TW201419643A - Compact bipolar plate - Google Patents
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- TW201419643A TW201419643A TW101140972A TW101140972A TW201419643A TW 201419643 A TW201419643 A TW 201419643A TW 101140972 A TW101140972 A TW 101140972A TW 101140972 A TW101140972 A TW 101140972A TW 201419643 A TW201419643 A TW 201419643A
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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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本發明係有關於一種緊緻型雙極板，尤其是指運用於燃料電池且可縮小體積或相對提高燃料電池功率的雙極板設計，藉以雙極板共用之特徵技術，達到高功率密度的電能功效為創新設計者。The invention relates to a compact bipolar plate, in particular to a bipolar plate design which can be used for a fuel cell and can reduce the volume or relatively increase the power of the fuel cell, thereby achieving high power density by the characteristic technology of bipolar plate sharing. The power efficiency is an innovative designer.
按，燃料電池因具備低污染及高能源轉換效率之特性，成為近年來極受矚目之能源供應技術，而燃料電池是一種透過氧或其他氧化劑進行氧化還原反應，把燃料中的化學能轉換成電能的電池，其在陽極供應燃料並在陰極供應氧化劑，即可藉由電化學反應將燃料的化學能轉換為電能。其所使用的燃料可為氫氣或經重組後的天然氣、甲醇、汽油等，而其氧化劑可為氧氣或空氣。若以氫氣為燃料則燃料電池的產物是水、電能和熱能，故只要連續不斷地供應燃料，燃料電池就可以不斷地發電。由於燃料電池之反應產物是水，因此對環境沒有任何的污染，藉由其高效率與低污染的兩大特點使得此技術開發以來一直廣受矚目。According to the characteristics of low pollution and high energy conversion efficiency, fuel cells have become the most important energy supply technology in recent years. Fuel cells are a kind of redox reaction through oxygen or other oxidants to convert chemical energy in fuel into A battery of electrical energy that supplies fuel at the anode and an oxidant at the cathode, which converts the chemical energy of the fuel into electrical energy by an electrochemical reaction. The fuel used may be hydrogen or recombined natural gas, methanol, gasoline, etc., and the oxidant may be oxygen or air. If hydrogen is used as a fuel, the products of the fuel cell are water, electricity, and heat, so that the fuel cell can continuously generate electricity as long as the fuel is continuously supplied. Since the reaction product of the fuel cell is water, there is no pollution to the environment, and the two characteristics of high efficiency and low pollution have made the technology attract attention.
現今生活中存在多種燃料電池，但它們運作原理基本上大致相同，必定包含一個陽極，一個陰極以及電解質讓電荷通過電池兩極。電子由陽極傳至陰極產生直流電，完整電路。各種燃料電池是基於使用不同的電解質以及電池大小而分類的，因此電池種類變得更多元化，用途亦更廣泛。由於以個體燃料電池計，單一顆電池只能輸出相對較小的電壓，大約0.7V，所以燃料電池多以串連或一組的分式製造，以增加電壓，配合應用需求；而一般傳統之單電池為由一質子交換膜對應可形成陰、陽兩極反應空間的分隔板而成，兩相堆疊之單電池為以兩分隔板相對貼抵，因此，會形成佔體積的現象，且若在一定體積內其單電池的組數不多，相對具有減少效能的缺失。There are a variety of fuel cells in their lives today, but they operate on roughly the same principle and must contain an anode, a cathode, and an electrolyte to pass charge through the electrodes. The electrons are transmitted from the anode to the cathode to produce a direct current, complete circuit. Various fuel cells are classified based on the use of different electrolytes and battery sizes, so the battery types become more diverse and more versatile. Because of the individual fuel cell, a single battery can only output a relatively small voltage, about 0.7V, so the fuel cell is mostly manufactured in series or in a group to increase the voltage to meet the application requirements; The single cell is formed by a proton exchange membrane corresponding to a partition plate which can form a reaction space between the anode and the cathode. The two cells stacked in a two-phase manner are relatively opposed by the two partition plates, so that a volume is formed, and If the number of cells in a certain volume is small, the relative lack of performance is reduced.
緣是，發明人有鑑於此，秉持多年該相關行業之豐富設計開發及實際製作經驗，改良發明一緊緻型雙極板，其目的在於提供一種可縮小體積或相對提高燃料電池功率的板片設計，藉以雙極板共用之特徵技術，達到上述功效者。In view of this, the inventors have improved the invention of a compact bipolar plate with years of experience in rich design and development and practical production in this related industry, with the aim of providing a plate that can reduce the volume or relatively increase the power of the fuel cell. Design, by the characteristics of the bipolar board sharing technology to achieve the above effects.
