1282185 p32-010.doc 九、發明說明： 【發明所屬之技術領域】 本案係關於一種具碎形結構之燃料電池，尤指將燃料電池内部至少一 流場板的導流道的結構或至少一集電板之開孔結構設計成碎形（Fractal) 之形狀，增加反應的有效面積，藉以提昇燃料電池的供電時間者。1282185 p32-010.doc IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a fuel cell having a fractal structure, and more particularly to a structure or at least one set of a flow path of at least a first-class field plate inside a fuel cell. The opening structure of the electric board is designed in the shape of a fractal, which increases the effective area of the reaction, thereby improving the power supply time of the fuel cell.
【先前技術】 燃料電池是用汽油、酒精、天然氣、氫氣、沼氣物料轉換成電流。 可以替代汽車的_機，取代筆記型電腦的電池、手機電池 '計算機、汽 機車、游縛設備之發電用。充電時，只要清空充滿難品相容器，然 後再裝進燃料(減等_+)即可。㈣電池，鮮的說，就是—個發電機。 九、:料黾池疋火力、水力、核能外第四種發電方法。[Prior Art] A fuel cell is converted into a current by using gasoline, alcohol, natural gas, hydrogen, and biogas materials. It can replace the car's _ machine, replacing the laptop's battery, mobile phone battery 'computer, steam locomotive, and anchoring equipment for power generation. When charging, just empty the container filled with the difficult phase and then load the fuel (minus _+). (4) The battery, freshly said, is a generator. IX. The fourth generation method for power generation outside the firepower, water power and nuclear energy.
以虱氣為燃料、氧氣為氧化劑，通過化合作用發電，此種燃料電池又 ^#±^A^^,+t^(regenerative fuei ceu ^ rfc) 〇 生成水蒸氣’不排放碳化氫、—氧化碳、氮化物和二氧化碳等神物質， Γ缺無污騎水。氫氧燃料電池_非常清潔的副產品，幾乎無污 染且尚效率。 質子池作⑽理是以氫氣為簡，和減、輯化學反應後透過 產生絲，其_優點為發電效終且最終副產品只有熱 …不會對環境造成任何威脅，相當符合環保交通工具的需求。 目别電池够數使㈣酸魏，部分採闕氫電池，驗電池仍有成 1282185 p32-010.doc 本高及充«間長等問題；__魏做為_將可顧上述缺點。 燃料電池可細十九世紀歐物學家，早在觀年，c·麻油如 教授發現了簡電觸電化學效應，並_統麵金電極上的氯氣或氧 氣在進灯的化學反應過程中能夠產生電流，而在隔年咖彳獅咖 R.G麵⑼倾核朗實財，㈣將水請錢験魏並反過來將 氮氣與議㈣，目咖了麵峨_理，而w 電池「Fu刪」-詞是1889年虹· 和c. u黎兩位化學家所提出 的’以空氣與m相取代氧氣與氫氣並製造出第—個實用的燃料電 池 然而因石油的大量開採與内燃機的廣泛應用，燃料電池的發展曾為之 停^ ’但陸賴有轉魏有_研究與顧，其巾最具代表性的是觸 生太工任矛力w中所使用之燃料電池較一般化學電池輕，直化學特 性較錢神密度也較高，㈣池_產物水可偶太u之制水，因 籲此燃料電池扮演著太空船主_力的來源。 、“才之7日’燃料②池經過多年的發展，現今已出現許多不同的形式， 以电知質來區分，主要可分為驗性燃料電池(AFC)、質子交換膜燃料電池 (FC)、％祕料宅池(辦(：）、縣碳酸鹽燃料電池(MCFC)、固態氧化 物燃料電池(S〇FC)、直接甲醇燃料電池(DMFO，紅操作溫度來L分， 可分為低溫燃料電池(操作溫度在耽〜·。〇，常見的有 AFC、PEMFC、 D_c ’中溫燃料電池(操作温度靴〜滅），常見的有，高溫燃 料電池(操作溫度60〇t：〜1000^)。 1282185 p32-010.doc (1) 鹼性燃料電池(AFC) AFC以石、_作為電解#之載體，氫氧化够qh)溶液為電解 質，操作溫度在啊〜跳之間。A默純氫作為陽極燃料氣體，純氧作 為陰極氧化劑其燃料限制非常嚴格，電解質腐錄強，因此電池壽命較短。 (2) 質子交換膜燃料電池(PEMFC) PEMFC以質導度佳的固態高分子膜為電解質’操作溫度在赋以 下。PEMFC以富氫氣體為燃料，但不能有過量的c〇(容忍Uppm)其為 了避免造觸極觸毒化，PEMFC时—·體為水，因此水管理是影響 燃料電池效率的重要因素。 (3) 磷酸燃料電池(PAFC) PAFC以濃度1〇0 %的構酸為電解質其操作溫度大約在⑽。。〜a叱之 間。PAFC㈣似、在錢且㈣氣财⑺的濃度必須小於Q 5%，否則 會導致觸制巾毒，但由於受親性電解f的影響，雜的作时使pAFc 的奇命難已超過40000小時。 (4) 熔融碳酸鹽燃料電池(MCFC) MCFC所使用的電解質-般分佈在多孔陶竟材料（UA1〇2)的驗性碳酸 鹽，操作溫度在600°C〜80(TC。MCFC其燃料氣體Η”和c〇s需小於 〇.5ppm ’其溶融碳酸鹽具有腐蝕性，而且容易揮發，電池壽命較短。 (5) 固態氧化物燃料電池(SOFC) SOFC所使用之電解質為固態非多孔金屬氧化物，一般為ASY，操作 溫度在65(TC〜100(TC。SOFC其操作溫度很高，故金屬與陶瓷材料之間不 1282185 p32-010.doc * 易密封，且電池啟動時間較長不適合做緊急電源。 ‘ ⑹直接曱醇燃料電池(DMFC) DMFC是PEMFC㈣的延伸’是喊分子膜作⑽解質，操作溫度在 6〇°C〜90°C，且DMFC不需要額外的重組器，因此可減少系統能量的負=， 並可降低系統的重量，而且DMFC是以液態曱醇作為燃料，因此可解決質 子交換膜含水量不足，所導致質子交無解能力降低的_。^ 新型觸煤至今仍然不斷在開發，其中增強了甲醇的電催化 、 鲁 /性，以至大幅 提高了電池性能。 在上述各種燃料電池依照其電池特性與發電容量在市場各展露其頭 角，在可攜式電力的應用，有PEMFC、SOFC、DMFC，而在車_力應用， 有PEMFC，在商業用電力應用上，有MCFC、s〇FC，在工業用電力的部 分’有MCFC、SOFC，在分散型電廠，則有s〇FC。 進入了二十一世紀後的今天，全世界有許多使用燃料電池的經驗與應 • 用，而現今的社會也開始發展以燃料電池作為可攜帶式或多用途移動式電 子產品電力的發展，而DMFC具有系統結構簡單，體積能量單位密度高， 電池操作溫度低等特性，因此直接甲醇燃料電池特別適用於行動電話、 PDA、筆記型電腦的電力應用上。 第一圖為習用直接曱醇燃料電池(DMFC)之反應機制示意圖，基本構造 分為陽極11、陽極擴散層14、陽極觸媒層13、質子交換膜PEM、陰極觸 媒層15、陰極擴散層16、與陰極氣體流道12等。陽極為甲醇水溶液，甲 S享(CHsOH)與水(H2〇)經由陽極擴散層14至陽極觸媒層，甲醇(ch3OH)分子被 1282185 p32-010.doc ‘分解成帶正電的氫H質子、二氧化碳(叫、與電子e、氫離子穿過多孔性 - 的質子交換膜PEM至陰極；陰極之氣體經由陰極擴散層16至觸媒層15 , 氧〇分被裂解成帶負電的氧離子，電子經由外部電路至陰極，電子與氯離 子以及氧離子形成水h2〇。