TWM590783U - Membrane electrode set of Proton Exchange Membrane Fuel Cell - Google Patents

Membrane electrode set of Proton Exchange Membrane Fuel Cell Download PDF

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TWM590783U
TWM590783U TW108212470U TW108212470U TWM590783U TW M590783 U TWM590783 U TW M590783U TW 108212470 U TW108212470 U TW 108212470U TW 108212470 U TW108212470 U TW 108212470U TW M590783 U TWM590783 U TW M590783U
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frame
gas diffusion
proton exchange
inner frame
diffusion layer
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TW108212470U
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Chinese (zh)
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凃宏旗
張書怡
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群翌能源股份有限公司
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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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Abstract

本新型為一種質子交換膜燃料電池的膜電極組，係具有觸媒塗佈薄膜、及位於薄膜兩側的階梯狀邊框組與氣體擴散層，利用階梯狀邊框組具有不同孔徑之內框及外框的特性，使得兩側的氣體擴散層搭設於內框外表面並夾持於薄膜兩側，，藉由內框的固定厚度與孔徑，來控制氣體擴散層與薄膜之間的空隙，以控制氣體擴散層和觸媒塗佈薄膜之間的接觸電阻為最小，並利用內框及外框的搭配來提供足夠的邊框剛性，則使本新型之結構能提供兼具組裝便利及低接觸電阻之特點。The present invention is a membrane electrode assembly of a proton exchange membrane fuel cell, which has a catalyst-coated film, and a stepped frame group and a gas diffusion layer on both sides of the film. The stepped frame group has an inner frame and an outer frame with different apertures The characteristics of the frame enable the gas diffusion layers on both sides to be laid on the outer surface of the inner frame and clamped on both sides of the film. The gap between the gas diffusion layer and the film is controlled by the fixed thickness and aperture of the inner frame to control The contact resistance between the gas diffusion layer and the catalyst-coated film is minimal, and the combination of the inner frame and the outer frame is used to provide sufficient frame rigidity, so that the new structure can provide both easy assembly and low contact resistance. Features.

Description

質子交換膜燃料電池的膜電極組Membrane electrode group of proton exchange membrane fuel cell

本新型為一種膜電極組，係指一種用於質子交換膜燃料電池的膜電極組。The present invention is a membrane electrode group, which refers to a membrane electrode group used in a proton exchange membrane fuel cell.

質子交換膜燃料電池（PEMFC，Proton Exchange Membrane Fuel Cell）為現有技術中其中一種燃料電池，其膜電極組（MEA，Membrane Electrode Assembling）一般由內而外具有質子交換膜（PEM，Proton Exchange Membrane）、陽極/陰極觸媒層及氣體擴散層（GDL，Gas Diffusion Layer），氣體通過氣體擴散層到達陽極觸媒層，經陽極觸媒層作用而反應為氫離子及電子，氫離子通過質子交換膜抵達另一側的陰極觸媒層，電子則經陽極的導電板收集，並因電位差而流向陰極的導電板，故而形成電流。Proton exchange membrane fuel cell (PEMFC, Proton Exchange Membrane Fuel Cell) is one of the fuel cells in the prior art, and its membrane electrode group (MEA, Membrane Electrode Assembling) generally has a proton exchange membrane (PEM, Proton Exchange Membrane) from inside to outside 1. Anode/cathode catalyst layer and gas diffusion layer (GDL, Gas Diffusion Layer) Reaching the cathode catalyst layer on the other side, electrons are collected by the conductive plate of the anode, and flow to the conductive plate of the cathode due to the potential difference, so a current is formed.

