TWI727757B - Carbon fiber fuel cell stack - Google Patents
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- TWI727757B TWI727757B TW109113330A TW109113330A TWI727757B TW I727757 B TWI727757 B TW I727757B TW 109113330 A TW109113330 A TW 109113330A TW 109113330 A TW109113330 A TW 109113330A TW I727757 B TWI727757 B TW I727757B
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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
Description
本發明係有關於一種碳纖維燃料電池堆，尤其是指一種應用於低功率範圍，不僅可達重量輕、體積微小化，以方便進行攜帶，且更可兼具導電性與優異的抗腐蝕性，可助於長時間運作的穩定，提升產品競爭力，而在其整體施行使用上更增實用功效特性者。 The present invention relates to a carbon fiber fuel cell stack, in particular to a carbon fiber fuel cell stack, which is used in a low-power range, which can not only achieve light weight and miniaturization to facilitate carrying, but also has both electrical conductivity and excellent corrosion resistance. It can contribute to the stability of long-term operation, enhance the competitiveness of the product, and increase the practical function characteristics in its overall implementation.
按，近年來，可攜式電子產品與周邊軟硬體裝置，已成為絕大多數人們日常生活中的必需品，包含在工作、學校、洽公、休閒旅遊、用餐、醫療照護、社交活動等，皆會使用與攜帶不同需求的可攜式電子產品；而在開發多元化可攜式電子產品時，發展體積小且高容量的二次電池，成為非常重要的一環，同時電池的穩定性、安全性與壽命也是需要考慮的重點，如Samsung公司在2016年發生Galaxy Note 7手機電池瑕疵與接連的爆炸事件，導致產品回收與停產，而Apple公司亦曾發生iphone手機因變更iOS系統使部分舊款手機降速以延長電池壽命，導致需大幅下降更換電池的費用， 也造成公司的聲譽嚴重受損。由此可知，二次電池容量的發展有其極限，搭配輕便的充電裝置以延長其使用時間，是未來重要發展的主題。 In recent years, portable electronic products and peripheral hardware and software devices have become necessities in most people’s daily lives, including work, school, business meetings, leisure travel, meals, medical care, social activities, etc. Everyone will use and carry portable electronic products with different needs. In the development of diversified portable electronic products, the development of small and high-capacity secondary batteries has become a very important part. At the same time, the stability and safety of the battery Sex and longevity are also key points to be considered. For example, Samsung’s Galaxy Note 7 mobile phone battery defect and successive explosions in 2016 led to product recycling and discontinuation, and Apple also experienced some old models of iPhones due to changes in the iOS system. The speed of mobile phones is reduced to extend battery life, which leads to a significant reduction in the cost of battery replacement. It also caused serious damage to the company's reputation. It can be seen that the development of secondary battery capacity has its limits, and the use of portable charging devices to extend its use time is the subject of important development in the future.
而可攜式燃料電池，可以藉由補充燃料持續發電，製作成充電裝置，是被認為能夠搭配二次電池充電裝置的方案之一，相當具有應用潛力，許多國際知名的電子企業，在過去10多年間，皆曾致力於發展可攜式燃料電池，用於攜帶式電子產品如筆記型電腦、手機等充電使用；燃料電池其原理是利用儲存在燃料中的能量，藉由電化學轉化為電能，具有轉換效率高、潔淨、低噪音與構造較為簡單等優點，且不同於二次電池需要進行充電儲能，燃料電池之活性物儲存於燃料中，僅需不斷地補充燃料維持電化學反應，即可持續進行發電。 The portable fuel cell, which can continuously generate electricity by supplementing fuel, can be made into a charging device. It is considered to be one of the solutions that can be used with secondary battery charging devices. It has considerable application potential. Many internationally renowned electronics companies have used it in the past 10 years. For many years, they have been committed to the development of portable fuel cells, which are used for charging portable electronic products such as laptops and mobile phones. The principle of fuel cells is to use the energy stored in fuel and convert it into electrical energy through electrochemistry. , It has the advantages of high conversion efficiency, cleanliness, low noise and relatively simple structure, and is different from the secondary battery which needs to be charged and stored. The active material of the fuel cell is stored in the fuel, and it only needs to be continuously replenished to maintain the electrochemical reaction. That is, sustainable power generation.