總化學反應如式⑴，陽極的燃料為甲醇與水， 陽極生成物為二氧化|;陰極之燃料為氧，生成物為水，其基本直接曱醇 燃料電池（Direct Methanol Fuel Cell，DMFC)的反應式如下：Using helium as fuel and oxygen as oxidant, through power generation and cooperation, this fuel cell is ^#±^A^^,+t^(regenerative fuei ceu ^ rfc) 〇 generates water vapor 'does not emit hydrocarbons, — God substances such as carbon oxides, nitrides and carbon dioxide are lacking in pollution. Hydrogen-oxygen fuel cell_ a very clean by-product that is virtually non-polluting and efficient. Proton pool work (10) is based on hydrogen, and the reduction and chemical reaction through the production of silk, its advantages are power generation and the final by-product only heat ... does not pose any threat to the environment, quite in line with the needs of environmentally friendly vehicles . The number of batteries is enough to make (four) acid Wei, part of the hydrogen battery, the battery is still 1282185 p32-010.doc This high and full «length and other issues; __ Wei as _ will take care of the above shortcomings. The fuel cell can be a nineteenth-century European scientist. As early as the year of the year, c. sesame oil has discovered the electrochemical effect of the simple electro-acoustic, and the chlorine or oxygen on the gold electrode can be in the chemical reaction process of the lamp. Produce electric current, and in the next year, the café lion RG face (9) plucked the core of the real wealth, (four) the water to ask for money, and in turn, the nitrogen and the discussion (four), the face is 峨 理, and w battery "Fu delete" - The word is proposed by the two chemists of Hong Kong and C. u Li in 1889 to replace oxygen and hydrogen with air and m phase to produce the first practical fuel cell. However, due to the extensive exploitation of oil and the wide application of internal combustion engines The development of fuel cells has stopped for it. 'But Lu Lai has changed Wei. _ Research and Gu, the most representative of its towel is the fuel cell used in the spear force w. The fuel cell is lighter than the general chemical battery. The chemical properties are also higher than that of the gods. (4) The pool_product water can be too much water, because the fuel cell plays the role of the space ship owner. After 7 years of development, the fuel pool has been developed for many years. Nowadays, there are many different forms, which are distinguished by electrical quality. They can be mainly divided into aplastic fuel cell (AFC) and proton exchange membrane fuel cell (FC). %% secret house pool (office (:), county carbonate fuel cell (MCFC), solid oxide fuel cell (S〇FC), direct methanol fuel cell (DMFO, red operating temperature to L points, can be divided into low temperature Fuel cell (operating temperature is 耽~·.〇, common with AFC, PEMFC, D_c 'medium temperature fuel cell (operating temperature boots ~ off), common, high temperature fuel cell (operating temperature 60〇t: ~1000^ 1282185 p32-010.doc (1) Alkaline fuel cell (AFC) AFC uses stone, _ as the carrier of electrolysis #, hydrogen peroxide enough qh) solution as electrolyte, operating temperature is between ah and hop. Hydrogen is used as the anode fuel gas, and pure oxygen is used as the cathode oxidant. The fuel limit is very strict, and the electrolyte rot is strong, so the battery life is short. (2) Proton exchange membrane fuel cell (PEMFC) PEMFC is a solid polymer membrane with good quality. For