為了達到上述實施目的，本發明人乃研擬如下實施技術，為一種緊緻型雙極板，該雙極板主要運用於燃料電池堆中，而該燃料電池堆為由複數單電池串聯所構成，而每一單電池包含有質子交換膜、氣道墊片及雙極板，而其兩相鄰之單電池間共用一雙極板者，其中該雙極板之上、下端分別設有對應供燃料、水及氧氣導入與排出的進、出入孔槽，且雙極板第一端面上設有凹陷連通的第一流道，而第二端面具有與第一流道相對錯位而設的第二流道，使雙極板之第一、第二流道可分別對應供燃料、氧氣(或水)流通產生陰、陽極氣體擴散反應(或冷卻)；藉此，利用雙極板雙向技術，使其讓兩單電池間可共用雙極板，達到縮小燃料電池堆的體積，相對也可增加效能者。In order to achieve the above-mentioned implementation object, the inventors have developed the following implementation technology, which is a compact bipolar plate mainly used in a fuel cell stack, and the fuel cell stack is composed of a plurality of single cells connected in series. Each of the single cells includes a proton exchange membrane, an airway gasket, and a bipolar plate, and a pair of adjacent cells share a bipolar plate, wherein the upper and lower ends of the bipolar plate are respectively provided with corresponding The inlet, the inlet and outlet slots for introducing and discharging fuel, water and oxygen, and the first end surface of the bipolar plate is provided with a recessed first flow passage, and the second end surface has a second flow passage which is opposite to the first flow passage. Therefore, the first and second flow passages of the bipolar plate can respectively generate fuel and oxygen (or water) to generate a negative diffusion reaction (or cooling) of the anode and the cathode; thereby, the bipolar plate bidirectional technology is used to make The bipolar plates can be shared between the two single cells to reduce the volume of the fuel cell stack, and the relative efficiency can be increased.
在本發明的一實施例中，該單電池包含有質子交換膜，及位於質子交換膜兩側的雙極板，及分別位於質子交換膜與雙極板間的第一、第二氣道墊片，其中該第一、第二氣道墊片上設有分別遮蔽左側或右側進、出入孔槽，進行導入與排出氣體的遮蔽段，以使氣體〔燃料、氧氣〕分別流經雙極板第一端面之第一流道及第二端面之第二流道，再藉以質子交換膜讓兩氣體流通產生陰、陽極氣體擴散反應者。In an embodiment of the invention, the unit cell includes a proton exchange membrane, and a bipolar plate on both sides of the proton exchange membrane, and first and second air passage gaskets respectively located between the proton exchange membrane and the bipolar plate. The first air channel and the second air channel gasket are respectively provided with shielding holes for shielding the left or right side into and out of the hole, and introducing and discharging the gas, so that the gas (fuel, oxygen) flows through the bipolar plate respectively. The first flow path of the end surface and the second flow path of the second end surface are further coupled to each other by a proton exchange membrane to generate a gas diffusion reaction between the cathode and the anode.
在本發明的一實施例中，該雙極板為金屬材質製成，且以不鏽鋼為最佳者，因而具有厚度小、質量輕之優點，不僅可縮減燃料電池之體積，亦能達到輕量化之需求，且只需設計（開模）一種雙極板即可供燃料電池之陽、陰極使用，可避免如傳統之燃料電池需要用到兩種不同設計的雙極板，有效降低燃料電池因模具複雜性所產生之製造成本。In an embodiment of the invention, the bipolar plate is made of a metal material and is preferably made of stainless steel, so that the thickness is small and the weight is light, which not only reduces the volume of the fuel cell, but also reduces the weight. The need, and only need to design (open the mold) a bipolar plate can be used for the anode and cathode of the fuel cell, which can avoid the need for two different designs of bipolar plates for the traditional fuel cell, effectively reducing the fuel cell Manufacturing costs due to mold complexity.
在本發明的一實施例中，該燃料電池堆中設有至少一冷卻系統，該該冷卻系統包含有一水道墊片及位於水道墊片兩側的雙極板，且冷卻系統與單電池間共用一雙極板者。In an embodiment of the invention, the fuel cell stack is provided with at least one cooling system, the cooling system includes a water channel gasket and a bipolar plate on both sides of the water channel gasket, and the cooling system is shared with the single battery A double pole board.
在本發明的一實施例中，該燃料電池堆中之單電池與冷卻系統錯位而設，且冷卻系統與單電池間共用一雙極板者。In an embodiment of the invention, the single cell in the fuel cell stack is misaligned with the cooling system, and a bipolar plate is shared between the cooling system and the single cell.