由於質子交換膜的厚度越大，則放電時的阻抗越大，故現有技術中無不追求使質子交換膜越薄越好，以提高放電效能。然而，質子交換膜的厚度越薄，將導致其本身的強度下降，當進行膜電極組的組裝時，質子交換膜容易在過程中被拉伸、穿刺而造成損壞。在專利CN103119711A號公開案中，雖然已提出利用設置邊框於質子交換膜邊緣來提高膜電極組的強度，且組裝時不影響主要的活性區域，但採用此方法時，氣體擴散層須設法固定在活性區周邊的邊框上，如此一來將增加氣體擴散層與觸媒層和質子交換膜之組合之間的接觸電阻，但若採用薄形邊框來減少接觸電阻，則會增加邊框組裝的困難度。Since the greater the thickness of the proton exchange membrane, the greater the impedance during discharge. Therefore, in the prior art, it is always sought to make the proton exchange membrane as thin as possible to improve the discharge efficiency. However, the thinner the thickness of the proton exchange membrane, the lower its strength. When the membrane electrode assembly is assembled, the proton exchange membrane is easily stretched and punctured during the process to cause damage. In the publication of Patent No. CN103119711A, although it has been proposed to use a frame on the edge of the proton exchange membrane to improve the strength of the membrane electrode assembly, and does not affect the main active area during assembly, but when using this method, the gas diffusion layer must be fixed at The frame around the active area will increase the contact resistance between the combination of the gas diffusion layer, the catalyst layer and the proton exchange membrane, but if a thin frame is used to reduce the contact resistance, it will increase the difficulty of frame assembly .

有鑑於此，本新型係在加強膜電極組強度且減少接觸電阻的前提下，改善前述組裝上的問題。In view of this, the present invention improves the aforementioned assembly problems on the premise of enhancing the strength of the membrane electrode assembly and reducing the contact resistance.

為達到上述之新型目的，本新型係提供一種一種質子交換膜燃料電池的膜電極組，其包括： 一觸媒塗佈薄膜； 二階梯狀邊框組，其分別設於該觸媒塗佈薄膜的兩側之邊緣，該觸媒塗佈薄膜夾持於所述階梯狀邊框組之間，各階梯狀邊框組包含一內框及一外框，該內框具有一第一孔，該外框具有一第二孔，該第一孔之寬度小於該第二孔之寬度； 二氣體擴散層，其分別設於該觸媒塗佈薄膜的兩側，該觸媒塗佈薄膜夾持於所述氣體擴散層之間，且所述氣體擴散層設置於所述第一孔與所述第二孔中，所述氣體擴散層搭接於所述內框之外表面。 In order to achieve the above-mentioned new purpose, the present invention provides a membrane electrode assembly for a proton exchange membrane fuel cell, which includes: A catalyst coated film; Two stepped frame groups, which are respectively disposed on the edges of both sides of the catalyst coated film, the catalyst coated film is sandwiched between the stepped frame groups, each stepped frame group includes an inner frame and An outer frame, the inner frame has a first hole, the outer frame has a second hole, the width of the first hole is smaller than the width of the second hole; Two gas diffusion layers, which are respectively disposed on both sides of the catalyst coating film, the catalyst coating film is sandwiched between the gas diffusion layers, and the gas diffusion layer is disposed on the first hole and In the second hole, the gas diffusion layer overlaps the outer surface of the inner frame.

本新型的優點在於，藉由藉由氣體擴散層搭接於薄形內框之外表面的特性，利用內框的固定厚度與突出長度來將氣體擴散層與觸媒塗佈薄膜之間的空隙降至最低，來降低設置邊框時所增加於氣體擴散層和觸媒塗佈薄膜之間的接觸電阻，並利用內框及外框的搭配來提供足夠的邊框剛性，則使本新型之結構能提供兼具組裝便利及低接觸電阻之特點。The advantage of the present invention is that the gap between the gas diffusion layer and the catalyst-coated film is utilized by the characteristic that the gas diffusion layer overlaps the outer surface of the thin inner frame and the fixed thickness and protruding length of the inner frame Minimize to reduce the contact resistance added between the gas diffusion layer and the catalyst coating film when setting the frame, and use the combination of the inner frame and the outer frame to provide sufficient frame rigidity, so that the new structure can be Provide the characteristics of both convenient assembly and low contact resistance.