the electrolyte 'operation temperature is assigned below. PEMFC is rich The gas is fuel, but there is no excessive c〇 (tolerance of Uppm). In order to avoid the extreme poisoning of the touch, the PEMFC is water, so water management is an important factor affecting the efficiency of the fuel cell. (3) Phosphoric acid fuel cell (PAFC) PAFC with a concentration of 1〇0% of the acid as the electrolyte, its operating temperature is about (10). ~a叱 between. PAFC (four) like, in the money and (four) gas (7) concentration must be less than Q 5%, otherwise it will lead to Touching the Tobacco, but due to the influence of the electrophilic electrolysis f, the miscellaneous life of pAFc has been more than 40,000 hours. (4) Molten carbonate fuel cell (MCFC) The electrolyte used in MCFC is generally distributed in Porous ceramic material (UA1〇2) of the test carbonate, operating temperature is 600 ° C ~ 80 (TC. MCFC its fuel gas Η) and c 〇 s need to be less than 〇. 5ppm 'the molten carbonate is corrosive, It is easy to volatilize and has a short battery life. (5) Solid oxide fuel cell (SOFC) The electrolyte used in SOFC is a solid non-porous metal oxide, generally ASY, operating at 65 (TC~100 (TC. SOFC) The operating temperature is very high, so there is no 1282185 p32-0 between metal and ceramic material. 10.doc * Easy to seal, and long battery start-up time is not suitable for emergency power supply. ' (6) Direct sterol fuel cell (DMFC) DMFC is an extension of PEMFC (four) ' is called molecular membrane for (10) desolvation, operating temperature is 6 ° ° C ~90 ° C, and DMFC does not require an additional recombiner, so it can reduce the negative energy of the system, and can reduce the weight of the system, and the DMFC is based on liquid decyl alcohol, so it can solve the problem of insufficient water content of the proton exchange membrane. _ which leads to a decrease in the proton exchange ability. ^ The new type of coal touch is still being developed, which enhances the electrocatalysis, lu/s, and even the battery performance. In the above various fuel cells in the market according to their battery characteristics and power generation capacity in the market, in the portable power applications, there are PEMFC, SOFC, DMFC, and in the car - force application, there is PEMFC, in commercial power applications There are MCFC, s〇FC, and there are MCFC and SOFC in the part of industrial power, and s〇FC in decentralized power plants. Today, after entering the 21st century, there are many experiences and applications in the world that use fuel cells, and today's society is also beginning to develop fuel cells as portable or multi-purpose mobile electronic products. DMFC has the characteristics of simple system structure, high volumetric energy unit density and low battery operating temperature. Therefore, direct methanol fuel cell is especially suitable for power applications of mobile phones, PDAs and notebook computers. The first figure is a schematic diagram of the reaction mechanism of a conventional direct methanol fuel cell (DMFC). The basic structure is divided into an anode 11, an anode diffusion layer 14, an anode catalyst layer 13, a proton exchange membrane PEM, a cathode catalyst layer 15, and a cathode diffusion layer. 