在發展可攜式燃料電池的過程中，直接甲醇燃料電池〔Direct Methanol Fuel Cell，DMFC〕曾經被廣為看好極具潛力，因為其採用甲醇水溶液為燃料而非氫氣，無需使用高壓鋼瓶或儲氫合金瓶來儲存燃料，亦可省去了調壓閥與控制閥等組件，因此有燃料儲存容易、便於攜帶、體積較小與系統簡單等主要優點。然而相較於以氫為燃料的質子交換膜燃料電池〔Proton Exchange Membrane Fuel Cell，PEMFC〕，DMFC所需的觸媒量要高出數倍，且陽極端觸媒除鉑〔Pt〕外，尚需要加入釕〔Ru〕，以抑制反應時的中間產物一氧化碳〔CO〕的毒化，因此不僅效能較低，成本亦高出許多。 DMFC反應時，陽極端會產生二氧化碳〔CO2〕，在甲醇燃料水溶液中會形成氣泡，容易造成管路燃料傳輸的阻塞，且DMFC中陽極的甲醇燃料也容易穿透質子交換膜到陰極端，亦即甲醇穿透〔methanol crossover〕，導致陰極端Pt觸媒的毒化，所以一般都採用低濃度的甲醇。此外，DMFC運作時，陰極端的電化學反應會產生較多的水，因此避免水氾濫〔Flooding〕是相當重要的議題。良好陽極流道的設計，使得燃料可以均勻地傳輸與移除氣泡，而陰極端需要有足夠的空氣且能適當移除水氣，流道中的空氣流速與流量，亦需要妥善的設計，才得以有良好的效能與穩定性。DMFC雖然看似簡單，但仍存在不少問題需要克服，單顆DMFC的實際操作電壓相當低，約0.2V~0.3V，要將其應用至可攜式電子產品的USB大約5V之輸入電壓，必須先將多顆單電池予以串聯，再由升壓電路升壓至5V，如此易使DMFC模組與系統的設計與製作產生問題。然而PEMFC單顆電池的操作電壓，約可設計在0.5V~0.7V間，若予以微型化，則較容易地克服許多上述的問題。 In the process of developing portable fuel cells, Direct Methanol Fuel Cell (DMFC) was once widely regarded as having great potential because it uses methanol aqueous solution as fuel instead of hydrogen, and does not require the use of high-pressure cylinders or hydrogen storage. The alloy bottle is used to store fuel, and components such as pressure regulating valve and control valve can also be omitted. Therefore, it has the main advantages of easy fuel storage, portability, small size and simple system. However, compared with the Proton Exchange Membrane Fuel Cell (PEMFC) that uses hydrogen as fuel, the amount of catalyst required for DMFC is several times higher, and the catalyst at the anode end is not limited to platinum (Pt). Ruthenium (Ru) needs to be added to inhibit the poisoning of carbon monoxide (CO), which is an intermediate product during the reaction. Therefore, not only the efficiency is lower, but the cost is also much higher. During the reaction of DMFC, carbon dioxide (CO 2 ) is generated at the anode end, and bubbles are formed in the methanol fuel aqueous solution, which easily causes the blockage of pipeline fuel transmission. In addition, the methanol fuel at the anode in DMFC can easily penetrate the proton exchange membrane to the cathode end. In other words, methanol crossover results in the poisoning of the Pt catalyst at the cathode, so low-concentration methanol is generally used. In addition, when the DMFC is operating, the electrochemical reaction at the cathode will produce more water, so avoiding flooding is a very important issue. A good anode flow channel design allows the fuel to be evenly transported and remove bubbles, and the cathode end needs to have enough air and can properly remove water vapor. The air velocity and flow rate in the flow channel also need to be properly designed. Have good performance and stability. Although DMFC may seem simple, there are still many problems that need to be overcome. The actual operating voltage of a single DMFC is quite low, about 0.2V~0.3V. To apply it to portable electronic products, the USB input voltage is about 5V. It is necessary to connect multiple single cells in series first, and then boost the voltage to 5V by the booster circuit. This is likely to cause problems in the design and manufacture of the DMFC module and system. However, the operating voltage of a single PEMFC battery can be designed to be between 0.5V and 0.7V. If it is miniaturized, many of the above-mentioned problems can be easily overcome.
