200818592 九、發明說明 【發明所屬之技術領域】 本發明係有關有效於攜帶機器之動作的平面配置之燃 料電池。 【先前技術】 近年，電筆記型電腦，行動電話等之各種電子機器係 與半導體技術之發達同時而作爲小型化，並嘗試將燃料電 池使用於此等小型機器用之電源，而燃料電池係使由供給 燃料與氧化劑而即可發電，並具有只需補充·交換燃料而 即可連續發電之利點，因此，可以說是如可作爲小型化， 對於攜帶電子機器之動作極爲有利之系統，特別是，直接 甲醇燃料電池（DMFC: Direct Methanol Fuel Cell)係因 使用能量密度高之甲醇於燃料，並從甲醇，在電極觸媒上 直接取出電流，故可作爲小型化，另外，從燃料的處理亦 表較於氫氣燃料爲容易之情況，作爲小型機器用之電源爲 有望，故作爲對於筆記型電腦，行動電話，攜帶播放器， 攜帶遊戲機等之無線攜帶機器最佳之電源，期待其實用化 〇 對於DMFC之燃料供給方式，係有以送風箱等，將氣 化之液體燃料送入至燃料電池內之氣體供給方式，與直接 以幫浦等，將液體燃料送入至燃料電池內之液體供給方式 ’更加地’封於後者之液體供給方式，係有將置入之液體 燃料’在內部進行氣化，針對在膜電極接合體（MEA : 200818592200818592 IX. Description of the Invention [Technical Field] The present invention relates to a fuel cell in a planar configuration effective for carrying the action of a machine. [Prior Art] In recent years, various electronic devices such as electric notebook computers and mobile phones have been miniaturized at the same time as the development of semiconductor technology, and attempts have been made to use fuel cells for power sources such as small machines. By supplying fuel and oxidant, it is possible to generate electricity, and it is possible to continuously generate electricity by replenishing and exchanging fuel. Therefore, it can be said that it can be used as a system that is extremely advantageous for carrying electronic devices, particularly In the direct methanol fuel cell (DMFC: Direct Methanol Fuel Cell), since the methanol having a high energy density is used for the fuel and the current is directly extracted from the catalyst on the electrode, it can be miniaturized and processed from the fuel. It is also easier to use than hydrogen fuel. As a power source for small machines, it is expected to be the best power source for wireless portable devices such as notebook computers, mobile phones, mobile players, and game consoles. For the fuel supply method of the DMFC, the liquid fuel is sent to the vaporized box. The liquid supply method to the fuel cell, and the liquid supply method for directly feeding the liquid fuel into the fuel cell by means of a pump or the like, the liquid supply mode of the latter is further sealed, and the liquid fuel to be placed is provided. Internal gasification for the membrane electrode assembly (MEA : 200818592