16. With the cathode gas flow path 12 and the like. The anode is an aqueous methanol solution, and the CH(OH) and water (H2〇) pass through the anode diffusion layer 14 to the anode catalyst layer, and the methanol (ch3OH) molecule is decomposed into positively charged hydrogen H protons by 1282185 p32-010.doc'. , carbon dioxide (called, with electron e, hydrogen ions through the porous - proton exchange membrane PEM to the cathode; cathode gas through the cathode diffusion layer 16 to the catalyst layer 15, the oxygen enthalpy is cracked into negatively charged oxygen ions, The electrons pass through the external circuit to the cathode, and the electrons form water h2〇 with the chloride ions and the oxygen ions. The total chemical reaction is as shown in formula (1), the fuel of the anode is methanol and water, the anode product is dioxide; the fuel of the cathode is oxygen, and the product For water, the basic direct methanol fuel cell (DMFC) has the following reaction formula:
陽極反應：ch3〇h + h2o 4 c〇2+6H++6e-，En=0046V 陰極反應：玉 〇2 + 6H++ 6e·——► 3H20，En 229VAnodic reaction: ch3〇h + h2o 4 c〇2+6H++6e-, En=0046V Cathodic reaction: Jade 〇2 + 6H++ 6e·——► 3H20, En 229V
紅反應：CH3〇H+^〇2 + h20—► C02+2H20，En=U83V 式⑴之中，En是燃料電池的電動勢(electr_tive ，或稱為開 路電壓(open-circuit voltage，OCV)。 如第二圖所示，目前質子交換膜燃料電池的單電池(single cell)流道板設 叶，主要是以網袼型流道、柵攔型流道、蛇行式流道、與指叉型等，直接 籲甲醇燃料電池基本上也使用上述的形式，但是由於陽極燃料為液體，密度 較局，最好採用流阻較低的設計。此外，對愈多cdl白勺電池組，則需要燃 料旎均勻地供應至每個cdl，使得每個cdl能有均勻的性能。 另外，直接甲醇燃料電池(DMFC)的陰陽雙極板類似於質子交換膜燃料 電池(PEMFC)，應具備下列幾種基本功能，以達成好的電池性能·· (1) 分隔氧化劑與還原劑，避免氫氣(PEM FC)甲醇(DMFC)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。 1282185 , p32-010.doc ‘ (3)適當流道設計，使燃料能均勻地分佈至Cell之中，產生均勻的電化 • 學反應，並且在陽極排出生成物二氧化碳，陰極得以帶走生成物水，以避 免積水的現象，減低電池效能。 (4) 良好的熱傳導效能，使電池内溫度均勻，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的作用。 _ ⑹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，以及内部流場的阻力過高，也 會減低電池效能。 (7)低密度，以減輕電池的重量。 目前廣為採用的雙極板，許多皆含有流道設計，具有傳輸燃料與收集 電子的功此，最外層為金屬集電板，電子經由陽極金屬集電板接至外部電 φ 路陰極形成一迴路。雙極板主要的材料分類如下： (1)石墨雙極板 無孔石墨板’需由石墨粉與由可石墨化樹脂混合後經高溫，所 需碳化時間長，成形後需要以機械方式刻畫流場，製作成本相當昂貴，因 此，以石墨粉加人熱塑性或熱固性樹脂經熱壓或是射出成形做出的複合材 料式(carb〇n-P〇lymer composites)石墨板，可以減低成本，但是會提高雙極板 的電阻。 (2)金屬雙極板 1282185 p32-010.doc 以金屬為雙極板材料，是—種替代材料的方式，如銘、鈦合金、不錢 鋼等其考量主要在域本低與易於製造，但是子交換_料電池或 是直接曱醇㈣電池，反應後級性，耻需要做抗雜的處理。 (3)複合型雙極板 將多種材料的特性結合，以薄金金她Μ·)做分隔板，採用聚碳酸 脂等注誠_邊框，使其與金餘合，以注塑與縣製備喊有孔薄碳 板做為流場板’金屬與碳流場板之間以_層極_導電膠黏合。 另-方面’碎形(Fractal)的理論應用已廣為運用在各種領域，特徵有：自我 (Self-Clarity) ^ (Sel,divisibmty} . 〇 ^利證書號麵4 (公告號_9Q71，申請號馳％6)之碎形散熱片 Μ及專繼魏丨刪（公錢_662,巾請細2期之碎形散 熱片及其形狀之產生方法，係將碎形幾何結構應用於電腦之散Μ，藉以 提昇散熱效果。碎賴何結構具有的雜可贱善氣㈣流場，使雜的 效果更為均勻。第三圖(A)(B)(C)為習用的门形碎形—階、二階及三階幾何社 構示意圖。第四圖麵她的矩形碎形—階、二階幾何結構示意圖。第° 蝴觸為習用的_碎形—階、二階幾何結構示意圖。第六_⑻為 白用的Pegen碎形一階、二階幾何結構示意圖。碎形的幾何結構目前並無應 用於燃料電池流場板及雙極板的前案。 因此’如何藉由碎形幾何結構來改善燃料電池流場板及雙極板，以延 長燃料電池的供電時間，係為本案所關注者。 Ϊ282185 p32-010.doc 【發明内容】 本案的目的在於根據制技術的缺失提出—改善的機制及裝置，係對 流場板的導流道或雙極板（由二集電板組成）的開孔結構採碎形的設計， 使燃料電池的反應能更為均勻，增加反應的有效面積，進而提昇燃料電池 的供電時間。 曰為達上述目的，本案提出一種具碎形結構之燃料電池，至少包含一流 板$屯板及貝子父換膜’該二集電板構成陰陽二極之雙極板，該 流場板係導人-液》料及水，藉料、水及該質子交翻之化學反應 从產生電力，其概係在於：該流場板的導流·結構如碎形(加咖） 之形狀構成者。 墨雙極板、金 如所软具碎縣構之轉電池，射該雙極板係為石 屬雙極板或複合型雙極板。 如所述之具碎輯之亀池，其切卿嫩㈣狀包含： 门形碎咖bert)、矩形碎形、_碎形及卜咖柳。 二階或 三階门碎形 如所述之具碎形結構之燃料電池，料如碎形純含一階、 如所述之具碎形結構之燃料電池， 或三階矩形碎形。 其中該矩形碎 形係包含一階、二階 碎形係包含一階、二階 如所述之具碎形結構之燃料電池，其中該圓形 或三階圓形碎形。 至少包含一流場板、二集‘ 本案更提Hi -種具剌結叙鱗電池， 12 1282185 p32-010.doc 板及貝子乂換版1二集電板構成陰陽二極之雙極板，該流場板係導入 一液體燃料及水，_轉、水及該f子錢默化學反應以產生電力， /、4寸祕在於·其巾至少_集電板的祕結構伽碎形(㈣加）之形狀構 成者。 