在本發明的一實施例中，雙極板間可以銲接接合或導電膠黏合，銲接接合之銲點可供雙極板間傳遞電子之用；再者，銲接方式較佳可以雷射點銲接合二雙極板，因雷射銲接（ＬＢＷ）因具能量密度高，入熱量低、熱影響小等優點，可有效降低銲道熱裂與銲接敏化的發生。In an embodiment of the invention, the bipolar plates can be welded or bonded by conductive glue, and the solder joints can be used for transferring electrons between the bipolar plates; further, the soldering method is preferably laser spot welding. Due to the advantages of high energy density, low heat input and small heat influence, the two-pole plate can effectively reduce the occurrence of hot cracking and welding sensitization of the weld bead due to its high energy density (LBW).
為令本發明所運用之技術內容、發明目的及其達成之功效有更完整且清楚的揭露，茲於下詳細說明之，並請一併參閱所揭之圖式及圖號：For a more complete and clear disclosure of the technical content, the purpose of the invention and the effects thereof achieved by the present invention, it is explained in detail below, and please refer to the drawings and drawings:
首先，請一併參閱第一～五圖所示，本發明之緊緻型雙極板側視示意圖，該燃料電池堆為由複數單電池（Ａ）串聯所構成，而每一單電池（Ａ）包含有質子交換膜（１），及位於質子交換膜（１）兩側的雙極板（２），及分別位於質子交換膜（１）與雙極板（２）間的第一、第二氣道墊片（３）、（４），而其兩相鄰之單電池（Ａ）間共用一雙極板（２）者，其中：First, please refer to the side view of the compact bipolar plate of the present invention as shown in the first to fifth figures. The fuel cell stack is composed of a plurality of single cells (A) connected in series, and each single cell (A) ) comprising a proton exchange membrane (1), and a bipolar plate (2) located on both sides of the proton exchange membrane (1), and first and second respectively located between the proton exchange membrane (1) and the bipolar plate (2) Two air channel gaskets (3), (4), and two adjacent battery cells (A) share a double pole plate (2), wherein:
該雙極板（２）上端部（２１）分別設有對應供水及氣體〔燃料或氧氣〕導入的水進入孔槽（２１１）及第一、第二進入孔槽（２１２）、（２１３），而下端部（２２）分別設有對應供水及氣體〔燃料或氧氣〕排出的水出入孔槽（２２１）及第一、第二出入孔槽（２２２）、（２２３），且雙極板（２）第一端面（２３）上設有凹陷連通的第一流道（２３１），且第一端面（２３）對應與單電池（Ａ）之第一氣道墊片（３）相貼，而該第一氣道墊片（３）上設有遮蔽第二進、出入孔槽（２１３）、（２２３）及水進、出入孔槽（２１１）、（２２１）的遮蔽段（３１），以使氣體經雙極板（２）第一進入孔槽（２１２）導入而流通於第一端面（２３）之第一流道（２３１），且由第一出入孔槽（２２１）排出，而其雙極板（２）第二端面（２４）具有與第一流道（２３１）相對凹凸錯位而設的第二流道（２４１），且第二端面（２４）對應與單電池（Ａ）之第二氣道墊片（４）相貼，而該第二氣道墊片（４）上設有遮蔽第一進、出入孔槽（２１１）、（２２１）及水進、出入孔槽（２１１）、（２２１）的遮蔽段（４１），以使氣體經雙極板（２）第二進入孔槽（２１３）導入而流通於第二端面（２４）之第二流道（２４１），且由第二出入孔槽（２２３）排出者。The upper end portion (21) of the bipolar plate (2) is respectively provided with a water inlet hole (211) and first and second inlet holes (212) and (213) corresponding to water and gas (fuel or oxygen) introduction. The lower end portion (22) is respectively provided with a water inlet and outlet groove (221) corresponding to the water supply and the gas (fuel or oxygen) and the first and second inlet and outlet holes (222), (223), and the bipolar plate (2) a first end surface (23) is provided with a first flow channel (231) connected in a recessed manner, and the first end surface (23) is corresponding to the first air channel gasket (3) of the single cell (A), and the first surface The air passage gasket (3) is provided with a shielding section (31) for shielding the second inlet and outlet groove (213), (223) and the water inlet and outlet slots (211) and (221) to allow the gas to pass through the double The first inlet hole (212) of the electrode plate (2) is introduced and flows through the first flow path (231) of the first end surface (23), and is discharged by the first inlet and outlet groove (221), and the bipolar plate thereof (2) The second end face ( 4) a second flow path (241) having a displacement offset from the first flow path (231), and the second end surface (24) corresponding to the second air path gasket (4) of the single cell (A), The second air passage gasket (4) is provided with a shielding section (41) for shielding the first inlet and outlet groove (211), (221) and the water inlet and outlet slots (211), (221), The gas is introduced through the second inlet groove (213) of the bipolar plate (2) to flow through the second flow path (241) of the second end surface (24), and is discharged by the second inlet/outlet groove (223).