在低功率應用範圍的可攜式燃料電池，一般為了要減少體積、簡化系統、並減少Balance of Plant〔BOP〕的耗電以提升發電效率，會採用平面自主呼吸式燃料電池〔Planar Self-Air-Breathing Fuel Cell〕模組，而非採用傳統的直立堆疊式燃料電池組，省去陰極端所需的風扇或空氣泵，達到輕薄的目的。在發展平面式燃料電池的領域中，應用PCB的技術於燃料電池的構裝中，是相當受到重視的主題，其主因是PCB可以將電池cell之間予以聯結及整合電路， 使整個體積縮小，有助於燃料電池模組的微小化，且PCB技術相當成熟，適合量產。 In the low-power application range of portable fuel cells, generally in order to reduce the size, simplify the system, and reduce the power consumption of Balance of Plant (BOP) to improve power generation efficiency, planar self-breathing fuel cells (Planar Self-Air) are used. -Breathing Fuel Cell module, instead of using the traditional vertical stacked fuel cell stack, eliminating the need for a fan or air pump at the cathode end, achieving the goal of lightness and thinness. In the field of the development of planar fuel cells, the application of PCB technology in the assembly of fuel cells is a subject that has received considerable attention. The main reason is that PCBs can connect battery cells and integrate circuits. The reduction of the entire volume contributes to the miniaturization of fuel cell modules, and the PCB technology is quite mature and suitable for mass production.
除了上述所提到以MEMS及PCB技術製作微型燃料電池集電板外，一般燃料電池雙極板/集電板在設計與製作時所需要考量之處係如：較為常見的雙極板皆含有流道設計，具有傳輸燃料供應與收集電子的功能，膜電極組被夾合在兩者之間，電子經由陽極金屬集電板接至外部電路陰極形成一個迴路後即可發電。目前常見的雙極板主要材料的分類，包含石墨-高分子複合材料集電板、金屬集電板與複合型集電板。燃料電池所產生的電力均需透過集電板或稱雙極板的媒介將電源輸出至外部，因此一般而言適用於質子交換膜燃料電池的雙極板應具備下列基本功能，以提升電池性能：(1)分隔氧化劑與還原劑，避免氫氣經由極板產生crossover的影響；(2)優良的機械強度，使雙極板得以與MEA均衡接觸，以收集電流；(3)適當的流道設計，使燃料能均勻地分佈至各Cell之中，產生均勻的電化學反應，並且在陰極得以帶走生成物水，以避免積水的現象，導致電池效能減低；(4)良好的熱傳導效能，使電池內溫度均勻，並且可以達成散熱與溫度控制效果；(5)優良的導電性以收集電流輸出至外部使用；(6)適合的電極板開孔率，流場溝槽面積與電極總面積之比例，應有一適當比例，開孔過高，會造成MEA與雙極板之接觸電阻抗過高而減低性能，開孔過低則會降低MEA觸媒的利用率以及內部流場的阻力過高，也會減低電池效能。 In addition to the above-mentioned use of MEMS and PCB technology to make miniature fuel cell collector plates, general fuel cell bipolar plates/collector plates need to be considered when designing and manufacturing such as: The more common bipolar plates contain The flow channel design has the function of transmitting fuel supply and collecting electrons. The membrane electrode group is sandwiched between the two. The electrons are connected to the external circuit cathode through the anode metal collector plate to form a loop to generate electricity. At present, the classification of the main materials of common bipolar plates includes graphite-polymer composite collector plates, metal collector plates and composite collector plates. The electricity generated by the fuel cell needs to be output to the outside through a medium called a collector plate or bipolar plate. Therefore, in general, a bipolar plate suitable for proton exchange membrane fuel cells should have the following basic functions to improve battery performance : (1) Separate the oxidizer and the reducing agent to avoid the crossover effect of hydrogen through the polar plate; (2) Excellent mechanical strength, so that the bipolar plate can be in balanced contact with the MEA to collect current; (3) Appropriate flow channel design , So that the fuel can be evenly distributed in each Cell, produce a uniform electrochemical reaction, and can take away the product water at the cathode to avoid the phenomenon of water accumulation, resulting in the reduction of battery efficiency; (4) Good heat conduction efficiency, so that The temperature in the battery is uniform, and the effect of heat dissipation and temperature control can be achieved; (5) Excellent electrical conductivity to collect current and output for external use; (6) Suitable electrode plate opening ratio, flow field groove area and total electrode area There should be an appropriate ratio. If the opening is too high, the contact resistance between the MEA and the bipolar plate will be too high and the performance will be reduced. If the opening is too low, the utilization of the MEA catalyst will be reduced and the resistance of the internal flow field will be too high. , It will also reduce battery performance.