Membrane Electrode Assembly)之陽極觸媒層，進行發電 反應之內部氣化方式，而內部氣化型之DMFC係例如，揭 示於國際公開編號W0200 5/1 12 172 A1。 但，以往的內部氣化型之DMFC係當跨越長時間連續 使用時，經由反應熱，內部的溫度則上升，並伴隨溫度的 上升，發電輸出則將下降，因此，無法將發電初期之高輸 出，從發電的中期維持至後期，而有著針對在長時間之連 續使用，輸出不安定之問題點，另外，以往之DMFC係作 爲內藏之液體燃料容器之溫度上升，燃料的揮發量增加， 並經由過剩之氣化燃料的供給，而容易產生切換，另外， 以往之DMFC係陰氣化燃料收容視之容量小，且內壓容易 上升，故有電池之中央部分膨脹變形之虞。 【發明內容】 本發明係爲爲了解決上述課題所作爲之構成，其目的 爲提供針對在長時間的連續使用，可控制輸出之不均而維 持安定之運轉的燃料電池。 有關本發明之燃料電池係爲具備：具有陰極觸媒層， 和陽極觸媒層，和配置於前述陰極觸媒層與前述陽極觸媒 層之質子傳導膜之膜電極接合體，和電性導通於前述陰極 觸媒層之陰極導電層，和電性導通於前述陽極觸媒層之陽 極導電層，和收容液體燃料之液體燃料收容室，和使液體 燃料之氣化之成分，從前述液體燃料收容室選擇性地透過 於前述陽極觸媒層之氣液分離膜，和從前述氣液分離膜形 -6 - 200818592 成至前述陽極觸媒層爲止之間的氣化燃料收容室之燃料電 池’其特徵乃將從前述氣液分離膜至前述陽極導電層之距 離，作爲超過2mm，低於5mm者。 【實施方式】 〔爲了實施發明之最佳型態〕 以下，參照附加的圖面，說明爲了實施本發明之理想 的實施形態。 本發明之燃料電池係因如圖1所示，將從氣液分離膜 13至陽極導電層9之距離L，作爲超過 2mm，低於 5mm (2mm < L ^ 5mm )，故經由空氣層之斷熱效果，初期發電 時之反應熱則在之後亦容易被保持，從發電中期至後期爲 止，控制了發電部之溫度下降，並將輸出下降控制成最小 限度，而由此，即使從發電的中期至後期，亦實質上維持 發電初期之高輸出，針對在長時間之連續使用，發電輸出 亦呈安定，然而，當距離L超過5 mm時，電池尺寸則變 大，不單只違反使用於攜帶機器之內藏電源的目的，還產 生氣化燃料的供給量之不均或不足，反而，輸出產生不安 定化，另一方面，燃料電池的輸出特性係爲因應元件層積 體的構造或運轉條件而各有所差異之構成，但，一般而言 ，當距離L，成爲2mm以下時，因從發電部傳導至液體燃 料收容室1 5的熱量增加，故燃料的氣化量及經由此而產 生之二氧化碳氣體量增加，而內壓則上升，容易發生內裝 構件之位置偏移或外裝罩體的變形，而有著經由密封構件 -7- 200818592 8，11之密封破損之虞，從如此的理由來看’在本發明中 ，係將從氣液分離膜1 3至陽極導電層9之距離’規定爲 超過2mm，低於5mm以下之範圍。 氣化燃料收容室1 6之形狀係可作爲矩形狀，圓筒狀 ，多角形筒狀等之各種構成，但，理想爲作爲矩形狀者， 因爲爲容易作爲攜帶機器內部配置之形狀。 複數之單電池1 2則一體地形成，此等單電池之中的 至少1 2個，期望爲配置於同一平面上者，而在攜帶機器之 中，係因嚴格限制厚度尺寸，故對於內藏於此之液體燃料 ’亦作爲同樣的要求，並因採用重疊複數之單電池之堆疊 構造之情況則爲困難，故採用排列配置於同一平面上之平 置配置構造’經由如此串聯連接平置配置之複數之單電池 的情況，形成組電池。 於氣化燃料收容室1 6之氣液分離膜1 3及與陽極導電 層9接觸的邊界側壁，可各設置密封構件8及剛體框體j i ’由此’防止氣化燃料切換至陰極側之同時，可防止氣化 燃料洩漏至外邰，而對於密封構件係可採用從硬質到軟質 之各種橡膠材料， 樹脂系材料或金屬材料，但在此之中The anode catalyst layer of Membrane Electrode Assembly is used for the internal gasification of the power generation reaction, and the internal gasification type DMFC system is disclosed, for example, in International Publication No. WO200 5/1 12 172 A1. However, in the conventional internal vaporization type DMFC, when the temperature is continuously used over a long period of time, the internal temperature rises due to the reaction heat, and the power generation output decreases as the temperature rises. Therefore, the high output at the initial stage of power generation cannot be achieved. From