust port of the cathode flow channel is opened at An outlet flow path adjacent to the other side edge of the cathode plate.
且，該陽極板與質子交換膜之間亦另設一陽極觸媒層及一陽極擴散層，該陽極觸媒層貼於該質子交換膜一側，該陽極擴散層位於陽極觸媒層與陽極板之間；該陰極板與質子交換膜之間另設一陰極觸媒層及一陰極擴散層，該陰極觸媒層貼於該質子交換膜另一側，該陰極擴散層位於陰極觸媒層與陰極板之間。Further, an anode catalyst layer and an anode diffusion layer are further disposed between the anode plate and the proton exchange membrane, and the anode catalyst layer is attached to one side of the proton exchange membrane, and the anode diffusion layer is located at the anode catalyst layer and the anode. Between the plates; a cathode catalyst layer and a cathode diffusion layer are disposed between the cathode plate and the proton exchange membrane, the cathode catalyst layer is attached to the other side of the proton exchange membrane, and the cathode diffusion layer is located at the cathode catalyst layer. Between the cathode plate and the cathode plate.
此外，本發明質子交換膜燃料電池之極板，其內部係設有相連通的數條流道，且該流道區分有一入口流道、一出口流道及數串流道，該數串流道排列於該入口流道與出口流道之間，該數串流道具有一中央流道，位於該中央流道至出口流道之間的任一條流道內各設有至少一迫使氣體朝該質子交換膜流動之肋條。In addition, the electrode plate of the proton exchange membrane fuel cell of the present invention is internally provided with a plurality of flow passages connected to each other, and the flow passage is divided into an inlet flow passage, an outlet flow passage and a plurality of flow passages, and the number of the flow passages The track is arranged between the inlet flow path and the outlet flow path, and the number of flow props has a central flow path, and each of the flow paths between the central flow path and the outlet flow path is provided with at least one forced gas toward the The ribs of the proton exchange membrane flow.
為讓本發明之上述及其他目的、特徵及優點能更明顯易懂，下文特舉本發明之較佳實施例，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 <RTIgt;
請參照第1圖所示，其係為本發明一較佳實施例，該質子交換膜燃料電池係包含一陽極板1、一陰極板2、一質子交換膜3，該質子交換膜3係設於該陽極板1與該陰極板2之間。其中，該質子交換膜燃料電池乃為通常結構配置，且本發明重點在於其中之流道設計，並非組成燃料電池之各構件，故該質子交換膜燃料電池可以是任意由氣體交換而生電者，本文皆以〝燃料電池〞通稱之。Referring to FIG. 1 , which is a preferred embodiment of the present invention, the proton exchange membrane fuel cell comprises an anode plate 1 , a cathode plate 2 , a proton exchange membrane 3 , and the proton exchange membrane 3 is provided. Between the anode plate 1 and the cathode plate 2. Wherein, the proton exchange membrane fuel cell is of a common structural configuration, and the present invention focuses on the design of the flow channel therein, and does not constitute the components of the fuel cell, so the proton exchange membrane fuel cell can be any gas exchanged by a person. This article is known as the 〝 fuel cell.
請續閱第1及2圖所示，該陽極板1內部設有相連通的數條陽極流道11，該數條陽極流道11特別係蝕刻於該陽極板1朝向該質子交換膜3之表面，且該數條陽極流道11之各寬度及深度皆是為1.5毫米為佳。Referring to FIGS. 1 and 2, the anode plate 1 is provided with a plurality of anode flow passages 11 communicating with each other, and the plurality of anode flow passages 11 are particularly etched from the anode plate 1 toward the proton exchange membrane 3. The surface, and each of the plurality of anode flow paths 11 has a width and a depth of 1.5 mm.
該數條陽極流道11各區分有一入口流道111、一出口流道112及數串流道113，該數串流道113排列於該入口流道111與出口流道112之間，該數串流道113具有一中央流道113a。於本實施例中，該陽極流道11還設有一注氣口H1及一排氣口H2，該注氣口H1開設於鄰近該陽極板1其一側緣之入口流道111，用以注入反應氣體〔特別係指氫氣〕；該排氣口H2則開設於鄰近該陽極板1另一側緣之出口流道112，用以排出已反應氣體。其中，該陽極板1之中央流道113a係可以是如下述：當該陽極板1內設有之陽極流道11總數定義為N，且N是為單數時，該陽極板1內之中央流道113a是指第(N+1)/2條之陽極流道 11；或者，當該陽極板1內設有之陽極流道11總數定義為M，且M是為偶數時，該陽極板1內之中央流道113a是指自該入口流道111起算第M/2條之陽極流道11。Each of the plurality of anode flow channels 11 is divided into an inlet flow channel 111, an outlet flow channel 112, and a plurality of flow channels 113. The number of flow channels 113 are arranged between the inlet flow channel 111 and the outlet flow channel 112. The stream passage 113 has a central flow passage 113a. In the embodiment, the anode flow channel 11 is further provided with a gas injection port H1 and an exhaust port H2. The gas injection port H1 is opened in the inlet flow channel 111 adjacent to one side edge of the anode plate 1 for injecting a reaction gas. [Specially refers to hydrogen]; the exhaust port H2 is opened in the outlet flow path 112 adjacent to the other side edge of the anode plate 1 for discharging the reacted gas. The central flow path 113a of the anode plate 1 may be as follows: when the total number of anode flow paths 11 provided in the anode plate 1 is defined as N, and N is a single number, the central flow in the anode plate 1 Lane 113a refers to the anode flow path of the (N+1)/2th 11; or, when the total number of anode flow paths 11 provided in the anode plate 1 is defined as M, and M is an even number, the central flow path 113a in the anode plate 1 means the first M from the inlet flow path 111. /2 anode flow path 11.