請一併參閱第一～五圖所示，本發明之組裝使用的實施例係有下列二種，其分述如下：Please refer to the first to fifth figures together. The embodiment of the assembly used in the present invention has the following two types, which are described as follows:
實施例一為該燃料電池堆為由複數單電池（Ａ）串聯所構成，而於燃料電池堆中設有至少一冷卻系統（Ｂ），組裝時，為一個一個單電池（Ａ）分別堆疊組設，首先，讓一單電池（Ａ）之質子交換膜（１）兩側分別對應組設第一、第二氣道墊片（３）、（４），再於第一、第二氣道墊片（３）、（４）的外側分別對應設置雙極板（２），而其每一雙極板（２）上端部均設有對應供水及氣體〔燃料或氧氣〕導入的水進入孔槽（２１１）及第一、第二進入孔槽（２１２）、（２１３），而下端部則分別設有對應供水及氣體〔燃料或氧氣〕排出的水出入孔槽（２２１）及第一、第二出入孔槽（２２２）、（２２３），因此，當第一氣道墊片（３）貼抵在雙極板（２）第一端面（２３）時，其藉由該第一氣道墊片（３）上遮蔽第二進、出入孔槽（２１３）、（２２３）及水進、出入孔槽（２１１）、（２２１）的遮蔽段（３１），而使燃料氣體〔於此以氫氣為例〕經雙極板（２）第一進入孔槽（２１２）導入而流通於第一端面（２３）之第一流道（２３１），且可由第一出入孔槽（２２２）排出；相對地，其當第二氣道墊片（４）貼抵在雙極板（２）第二端面（２４）時，其藉由該第二氣道墊片（４）上遮蔽第一進、出入孔槽（２１１）、（２２１）及水進、出入孔槽（２１１）、（２２１）的遮蔽段（４１），而使氧氣經雙極板（２）第二進入孔槽（２１３）導入而流通於第二端面（２４）之第二流道（２４１）內，且可由第二出入孔槽（２２３）排出；而上述之氫氣流通於雙極板（２）第一流道（２３１），而氧氣流通於雙極板（２）第二流道（２４１），兩氣體藉由雙極板（２）間的質子交換膜（１）而產生作用反應。In the first embodiment, the fuel cell stack is composed of a plurality of single cells (A) connected in series, and at least one cooling system (B) is disposed in the fuel cell stack. When assembled, the battery cells are stacked one by one (A). First, let the first and second airway gaskets (3) and (4) be respectively arranged on both sides of the proton exchange membrane (1) of a single battery (A), and then the first and second airway gaskets. The outer sides of (3) and (4) are respectively provided with bipolar plates (2), and the upper end portions of each of the bipolar plates (2) are provided with water inlet holes corresponding to water supply and gas (fuel or oxygen) introduction ( 211) and first and second inlet holes (212), (213), and the lower end portion is respectively provided with water inlet and outlet grooves (221) corresponding to water supply and gas (fuel or oxygen) discharge, and first and second The inlet and outlet grooves (222), (223), therefore, when the first air passage gasket (3) abuts against the first end surface (23) of the bipolar plate (2), the first air passage gasket (3) ) shielding the second inlet and outlet slots (21 ), (223) and the shielding section (31) of the water inlet and outlet slots (211) and (221), so that the fuel gas (here, hydrogen gas) passes through the first inlet slot of the bipolar plate (2) (212) introduced into the first flow path (231) of the first end surface (23), and can be discharged by the first access hole (222); oppositely, when the second air passage gasket (4) is attached to the double When the second end surface (24) of the electrode plate (2) is shielded by the second air passage gasket (4), the first inlet and outlet groove (211), (221) and the water inlet and outlet slots (211) And the shielding section (41) of (221), wherein oxygen is introduced into the second flow path (241) of the second end surface (24) through the second inlet hole (213) of the bipolar plate (2), And can be discharged from the second inlet and outlet groove (223); and the hydrogen gas flows through the first flow channel (231) of the bipolar plate (2), and oxygen flows through the second flow channel (241) of the bipolar plate (2), two Gas between the bipolar plates (2) Exchange membrane (1) to produce a reaction effect.
