200915649 九、發明說明： 【發明所屬之技術領域】 本創作係有關於一種輕量化燃料電池製作方法，特別 是指一種可適用於氣體或液體燃料電池，而能達到降低重 量及容易製作變形效果的設計者。 【先前技術】 燃料電池是一種藉著電化學反應，直接利用含氣燃 料和空氣產生電力的裝置。由於燃料電池具有污染低、 體積能量密度高、啟動時間短、燃料補充方便等特點， 近年來已成為移動式及可攜式動力源之技術研發重 點。其中以使用氫氣為燃料的質子交換膜燃料電池 (PEMFC);及以質子交換膜燃料電池（PEMFC)為基礎， 而以甲醇液體為燃料的直接曱醇燃料電池（DMFC)，為 目前普及應用之技術。 如第1圖示’典型的PEMFC燃料電池或DMFC燃料 電池，其單電池一般為多層體結構，中間層為一由質子 父換膜、及設於該質子交換膜兩側之陽極與陰極觸媒層 所組成之膜電極組體（4);緊鄰該膜電極組體外側的是 兩層擴散層（5)，大都採用排水性碳紙或碳布，使陽極 與陰極的反應物擴散至觸媒層；在該兩層擴散層外側的 是流道板（6) ’是一種導電隔板，大都是由碳板或金屬 板等材料加工而成，其板面相鄰擴散層側均設有流道 (7)，陽極與陰極的反應物與生成物即經由此兩層流道 板分別進出燃料電池；在該流道板外側者則為集電板 5 200915649 (8) ’用以收集電流並將其傳送至負載。 上述習式燃料電池結構設計，雖然已達到商業利用 仏值與使用效果，但是，隨著產品輕、薄、造型多變化 的設計趨勢與走向，如何進一步降低燃料電池的重量， 並提昇其造型多變化的便利性，已為相關產業開發產品 時之一重要課題。 ασ 【發明内容】 、、本發明係有關於—種輕量化燃料電池製作方法，該方 法包，：利用具有較佳的防腐錄絕緣材料製作絲面 /、有陽極"IL道或陰極流道的流道板；並利用披覆導質層 及牽引導_方式，使舰道板上的陽極流道或陰極流 道分別電性連接於流道板外側的正、負極端。π " 燮在可攜式能源的運用領域裏，燃料電池的重量會影 ^產品的攜帶便利性·，而燃料電池的體形則會影i到 雜態設計時的限制；而燃料電池的材料成本與二工 、又則會影響到產品的造價成本。依上述本發 ==作方法，由於本發明之導流板係採用絕 製：丄t:相較於習式以碳板材料或金屬板材料 再广反’將能有效降低該燃料電池重量的效果； 塑^日t於—般絕緣材料具有比碳或金屬材料容易加工 容易=㈣性，因此，本發明之流道板亦能達到 易衣作不同形狀的效果與經濟性。 【實施方式】 關於本發明的主要技術内容及功效，藉由以下實施例 6 200915649 說明’當能更詳細揭露： 〈實施例1〉 请先配合第2圖示’為本發明輕量化燃料電池製作方 去的-基本實知恐樣示意圖。在本實施例中，該燃料電池 是包含有一由質子交換膜、及設於該質子交換膜兩側之 陽極與陰極觸媒層所組成之膜電極組體（丨），及貼設於 膜電極組體兩側的擴散層（2)，及緊鄰擴散層設置之流道 板（3)所構成。而本發明輕量化燃料電池製作方法，係 包括有：利用具有較佳的防腐蝕性絕緣材料製作成表面 具有陽極流道（31)或陰極流道（32)的流道板（3); 亚利用披覆導質層或牽引導線（33)的方式，使該流道 板（3)上的陽極流道（31)或陰極流道（32)分別電 f1生連接於流道板（3)外側的正、負極端。 依上述方法製作之燃料電池，由於本發明之流道板 (3)本體不作導電用途，因此該流道板（3)可以選用 各種具有抗腐蝕性佳的絕緣材料製作成型，而具有質 輕、成本低、材料取得容易，及容易製作成如第3圖示 之波浪板（或曲板、或具有轉折角度的角板等非平板狀 形態）的變形效果。 再者，上述本發明所指的彼覆導質層或牽引導線 (33)’其披覆或牽引方式可以是如第2圖示的針對流道 板（3)的流道（31、32)以外的表面作彼覆或牽引，也 可以是如第2、4圖所示的連同流道（31或32)的表面 —起披覆或牽引。 7 200915649 〈實施例2> 請配合第5圖示，為本發明輕量化燃料電池製作方法 的另一實施態樣不意圖。在本實施例中’ 5亥燃料電池是包 含有二或多組由質子交換膜、及設於該質子交換膜兩側 之陽極與陰極觸媒層所組成之膜電極組體（1)，及貼設 於各膜電極組體（1)兩侧的擴散層（2)，及緊鄰擴散層 設置之流道板（3)所構成的燃料電池堆。而本發明輕量 化燃料電池製作方法，係包括有：利用具有較佳的防腐姓 性絕緣材料（如塑膠）製作成表面具有陽極流道（31) 或陰極流道（32)的流道板（3);並利用披覆導質層或 牽引導線（33)的方式，使該流道板（3 )上的陽極流道 (31)或陰極流道（32)分別電性連接於流道板（？） 外側的正、負極端。 〈實施例3〉 ,本發明所指的燃料電池可以是第2圖所揭之單電池 形態，或是如第5圖所揭之電池堆形態，而本發明輕量化 =料電池製作方法，係包括有：利用具有較佳的防腐蚀 封Γ製作成表面具有陽極流道（31)或陰極流道 勺机道板（3);並利用披覆導質層或牽引導線（33) ’使該流道板⑶上的陽極流道（31)或陰極 32)分別電性連接於流道板（3)外側的正、負 德勹人^配Q第6圖示，本實施例3所指的流道板（3)， 3同一片流逭板（3)上配設有一或多組陽極流道 8 200915649 (31)與陰極流道（32)，並利用披覆導質層或牽引導 線（33)的方式，使該陽極流道（31)與陰極流道（32) 形成迴路的電性連接於流道板（3)外铡的正、負極端。 如此，即能達到本發明燃料電池增加電壓的運用效果。 惟以上所揭技術内容，僅為本創作之較佳實施例說 明，當不應以之作為本創作實施時之唯一限制，故舉凡熟 習本項技術知識者能依本創作主要技術内容而為輕易可 思及之變化、修飾者，均屬本創作申請專利範圍所主張之 範圍。 【圖式簡單說明】 第1圖：係一習式燃料電池的構造示意圖。 第2圖：係本發明輕量化燃料電池製作方法運用於單電池 構造的一實施態樣示意圖。 第3圖：係本發明輕量化燃料電池製作方法的流道板變形 成非平板狀的示意圖。 第4圖：係本發明輕量化燃料電池製作方法的流道板披覆 導質層或導線的另一運用形態示意圖。 第5圖：係本發明輕量化燃料電池製作方法運用於電池堆 構造的一實施態樣示意圖。 第6圖：係本發明輕量化燃料電池製作方法將陽極流道與 陰極流道配置在同一流道板的實施態樣示意圖。 【主要元件符號說明】 〈先前技術〉 9 200915649 (4) 膜電極組體 (5) 擴散層 (6) 流道板 (7) 流道 (8) 集電板 〈本發明〉 (1) 膜電極組體 (2) 擴散層 (3) 流道板 (31) 陽極流道 (32) 陰極流道 (33) 導質層或導線。 