碳〔石墨〕雙極板其最大的優點就是具有高導電性與良好化學穩定性，也就是高抗腐蝕性，但是其最大的缺點就是脆性高容易破碎，而且其滲透性高，易導致氫氣洩漏，因此將碳纖維強化複合材料〔Carbon Fiber-Reinforced Composites〕，以下將稱為碳纖維複合材料或碳纖維複材〔Carbon Fiber Composites〕，應用至雙極板，是一個相當受到矚目的研究主題，因其可在維持優異的耐腐蝕特性下，使雙極板不再為脆性，而是具有良好的機械強度。然而，由於碳纖維複合材料是由具高導電性的碳〔石墨〕纖維強化材〔Reinforcement〕與不導電樹脂基材〔Matrix〕所組成，因此其導電性較傳統碳雙極板低了許多。 The biggest advantage of carbon (graphite) bipolar plate is that it has high conductivity and good chemical stability, that is, high corrosion resistance, but its biggest disadvantage is that it is brittle and easy to break, and its high permeability is easy to cause hydrogen leakage. Therefore, the application of carbon fiber-reinforced composites [Carbon Fiber-Reinforced Composites], which will be referred to as carbon fiber composites or carbon fiber composites [Carbon Fiber Composites], to bipolar plates is a research subject that has attracted much attention because of its potential Under the maintenance of excellent corrosion resistance, the bipolar plate is no longer brittle, but has good mechanical strength. However, because the carbon fiber composite material is composed of a highly conductive carbon [graphite] fiber reinforcement [Reinforcement] and a non-conductive resin substrate [Matrix], its conductivity is much lower than that of the traditional carbon bipolar plate.
由上述可以得知，在發展低功率應用範圍的可攜式燃料電池時，重量輕與體積微小化是相當重要的一環，且是朝平面自主呼吸式的方向發展，應用MEMS與PCB製程於燃料電池的構裝，也是一個發展的主流趨勢。就技術面而言，若採用MEMS製程中常用的矽晶圓做成矽基板，會因為其脆性影響機械性能，而不易進行組裝疊層。若採用PCB製程中的FR4/Epoxy複材製作成基板，將可以確保機械強度提升組裝性。 From the above, it can be seen that in the development of portable fuel cells with low power applications, light weight and miniaturization are a very important part, and it is developing in the direction of planar spontaneous breathing, using MEMS and PCB processes in fuels. The construction of the battery is also a mainstream trend of development. In terms of technology, if silicon wafers commonly used in the MEMS process are used to make silicon substrates, it will be difficult to assemble and stack because of its brittleness that affects mechanical properties. If the FR4/Epoxy composite material in the PCB manufacturing process is used to make the substrate, it will ensure the mechanical strength and improve the assembly performance.
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，針對現有之結構及缺失予以研究改良，提供一種碳纖維燃料電池堆，以期達到更佳實用價值性之目的者。 The reason is that, in view of this, the inventor upholds many years of rich experience in design, development and actual production in the related industry, researches and improves the existing structure and deficiencies, and provides a carbon fiber fuel cell stack in order to achieve better practical value. .
本發明之主要目的在於提供一種碳纖維燃料電池堆，其主要係應用於低功率範圍，不僅可達重量輕、體積微小化，以方便進行攜帶，且更可兼具導電性與優異的抗腐蝕性，可助於長時間運作的穩定，提升產品競爭力，而在其整體施行使用上更增實用功效特性者。 The main purpose of the present invention is to provide a carbon fiber fuel cell stack, which is mainly used in the low power range, not only can achieve light weight and miniaturization, so as to facilitate carrying, but also has both electrical conductivity and excellent corrosion resistance. , Can contribute to the stability of long-term operation, enhance the competitiveness of products, and increase the practical function characteristics in its overall implementation.