而上述為簡述一單電池（Ａ）的反應作用，當數個單電池（Ａ）疊置時，其兩相鄰之單電池（Ａ）係共一雙極板（２），以讓雙極板（２）第二端面（２４）對上一單電池（Ａ），而雙極板（２）另一側的第一端面（２３）對應下一單電池（Ａ），藉此，利用雙極板（２）雙向流道的技術，使其讓兩單電池（Ａ）間可共用雙極板（２），達到縮小燃料電池堆的體積，相對也可增加效能者。另外，在諸多排列堆疊的單電池（Ａ）中係設有至少一冷卻系統（Ｂ），該冷卻系統（Ｂ）主要為供冷卻劑流通，使其冷卻單電池（Ａ）的反應溫度及供單電池（Ａ）反應後的產物（水）排出；而該冷卻系統（Ｂ）包含有一水道墊片（５）及位於水道墊片（５）兩側的雙極板（２），而此雙極板（２）與上述雙極板（２）構造相同，即讓冷卻系統（Ｂ）與上一單電池（Ａ）及下一單電池（Ａ）均共用一雙極板（２），主要藉以水道墊片（５）上遮蔽第一、第二進、出入孔槽（２１３）、（２２３）的遮蔽段（５１），而能讓冷卻劑經水進入孔槽（２１１）而流竄於雙極板（２）第一端面（２３）之第一流道（２３１）與第二端面（２４）之第二流道（２４１）間，再由水出入孔槽（２２１）排出以冷卻燃料電池堆的反應溫度者。The above is a brief description of the reaction of a single cell (A). When several single cells (A) are stacked, the two adjacent cells (A) are a total of two bipolar plates (2) to allow double The second end surface (24) of the plate (2) faces the upper unit cell (A), and the first end surface (23) of the other side of the bipolar plate (2) corresponds to the next unit cell (A), thereby utilizing The bipolar plate (2) bidirectional flow channel technology allows the two single cells (A) to share the bipolar plate (2), which can reduce the volume of the fuel cell stack, and can also increase the efficiency. In addition, at least one cooling system (B) is disposed in a plurality of stacked cells (A), and the cooling system (B) is mainly for circulating a coolant to cool the reaction temperature of the single cell (A) and The product (water) after the reaction of the single cell (A) is discharged; and the cooling system (B) comprises a water channel gasket (5) and a bipolar plate (2) located on both sides of the water channel gasket (5), and the double The plate (2) has the same structure as the above-mentioned bipolar plate (2), that is, the cooling system (B) shares a bipolar plate (2) with the previous single cell (A) and the next single cell (A), mainly The shielding section (51) of the first and second inlet and outlet grooves (213) and (223) is shielded by the water channel gasket (5), so that the coolant can flow into the hole (211) through the water and flow in the double The first flow path (231) of the first end surface (23) of the electrode plate (2) is separated from the second flow path (241) of the second end surface (24), and then discharged from the water inlet and outlet groove (221) to cool the fuel cell stack. The temperature of the reaction.
實施例二為該燃料電池堆為由複數單電池（Ａ）與冷卻系統（Ｂ）交錯排列串聯所構成，即為一單電池（Ａ）對應串聯一冷卻系統（Ｂ），再依序重複串聯。當組裝時，如上述之一單電池（Ａ）的模式，於該單電池（Ａ）前後均可組設冷卻系統（Ｂ），而其冷卻系統（Ｂ）之雙極板（２）係與單電池（Ａ）共用，即讓冷卻系統（Ｂ）與上一單電池（Ａ）及下一單電池（Ａ）均共用一雙極板（２），而其作動與反應與上述實施例一相同；藉此，利用雙極板（２）雙向流道的技術，使其讓兩單電池（Ａ）間可共用雙極板（２），達到縮小燃料電池堆的體積，相對也可增加效能者。In the second embodiment, the fuel cell stack is composed of a plurality of single cells (A) and a cooling system (B) arranged in series, that is, a single battery (A) corresponds to a series cooling system (B), and then serially repeats the series. . When assembled, as in the mode of the single cell (A) described above, the cooling system (B) can be set up before and after the single cell (A), and the bipolar plate (2) of the cooling system (B) is The single battery (A) is shared, that is, the cooling system (B) shares a double plate (2) with the previous single battery (A) and the next single battery (A), and its operation and reaction are the same as in the first embodiment. The same; thereby, the bipolar plate (2) bidirectional flow channel technology, so that the two single cells (A) can share the bipolar plate (2), to reduce the size of the fuel cell stack, can also increase the efficiency By.