以下配合圖式及本新型之實施例，進一步闡述本新型為達成預定新型目的所採取的技術手段，其中圖式僅為了說明目的而已被簡化，並通過描述本新型的元件和組件之間的關係來說明本新型的結構或方法新型，因此，圖中所示的元件不以實際數量、實際形狀、實際尺寸以及實際比例呈現，尺寸或尺寸比例已被放大或簡化，藉此提供更好的說明，已選擇性地設計和配置實際數量、實際形狀或實際尺寸比例，而詳細的元件佈局可能更複雜。The technical methods adopted by the new model to achieve the intended new model will be further explained in conjunction with the drawings and the embodiments of the new model. The drawings have been simplified for illustrative purposes only, and by describing the relationship between the elements and components of the new model To illustrate the new structure or method of the new type, therefore, the elements shown in the figures are not presented in actual number, actual shape, actual size and actual ratio, the size or size ratio has been enlarged or simplified to provide a better explanation The actual number, actual shape or actual size ratio has been selectively designed and configured, and the detailed component layout may be more complicated.

請參閱圖1及圖2所示，本新型包含有一觸媒塗佈薄膜10、二階梯狀邊框組20及二氣體擴散層30。Please refer to FIGS. 1 and 2. The present invention includes a catalyst coated film 10, two stepped frame groups 20 and two gas diffusion layers 30.

該觸媒塗佈薄膜10包含有一質子交換膜及其兩側的觸媒層。The catalyst coating film 10 includes a proton exchange membrane and catalyst layers on both sides.

所述階梯狀邊框組20分別設於該觸媒塗佈薄膜10的兩側之邊緣，以夾持該觸媒塗佈薄膜10於所述階梯狀邊框組20之間，各階梯狀邊框組20包含一內框21及一外框22，該內框21具有一第一孔211，該外框22具有一第二孔221，該第一孔211與該第二孔221重疊以露出該觸媒塗布薄膜10之大部區域，該第一孔211之寬度小於該第二孔221之寬度，則使得內框21之內側緣較外框22之內側緣突出一第一長度L，在一實施例中，第一長度L可為0.5至10毫米（mm），而該內框21之厚度H可為10至50微米（μm）。在一實施例中，所述內框21與所述外框22的材料可為烴類聚合物、氟碳聚合物、橡膠、或其他熱塑、熱固性塑料，例如：PET、PEN、PI、PTFE等；或者具網狀纖維網為骨幹的強化高分子材料，而用以黏著內框21與外框22、或黏著內框21與觸媒塗佈薄膜10之黏著劑可為熱塑、熱固樹脂、壓敏黏著劑、熱熔黏著劑等材料，前述材料僅為例示說明，本新型並不限於此。在一實施例中，所述內框21須選用較相容於該觸媒塗佈薄膜10的材料，而所述內框21可採用與所述外框22不同的材料。The stepped frame groups 20 are respectively disposed on the edges of both sides of the catalyst coated film 10 to sandwich the catalyst coated film 10 between the stepped frame groups 20, and each stepped frame group 20 Including an inner frame 21 and an outer frame 22, the inner frame 21 has a first hole 211, the outer frame 22 has a second hole 221, the first hole 211 and the second hole 221 overlap to expose the catalyst In most areas of the coating film 10, the width of the first hole 211 is smaller than the width of the second hole 221, so that the inner edge of the inner frame 21 protrudes a first length L than the inner edge of the outer frame 22, in one embodiment In this case, the first length L may be 0.5 to 10 millimeters (mm), and the thickness H of the inner frame 21 may be 10 to 50 microns (μm). In an embodiment, the materials of the inner frame 21 and the outer frame 22 may be hydrocarbon polymers, fluorocarbon polymers, rubber, or other thermoplastic or thermosetting plastics, such as PET, PEN, PI, PTFE Etc.; or the reinforced polymer material with the mesh fiber web as the backbone, and the adhesive used to adhere the inner frame 21 and the outer frame 22, or the inner frame 21 and the catalyst coating film 10 may be thermoplastic, thermosetting For resins, pressure-sensitive adhesives, hot-melt adhesives, and other materials, the foregoing materials are only examples, and the present invention is not limited thereto. In an embodiment, the inner frame 21 must be made of a material that is more compatible with the catalyst coating film 10, and the inner frame 21 can be made of a different material from the outer frame 22.