本發明碳纖維燃料電池堆之主要目的與功效，係由以下具體技術手段所達成：其主要係包括有電池；其中：該電池，其設有雙面流道板，該雙面流道板係由碳纖維布搭配樹脂所製成，於該雙面流道板兩側貫穿開設有雙面流道，對應該雙面流道板兩側皆設有第一墊片，該第一墊片中間位置對應該雙面流道開設有第一開槽，於該第一墊片外側對應該第一開槽皆設有膜電極組〔Membrane Electrolyte Assembly，MEA〕，於該膜電極組外側設有第二墊片，該第二墊片對應該膜電極組開設有第二開槽，而於該第二墊片外側則設有流道板，該流道板係由碳纖維布搭配樹脂所製成，該流道板於內側對應該第二開槽凹設有與該雙面流道相配合之流道，再於該流道板外側設有端板，利用定位件穿過兩側之該端板，而將該雙面流道板、該第一墊片、該膜電極組、該第二墊片、該流道板夾掣固定在兩該端板之間，將石墨顆粒混合於甲乙酮〔Methyl Ethyl Ketone，MEK〕溶劑中，再噴塗於該雙面流道板及該流道板表面，以增加導電性。 The main purpose and effect of the carbon fiber fuel cell stack of the present invention are achieved by the following specific technical means: it mainly includes a battery; among them: the battery is provided with a double-sided flow channel plate, and the double-sided flow channel plate is Made of carbon fiber cloth and resin, double-sided runners are formed on both sides of the double-sided runner plate. Correspondingly, there are first gaskets on both sides of the double-sided runner plate. The middle position of the first gasket is opposite to There should be a first slot on the double-sided flow channel, and a membrane electrode assembly [Membrane Electrolyte Assembly, MEA] is provided on the outside of the first gasket corresponding to the first slot, and a second pad is provided on the outside of the membrane electrode assembly The second gasket is provided with a second slot corresponding to the membrane electrode assembly, and a flow channel plate is provided on the outside of the second gasket. The flow channel plate is made of carbon fiber cloth and resin. The inner side of the channel plate corresponds to the second groove and is recessed with a flow channel matching the double-sided flow channel, and then an end plate is provided on the outer side of the flow channel plate, and the positioning piece is used to pass through the end plates on both sides, and The double-sided flow channel plate, the first gasket, the membrane electrode group, the second gasket, and the flow channel plate clamp are fixed between the two end plates, and the graphite particles are mixed with methyl ethyl ketone (Methyl Ethyl Ketone). , MEK] solvent, and then spray on the double-sided runner plate and the surface of the runner plate to increase conductivity.
本發明碳纖維燃料電池堆之另一目的與功效，係由以下具體技術手段所達成：其主要係包括有電池；其中：該電池，其設有雙面流道板，該雙面流道板係由碳纖維布搭配樹脂所製成，於該雙面流道板兩側貫穿開設有雙面流道，對應該雙面流道板兩側皆設有第一墊片，該第一墊片中間位置對應該雙面流道開設有第一開槽，於該第一墊片外側對應該第一開槽皆設有膜電極組〔Membrane Electrolyte Assembly，MEA〕，於該膜電極組外側設有第二墊片，該第二墊片對應該膜電極組開設有第二開槽，而於該第二墊片外側則設有流道板，該流道板係由碳纖維布搭配樹脂所製成，該流道板於內側對應該第二開槽凹設有與該雙面流道相配合之流道，再於該流道板外側設有端板，利用定位件穿過兩側之該端板，而將該雙面流道板、該第一墊片、該膜電極組、該第二墊片、該流道板夾掣固定在兩該端板之間，添加具高導電性的多壁式奈米碳管於樹脂中對該雙面流道板及該流道板進行塗佈，以增加導電性。 Another objective and effect of the carbon fiber fuel cell stack of the present invention is achieved by the following specific technical means: it mainly includes a battery; among them: the battery is provided with a double-sided flow channel plate, and the double-sided flow channel plate is It is made of carbon fiber cloth and resin. Double-sided runners are formed on both sides of the double-sided runner plate. Correspondingly, the first gasket is provided on both sides of the double-sided runner plate. The middle of the first gasket is Corresponding to the double-sided runner, a first slot is provided, and a membrane electrode assembly (Membrane Electrolyte Assembly, MEA) is provided on the outer side of the first gasket corresponding to the first slot, and a second membrane electrode assembly (MEA) is provided on the outer side of the membrane electrode assembly. The second gasket is provided with a second slot corresponding to the membrane electrode assembly, and a flow channel plate is provided on the outside of the second gasket. The flow channel plate is made of carbon fiber cloth and resin. The inner side of the flow channel plate corresponds to the second slot, and a channel that matches the double-sided flow channel is provided on the inner side, and an end plate is provided on the outer side of the flow channel plate, and the positioning piece is used to pass through the end plates on both sides, The double-sided flow channel plate, the first gasket, the membrane electrode group, the second gasket, and the flow channel plate clamp are fixed between the two end plates, and a multi-wall type with high conductivity is added. Carbon nanotubes are coated in resin on the double-sided runner plate and the runner plate to increase conductivity.