值得注意的，本發明之雙極板（２）係以金屬基材製成，具有厚度小、質量輕之優點，不僅可縮減燃料電池之體積，亦能達到輕量化之需求，且只需設計（開模）一種雙極板即可供燃料電池之陽、陰極使用，可避免如傳統之燃料電池需要用到兩種不同設計的雙極板，有效降低燃料電池因模具複雜性所產生之製造成本；此外，雙極板（２）間係以銲接接合或導電膠黏合，銲接接合之銲點可供雙極板間傳遞電子之用；再者，銲接方式較佳可以雷射點銲接合二雙極板，因雷射銲接（ＬＢＷ）因具能量密度高，入熱量低、熱影響小等優點，可有效降低銲道熱裂與銲接敏化的發生。It should be noted that the bipolar plate (2) of the present invention is made of a metal substrate and has the advantages of small thickness and light weight, which not only reduces the volume of the fuel cell, but also meets the demand for weight reduction, and only needs to be designed. (Opening the mold) A bipolar plate can be used for the anode and cathode of the fuel cell, which can avoid the need for two different designs of bipolar plates for the conventional fuel cell, thereby effectively reducing the manufacturing of the fuel cell due to the complexity of the mold. Cost; in addition, the bipolar plates (2) are bonded by solder joints or conductive adhesives, and the solder joints can be used to transfer electrons between the bipolar plates; further, the soldering method is better for laser spot welding. Bipolar plates, because of the high energy density, low heat input and low thermal impact of laser welding (LBW), can effectively reduce the occurrence of weld hot cracking and welding sensitization.
前述之實施例或圖式並非限定本發明之結構樣態，任何所屬技術領域中具有通常知識者之適當變化或修飾，皆應視為不脫離本發明之專利範疇。The above-mentioned embodiments or the drawings are not intended to limit the structure of the present invention, and any suitable variations or modifications of those skilled in the art should be considered as not departing from the scope of the invention.
藉由以上所述，本發明結構之組成與使用實施說明可知，本發明與現有結構相較之下，係具有以下優點，敘述如下：From the above, the composition and use of the structure of the present invention show that the present invention has the following advantages as compared with the prior art, and is described as follows:
1. 本發明之緊緻型雙極板，藉以利用雙極板雙向流道的技術，使其讓兩單電池間或單電池與冷卻系統間均可共用一雙極板，達到縮小燃料電池堆體積的功效者。1. The compact bipolar plate of the present invention utilizes the bidirectional flow path of the bipolar plate, so that a double plate can be shared between the two single cells or between the single cell and the cooling system, thereby reducing the fuel cell stack. The efficacy of the volume.
2. 本發明之緊緻型雙極板，藉以利用雙極板雙向流道的技術，使其讓兩單電池間或單電池與冷卻系統間均可共用一雙極板，當在一定體積範圍中，其本發明可容納多組單電池，相對具有高功率密度及增加燃料電池效能的功用者。2. The compact bipolar plate of the invention utilizes the bidirectional flow path technology of the bipolar plate, so that a double plate can be shared between the two single cells or between the single cell and the cooling system, when in a certain volume range The present invention can accommodate a plurality of sets of single cells, and is relatively powerful to those who have high power density and increased fuel cell performance.
3.本發明之緊緻型雙極板，藉以利用雙極板雙向流道的技術，而具有節省構件成本、組裝時效等優點者。3. The compact bipolar plate of the present invention utilizes the technique of bidirectional flow path of the bipolar plate, and has the advantages of saving component cost, assembly aging and the like.
綜上所述，本發明實施例確能達到所預期之使用功效，又其所揭露之具體構造，不僅未曾見諸於同類產品中，亦未曾公開於申請前，誠已完全符合專利法之規定與要求，爰依法提出發明專利之申請，懇請惠予審查，並賜准專利，則實感德便。In summary, the embodiments of the present invention can achieve the expected use efficiency, and the specific structure disclosed therein has not been seen in similar products, nor has it been disclosed before the application, and has completely complied with the provisions of the Patent Law. And the request, the application for the invention of a patent in accordance with the law, please forgive the review, and grant the patent, it is really sensible.