所述氣體擴散層30分別設於該觸媒塗佈薄膜10的兩側，以夾持該觸媒塗佈薄膜10於所述氣體擴散層30之間，且所述氣體擴散層30設置於所述第一孔211與所述第二孔221中，所述氣體擴散層30搭接於所述內框21之外表面212，並貼靠於所述外框22之第二孔221的內壁面222。The gas diffusion layer 30 is respectively disposed on both sides of the catalyst coating film 10 to sandwich the catalyst coating film 10 between the gas diffusion layer 30, and the gas diffusion layer 30 is disposed on the In the first hole 211 and the second hole 221, the gas diffusion layer 30 overlaps the outer surface 212 of the inner frame 21 and is in contact with the inner wall surface of the second hole 221 of the outer frame 22 222.

則藉由氣體擴散層30搭接於內框21之外表面212的結構，使得氣體擴散層30夾持觸媒塗佈薄膜10的力可分散於內框21上，以避免應力集中現象的產生，則使得設置階梯狀邊框組20不對觸媒塗佈薄膜10的構造形成不良影響，而達到在不對觸媒塗佈薄膜10造成損壞的前提下，仍能提高膜電極組整體強度的目的。By the structure that the gas diffusion layer 30 overlaps the outer surface 212 of the inner frame 21, the force of the gas diffusion layer 30 sandwiching the catalyst coating film 10 can be dispersed on the inner frame 21 to avoid the occurrence of stress concentration Therefore, the stepped frame group 20 is not adversely affected to the structure of the catalyst coated film 10, and the purpose of improving the overall strength of the membrane electrode group can be achieved without damaging the catalyst coated film 10.

進一步而言，由於氣體擴散層30搭接於內框21之外表面212的設計，則無可避免的將在內框21之第一孔211的內壁面213與位於第一孔211中的氣體擴散層30之間形成一間隙G，該間隙G雖減少了該氣體擴散層30與該觸媒塗佈薄膜10的接觸面積，但可透過有效控制該內框21的厚度H以及該第一長度L來將該間隙G的影響降至最低，因膜電極組的整體厚度將可能視不同應用而需要不同厚度的膜電極組，則此時膜電極組整體所需的厚度可由調整外框22的厚度來加以改變，而不需改變該內框21的厚度H以及該第一長度L。再者，在量產化的考量下，外框22之厚度可標準化，則可藉由堆疊多個外框22來達成所需的膜電極組之厚度。Further, due to the design that the gas diffusion layer 30 overlaps the outer surface 212 of the inner frame 21, it is inevitable that the inner wall surface 213 of the first hole 211 of the inner frame 21 and the gas located in the first hole 211 A gap G is formed between the diffusion layers 30. Although the gap G reduces the contact area between the gas diffusion layer 30 and the catalyst coating film 10, the thickness H of the inner frame 21 and the first length can be effectively controlled by L to minimize the effect of the gap G, because the overall thickness of the membrane electrode group may require different thickness of the membrane electrode group depending on different applications, then the overall thickness of the membrane electrode group can be adjusted by adjusting the outer frame 22 The thickness can be changed without changing the thickness H of the inner frame 21 and the first length L. Furthermore, under the consideration of mass production, the thickness of the outer frame 22 can be standardized, and the thickness of the membrane electrode assembly can be achieved by stacking a plurality of outer frames 22.

本新型之組裝方法包含以下步驟：The new assembly method includes the following steps:

首先，提供一內框21（如圖3A及圖3B所示），再將一外框22設置於內框21之外表面212（如圖4A及圖4B所示），重複前述步驟以製作多個階梯狀邊框組20備用。欲組裝膜電極組成品時，取一組階梯狀邊框組20a中設置一氣體擴散層30（如圖5A及圖5B所示），該氣體擴散層30設置於該外框22之第二孔221中，並貼靠於該外框22之第二孔221的內壁面222。接著再將一觸媒塗佈薄膜10設置於該氣體擴散層30及該內框21上（如圖6A及圖6B所示），並將另一階梯狀邊框組20b壓合於該觸媒塗佈薄膜10上（如圖7A及圖7B所示），以將該觸媒塗佈薄膜10夾持於兩個階梯狀邊框組20a、20b之間，再將另一氣體擴散層30設置於該另一組階梯狀邊框組20b之外框22的第二孔221中（如圖8A所示），以將該觸媒塗佈薄膜10夾持於所述氣體擴散層30之間。最後進行壓合製程，使兩側的氣體擴散層30經壓合後變形延伸入該內框21之第一孔211中，且所述氣體擴散層30搭接於該內框21之外表面212，則使得氣體擴散層30進一步夾持於該觸媒塗佈薄膜10之兩側（如圖8B所示）。在一實施例中，係依據所使用的黏著劑性質而決定壓合時採取熱壓製程或冷壓製程。First, provide an inner frame 21 (as shown in FIGS. 3A and 3B), and then set an outer frame 22 on the outer surface 212 of the inner frame 21 (as shown in FIGS. 4A and 4B), repeat the foregoing steps to make more A set of 20 stepped borders is reserved. When assembling the membrane electrode component, a gas diffusion layer 30 (as shown in FIGS. 5A and 5B) is set in a set of stepped frame group 20 a, and the gas diffusion layer 30 is disposed in the second hole 221 of the outer frame 22 And contact the inner wall surface 222 of the second hole 221 of the outer frame 22. Then, a catalyst coating film 10 is disposed on the gas diffusion layer 30 and the inner frame 21 (as shown in FIGS. 6A and 6B), and another stepped frame group 20b is pressed against the catalyst coating On the cloth film 10 (as shown in FIGS. 7A and 7B), the catalyst coated film 10 is sandwiched between two stepped frame groups 20a, 20b, and another gas diffusion layer 30 is disposed on the Another set of stepped frame groups 20b is in the second holes 221 of the outer frame 22 (as shown in FIG. 8A) to sandwich the catalyst coating film 10 between the gas diffusion layers 30. Finally, a pressing process is performed to deform the gas diffusion layers 30 on both sides to extend into the first hole 211 of the inner frame 21 after being pressed, and the gas diffusion layer 30 overlaps the outer surface 212 of the inner frame 21 Then, the gas diffusion layer 30 is further sandwiched between both sides of the catalyst coating film 10 (as shown in FIG. 8B). In one embodiment, the hot-pressing process or the cold-pressing process is used to determine the lamination according to the nature of the adhesive used.

前述之組裝方法的優點在於藉由預先完成階梯狀邊框組20的結構，組裝時僅須進行觸媒塗佈薄膜10及氣體擴散層30的貼附作業、及氣體擴散層30之壓合作業即可，則可簡化組裝製程而提高組裝便利性。The advantage of the aforementioned assembly method is that by preliminarily completing the structure of the stepped frame group 20, only the attaching operation of the catalyst coating film 10 and the gas diffusion layer 30 and the press cooperation of the gas diffusion layer 30 are required during assembly Yes, the assembly process can be simplified and assembly convenience can be improved.

採用預先成形階梯狀邊框組20的製法亦可如圖9A及圖9B所示，先將預先成形的兩個階梯裝邊框組20a、20b與觸媒塗佈薄膜10組裝後，再與氣體擴散層30加以組裝，並進行壓合作業。As shown in FIGS. 9A and 9B, the pre-formed stepped frame group 20 can also be assembled by assembling two pre-formed stepped frame groups 20a, 20b and the catalyst coating film 10, and then with the gas diffusion layer. 30 to assemble and carry out the co-operation industry.

另一方面，亦可如圖10A至圖10C所示，不預先成形階梯狀邊框組20而係由內而外將觸媒塗佈薄膜10先與內框21結合、再組裝外框22及氣體擴散層10，最後再進行壓合作業，亦能完成本新型之膜電極組的組裝作業。On the other hand, as shown in FIGS. 10A to 10C, the catalyst-coated film 10 may be combined with the inner frame 21 first, and then the outer frame 22 and the gas may be assembled without forming the stepped frame group 20 in advance. The diffusion layer 10, and finally the press-cooperation industry, can also complete the assembly operation of the new membrane electrode assembly.