the mid-term of power generation to the latter stage, there is a problem that the output is unstable for continuous use over a long period of time. In addition, the temperature of the conventional DMFC as a built-in liquid fuel container increases, and the amount of fuel volatilize increases, and In the conventional DMFC-based gasification fuel storage, the capacity is small and the internal pressure is likely to increase, so that the central portion of the battery is expanded and deformed. SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object thereof is to provide a fuel cell that can maintain stable operation in response to continuous use over a long period of time. A fuel cell according to the present invention includes: a cathode catalyst layer, an anode catalyst layer, and a membrane electrode assembly disposed on the cathode catalyst layer and the anode catalyst layer of the anode catalyst layer, and electrically conducting a cathode conductive layer of the cathode catalyst layer, and an anode conductive layer electrically connected to the anode catalyst layer, and a liquid fuel containing chamber for containing the liquid fuel, and a component for vaporizing the liquid fuel from the liquid fuel a gas-liquid separation membrane selectively permeable to the anode catalyst layer and a fuel cell of the gasification fuel storage chamber between the gas-liquid separation membrane form -6 - 200818592 and the anode catalyst layer It is characterized in that the distance from the gas-liquid separation membrane to the anode conductive layer is more than 2 mm and less than 5 mm. [Embodiment] [Best Mode for Carrying Out the Invention] Hereinafter, a preferred embodiment for carrying out the invention will be described with reference to the accompanying drawings. In the fuel cell of the present invention, as shown in FIG. 1, the distance L from the gas-liquid separation membrane 13 to the anode conductive layer 9 is more than 2 mm and less than 5 mm (2 mm < L ^ 5 mm), so that it passes through the air layer. The heat-dissipating effect is also easily maintained after the initial power generation. From the middle to the end of the power generation, the temperature