(A)．．．單電池(A). . . Single battery
(B)．．．冷卻系統(B). . . cooling system
(1)．．．質子交換膜(1). . . Proton exchange membrane
(2)．．．雙極板(2). . . Bipolar plate
(21)．．．上端部(twenty one). . . Upper end
(211)．．．水進入孔槽(211). . . Water entering the slot
(212)．．．第一進入孔槽(212). . . First entry slot
(213)．．．第二進入孔槽(213). . . Second entry slot
(22)．．．下端部(twenty two). . . Lower end
(221)．．．水出入孔槽(221). . . Water inlet and outlet
(222)．．．第一出入孔槽(222). . . First access slot
(223)．．．第二出入孔槽(223). . . Second access slot
(23)．．．第一端面(twenty three). . . First end face
(231)．．．第一流道(231). . . First runner
(24)．．．第二端面(twenty four). . . Second end face
(241)．．．第二流道(241). . . Second flow path
(3)．．．第一氣道墊片(3). . . First airway gasket
(31)．．．遮蔽段(31). . . Shaded section
(4)．．．第二氣道墊片(4). . . Second airway gasket
(41)．．．遮蔽段(41). . . Shaded section
(5)．．．水道墊片(5). . . Waterway gasket
(51)．．．遮蔽段(51). . . Shaded section
第一圖：本發明實施例一立體分解示意圖First drawing: a perspective exploded view of a first embodiment of the present invention
第二圖：本發明之雙極板與第一氣道墊片貼抵示意圖The second figure: the schematic diagram of the bipolar plate of the present invention and the first air channel gasket
第三圖：本發明之雙極板與第二氣道墊片貼抵示意圖The third figure: the schematic diagram of the bipolar plate and the second air channel gasket of the present invention
第四圖：本發明之單電池立體剖視示意圖Fourth figure: a schematic cross-sectional view of a single cell of the present invention
第五圖：本發明之雙極板與水道墊片貼抵示意圖Figure 5: Schematic diagram of the contact between the bipolar plate and the water channel gasket of the present invention
第六圖：本發明實施例二立體分解示意圖Figure 6 is a perspective exploded view of the second embodiment of the present invention
(A)．．．單電池(A). . . Single battery
(B)．．．冷卻系統(B). . . cooling system
(1)．．．質子交換膜(1). . . Proton exchange membrane
(2)．．．雙極板(2). . . Bipolar plate
(21)．．．上端部(twenty one). . . Upper end
(211)．．．水進入孔槽(211). . . Water entering the slot
(212)．．．第一進入孔槽(212). . . First entry slot
(213)．．．第二進入孔槽(213). . . Second entry slot
(22)．．．下端部(twenty two). . . Lower end
(221)．．．水出入孔槽(221). . . Water inlet and outlet
(222)．．．第一出入孔槽(222). . . First access slot
(223)．．．第二出入孔槽(223). . . Second access slot
(23)．．．第一端面(twenty three). . . First end face
(231)．．．第一流道(231). . . First runner
(24)．．．第二端面(twenty four). . . Second end face
(241)．．．第二流道(241). . . Second flow path
(3)．．．第一氣道墊片(3). . . First airway gasket
(31)．．．遮蔽段(31). . . Shaded section
(4)．．．第二氣道墊片(4). . . Second airway gasket
(41)．．．遮蔽段(41). . . Shaded section
(5)．．．水道墊片(5). . . Waterway gasket
(51)．．．遮蔽段(51). . . Shaded section
Claims (7)
該雙極板上端部分別設有對應供水及氣體導入的水進入孔槽及第一、第二進入孔槽，而下端部分別設有對應供水及氣體排出的水出入孔槽及第一、第二出入孔槽，且雙極板第一端面上設有凹陷連通的第一流道，且第一端面對應與單電池之第一氣道墊片相貼，而該第一氣道墊片上設有遮蔽第二進、出入孔槽及水進、出入孔槽的遮蔽段，以使氣體經雙極板第一進入孔槽導入而流通於第一端面之第一流道，且由第一出入孔槽排出，而其雙極板第二端面具有與第一流道相對凹凸錯位而設的第二流道，且第二端面對應與單電池之第二氣道墊片相貼，而該第二氣道墊片上設有遮蔽第一進、出入孔槽及水進、出入孔槽的遮蔽段，以使氣體經雙極板第二進入孔槽導入而流通於第二端面之第二流道，且由第二出入孔槽排出者。A compact bipolar plate, the fuel cell stack is mainly composed of a plurality of single cells connected in series, and each single cell comprises a proton exchange membrane, and a bipolar plate located on both sides of the proton exchange membrane, and respectively located in the proton exchange The first and second airway gaskets between the membrane and the bipolar plate, and the two adjacent single cells share a bipolar plate, wherein:
The end portions of the bipolar plates are respectively provided with water inlet holes and first and second inlet holes corresponding to water supply and gas introduction, and the lower end portions are respectively provided with water inlet and outlet grooves corresponding to water supply and gas discharge, and first and second The second inlet and outlet slots are provided, and the first end surface of the bipolar plate is provided with a first flow passage which is connected by a recess, and the first end surface corresponds to the first air passage gasket of the single battery, and the first air passage gasket is provided with shielding The second inlet and outlet slots and the shielding section of the water inlet and outlet slots are such that the gas is introduced through the first inlet slot of the bipolar plate and flows through the first flow passage of the first end surface, and is discharged by the first inlet and outlet slots. And the second end surface of the bipolar plate has a second flow path disposed opposite to the first flow path, and the second end surface corresponds to the second air channel gasket of the single battery, and the second air passage gasket is disposed on the second air passage gasket a shielding section for shielding the first inlet and outlet groove and the water inlet and outlet slots, so that the gas is introduced through the second inlet slot of the bipolar plate and flows through the second flow passage of the second end surface, and is second Out of the hole slot discharge.