【實施方式】 第七圖為本案較佳實施例之具碎形結構之燃料電池剖面示意圖；直 中’包含陽極集電板71、如2、質子交換膜73(ΜΕΑ，Μ__Ε__Red reaction: CH3〇H+^〇2 + h20—► C02+2H20, En=U83V In equation (1), En is the electromotive force of the fuel cell (electr_tive, or open-circuit voltage (OCV). As shown in the second figure, the single cell flow channel plate of the proton exchange membrane fuel cell is mainly provided with a mesh type flow channel, a gate block type flow channel, a meandering flow channel, and an interdigitated type. Directly appealing to methanol fuel cells basically uses the above form, but since the anode fuel is liquid, the density is relatively small, and it is better to adopt a design with lower flow resistance. In addition, for more battery cells with cdl, fuel is required to be uniform. Ground supply to each cdl, so that each cdl can have uniform performance. In addition, the direct-methanol fuel cell (DMFC) yin-yang bipolar plate is similar to proton exchange membrane fuel cell (PEMFC), should have the following basic functions, To achieve good battery performance · (1) Separate the oxidant and reducing agent to avoid the influence of hydrogen (PEM FC) methanol (DMFC) crossover through the plate (2) Excellent mechanical strength, so that the bipolar plate can be balanced with MEA Contact to collect current. 12821 85 , p32-010.doc ' (3) Appropriate flow path design, so that the fuel can be evenly distributed into the Cell, producing a uniform electrochemical reaction, and the product carbon dioxide is discharged at the anode, and the cathode can take away the product water. To avoid the phenomenon of water accumulation and reduce battery efficiency. (4) Good heat conduction efficiency, uniform temperature inside the battery, and heat dissipation and temperature control effect. (5) Excellent conductivity to collect current. _ (6) Suitable The opening ratio of the electrode plate, the ratio of the flow field groove area to the total electrode area should have an appropriate ratio, and the opening is too high, which may cause the contact resistance of the MEA and the bipolar plate to be too high and the performance is lowered, and the opening is too low. It will reduce the utilization of MEA catalyst, and the resistance of the internal flow field will be too high, which will also reduce the battery performance. (7) Low density to reduce the weight of the battery. Currently widely used bipolar plates, many of which contain flow The circuit design has the function of transporting fuel and collecting electrons. The outermost layer is a metal collector plate, and the electrons are connected to the external electric φ road cathode through the anode metal collector plate to form a loop. The main material of the bipolar plate The classification is as follows: (1) Graphite bipolar plate non-porous graphite plate ' needs to be mixed with graphite powder and high temperature after being mixed with graphitizable resin. The carbonization time is long. After forming, it is necessary to mechanically describe the flow field. The production cost is quite expensive. Therefore, a composite type (carb〇nP〇lymer composites) graphite plate obtained by hot pressing or injection molding of graphite powder plus a thermoplastic or thermosetting resin can reduce the cost, but increases the electric resistance of the bipolar plate. 2) Metal bipolar plate 1282185 p32-010.doc Metal is a bipolar plate material, which is a way of replacing materials, such as Ming, Titanium, and No. Steel, which are mainly in the low field and easy to manufacture, but Sub-exchange battery or direct sterol (4) battery, after the reaction level, shame needs to be treated with anti-mite. (3) The composite bipolar plate combines the characteristics of various materials, and uses thin gold and gold to make a partition plate. It uses polycarbonate and other injections to make it fit with Jin Yu, and it is called by injection molding and county preparation. The thin carbon plate of the hole is used as a flow field plate to bond between the metal and the carbon flow field plate with a layer of _ conductive adhesive. The other aspect of 'Fractal' has been widely used in various fields, including: Self-Clarity ^ (Sel, divisibmty}. 