drop of the power generation unit is controlled, and the output drop is controlled to a minimum, and thus, even from power generation. From the middle to the end, it also maintains the high output at the beginning of power generation. The power output is stable for long-term continuous use. However, when the distance L exceeds 5 mm, the battery size becomes larger, not only for violation of the use. The purpose of the built-in power supply in the machine is also to produce an uneven or insufficient supply of vaporized fuel. On the contrary, the output is unstable. On the other hand, the output characteristics of the fuel cell are related to the structure or operation of the component laminate. In the case where the distance L is 2 mm or less, the amount of heat transmitted from the power generation unit to the liquid fuel storage chamber 15 is increased, so the fuel gas is used. The amount and the amount of carbon dioxide gas generated thereby increase, and the internal pressure rises, and the positional displacement of the inner member or the deformation of the outer cover body is liable to occur, and the seal is broken through the sealing member -7-200818592 8,11. In the present invention, the distance from the gas-liquid separation membrane 13 to the anode conductive layer 9 is set to be more than 2 mm and less than 5 mm. The shape of the vaporized fuel storage chamber 16 can be various shapes such as a rectangular shape, a cylindrical shape, and a polygonal cylindrical shape. However, it is preferably a rectangular shape because it is easily placed inside the portable device. The plurality of cells 1 2 are integrally formed, and at least 12 of the cells are desirably disposed on the same plane, and in the portable device, since the thickness is strictly limited, the built-in The liquid fuel here is also the same requirement, and it is difficult to use a stacked structure of a plurality of stacked single cells. Therefore, the flat configuration in which the arrays are arranged on the same plane is connected in such a manner as to be connected in series. In the case of a plurality of battery cells, a battery pack is formed. In the gas-liquid separation membrane 13 of