再者，該陽極流道11之數串流道113之間各以一支道114相連接，並以該支道114串連該入口流道111及出口流道112成連續迂迴狀，特別係如第2圖圖面所示，該陽極流道11可呈一連續蜿蜒且迂迴之蛇型流道。In addition, the plurality of channels 113 of the anode flow channel 11 are connected by a single channel 114, and the inlet channel 111 and the outlet channel 112 are connected in series to form a continuous meandering shape. As shown in the second drawing, the anode flow path 11 can be a continuous meandering and meandering serpentine flow path.
承上述，位於該中央流道113a至出口流道112之間的任一條陽極流道11內各設有至少一肋條12，該肋條12用以改變該陽極流道11內之流場型態，進而迫使氣體可朝該質子交換膜3流動。其中，當該陽極板1之肋條12選擇如第2圖所示，同時設於該陽極流道11之中央流道113a及出口流道112之內時，該中央流道113a及出口流道112內之肋條12數量可以選擇各為一個或各為數個，且該數個肋條12之間的間距較佳係為3.3~7.125毫米。藉此，遂可透過該肋條12的阻擋，以迫使氣體大量朝該質子交換膜3集中流動。特別地，該肋條12可以利用放電加工法與該陽極流道11一體成型，且該肋條12與陽極流道11間留有適當間距，尤其係如第3圖所示，該肋條12設於該陽極流道11中央位置，且與上方、下方各間距0.0075~0.45毫米為佳。藉此，遂能透過氣體流經該些間距所產生之間隙流，而迫使更多氣體朝該質子交換膜3方向流動，以提升氣體間相互作用之效率，相對提升燃料電池之運作性能。In the above, any one of the anode flow passages 11 between the central flow passage 113a and the outlet flow passage 112 is provided with at least one rib 12 for changing the flow field type in the anode flow passage 11. Further, the gas is forced to flow toward the proton exchange membrane 3. Wherein, when the rib 12 of the anode plate 1 is selected as shown in FIG. 2 and is disposed in the central flow path 113a and the outlet flow path 112 of the anode flow path 11, the central flow path 113a and the outlet flow path 112 are selected. The number of the inner ribs 12 may be selected to be one or several, and the spacing between the plurality of ribs 12 is preferably 3.3 to 7.125 mm. Thereby, the crucible can be blocked by the ribs 12 to force a large amount of gas to flow toward the proton exchange membrane 3 in a concentrated manner. In particular, the rib 12 can be integrally formed with the anode flow path 11 by an electric discharge machining method, and an appropriate distance is left between the rib 12 and the anode flow path 11, in particular, as shown in FIG. 3, the rib 12 is disposed on the rib 12 The anode flow path 11 is centrally located, and the pitch between the upper and lower sides is preferably 0.0075 to 0.45 mm. Thereby, the gas can flow through the gap flow generated by the intervals, forcing more gas to flow toward the proton exchange membrane 3, thereby improving the efficiency of the gas interaction and relatively improving the operational performance of the fuel cell.