〇^利证书号4 (Announcement No. _9Q71, Application No.6% of the broken heat sink Μ and the special Wei Wei ( 公 公 公 公 公 公 公 公 公 公 公 ( 公 公 公 公 公 公 公 公 公 公 公 公 公 公 公 公 公 公 公 公 公 公 公 公 ( ( ( Diffusion, in order to improve the heat dissipation effect. The structure of the broken structure can have good (4) flow field, so that the effect of the impurity is more uniform. The third figure (A) (B) (C) is the conventional portal shape Schematic diagram of the geometrical structure of the order, second and third order. The fourth figure is a schematic diagram of her rectangular shape-order and second-order geometry. The °° butterfly is a conventional _ fractal-order, second-order geometric structure. (8) Schematic diagram of the first-order and second-order geometry of the Pegen fractal for white use. The geometry of the fractal is not currently applied to the fuel cell flow field plate and the bipolar plate. Therefore, 'how to improve by the fractal geometry Fuel cell flow field plates and bipolar plates to extend the power supply time of fuel cells are the focus of this case. Ϊ282185 p32-010.doc [Summary of the Invention] The purpose of this case is to propose a mechanism and device for improvement based on the lack of manufacturing technology, which is a guide channel or a bipolar plate (composed of two collector plates) of a flow field plate. The design of the open-hole structure adopts the fractal shape to make the reaction energy of the fuel cell more uniform, increase the effective area of the reaction, and further improve the power supply time of the fuel cell. In order to achieve the above purpose, the present invention proposes a fuel cell with a fractal structure. At least the first-class board $ 屯 及 and the 子子父换膜 'The two collector plates form a bipolar plate of yin and yang, the flow field plate guides the human-liquid material and water, borrowing materials, water and the protons The chemical reaction generates electric power, and the outline is that the flow guiding structure of the flow field plate is formed by the shape of a broken shape (plus coffee). The ink bipolar plate and the gold-like rotating battery of the broken county are shot. The bipolar plate is a stone bipolar plate or a composite bipolar plate. As described in the cleaving pool, the cut and tender shape (four) includes: a gate-shaped broken coffee bert), a rectangular fractal, a _ fractal And 卜咖柳. The second or third order door is broken as described The fuel cell is made of a fuel cell having a first-order, as described above, a fractal structure, or a third-order rectangular shape. The rectangular shape includes a first-order, second-order fractal system including a first-order The second-order fuel cell with a fractal structure as described above, wherein the circular or third-order circular shape. At least the first-class field plate, the second episode 'This case further mentions Hi-species with a knotted scale battery, 12 1282185 P32-010.doc board and shellfish 乂 乂 1 2 collector plate constitutes the yin and yang dipole bipolar plate, the flow field plate is introduced into a liquid fuel and water, _ turn, water and the f The power is generated, and the 4 inch secret is that the towel is at least _ the shape of the secret structure of the collector plate ((4) plus). [Embodiment] FIG. 7 is a schematic cross-sectional view of a fuel cell having a fractal structure according to a preferred embodiment of the present invention; the central portion includes an anode collector plate 71, such as 2, and a proton exchange membrane 73 (ΜΕΑ, Μ__Ε__)