the gasification fuel storage chamber 16 and the boundary side wall contacting the anode conductive layer 9, the sealing member 8 and the rigid body frame ji ' can be provided to prevent the vaporized fuel from being switched to the cathode side. At the same time, it can prevent the vaporized fuel from leaking to the outer casing, and for the sealing member, various rubber materials, resin materials or metal materials can be used from hard to soft, but among them,
可以保溫用之斷熱材1; 壁的外面，經由以斷熱材J; 圍情況，將氣化燃料收容室 -8 - 1 8 .被覆氣化燃料收容室1 6之側 1 8保溫氣化燃料收容室1 6之周 2 1 6作爲均熱化，控制氣化燃 200818592 料之溫度的不均，而可得到安定的輸出。 所使用之液體燃料係未必侷限於甲醇水溶液或純甲醇 等之甲醇燃料之構成，而亦可爲例如，乙醇水溶液或純乙 醇等之乙醇燃料，丙醇水溶液或純丙醇等之丙醇燃料，乙 二醇水溶液或純乙二醇等之乙二醇燃料，二甲醚，蟻酸， 氫化硼鈉水溶液，氫化硼鉀，氫化鋰水溶液水溶液，或其 他的液體燃料，無論如何，均因應燃料電池的種類而使用 適合其之液體燃料。 另外，燃料的濃度係可在從1 00摩爾％至數摩爾％之 範圍，使用各種濃度之構成，在此，針對在本發明，係期 望使用濃度超過5 0摩爾。/〇之甲醇水溶液，或甲醇的液體者 ’而此等燃料係因對於本發明者們，某重程度上了解到針 對在液體電池之有線的空間之氣化時的舉動或發電反應時 之舉動。 接著’關於本發明之實施形態，進行說明。 首先’參照圖1，關於就燃料電池之全體的槪要，進 行說明’燃料電池1係具備以氣化燃料收容室構造體i 4 及斷熱材1 8被覆外側，並平面配置於內部而串聯連接之 複數的單電池1 2，而燃料電池1係例如，經由將外裝罩體 2 1的端部23加工於氣化燃料收容室構造體1 4之外面之時 ’作爲串聯連接複數的單電池i 2而一體化之1個單元所 構成’然而，亦可經由以螺絲與螺帽等固定外裝罩體2 i 與氣化燃料收容室構造體14之時，將此等作爲一體化形 成0 -9- 200818592 單電池12係具有將質子傳導膜6、陰極觸媒層2、陽 極觸媒層3、陰極氣體擴散層4及陽極氣體擴散層5作爲 一體化之膜電極接合體1〇，更加地，作爲集電體，具備陰 極導電層7與陽極導電層9，而陽極觸媒層3與陰極觸媒 層2係將質子傳導膜6挾持於其間而對向配置，另，對於 陽極觸媒層3係貼合有陽極氣體擴散層5 陽極觸媒層3係爲氧化藉由陽極氣體擴散層5所供給 之燃料，從燃料取出電子與質子的構成，而陽極觸媒層3 係例如經由包含觸媒之碳粉沬所構成，對於觸媒係例如， 使用白金（Pt )之微粒子，鐵（Fe )，鎳（Ni )，鈷（Co )，釕（Ru )或鋁（Mo )等之過渡金屬或其氧化物或此 等之合金等之微粒子，但，如作爲經由釕與白金之合金構 成觸媒，因可防止經由一氧化碳（CO )之吸附的觸媒之不 活性化者，故爲理想。 另外，陽極觸媒層3係包含使用於質子傳導膜6之樹 脂的情況，則更爲理想，因爲容易進行產生之質子的移動 ，而陽極氣體擴散層5係例如已由多孔質之碳素材料而成 之薄膜所構成，具體而言，係以碳紙或碳纖維等所形成， 然而，接觸導通於陽極氣體擴散層5之陽極導電層9則作 爲負極簧片而延伸出於外方。 陰極觸媒層2係將氧還原，使電子與針對在陽極觸媒 層3產生的質子進行反應而生成水的構成，例如，與上述 之陽極觸媒層3及陰極氣體擴散層4同樣地所構成，即， 陰極係構成從質子傳導膜6側依序堆疊由包含觸媒之碳素 -10- 200818592 粉沬而成之陰極觸媒層2與由多孔質之碳素材料而成之陰 極氣體擴散層4(氣體透過層）的層機構造，而使用於陰 極觸媒層2之觸媒係爲與陽極觸媒層3相同，陽極觸媒層 2有包含使用於質子傳導膜6之樹脂的情況，亦與陽極觸 媒層2相同。 質子傳導膜6係爲爲了將針對在陽極觸媒層3產生之 質子’輸送至陰極觸媒層2之構成，並經由不具有電子傳 導性而可輸送質子之材料所構成，例如，經由聚全氟磺酸 系之樹脂膜，具體而言，係DUPONT公司製之Nafion膜 ，旭硝子公司制之 Flemion膜，旭化成工業公司制之 Aciplex膜等所構成，然而，除了聚全氟磺酸系之樹脂膜 之外’亦可作爲構成可輸送三氟苯乙烯衍生物之共聚合膜 ，含浸磷酸之聚并咪唑膜，芳香族聚醚酮磺酸膜，或脂肪 族碳化氫樹脂膜等質子之質子傳導膜6。 