以上所述僅是本新型的實施例而已，並非對本新型做任何形式上的限制，雖然本新型已以實施例揭露如上，然而並非用以限定本新型，任何所屬技術領域中具有通常知識者，在不脫離本新型技術方案的範圍內，當可利用上述揭示的技術內容作出些許更動或修飾為等同變化的等效實施例，但凡是未脫離本新型技術方案的內容，依據本新型的技術實質對以上實施例所作的任何簡單修改、等同變化與修飾，均仍屬於本新型技術方案的範圍內。The above is only an embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed in the above embodiment, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field of the art, Without departing from the scope of the new technical solution, when the technical contents disclosed above can be used to make some alterations or modifications to equivalent embodiments of equivalent changes, but any content that does not depart from the new technical solution, based on the technical essence of the new technology Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the new technical solution.

10‧‧‧觸媒塗佈薄膜 20、20a、20b‧‧‧階梯狀邊框組 21‧‧‧內框 211‧‧‧第一孔 212‧‧‧外表面 213‧‧‧內壁面 22‧‧‧外框 221‧‧‧第二孔 222‧‧‧內壁面 30‧‧‧氣體擴散層 10‧‧‧catalyst coated film 20, 20a, 20b 21‧‧‧Inner frame 211‧‧‧ First hole 212‧‧‧Outer surface 213‧‧‧Inner wall 22‧‧‧Outer frame 221‧‧‧Second hole 222‧‧‧Inner wall 30‧‧‧Gas diffusion layer

圖1為本新型之側視剖面圖； 圖2為本新型之俯視剖面圖； 圖3A為本新型之組裝方法的第一實施例之步驟1的側視剖面圖； 圖3B為本新型之組裝方法的第一實施例之步驟1的俯視剖面圖； 圖4A為本新型之組裝方法的第一實施例之步驟2的側視剖面圖； 圖4B為本新型之組裝方法的第一實施例之步驟2的俯視剖面圖； 圖5A為本新型之組裝方法的第一實施例之步驟3的側視剖面圖； 圖5B為本新型之組裝方法的第一實施例之步驟3的仰視剖面圖； 圖6A為本新型之組裝方法的第一實施例之步驟4的側視剖面圖； 圖6B為本新型之組裝方法的第一實施例之步驟4的俯視剖面圖； 圖7A為本新型之組裝方法的第一實施例之步驟5的側視剖面圖； 圖7B為本新型之組裝方法的第一實施例之步驟5的俯視剖面圖； 圖8A為本新型之組裝方法的第一實施例之步驟6的側視剖面圖； 圖8B為本新型之組裝方法的第一實施例之步驟7的側視剖面圖； 圖9A及9B為本新型之組裝方法的第二實施例之部份步驟的側視剖面圖； 圖10A至10C為本新型之組裝方法的第三實施例之部份步驟的側視剖面圖。 Figure 1 is a side sectional view of the new model; Figure 2 is a top sectional view of the new model; 3A is a side sectional view of step 1 of the first embodiment of the new assembly method; 3B is a top cross-sectional view of step 1 of the first embodiment of the new assembly method; 4A is a side cross-sectional view of step 2 of the first embodiment of the new assembly method; 4B is a top cross-sectional view of step 2 of the first embodiment of the new assembly method; 5A is a side cross-sectional view of step 3 of the first embodiment of the new assembly method; 5B is a bottom cross-sectional view of step 3 of the first embodiment of the new assembly method; 6A is a side cross-sectional view of step 4 of the first embodiment of the new assembly method; 6B is a top cross-sectional view of step 4 of the first embodiment of the new assembly method; 7A is a side cross-sectional view of step 5 of the first embodiment of the new assembly method; 7B is a top cross-sectional view of step 5 of the first embodiment of the new assembly method; 8A is a side cross-sectional view of step 6 of the first embodiment of the new assembly method; 8B is a side cross-sectional view of step 7 of the first embodiment of the new assembly method; 9A and 9B are side sectional views of some steps of the second embodiment of the new assembly method; 10A to 10C are side cross-sectional views of some steps of the third embodiment of the new assembly method.