本發明碳纖維燃料電池堆的較佳實施例，其中，該碳纖維布係為碳纖平紋布、碳纖單向補強布、碳纖展紗布、單方向瀝青碳纖維布任一種。 In a preferred embodiment of the carbon fiber fuel cell stack of the present invention, the carbon fiber cloth is any of carbon fiber plain weave cloth, carbon fiber unidirectional reinforcing cloth, carbon fiber spread gauze cloth, and unidirectional pitch carbon fiber cloth.
本發明碳纖維燃料電池堆的較佳實施例，其中，該樹脂係為環氧樹脂〔Epoxy Resin〕、酚醛樹脂〔Phenolic Resin〕任一種。 In a preferred embodiment of the carbon fiber fuel cell stack of the present invention, the resin is either epoxy resin [Epoxy Resin] or phenol resin [Phenolic Resin].
1:電池 1: battery
11:雙面流道板 11: Double-sided runner plate
111:雙面流道 111: Double-sided runner
12:第一墊片 12: The first gasket
121:第一開槽 121: The first slot
13:膜電極組 13: Membrane electrode group
14:第二墊片 14: second gasket
141:第二開槽 141: second slot
15:流道板 15: runner plate
151:流道 151: Runner
16:端板 16: end plate
17:定位件 17: positioning parts
第一圖：本發明之立體分解結構示意圖 Figure 1: The three-dimensional exploded structure diagram of the present invention
第二圖：本發明之等效電路圖 Figure 2: The equivalent circuit diagram of the present invention
第三圖：本發明之對應奈奎斯特〔Nyquist〕頻率圖 The third figure: the corresponding Nyquist (Nyquist) frequency diagram of the present invention
第四圖：本發明之碳纖平紋布搭配酚醛樹脂碳化與石墨極板之效能比較圖 Figure 4: Comparison of the efficiency of the carbon fiber plain weave fabric of the present invention with phenolic resin carbonization and graphite plates
第五圖：本發明之碳纖平紋布搭配酚醛樹脂碳化與不鏽鋼集電板之效能比較圖 Figure 5: Comparison of the efficiency of the carbon fiber plain weave fabric of the present invention with phenolic resin carbonization and stainless steel collector plates
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：首先，請參閱第一圖本發明之立體分解結構示意圖所示，本發明主要係包括有電池(1)；其中：該電池(1)，其設有雙面流道板(11)，於該雙面流道板(11)兩側貫穿開設有蜿蜒式之雙面流道(111)，對應該雙面流道板(11)兩側皆設有第一墊片(12)，該第一墊片(12)中間位置對應該雙面流道(111)開設有第一開槽(121)，於該第一墊片(12)外側對應該第一開槽(121)皆設有膜電極組〔Membrane Electrolyte Assembly，MEA〕(13)，於該膜電極組(13)外側設有第二墊片(14)，該第二墊片(14) 對應該膜電極組(13)開設有第二開槽(141)，而於該第二墊片(14)外側則設有流道板(15)，該流道板(15)於內側對應該第二開槽(141)凹設有與該雙面流道(111)相配合之流道(151)，再於該流道板(15)外側設有端板(16)，以利用定位件(17)穿過兩側之該端板(16)，而將該雙面流道板(11)、該第一墊片(12)、該膜電極組(13)、該第二墊片(14)、該流道板(15)夾掣固定在兩該端板(16)之間。 In order to make a more complete and clear disclosure of the technical content, the purpose of the invention and the effects achieved by the present invention, we will explain them in detail below, and please refer to the figures and figure numbers disclosed together: first, please refer to The first figure shows the three-dimensional exploded structure diagram of the present invention. The present