10200915649 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a method for manufacturing a lightweight fuel cell, and particularly to a gas or liquid fuel cell, which can achieve weight reduction and easy deformation. Designer. [Prior Art] A fuel cell is a device that directly generates electricity by using a gas-containing fuel and air by an electrochemical reaction. Due to its low pollution, high volumetric energy density, short start-up time and convenient fuel replenishment, fuel cells have become the focus of technology development for mobile and portable power sources in recent years. Among them, a proton exchange membrane fuel cell (PEMFC) using hydrogen as a fuel, and a direct sterol fuel cell (DMFC) based on a proton exchange membrane fuel cell (PEMFC) and a methanol liquid fuel are currently widely used. technology. As shown in Fig. 1, a typical PEMFC fuel cell or DMFC fuel cell has a multi-cell structure, the middle layer is a membrane replaced by a proton, and the anode and cathode catalysts are disposed on both sides of the proton exchange membrane. a membrane electrode assembly (4) composed of layers; adjacent to the outside of the membrane electrode assembly are two diffusion layers (5), most of which are made of drainage carbon paper or carbon cloth, so that the anode and cathode reactants diffuse to the catalyst. The layer outside the two diffusion layers is a flow channel plate (6) 'is a kind of conductive separator, which is mostly made of materials such as carbon plates or metal plates, and has a flow on the side of the diffusion layer adjacent to the plate surface. In the channel (7), the reactants and products of the anode and the cathode are respectively introduced into and out of the fuel cell via the two-layer flow channel plate; and the outside of the flow channel plate is the collector plate 5 200915649 (8) 'to collect current and Transfer it to the load. Although the structural design of the above-mentioned fuel cell has reached the commercial use depreciation and use effect, how to further reduce the weight of the fuel cell and increase its shape with the design trend and trend of light, thin and versatile products. The convenience of change has become an important issue in the development of products for related industries. Σσ [Invention] The present invention relates to a method for fabricating a lightweight fuel cell, which comprises: using a preferred anti-corrosion insulating material to produce a silk surface, having an anode "IL channel or cathode flow channel The flow channel plate is used to electrically connect the anode flow channel or the cathode flow channel on the channel plate to the positive and negative ends of the flow channel plate, respectively, by using a coating guide layer and a traction guide. π " 燮 In the field of portable energy applications, the weight of the fuel cell will affect the portability of the product, while the shape of the fuel cell will limit the complexity of the design; and the material of the fuel cell The cost and the second work will affect the cost of the product. According to the above method of the present invention, since the deflector of the present invention is made of: 丄t: compared with the conventional carbon steel material or the metal plate material, the weight of the fuel cell can be effectively reduced. The effect of the plastic material is easier to process than the carbon or metal material. Therefore, the flow channel plate of the