Me，、墊片74、陰極集電板75、墊片76、流場板77。 、，流場板77上有導流道773及液體燃料輪入口 772及輸出口 771。導流 道773的形狀如第八騎示，含_階矩形碎㈣、二階矩形碎形.一^ _顿3、：帽碎龍' —咖碎形85、：雜形碎形％等等γ 當然’導流道773的形狀可為其中一種碎形形狀。 陽極集電板71上有陽極輸出端711及開孔結構712 ;而陰極集電板乃 上則有陰極輸出㈣及義構752。開孔結構721如第九圖所示，含 階矩形碎形開孔91、二階矩形碎形開孔92、—階圓形碎形開孔奶、 形碎形開孔94、—_碎形P_、二_碎形開孔料等，冬缺 開孔結構712可為其中一種碎形形 田…、 雙極板。 ㈣㈣板71及陰極集電板75構成 , 此來，4以使燃抖電池的化學反應更為均句，增加反應的有效 13 1282185 p32-010.doc 面積’使電池供電的時間增加。 本案與習用技術不同之處係在於，流場板的導流道或集電板的開孔結 構為碎形幾何結構。本隸補的碎形肋結構似各種碎形來設計，其 階數可因應設計而定。除此，本案實施例係以單電池為例，其應用也可擴 及多電池，同時’不管流場板電板，只要其中有_為碎形之結構，即 為本發明特徵所在。而碎形的結構的產生則可以用射出成形的方式來製 作，技術上係為可行者。 綜上所述’本案具碎形結構之燃料電池可以使其内部的化學反應更為 均勻，增加反應的有效面積，進而增加燃料電池的供電時間，使辦料電、、也 的應用可更嫩。赋增街補，咖卜物構上的變以 計，仍然屬縣案她保護編。例如聰池的流場板的撕伽 增加’或嫩變，或侧電池卿改變，只撕之输或集電 =_、轉者，任域由本_思及的各雜化，都本案 的原思’白為本案所欲保護者。 ’、 本案所揭露之技術，得由孰羽* 、 热白本技術人士據以實施，而其前所夫右夕 作法亦具備專利性，爰依法提 蓋本案所欲㈣之專·園 隹上述之實施例尚不足以涵 所^之她®，目此，㈣物_如附。 14Me, spacer 74, cathode collector plate 75, spacer 76, flow field plate 77. The flow field plate 77 has a flow path 773, a liquid fuel wheel inlet 772 and an output port 771. The shape of the guide vane 773 is as shown in the eighth riding, and includes a _ order rectangular broken (four), a second-order rectangular fractal, a ^ _ ton 3, a cap broken dragon '- café shape 85, a heterozygous fractal %, etc. γ Of course, the shape of the flow guide 773 can be one of the fractal shapes. The anode current collecting plate 71 has an anode output end 711 and an opening structure 712; and the cathode current collecting plate has a cathode output (4) and a semantic structure 752. The opening structure 721 is as shown in the ninth figure, and has a rectangular rectangular opening 91, a second-order rectangular broken opening 92, a first-order circular broken open-hole milk, a fractal opening 94, and a broken shape P_. The second-shaped open-opening structure 712 can be one of the fractal forms... and the bipolar plate. (4) (4) The plate 71 and the cathode collector plate 75 are formed. Thus, 4, in order to make the chemical reaction of the battery stable, and increase the effective area of the reaction, the battery power supply time is increased. The difference between this case and the conventional technology is that the opening of the flow field plate or the opening of the collector plate is a fractal geometry. The ribbed structure of this suffix is designed like various shapes, and the order can be determined according to the design. In addition, the embodiment of the present invention is exemplified by a single battery, and its application can also be extended to a multi-battery, and the present invention is characterized by the fact that the flow field plate is not limited to the structure of the invention. The generation of the fractal structure can be produced by injection molding, which is technically feasible. In summary, the fuel cell with a broken structure can make the internal chemical reaction more uniform, increase the effective area of the reaction, and increase the power supply time of the fuel cell, so that the application of electricity, and the application can be more tender. . Fu Zengjie, the change in the structure of the coffee and the material, is still protected by the county case. For example, the tearing gaze of the flow field plate of Congchi is increased or changed, or the side battery is changed, only the tearing or collecting electricity = _, the transferer, the domain is the hybrid of this _ thought, the original of the case Thinking of 'white' is the protector of the case. 