對於液體燃料收容室1 5的內部，係設置有未圖示之 液體燃料含浸層，而作爲液體燃料含浸層，例如理想爲多 孔質聚酯纖維，多孔質烯系樹脂等多硬質纖維或連續氣泡 多孔質體樹脂，而除了聚酯纖維之外，亦可經由丙烯酸系 之樹脂等之各種吸水性聚合物而構成，而經由可利用海綿 或纖維之集合體等之液體的浸透性而保持液體之材料構成 ’而本液體燃料含浸部係不論主體之姿勢而有效對於供給 適量的燃料，然而，作爲液體燃料，係使用甲醇水溶液或 純甲醇’乙醇水溶液或純乙醇，丙醇水溶液，蟻酸水溶液 ’蟻酸鈉水溶液，醋酸丙溶液，乙二醇水溶液，含有二甲 -11 - 200818592 醚等之氫的有機系水溶液，其中，甲醇水溶液係碳數以！ 反應時產生，但與碳酸氣體同時，可進行以低溫之發電反 應，並從產業廢棄物亦可比較容易製造，故爲理想，無論 如此，均收容因應然電池之液體燃料。 氣化燃料收容室1 6係經由膜電極接合體1 0，氣液分 離膜13,外裝罩體21等而規定周圍，而當液體燃料收容 室1 5內之液體燃料的一部分產生氣化時，其氣化燃料係 通過氣液分離膜1 3而進入至氣化燃料收容室1 6，更加地 ，從氣化燃料收容室1 6導入至膜電極接合體1 〇之陽極側 ，貢獻於發電反應。 陰極導電層7係接觸導通於陰極氣體擴散層4之主面 ’作爲爲了取出發電輸出之正極簧片而發揮機能，而陽極 導電層9係接觸導通於陽極氣體擴散層5之主面，作爲爲 了取出發電輸出之負極簧片而發揮機能，而對於陰極導電 層7與陽極導電層9係各自開口有複數的孔（未圖示）， 並通過前者的孔，從外裝罩體之通氣孔22的空氣則供給 於陰極氣體擴散層4，通過後者的孔，從氣化燃料收容室 1 6之氣化燃料則供給於陽極氣體擴散層5。 此等陰極導電層7及陽極導電層9係例如，對於由金 ’鎳等之金屬材料成之多孔質（例如，篩孔）或箔，或者 不銹鋼等之導電性金屬材料，可各自使用披覆金等之良導 電性金屬之複合材料等。 氣體擴散層4，5係可由具有所期望之平均密度或平 均氣孔率之碳紙或碳纖維薄板而製作，而氣體擴散層4，5 • 12 - 200818592 之平均密度或平均氣孔率係使用特定之測定器所測定。 保濕板1 9係不會阻害通過外裝罩體2 1之通氣孔22 所導入之空氣的通過，且爲了有效地利用在陰極觸媒層2 產生的水於在陽極觸媒層3之反應，爲了將在陰極觸媒層 2產生的水，藉由質子傳導膜6有效率地傳送至陽極觸媒 層3之構成，對於其保濕板1 9係理想爲使用例如氣孔率 爲20〜60%之多孔性薄膜等。 # 燃料電池1之內部係經由作爲複數之密封材8之Ο環 或剛體框體1 1而密封爲液密，並經由此等密封材8或剛 體框體11等形成各種空間或間隙，而在此等空間或間隙 之中，陽極側之空間係作爲液體燃料收容室1 5及氣化燃 料收容室1 6而被各自使用，而陰極側之空間係作爲收納 保濕板1 9之空氣供給部所使用，對於保濕板1 9係理想爲 使用例如氣孔率爲20〜60%之多孔性薄膜等，而對於液體 燃料收容室1 5係於適當處，開口有連通於液體受入口之 • 燃料供給流路（未圖示），對於液體受入口，係例如安裝 有卡桂式之親合益’並封於其観合器，插入未圖示之燃料 夾頭之噴嘴，而液體燃料則補給至液體燃料收容室1 5。 斷熱材1 8係至少呈被覆氣化燃料收容室〗6之側壁外 面地所設置，而對於斷熱材1 8係使用碳纖維，玻璃纖維 ’而斷熱材18的厚度係其限度作爲從imm程度至數mm 爲止。 對於陽極導電層9與燃料收容室構造體1 4之間，係 設置有氣液分離膜1 3，而氣液分離膜i 3之周緣部係挾持 -13- 200818592 於構造體1 4之凸緣與陽極導電層9之間，經由剛體框體 11而密封爲液密，以其氣液分離膜13與陽極導電層9與 剛體框體1 1而規定氣化室1 3，氣化室1 3係鄰接設置於液 體燃料收容室15，並兩室13，15之間係經由氣液分離膜 13所間隔，氣液分離膜13係爲由聚四氟乙烯（PTFE )薄 片而成，並遮斷液體燃料（甲醇液或其水溶液），具有使 燃料氣體（甲醇氣體）之性質的構成。 # 然而，對於液體燃料，係使用甲醇水溶液或純甲醇， 乙醇水溶液或純乙醇，丙醇水溶液，蟻酸水溶液，蟻酸鈉 水溶液，醋酸丙溶液，氫化硼鈉水溶液，氫化硼鉀，氫化 鋰水溶液水溶液，乙二醇水溶液，含有二甲醚等之氫的有 機系水溶液，其中，甲醇水溶液係碳數以1反應時產生， 但與碳酸氣體同時，可進行以低溫之發電反應，並從產業 廢棄物亦可比較容易製造，故爲理想。 然而，對於陽極側，係設置有未圖示之排氣流路，並 ® 通過該排氣流路，將爲副生成物之C〇2氣體，排出於反應 系統外，另外，陽極導電層9係具有多的孔9a與間隙， 並作爲不會阻礙燃料氣化成分或副生成氣體（C〇2 )之·擴 散的形狀。 液體燃料收容室1 5係由經由燃料收容室構造體1 4與 氣液分離膜13而規定周圍之特定容量的空間而成， 其空間的適當處，開口有未圖示之燃料供給口，對於,燃米斗 供給口，係安裝有卡栓式之稱合器，除了補給燃料時，_ 由耦合器而閉鎖燃料供給口。 -14- 200818592 外裝罩體2 1係亦可作爲以對於不銹鋼或 耐蝕性優越之金屬材料而製作，而亦可作爲以 (PEEK : Victrex公司的商標）、聚苯硫醚（ 四氟乙烯（PTFE)等之液體燃料不易產生膨潤 料而製作，而將外裝罩體21作爲金屬材料之 於同一電池容器內之各負極則不呈短路地，有 圖示之絕緣構件於負極相互間。 