甚者，該陽極流道11內之肋條12亦可選擇以下述型態進行配置，以同樣可迫使氣體朝該質子交換膜3方向流 動，進而增加氣體作用效率為較佳原則。請參閱第4a至4d圖所示，當設於該陽極流道11內之肋條12為一個時，該陽極板1之肋條12可以選擇位於該陽極流道11之出口流道112內〔詳如第4a圖所示〕；或者，該陽極板1之肋條12亦可以選擇位於該陽極流道11之中央流道113a內〔詳如第4b圖所示〕。再者，當設於該陽極流道11內之肋條12為數個時，該陽極板1之肋條12係可以選擇如前所述，位於該陽極流道11之出口流道112〔詳如第4c圖所示〕或中央流道113a〔詳如第4d圖所示〕內。Moreover, the ribs 12 in the anode flow path 11 can also be selectively configured in such a manner as to force the gas to flow toward the proton exchange membrane 3 It is a better principle to increase the efficiency of gas action. Referring to Figures 4a to 4d, when the rib 12 provided in the anode flow path 11 is one, the rib 12 of the anode plate 1 can be selectively located in the outlet flow path 112 of the anode flow path 11 (for example, Alternatively, the rib 12 of the anode plate 1 may be located in the central flow path 113a of the anode flow path 11 (as shown in Fig. 4b). Furthermore, when there are a plurality of ribs 12 disposed in the anode flow path 11, the rib 12 of the anode plate 1 can be selected as described above, and is located at the outlet flow path 112 of the anode flow path 11 (detailed as 4c). The figure is shown in the figure or the central flow path 113a (shown in detail in Figure 4d).
請再參閱第1及2圖所示，該陰極板2內部設有相連通的數條陰極流道21，該數條陰極流道21與該陽極板1的數條陽極流道11呈相互對應。且，該數條陰極流道21特別係蝕刻於該陰極板2朝向該質子交換膜3之表面，且該數條陰極流道21之各寬度及深度皆是為1.5毫米為佳。Referring to FIGS. 1 and 2 again, the cathode plate 2 is internally provided with a plurality of cathode channels 21 communicating with each other, and the plurality of cathode channels 21 and the plurality of anode channels 11 of the anode plate 1 correspond to each other. . Moreover, the plurality of cathode channels 21 are particularly etched on the surface of the cathode plate 2 facing the proton exchange membrane 3, and each of the plurality of cathode channels 21 has a width and a depth of 1.5 mm.
注意的是，該陰極板2之陰極流道21的配置態樣皆相對應於該陽極板1之陽極流道11的配置態樣，此處容不再如上加以贅述，僅以簡單說明之。It is noted that the arrangement of the cathode runners 21 of the cathode plate 2 corresponds to the arrangement of the anode runners 11 of the anode plate 1, and the details of the anode runners 11 of the anode plates 1 are not described above, but are briefly described.
該數條陰極流道21同樣各區分有一入口流道211、一出口流道212及數串流道213，該數串流道213排列於該入口流道211與出口流道212之間，該數串流道213具有一中央流道213a。於本實施例中，該陰極流道21亦設一注氣口H1’及一排氣口H2’，該注氣口H1’開設於鄰近該陰極板2其一側緣之入口流道211，用以注入反應氣體〔特別係指氧氣〕；該排氣口H2’則開設於鄰近該陰極板2另一側緣之出口流道212，用以排出已反應氣體。其中，界 定該陰極板2之中央流道213a之條件，係相同於界定該陽極板1之中央流道113a之條件，於此不再重複贅述。The plurality of cathode channels 21 are also respectively defined with an inlet flow channel 211, an outlet flow channel 212, and a plurality of flow channels 213. The number of flow channels 213 are arranged between the inlet flow channel 211 and the outlet flow channel 212. The number of flow paths 213 has a central flow path 213a. In this embodiment, the cathode flow channel 21 is also provided with a gas injection port H1' and an exhaust port H2'. The gas injection port H1' is opened at an inlet flow channel 211 adjacent to a side edge of the cathode plate 2 for The reaction gas (in particular, oxygen) is injected; the exhaust port H2' is opened at the outlet flow path 212 adjacent to the other side edge of the cathode plate 2 for discharging the reacted gas. Among them The conditions of the central flow path 213a of the cathode plate 2 are the same as those for defining the central flow path 113a of the anode plate 1, and the detailed description thereof will not be repeated here.
再者，該陰極流道21之數串流道213之間亦各以一支道214相連接，並以該支道214串連該入口流道211及出口流道212成連續迂迴狀，特別係如第2圖圖面所示，該陰極流道21亦可呈相對應該陽極流道11的一連續蜿蜒且迂迴之蛇型流道為較佳。In addition, the plurality of channels 213 of the cathode channel 21 are also connected by a channel 214, and the inlet channel 211 and the outlet channel 212 are connected in series to form a continuous meandering shape. As shown in the second drawing, the cathode flow path 21 may also be a continuous meandering serpentine flow path corresponding to the anode flow path 11.