該雙極板上端部分別設有對應供水及氣體導入的水進入孔槽及第一、第二進入孔槽，而下端部分別設有對應供水及氣體排出的水出入孔槽及第一、第二出入孔槽，且雙極板第一端面上設有凹陷連通的第一流道，且第一端面對應與單電池之第一氣道墊片相貼，而該第一氣道墊片上設有遮蔽第二進、出入孔槽及水進、出入孔槽的遮蔽段，以使氣體經雙極板第一進入孔槽導入而流通於第一端面之第一流道，且由第一出入孔槽排出，而其雙極板第二端面具有與第一流道相對凹凸錯位而設的第二流道，且第二端面對應與單電池之第二氣道墊片相貼，而該第二氣道墊片上設有遮蔽第一進、出入孔槽及水進、出入孔槽的遮蔽段，以使氣體經雙極板第二進入孔槽導入而流通於第二端面之第二流道，且由第二出入孔槽排出者。A compact bipolar plate, the fuel cell stack is mainly composed of a plurality of single cells and a cooling system staggered in series, and each of the cells comprises a proton exchange membrane and a bipolar plate located on both sides of the proton exchange membrane. And first and second air passage gaskets respectively located between the proton exchange membrane and the bipolar plate, and the cooling system comprises a water channel gasket and a bipolar plate on both sides of the water channel gasket, and the two adjacent cells and cooling A pair of plates are shared between the systems, of which:
The end portions of the bipolar plates are respectively provided with water inlet holes and first and second inlet holes corresponding to water supply and gas introduction, and the lower end portions are respectively provided with water inlet and outlet grooves corresponding to water supply and gas discharge, and first and second The second inlet and outlet slots are provided, and the first end surface of the bipolar plate is provided with a first flow passage which is connected by a recess, and the first end surface corresponds to the first air passage gasket of the single battery, and the first air passage gasket is provided with shielding The second inlet and outlet slots and the shielding section of the water inlet and outlet slots are such that the gas is introduced through the first inlet slot of the bipolar plate and flows through the first flow passage of the first end surface, and is discharged by the first inlet and outlet slots. And the second end surface of the bipolar plate has a second flow path disposed opposite to the first flow path, and the second end surface corresponds to the second air channel gasket of the single battery, and the second air passage gasket is disposed on the second air passage gasket a shielding section for shielding the first inlet and outlet groove and the water inlet and outlet slots, so that the gas is introduced through the second inlet slot of the bipolar plate and flows through the second flow passage of the second end surface, and is second Out of the hole slot discharge.
The compact bipolar plate according to claim 5 or 6, wherein the bipolar plate is made of a metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101140972A TWI527301B (en) | 2012-11-05 | 2012-11-05 | Compact bipolar plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101140972A TWI527301B (en) | 2012-11-05 | 2012-11-05 | Compact bipolar plate |
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| Publication Number | Publication Date |
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| TW201419643A true TW201419643A (en) | 2014-05-16 |
| TWI527301B TWI527301B (en) | 2016-03-21 |
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| TW101140972A TWI527301B (en) | 2012-11-05 | 2012-11-05 | Compact bipolar plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113422086A (en) * | 2021-07-23 | 2021-09-21 | 安泰环境工程技术有限公司 | Metal bipolar plate structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113422086A (en) * | 2021-07-23 | 2021-09-21 | 安泰环境工程技术有限公司 | Metal bipolar plate structure |
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| TWI527301B (en) | 2016-03-21 |
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