present invention can also achieve the effect and economy of different shapes. [Embodiment] The main technical contents and effects of the present invention are described in the following example 6 200915649 'When it can be disclosed in more detail: <Example 1> Please cooperate with the second figure 'making the lightweight fuel cell of the present invention The party went to the basics. In this embodiment, the fuel cell comprises a membrane electrode assembly comprising a proton exchange membrane and an anode and cathode catalyst layer disposed on both sides of the proton exchange membrane, and is attached to the membrane electrode. The diffusion layer (2) on both sides of the assembly body and the flow channel plate (3) disposed adjacent to the diffusion layer are formed. The method for fabricating a lightweight fuel cell of the present invention includes: a flow channel plate (3) having an anode flow channel (31) or a cathode flow channel (32) formed on the surface by using a corrosion-resistant insulating material; The anode flow channel (31) or the cathode flow channel (32) on the flow channel plate (3) is electrically connected to the flow channel plate (3) by means of coating the guiding layer or the traction wire (33). The positive and negative ends of the outer side. According to the fuel cell produced by the above method, since the body of the flow channel plate (3) of the present invention is not used for electrical conduction, the flow channel plate (3) can be formed by using various insulating materials having good corrosion resistance, and has a light weight. The cost is low, the material is easy to obtain, and it is easy to produce a deformation effect of a wave plate (or a curved plate or a non-flat shape such as a gusset having a turning angle) as shown in FIG. Furthermore, the coating layer or the traction wire (33) of the present invention may be covered or pulled by a flow path (31, 32) for the flow channel plate (3) as shown in FIG. The other surfaces may be covered or pulled, or may be covered or pulled along with the surface of the flow path (31 or 32) as shown in Figs. 7 200915649 <Embodiment 2> Please refer to Fig. 5, which is another embodiment of the method for manufacturing a lightweight fuel cell of the present invention. In the present embodiment, the '5-well fuel cell is a membrane electrode assembly (1) comprising two or more sets of proton exchange membranes and anode and cathode catalyst layers disposed on both sides of the proton exchange membrane, and A fuel cell stack formed by a diffusion layer (2) attached to both sides of each membrane electrode assembly (1) and a flow channel plate (3) disposed adjacent to the diffusion layer. The method for fabricating a lightweight fuel cell of the present invention comprises: using a channel material having a preferred anti-corrosive insulating material (such as plastic) to have an anode flow channel (31) or a cathode flow channel (32) on the surface ( 3); and electrically connecting the anode flow channel (31) or the cathode flow channel (32) on the flow channel plate (3) to the flow channel plate