承上述，位於該陰極板2之中央流道213a至出口流道212之間的任一條陰極流道21內亦各設有至少一肋條22，該肋條22用以改變該陰極流道21內之流場型態，進而迫使氣體可朝該質子交換膜3流動。同樣地，當該陰極板2之肋條22選擇如第2圖所示，同時設於該陰極流道21之中央流道213a及出口流道212之內時，該中央流道213a及出口流道212內之肋條22數量可以選擇各為一個或各為數個，且該陰極流道21內之肋條22係與該陽極流道11內之肋條12相互對應，其中該數個肋條22之間的間距較佳亦為3.3~7.125毫米。藉此，遂可同時透過該陰極流道21及陽極流道11內相對應之肋條22、12阻擋，以迫使氣體大量朝該質子交換膜3集中流動，並使得分別流通於該陽極流道11及陰極流道21內之氣體產生相互作用，以增加氣體間之作用效率為佳。其中，該陰極流道21內之肋條22係相同於該陽極流道1內之肋條11，亦如第3圖所示，該肋條22係與該陰極流道21間留有適當間距為原則，亦不再此重複贅述之。In the above, any one of the cathode flow channels 21 between the central flow path 213a and the outlet flow path 212 of the cathode plate 2 is also provided with at least one rib 22 for changing the inside of the cathode flow path 21. The flow field pattern, in turn, forces gas to flow toward the proton exchange membrane 3. Similarly, when the rib 22 of the cathode plate 2 is selected as shown in FIG. 2 and is disposed in the central flow path 213a and the outlet flow path 212 of the cathode flow path 21, the central flow path 213a and the outlet flow path are simultaneously selected. The number of the ribs 22 in the 212 may be selected to be one or several, and the ribs 22 in the cathode flow path 21 correspond to the ribs 12 in the anode flow path 11, wherein the spacing between the plurality of ribs 22 It is preferably also 3.3 to 7.125 mm. Thereby, the crucible can be simultaneously blocked by the corresponding ribs 22, 12 in the cathode flow channel 21 and the anode flow channel 11 to force a large amount of gas to flow toward the proton exchange membrane 3, and to flow to the anode flow channel 11 respectively. The gas in the cathode flow path 21 interacts to increase the efficiency of interaction between the gases. The rib 22 in the cathode flow channel 21 is the same as the rib 11 in the anode flow channel 1. As shown in FIG. 3, the rib 22 is spaced from the cathode flow channel 21 by a proper spacing. This is not repeated here.
更甚者，該陰極流道21內之肋條22亦可選擇如第4a 至4d圖所示之配置型態，以能相對應於該陽極流道11內之肋條12為主要原則，不再重複如上之說明。換言之，熟習該技藝之人士係可參閱第4a至4d圖之型態說明，輕易思及該陰極流道21內的肋條22配置，並於相對應該陽極流道11之前提下，任意選擇適當的配置型態，以依詢本發明之技術範疇，達到增加氣體間作用效率之功效。Moreover, the rib 22 in the cathode flow path 21 can also be selected as the 4a The configuration shown in Fig. 4d is based on the rib 12 corresponding to the inside of the anode flow path 11, and the above description will not be repeated. In other words, those skilled in the art can refer to the description of the figures in Figures 4a to 4d, and easily consider the arrangement of the ribs 22 in the cathode flow path 21, and lift it off before the anode flow path 11 is correspondingly, and arbitrarily select an appropriate one. The configuration type is used to increase the efficiency of interaction between gases in accordance with the technical scope of the present invention.
請一併參閱第1及3圖所示，該質子交換膜3設於該陽極板1與陰極板2之間，用以通透氣體。於本實施例中，為完成本發明質子交換膜燃料電池之基本配置，該質子交換膜3與陽極板1之間還另設一陽極觸媒層4及一陽極擴散層5，該陽極觸媒層4貼於該質子交換膜3一側，該陽極擴散層5位於陽極觸媒層4與陽極板1之間；且，該質子交換膜3與陰極板2之間亦另設一陰極觸媒層4’及一陰極擴散層5’，該陰極觸媒層4’貼於該質子交換膜3另一側，該陰極擴散層5’位於陰極觸媒層4’與陰極板2之間。藉此，遂能使氣體均勻擴散於該陽極及陰極擴散層5、5’後，隨之進入於該陽極及陰極觸媒層4、4’之中，以由觸媒作用而可增加氣體間的相互反應效率。Referring to FIGS. 1 and 3 together, the proton exchange membrane 3 is disposed between the anode plate 1 and the cathode plate 2 for passing through a gas permeable body. In the present embodiment, in order to complete the basic configuration of the proton exchange membrane fuel cell of the present invention, an anode catalyst layer 4 and an anode diffusion layer 5 are further disposed between the proton exchange membrane 3 and the anode plate 1, and the anode catalyst is provided. The layer 4 is attached to the side of the proton exchange membrane 3, and the anode diffusion layer 5 is located between the anode catalyst layer 4 and the anode plate 1; and a cathode catalyst is further disposed between the proton exchange membrane 3 and the cathode plate 2. The layer 4' and a cathode diffusion layer 5' are attached to the other side of the proton exchange membrane 3, and the cathode diffusion layer 5' is located between the cathode catalyst layer 4' and the cathode plate 2. Thereby, the gas can be uniformly diffused to the anode and cathode diffusion layers 5, 5', and then enters the anode and cathode catalyst layers 4, 4' to increase the gas between the catalysts. The efficiency of mutual reaction.