invention mainly includes a battery (1); wherein: the battery (1) is provided with a double-sided flow channel plate (11) on the double-sided flow channel Both sides of the plate (11) are provided with serpentine double-sided runners (111). Corresponding to the double-sided runner plate (11), there are first gaskets (12) on both sides. The first gasket ( 12) The middle position corresponds to the double-sided flow channel (111) with a first slot (121), and the outer side of the first gasket (12) corresponds to the first slot (121) with a membrane electrode assembly (Membrane) Electrolyte Assembly, MEA] (13), a second gasket (14) is provided outside the membrane electrode assembly (13), and the second gasket (14) A second slot (141) is provided corresponding to the membrane electrode assembly (13), and a flow channel plate (15) is provided on the outside of the second gasket (14), and the flow channel plate (15) corresponds to The second slot (141) is recessed with a flow channel (151) that matches the double-sided flow channel (111), and an end plate (16) is provided on the outside of the flow channel plate (15) to use a positioning member (17) Pass through the end plates (16) on both sides, and the double-sided flow channel plate (11), the first gasket (12), the membrane electrode group (13), and the second gasket ( 14). The runner plate (15) is clamped and fixed between the two end plates (16).
該雙面流道板(11)及該流道板(15)皆係由碳纖維布搭配樹脂所製成，該碳纖維布可為碳纖平紋布、碳纖單向補強布、碳纖展紗布、單方向瀝青碳纖維布任一種，該樹脂則可為環氧樹脂〔Epoxy Resin〕、酚醛樹脂〔Phenolic Resin〕任一種，並可將石墨顆粒混合於甲乙酮〔Methyl Ethyl Ketone，MEK〕溶劑中，再噴塗於該雙面流道板(11)及該流道板(15)表面，或添加具高導電性的多壁式奈米碳管於樹脂中對該雙面流道板(11)及該流道板(15)進行塗佈，以增加該雙面流道板(11)及該流道板(15)之導電性。 The double-sided runner plate (11) and the runner plate (15) are made of carbon fiber cloth and resin. The carbon fiber cloth can be carbon fiber plain weave cloth, carbon fiber unidirectional reinforcing cloth, carbon fiber spread gauze cloth, and unidirectional asphalt Any kind of carbon fiber cloth, the resin can be either epoxy resin [Epoxy Resin] or phenolic resin [Phenolic Resin], and graphite particles can be mixed in methyl ethyl ketone [Methyl Ethyl Ketone, MEK] solvent, and then sprayed on the double The surface of the flow channel plate (11) and the flow channel plate (15), or add a multi-walled carbon nanotube with high conductivity in the resin to the double-sided flow channel plate (11) and the flow channel plate ( 15) Coating is performed to increase the conductivity of the double-sided runner plate (11) and the runner plate (15).