by means of coating the guiding layer or the traction wire (33) (?) The positive and negative ends of the outside. <Example 3> The fuel cell referred to in the present invention may be in the form of a single cell as disclosed in Fig. 2 or in the form of a cell stack as disclosed in Fig. 5, and the method for fabricating a lightweight material according to the present invention is Including: using a preferred anti-corrosion seal to form a surface having an anode flow path (31) or a cathode flow path scoop plate (3); and using a coated conductive layer or traction wire (33) The anode flow channel (31) or the cathode 32) on the flow channel plate (3) is electrically connected to the positive and negative electrodes of the flow channel plate (3), respectively, and is shown in Fig. 6, which is referred to in the third embodiment. The flow channel plate (3), 3 is provided with one or more sets of anode flow channels 8 200915649 (31) and cathode flow channels (32) on the same flow raft plate (3), and uses a coating layer or a traction wire ( 33), the anode flow channel (31) and the cathode flow channel (32) are electrically connected to the positive and negative ends of the outer channel of the flow channel plate (3). Thus, the effect of increasing the voltage of the fuel cell of the present invention can be achieved. However, the above technical content is only described in the preferred embodiment of the present invention, and should not be used as the only limitation in the implementation of this creation, so those who are familiar with the technical knowledge can easily follow the main technical content of the creation. Any change or modification that can be thought of is within the scope of the patent application scope of this creation. [Simple description of the drawing] Fig. 1 is a schematic view showing the structure of a conventional fuel cell. Fig. 2 is a view showing an embodiment of a method for fabricating a lightweight fuel cell of the present invention for use in a single cell structure. Fig. 3 is a schematic view showing the flow path plate of the method for producing a lightweight fuel cell of the present invention deformed into a non-flat shape. Fig. 4 is a schematic view showing another application form of a flow channel plate covering a gas guiding layer or a wire in the method for fabricating a lightweight fuel cell of the present invention. Fig. 5 is a view showing an embodiment of a method for fabricating a lightweight fuel cell of the present invention for use in a battery stack structure. Fig. 6 is a schematic view showing an embodiment of a method for fabricating a lightweight fuel cell according to the present invention in which an anode flow channel and a cathode flow channel are disposed in the same flow channel plate. [Major component symbol description] <Prior Art> 9 200915649 (4) Membrane electrode assembly (5) Diffusion layer (6) Flow path plate (7) Flow path (8) Current collector plate <Invention> (1) Membrane electrode Group (2) Diffusion layer (3) Flow path plate (31) Anode flow path (32) Cathode flow path (33) Conductive layer or wire. 10