為證實依據本發明上述技術範疇，確實可具有提升燃料電池運作性能之功效。於下，係針對肋條12、22的不同配置型態及數量進行實驗及數值計算分析，以將詳細結果呈現於第5至7圖。其中，本實施例選用之流道總數為17條〔即陽極流道11及陰極流道21各為17條〕，故該陽極板1及陰極板2之中央流道113a、213a皆視為第9條。注意地，該陽極流道11與陰極流道21呈相對應設置，以下 僅就〝流道〞簡稱之，並不再特別予以標號。In order to confirm the above technical scope according to the present invention, it is indeed possible to have an effect of improving the operational performance of the fuel cell. In the following, experimental and numerical calculations are performed for different configurations and quantities of the ribs 12 and 22 to present detailed results in Figures 5 to 7. The total number of flow channels selected in the embodiment is 17 (that is, the anode flow channel 11 and the cathode flow channel 21 are each 17), so the central flow paths 113a and 213a of the anode plate 1 and the cathode plate 2 are regarded as the first 9 articles. Note that the anode flow path 11 and the cathode flow path 21 are correspondingly arranged, below Only the turbulent flow path is abbreviated and is not specifically labeled.
如第5圖所示，其係分別於第1條〔即入口流道，見第5圖標示之a〕、第4條〔見第5圖標示之b〕、第9條〔即中央流道，見第5圖標示之c〕、第14條〔見第5圖標示之d〕、第17條〔即出口流道，見第5圖標示之e〕及第9、17條〔見第5圖標示之f〕流道內設有肋條，以通入氫、氧氣體後，測得該燃料電池之電流密度，圖中標示為N代表未設肋條。其結果顯示，於該第1及4條流道內加入肋條所測得之電池密度反而降低；惟，在該第9條流道內加入肋條，其電池密度會比無肋條之情況略為增加，乃是因為此處無肋條時電流密度迅速衰減，故於肋條之阻擋下，遂可迫使氣體朝該質子交換膜方向流動，以增加氣體間的反應效率，進而有助於提升此處之電流密度；再者，於第14及17條流道內加入肋條，皆能大幅提升電流密度。由此證明，於第9至17條〔即該中央流道至出口流道〕之間的任一條流道內設置肋條，確實可提升燃料電池之運作性能。其中，更以第9及17條流道內同時設有肋條時之電流密度具有較顯著之提升。As shown in Figure 5, it is respectively in the first article (ie, the inlet runner, see the fifth icon a), the fourth article (see the fifth icon b), the ninth article (the central runner) See the fifth icon c], the 14th (see the fifth icon d), the 17th (ie the exit flow, see the 5th icon e) and the 9th and 17th [see section 5 The figure indicates that f] is provided with ribs in the flow path to measure the current density of the fuel cell after introducing hydrogen and oxygen gas. The figure indicates that N represents no ribs. The results show that the density of the cells measured by adding ribs to the first and fourth flow channels is rather reduced; however, the ribs are added to the ninth flow path, and the battery density is slightly increased compared with the case without ribs. However, because the current density is rapidly attenuated without ribs, the ruthenium can force the gas to flow toward the proton exchange membrane under the ribs to increase the reaction efficiency between the gases, thereby helping to increase the current density here. Furthermore, the addition of ribs to the 14th and 17th flow channels can greatly increase the current density. This proves that the provision of ribs in any of the flow paths between the 9th and 17th (ie, the central flow path to the outlet flow path) can indeed improve the operational performance of the fuel cell. Among them, the current density of the ribs in the 9th and 17th flow channels has a significant increase.