'The technology disclosed in this case can be implemented by Yu Yu* and the hot white technicians, and the former husband and wife’s right-handed practice is also patentable, and the law is required to cover the case. The embodiment is not enough to cover her®, the purpose, and (4) the object _ as attached. 14
1282185 【圖式簡單說明】 第一圖為龍直接情燃料魏(DMFC)之反應侧示意圖。 第二圖編質子交換膜燃料電池的單電池㈣細1_板設計。 第三彡碎^、省三鳴結構示意圖 第四圖⑻⑻為制的矩形碎形—階、二階幾何結構示意圖。 第五圖(A)(B)為習用的圓形碎—一 ^ ^、二階幾何結構示意圖。 弟/、圖(A)(B)為習用的pegen碎一 一 » 、 ^ ^ 一階幾何結構示意圖。 第七圖為具碎形結構之燃料電池剖面示意圖。 第八圖本案較佳實施例之碎 ^ 卞形形狀之導流道的示意圖。 第九圖本案較佳實施例之碎形形狀 【主要元件符號說明】 p32-010.doc ‘之集電板開孔結構的示意 圖 11: 陽極 12: 陰極氣體流道 13: 陽極觸媒層 14： 陽極擴散層 15： 陰極觸媒層 16： 陰極擴散層 PEM:質子交換膜 71 ： 陽極集電板 71、 74、76 :墊片 73 ： 質子交換膜 75 ： 陰極集電板 77 ： 流場板 773 :導流道 772 :輸入口 15 1282185 p32-010.doc 771 :輸出口 711 :陽極輸出端 712 :開孔結構 751 :陰極輸出端 752 :開孔結構 81 : —階矩形碎形 82 :二階矩形碎形 83 : —階圓形碎形 84 :二階圓形碎形 85 : —階菱形碎形 86 :二階菱形碎形 91 : 一階矩形碎形開孔 92 :二階矩形碎形開孔 93 : —階圓形碎形開孔 94 :二階圓形碎形開孔 95 : —階菱形碎形開孔 96 :二階菱形碎形開孔1282185 [Simple description of the diagram] The first diagram is a schematic diagram of the reaction side of the Long Direct Fuel Fuel (DMFC). The second figure encodes the single cell of the proton exchange membrane fuel cell (four) fine 1_ plate design. The third smashing ^, the province three singular structure diagram The fourth figure (8) (8) is a rectangular shape of the system - the second-order geometric structure. The fifth figure (A) (B) is a schematic diagram of a conventional circular-to-^, second-order geometry. Brother /, Figure (A) (B) is the conventional pegen broken one », ^ ^ first-order geometry diagram. The seventh figure is a schematic cross-sectional view of a fuel cell with a broken structure. Figure 8 is a schematic view of a flow path of a crucible shape in accordance with a preferred embodiment of the present invention. Figure 9 Fractal shape of the preferred embodiment of the present invention [Description of main component symbols] Schematic diagram of the opening structure of the collector plate of p32-010.doc ': Anode 12: Cathode gas flow path 13: Anode catalyst layer 14: Anode diffusion layer 15: Cathode catalyst layer 16: Cathode diffusion layer PEM: Proton exchange membrane 71: Anode collector plates 71, 74, 76: Spacer 73: Proton exchange membrane 75: Cathode collector plate 77: Flow field plate 773 : Guide channel 772: Input port 15 1282185 p32-010.doc 771: Output port 711: Anode output terminal 712: Opening structure 751: Cathode output terminal 752: Opening structure 81: - Order rectangular shape 82: Second-order rectangle Fractal 83: - order circular fractal 84: second-order circular fractal 85: - diamond-shaped fractal 86: second-order diamond fractal 91: first-order rectangular fractal opening 92: second-order rectangular fractal opening 93: Stepped circular opening 94: second-order circular broken opening 95: - diamond-shaped broken opening 96: second-order diamond-shaped broken opening
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