如此一來，使得本發明於操作使用上，請參閱第二圖本發明之等效電路圖及第三圖本發明之對應奈奎斯特〔Nyquist〕頻率圖所示，該電池(1)從陽極到陰極反應過程，其歐姆損耗及第一個半圓直徑代表陽極活化阻抗〔Rct,a〕，第二個半圓直徑代表陰極活化阻抗〔Rct,c〕，其明顯可以得知第二個半圓比第一個半圓直徑大的多，即表示陰極活化阻抗較陽極為高。另，請再一併參閱第四圖本發明之碳纖平紋布搭配酚醛樹脂碳化與石墨極板之效能比較 圖所示，可知經碳纖維酚醛樹脂極板經碳化二次後效能有顯著提升，碳化三次後，其效能與石墨極板相當，又，請再一併參閱第五圖本發明之碳纖平紋布搭配酚醛樹脂碳化與不鏽鋼集電板之效能比較圖所示，可知碳纖維酚醛樹脂集電板效能優於不銹鋼集電板。 In this way, the present invention can be used in operation. Please refer to the second figure of the present invention’s equivalent circuit diagram and the third figure of the present invention’s corresponding Nyquist (Nyquist) frequency diagram. The battery (1) is from the anode In the cathode reaction process, the ohmic loss and the first semicircle diameter represent the anode activation resistance [Rct, a], and the second semicircle diameter represents the cathode activation resistance [Rct, c]. It is obvious that the second semicircle is larger than the first half circle. A semicircle with a larger diameter means that the activation resistance of the cathode is higher than that of the anode. In addition, please also refer to the fourth figure. The performance comparison of the carbon fiber plain weave of the present invention with phenolic resin carbonization and graphite plates As shown in the figure, it can be seen that after the carbon fiber phenolic resin plate is carbonized twice, the performance is significantly improved. After three times of carbonization, the performance is equivalent to that of the graphite plate. Please also refer to the fifth figure for the carbon fiber plain weave of the present invention. As shown in the comparison chart of the efficiency of phenolic resin carbonization and stainless steel collector plates, it can be seen that the performance of carbon fiber phenolic resin collector plates is better than that of stainless steel collector plates.
藉由以上所述，本發明之使用實施說明可知，本發明與現有技術手段相較之下，本發明主要係應用於低功率範圍，不僅可達重量輕、體積微小化，以方便進行攜帶，且更可兼具導電性與優異的抗腐蝕性，可助於長時間運作的穩定，提升產品競爭力，而在其整體施行使用上更增實用功效特性者。 Based on the above, the description of the implementation of the present invention shows that, compared with the prior art, the present invention is mainly applied to the low power range, not only can achieve light weight, miniaturization, and convenient carrying, And it can also have both electrical conductivity and excellent corrosion resistance, which can help stabilize long-term operation, enhance product competitiveness, and increase practical performance characteristics in its overall implementation.
然而前述之實施例或圖式並非限定本發明之產品結構或使用方式，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。 However, the foregoing embodiments or drawings do not limit the product structure or usage mode of the present invention, and any appropriate changes or modifications by persons with ordinary knowledge in the relevant technical field should be regarded as not departing from the patent scope of the present invention.
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 indeed achieve the expected use effect, and the specific structure disclosed by it has not been seen in similar products, nor has it been disclosed before the application, since it has fully complied with the provisions of the patent law. In accordance with the requirements, Yan filed an application for a patent for invention in accordance with the law, and asked for favors for examination, and granted a patent for approval, which would be more virtuous.
1:電池 1: battery
11:雙面流道板 11: Double-sided runner plate
111:雙面流道 111: Double-sided runner
12:第一墊片 12: The first gasket
121:第一開槽 121: The first slot
13:膜電極組 13: Membrane electrode group
14:第二墊片 14: second gasket
141:第二開槽 141: second slot
15:流道板 15: runner plate
151:流道 151: Runner
16:端板 16: end plate
17:定位件 17: positioning parts
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| TW109113330A TWI727757B (en) | 2020-04-21 | 2020-04-21 | Carbon fiber fuel cell stack |
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| TW109113330A TWI727757B (en) | 2020-04-21 | 2020-04-21 | Carbon fiber fuel cell stack |
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| Publication Number | Publication Date |
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| TWI727757B true TWI727757B (en) | 2021-05-11 |
| TW202141832A TW202141832A (en) | 2021-11-01 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449844C (en) * | 2004-09-08 | 2009-01-07 | 三星Sdi株式会社 | fuel cell stack |
| CN110061258A (en) * | 2018-01-18 | 2019-07-26 | 上海汽车集团股份有限公司 | A kind of fuel battery pole board and preparation method thereof and a kind of fuel cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449844C (en) * | 2004-09-08 | 2009-01-07 | 三星Sdi株式会社 | fuel cell stack |
| CN110061258A (en) * | 2018-01-18 | 2019-07-26 | 上海汽车集团股份有限公司 | A kind of fuel battery pole board and preparation method thereof and a kind of fuel cell |
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