如第6圖所示，其係分別於第1條〔即入口流道，見第6圖標示之a〕、第9條〔即中央流道，見第6圖標示之c〕、第14條〔見第6圖標示之d〕及第17條〔即出口流道，見第6圖標示之e〕〕流道內設複數肋條，以通入氫、氧氣體後，測得該燃料電池之電流密度，圖中標示為N代表未設肋條。其結果顯示，於該第1條流道內增設肋條時，測得電池之電流密度係隨肋條數量增加而下降，甚 至更低於無肋條之流道；惟，當在第9條流道內增設肋條時，測得電池之電流密度係隨肋條數量增加，而相對呈現微幅增加，更以在第14及17條流道內增設肋條時，測得電池之電流密度具有顯著之提升。再者，如第7圖所示，其係分別於第1條〔即入口流道，見第7圖標示之a〕、第9條〔即中央流道，見第7圖標示之c〕、第14條〔見第7圖標示之d〕及第17條〔即出口流道，見第7圖標示之e〕流道內設單一肋條，以同樣通入氫、氧氣體後，測得該燃料電池之電流密度，圖中標示為N代表未設肋條。其結果顯示係與第6圖相雷同，亦以在第14及17條流道內增設肋條時，測得電池之電流密度具有顯著之提升。As shown in Figure 6, it is respectively in Article 1 (ie, the inlet flow path, see the figure a), Article 9 (ie, the central flow channel, see the icon of the sixth icon), Article 14 [See the figure shown in Figure 6] and Article 17 (ie, the outlet flow channel, see the figure e in Figure 6). The ribs are provided in the flow channel to pass the hydrogen and oxygen gas, and the fuel cell is measured. Current density, indicated by N in the figure, means no ribs. The results show that when ribs are added to the first flow channel, the current density of the battery decreases as the number of ribs increases. To the lower ribless flow path; however, when ribs are added to the ninth flow path, the current density of the battery is measured as the number of ribs increases, and the relative increase is slightly increased, even in the 14th and 17th. When ribs are added to the flow path, the current density of the battery is significantly improved. Furthermore, as shown in Fig. 7, it is respectively in the first article (i.e., the inlet flow path, see the seventh icon a), the ninth article (the central flow channel, see the seventh icon c), Article 14 (see the figure d in Figure 7) and Article 17 (ie, the outlet flow channel, see e in Figure 7), a single rib is provided in the flow channel, and the hydrogen and oxygen gases are also introduced. The current density of the fuel cell, indicated as N in the figure, represents no ribs. The results show that it is similar to Figure 6, and the current density of the battery is significantly improved when ribs are added to the 14th and 17th flow channels.
經第6及7圖所示，係可證明於第9至17條〔即該中央流道至出口流道〕之間的任一條流道內設置肋條時，無論肋條數量之多寡，測得電池之電流密度皆有顯著性的提升。由此證實，依詢本發明上述技術範疇，於該中央流道至出口流道之間的任一條流道內各設有至少一肋條，係能有效迫使氣體朝該質子交換膜方向流動，進而增加氣體間的反應效率，達到提升燃料電池運作性能之功效。As shown in Figures 6 and 7, it can be proved that when ribs are provided in any of the flow paths between clauses 9 to 17 (i.e., the central flow path to the outlet flow path), the battery is measured regardless of the number of ribs. The current density is significantly improved. It is thus confirmed that, according to the above technical scope of the present invention, at least one rib is disposed in each of the flow passages between the central flow passage and the outlet flow passage, which can effectively force the gas to flow toward the proton exchange membrane, thereby further Increase the efficiency of reaction between gases to improve the performance of fuel cells.
除上述迂迴狀之流道型態外，本發明還可依據相同技術範疇，應用於其他型態之流道設計中。如第8及9圖所示，該陽極流道11及陰極流道21的部分串流道113、213皆可選擇各與該入口流道111、211相連通，該陽極流道11及陰極流道21的另一部分串流道113、213皆可選擇各與該出口流道112、212相連通，且連通該入口流道111、211的部分串流道113、213係與連通該出口流道112、212 的另一部分串流道113、213交錯排列成指叉狀。In addition to the above-described meandering flow path type, the present invention can also be applied to other types of flow path design according to the same technical scope. As shown in FIGS. 8 and 9, the partial flow paths 113 and 213 of the anode flow path 11 and the cathode flow path 21 may be selectively connected to the inlet flow paths 111 and 211, and the anode flow path 11 and the cathode flow may be selected. The other part of the stream passages 113, 213 of the passage 21 may be selectively connected to the outlet flow passages 112, 212, and the partial flow passages 113, 213 communicating with the inlet flow passages 111, 211 are connected to and communicate with the outlet flow passages. 112, 212 The other portion of the stream passages 113, 213 are staggered to form a fork.
其中，該肋條12、22係可如第9圖所示，設在與該出口流道112、212相連道之串流道113、213內；或者，該肋條12、22亦可如第10a圖所示，設在與該入口流道111、211相連道之串流道113、213內；甚至，該肋條12、22更可如第10b圖所示，設在與該出口流道112、212相連道之任二串流道113、213內。特別還可如前實施例所述，設在該中央流道113a、213a至出口流道112、212之間的任一條陽極流道11或陰極流道21內為佳。The ribs 12 and 22 may be disposed in the flow paths 113 and 213 of the roads connected to the outlet flow paths 112 and 212 as shown in FIG. 9; alternatively, the ribs 12 and 22 may also be as shown in FIG. 10a. As shown, it is disposed in the flow passages 113, 213 of the roads connected to the inlet flow passages 111, 211; even the ribs 12, 22 may be disposed in the outlet flow passages 112, 212 as shown in Fig. 10b. The two channels are connected to the two channels 113, 213. In particular, it may be preferable to provide any of the anode flow paths 11 or the cathode flow paths 21 between the central flow passages 113a, 213a to the outlet flow passages 112, 212 as described in the previous embodiment.