10‧‧‧觸媒塗佈薄膜 10‧‧‧catalyst coated film

20‧‧‧階梯狀邊框組 20‧‧‧Stepped frame group

21‧‧‧內框 21‧‧‧Inner frame

211‧‧‧第一孔 211‧‧‧ First hole

212‧‧‧外表面 212‧‧‧Outer surface

213‧‧‧內壁面 213‧‧‧Inner wall

22‧‧‧外框 22‧‧‧Outer frame

221‧‧‧第二孔 221‧‧‧Second hole

222‧‧‧內壁面 222‧‧‧Inner wall

30‧‧‧氣體擴散層 30‧‧‧Gas diffusion layer

Claims (7)

一種質子交換膜燃料電池的膜電極組，其包括： 一觸媒塗佈薄膜； 二階梯狀邊框組，其分別設於該觸媒塗佈薄膜的兩側之邊緣，該觸媒塗佈薄膜夾持於所述階梯狀邊框組之間，各階梯狀邊框組包含一內框及一外框，該內框具有一第一孔，該外框具有一第二孔，該第一孔之寬度小於該第二孔之寬度； 二氣體擴散層，其分別設於該觸媒塗佈薄膜的兩側，該觸媒塗佈薄膜夾持於所述氣體擴散層之間，且所述氣體擴散層設置於所述第一孔與所述第二孔中，所述氣體擴散層搭接於所述內框之外表面。 A membrane electrode assembly of a proton exchange membrane fuel cell, which includes: A catalyst coated film; Two stepped frame groups, which are respectively disposed on the edges of both sides of the catalyst coated film, the catalyst coated film is sandwiched between the stepped frame groups, each stepped frame group includes an inner frame and An outer frame, the inner frame has a first hole, the outer frame has a second hole, the width of the first hole is smaller than the width of the second hole; Two gas diffusion layers, which are respectively disposed on both sides of the catalyst coating film, the catalyst coating film is sandwiched between the gas diffusion layers, and the gas diffusion layer is disposed on the first hole and In the second hole, the gas diffusion layer overlaps the outer surface of the inner frame. 如請求項1所述之質子交換膜燃料電池的膜電極組，其中所述氣體擴散層貼靠於所述外框之第二孔的內壁面。The membrane electrode assembly of the proton exchange membrane fuel cell according to claim 1, wherein the gas diffusion layer is in contact with the inner wall surface of the second hole of the outer frame. 如請求項1或2所述之質子交換膜燃料電池的膜電極組，其中所述內框之內側緣較所述外框之內側緣突出一第一長度。The membrane electrode assembly of the proton exchange membrane fuel cell according to claim 1 or 2, wherein the inner edge of the inner frame protrudes by a first length than the inner edge of the outer frame. 如請求項3所述之質子交換膜燃料電池的膜電極組，其中所述第一長度為0.5至10毫米。The membrane electrode assembly of the proton exchange membrane fuel cell according to claim 3, wherein the first length is 0.5 to 10 mm. 如請求項1或2所述之質子交換膜燃料電池的膜電極組，其中所述內框之厚度為10至50微米。The membrane electrode assembly of the proton exchange membrane fuel cell according to claim 1 or 2, wherein the thickness of the inner frame is 10 to 50 microns. 如請求項3所述之質子交換膜燃料電池的膜電極組，其中所述內框之厚度為10至50微米。The membrane electrode assembly of the proton exchange membrane fuel cell according to claim 3, wherein the thickness of the inner frame is 10 to 50 microns. 如請求項4所述之質子交換膜燃料電池的膜電極組，其中所述內框之厚度為10至50微米。The membrane electrode assembly of the proton exchange membrane fuel cell according to claim 4, wherein the thickness of the inner frame is 10 to 50 microns.
TW108212470U 2019-09-20 2019-09-20 Membrane electrode set of Proton Exchange Membrane Fuel Cell TWM590783U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114388832A (en) * 2021-12-21 2022-04-22 欣和智达能源科技发展(浙江)有限公司 Spraying jig for membrane electrode of proton exchange membrane fuel cell

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114388832A (en) * 2021-12-21 2022-04-22 欣和智达能源科技发展(浙江)有限公司 Spraying jig for membrane electrode of proton exchange membrane fuel cell
CN114388832B (en) * 2021-12-21 2024-06-11 欣和智达能源科技发展(浙江)有限公司 Spraying jig for proton exchange membrane fuel cell membrane electrode

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