於此，依據上述第9、10a及10b圖的不同配置型態〔對應第11圖所示之C1、C2及C3〕，針對肋條12、22之配設位置及數量〔該肋條數量分別為1、3、5、7、8及9〕，進行實驗及數值計算分析，以將詳細結果呈現於第11至12圖，圖中標示為N代表未設肋條。本實施例所選用之流道總數亦為17條〔即陽極流道11及陰極流道21各為17條〕，以下僅就〝流道〞簡稱之，並不再特別予以標號。Here, according to the different configuration types of the above-mentioned 9, 10a and 10b diagrams (corresponding to C1, C2 and C3 shown in FIG. 11), the arrangement positions and the number of the ribs 12 and 22 (the number of the ribs is 1 respectively) , 3, 5, 7, 8, and 9], perform experimental and numerical calculations to present detailed results in Figures 11 through 12, where N is indicated as no ribs. The total number of flow paths selected for this embodiment is also 17 (i.e., 17 for each of the anode flow path 11 and the cathode flow path 21). Hereinafter, only the flow path 〞 is simply referred to and is not particularly labeled.
由第11及12圖之結果顯示可知，隨流道中增設之肋條數量增加，測得電池之電流密度亦隨之提升；且，無論肋條於指叉狀流道中的配置型態為何，相較於無設置肋條之流道，測得電池之電流密度皆有微幅增加，其中更以第8條流道內設有8個肋條時，測得電池之電流密度具有較為顯著之提升。據此，同樣可證實依循本發明上述技術範疇，應用於指叉狀之流道時，肋條設計仍能具有迫使氣體朝該質子交換膜方向流動，進而增加氣體間之反應效率，以達到提升燃料電池運作性能之功效。As can be seen from the results of Figures 11 and 12, as the number of ribs added in the flow channel increases, the current density of the battery is also increased; and, regardless of the configuration of the ribs in the interdigitated flow path, There is no ribbed flow channel, and the current density of the battery is slightly increased. Among them, when there are 8 ribs in the 8th flow channel, the current density of the battery is significantly improved. Accordingly, it can also be confirmed that according to the above technical scope of the present invention, when applied to the fork-shaped flow path, the rib design can still force the gas to flow toward the proton exchange membrane, thereby increasing the reaction efficiency between the gases to achieve fuel enhancement. The efficacy of battery performance.
綜上所述，本發明質子交換膜燃料電池之主要特徵在於：透過於該中央流道至出口流道之間的任一條流道內各設有至少一肋條，係能夠迫使氣體朝該質子交換膜方向流動，以使氣體濃度均勻分佈於陰、陽極流道中，進而增加氣體於該陽極及陰極觸媒層的相互反應效率，達到提升燃料電池輸出功率之功效。甚至，藉由該肋條之阻擋遂能輕易改變該陰、陽極流道中之流場型態，以有效提高氣體流通於其中之熱傳及質傳效率，使得氣體溫度能均勻分佈於該陰、陽極流道之中，進而提升燃料電池之電流產出密度，以獲得具有較佳運作性能之燃料電池。In summary, the main feature of the proton exchange membrane fuel cell of the present invention is that at least one rib is disposed in each of the flow passages between the central flow passage and the outlet flow passage, and the gas can be forced to exchange the protons. The film flows in the direction of the film so that the gas concentration is evenly distributed in the anode and cathode flow channels, thereby increasing the mutual reaction efficiency of the gas in the anode and cathode catalyst layers, thereby improving the output power of the fuel cell. Even the flow field pattern in the cathode and anode flow channels can be easily changed by the barrier ribs of the ribs, so as to effectively improve the heat transfer and mass transfer efficiency of the gas flowing therein, so that the gas temperature can be uniformly distributed to the cathode and the anode. In the flow path, the current output density of the fuel cell is further increased to obtain a fuel cell having better operational performance.
雖然本發明已利用上述較佳實施例揭示，然其並非用以限定本發明，任何熟習此技藝者在不脫離本發明之精神和範圍之內，相對上述實施例進行各種更動與修改仍屬本發明所保護之技術範疇，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.
1‧‧‧陽極板1‧‧‧Anode plate
11‧‧‧陽極流道11‧‧‧Anode flow path
111‧‧‧入口流道111‧‧‧Inlet runner
112‧‧‧出口流道112‧‧‧Export flow channel
113‧‧‧串流道113‧‧‧Skewer
113a‧‧‧中央流道113a‧‧‧Central runner
114‧‧‧支道114‧‧‧Support
12‧‧‧肋條12‧‧‧ Ribs
2‧‧‧陰極板2‧‧‧ cathode plate
21‧‧‧陰極流道21‧‧‧ Cathode runner
211‧‧‧入口流道211‧‧‧inlet runner
212‧‧‧出口流道212‧‧‧Export runner
213‧‧‧串流道213‧‧‧Chassis
213a‧‧‧中央流道213a‧‧‧Central runner
214‧‧‧支道214‧‧‧
22‧‧‧肋條22‧‧‧ Ribs
3‧‧‧質子交換膜3‧‧‧Proton exchange membrane
4‧‧‧陽極觸媒層4‧‧‧Anode catalyst layer
4’‧‧‧陰極觸媒層4'‧‧‧ Cathode Catalyst Layer
5‧‧‧陽極擴散層5‧‧‧Anode diffusion layer
5’‧‧‧陽極觸媒層5'‧‧‧Anode catalyst layer
H1、H1’‧‧‧注氣口H1, H1’‧‧‧ gas injection port
H2、H2’‧‧‧排氣口H2, H2’‧‧ vent
第1圖：本發明質子交換膜燃料電池之立體分解圖。Fig. 1 is a perspective exploded view of a proton exchange membrane fuel cell of the present invention.
第2圖：本發明質子交換膜燃料電池之平面示意圖。Figure 2 is a schematic plan view of a proton exchange membrane fuel cell of the present invention.
第3圖：本發明質子交換膜燃料電池之平面示意圖。Figure 3 is a schematic plan view of a proton exchange membrane fuel cell of the present invention.
第4a~4d圖：本發明質子交換膜燃料電池之配置型態圖。Figures 4a to 4d are diagrams showing the configuration of a proton exchange membrane fuel cell of the present invention.
第5圖：本發明之電流密度分析圖一。Figure 5: Current density analysis of the present invention.
第6圖：本發明之電流密度分析圖二。Figure 6: Current density analysis of the present invention is shown in Figure 2.
第7圖：本發明之電流密度分析圖三。Figure 7: Current density analysis of Figure 3 of the present invention.
第8圖：本發明另一型態之立體分解圖。Figure 8 is a perspective exploded view of another version of the present invention.
第9圖：本發明另一型態之平面示意圖。Figure 9 is a plan view showing another form of the invention.
第10a~10b圖：本發明質子交換膜燃料電池之配置型態圖。Figures 10a-10b: Configuration views of the proton exchange membrane fuel cell of the present invention.
第11圖：本發明之電流密度分析圖一。Figure 11: Current density analysis of the present invention.
第12圖：本發明之電流密度分析圖二。Figure 12: Current density analysis of Figure 2 of the present invention.
1．．．陽極板1. . . Anode plate
11．．．陽極流道11. . . Anode flow path
111．．．入口流道111. . . Inlet runner
112．．．出口流道112. . . Export runner
113．．．串流道113. . . Stream channel
113a．．．中央流道113a. . . Central runner
114．．．支道114. . . Branch road
12．．．肋條12. . . rib
2．．．陰極板2. . . Cathode plate
21．．．陰極流道twenty one. . . Cathode runner
211．．．入口流道211. . . Inlet runner
212．．．出口流道212. . . Export runner
213．．．串流道213. . . Stream channel
213a．．．中央流道213a. . . Central runner
214．．．支道214. . . Branch road
22．．．肋條twenty two. . . rib
3．．．質子交換膜3. . . Proton exchange membrane
4．．．陽極觸媒層4. . . Anode catalyst layer
4’．．．陰極觸媒層4’. . . Cathode catalyst layer
5．．．陽極擴散層5. . . Anode diffusion layer
5’．．．陽極觸媒層5’. . . Anode catalyst layer
H1、H1’．．．注氣口H1, H1’. . . Gas injection port
H2、H2’．．．排氣口H2, H2’. . . exhaust vent
Claims (25)
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Citations (2)
| 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 |
| TW201101569A (en) * | 2009-06-29 | 2011-01-01 | Univ Yuan Ze | Fuel cell having ribs and porous material flow-channel structure |
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Patent Citations (2)
| 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 |
| TW201101569A (en) * | 2009-06-29 | 2011-01-01 | Univ Yuan Ze | Fuel cell having ribs and porous material flow-channel structure |
Non-Patent Citations (1)
| Title |
|---|
| 2008年出版，Sensors，Vol. 8，p.1475~1487，「Three-Dimensional Transport Modeling for Proton Exchange Membrane(PEM) Fuel Cell with Micro Parallel Flow Field 」，Pil Hyong Lee 等撰寫 * |
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