對於陰極側的外裝罩體21主面，係在各 隔，開口有複數之通氣孔22，此等通氣孔22 於作爲空氣供給部之保濕板1 9，而此等通氣孔 外氣通過的開口，但理想爲作爲不阻礙外氣的 防止從外部對於陰極氣體擴散層1 5之微小或 之侵入.接觸之形狀的工夫。 外裝罩體2 1之材料係理想爲使用對於不 屬等之耐蝕性優越之金屬材料，但，並不侷限 ，亦可使用樹脂材料，例如，可使用以聚醚I :Victrex公司的商標）、聚苯硫醚（PPS )、 (PTFE)等之液體燃料不易產生膨潤等之硬質 對於液體燃料收容室1 5的內部，係收容 含浸層（未圖示），而對於液體燃料含浸層， 使用多孔質聚酯纖維，多孔質烯系樹脂等多硬 續氣泡多孔質體樹脂者，而液體燃料含浸層係 分離膜1 3與形成有燃料供給口 2 1之容器構趕 ，並針對在燃料容器1 5內之液體燃料減少之 鎳金屬等之 由聚醚醚酮 pps)、聚 等之硬質塑 情況係配置 必要插入未 特定間距間 係各自連通 22係形成 通過，而可 針狀的異物 銹鋼或鎳金 於金屬材料 迷酮(PEEK 聚四氟乙烯 塑料。 有液體燃料 例如理想爲 質纖維或連 配置於氣液 !體1 4之間 情況，或燃 -15- 200818592 料電池主體傾斜而所載置之燃料供給偏移之情況，亦均等 地供給燃料於氣液分離膜1 3，其結果，可均等地供給氣化 燃料於陽極觸媒層14，而除了聚酯纖維之外，亦可經由丙 烯酸系之樹脂等之各種吸水性聚合物而構成，而經由可利 用海綿或纖維之集合體等之液體的浸透性而保持液體之材 料構成，而液體燃料含浸部係不論主體之姿勢而有效對於 供給適量的燃料。 φ 以上，已舉例說明過各種實施型態，但，本發明並不 侷限於上述各實施型態之構成，而可作各種變形及組合。 然而，本發明並非只侷限於上述實施型態，而在實施 階段中，在不脫離其主旨的範圍，可將構成要素進行變化 而具體化，另外，經由掲示於上述實施型態之複數的構成 要素之適當組合，可形成各種發明，例如，可從表示在實 施型態之全構成要素省略幾個構成要素，更加地，亦可適 宜組合不同實施型態之構成要素。 ® 例如，在上述的說明中，作爲燃料電池之構成，以於 膜電極接合體（MEA )之下部，具有燃料儲存部之構造， . 已作過說明，但，亦可爲從燃料收容部，對於MEA之容 料的供給係藉由流路之構成，另外，在上述實施型態中， 關於被動型之燃料電池的例，已說明過，但對於主動型或 被動型之燃料電池，亦可適用本發明，在此，半被動型之 燃料電池係指利用毛管力及機械驅動力而供給液體燃料之 方式的燃料電池，針對在半被動型之燃料電池係燃料乃從 燃料收容部供給至MEA，並在MEA消耗於發電反應，並 -16- 200818592 不會再次返回至燃料收容部，如此，在半被動型之燃料電 池之中，因未在系統內循環燃料之情況，故與主動型不同 ，另外，半被動型之燃料電池係不會損及裝置的小型化， 另外，半被動型之燃料電池係對於燃料的供給，使用幫浦 ，並亦與純被動型（只以毛管力供給燃料之方式）之燃料 電池不同，然而，在其半被動型之燃料電池之中，如爲進 行從燃料收容部對於MEA之燃料供給之構成即可，而亦 可取代幫浦使用遮斷閥之情況，而遮斷閥係爲將經由毛管 力之液體燃料的流通作爲ON/OFF控制之構成，另外，供 給於MEA之燃料的蒸氣係亦可作爲供給所有燃料的蒸氣 ’但即使爲以液體狀態供給其一部分之情況，亦可適用本 發明。 接著，參照表1及圖2，將各實施例與比較力作比較 而進行說明。 (實施例1 ) 作爲實施例1，以室溫，以一定電壓進行發電，在測 定此時之電池輸出的經時變化的同時，同時監控溫度及內 壓，在此，溫度係在陽極導電層9之正下方位置進行測定 ，壓力係在氣化燃料收容室1 6之中央部位置進行測定。 <條件> 單電池之有效面積：70*10mm 單電池的數量：6串聯 -17- 200818592 電解質膜的厚度：45μπι 陽極觸媒層的厚度：ΙΟΟμπι 陰極觸媒層的厚度：ΙΟΟμπι 陽極氣體擴散層的厚度：3 50 μιη 陰極氣體擴散層的厚度：3 50μιη 陽極導電層的厚度：80μιη 陰極導電層的厚度：80μιη 馨 距離L : 5mm 發電時間：50時間 但，各層的厚度係以將測定點作爲1 〇點之平均値， 各自表示。 另外，距離L係以圖2所示之9個測定點（1 )〜（9 )的平均値而表示，即，距離L之測定點係爲在對應於陽 極導電層9之4個角部（1) ，（3) ， （7) ，（9) 、4 邊的中點部（2 ) ， ( 4 ) ，( 6 ) ， （ 8 )及1個中央部（ ® 5)之位置所得到的値之平均値，而距離L係可由測定例 如以切斷方法切斷之斷面而得到。 . 將其結果，以相對値表示於表1。 (實施例2 ) 作爲實施例2 ’將滿足下記條件之燃料電池，各自連 續進行發電動作，測定膜電極接合體之溫度與內壓的同時 ’測定長期輸出’將其結果，以相對値表示於表1。 -18- 200818592 <條件> 單電池之有效面積：70*1 0 mm 單電池的數量·· 6串聯 電解質膜的厚度：45μιη 陽極觸媒層的厚度：ΙΟΟμιη 陰極觸媒層的厚度：ΙΟΟμιη 陽極氣體擴散層的厚度：350μιη 礓^ 陰極氣體擴散層的厚度：350μιη 陽極導電層的厚度：80μπι 陰極導電層的厚度：80μιη 距離 L : 2.5 m m 發電時間：50時間 (實施例3 ) 作爲實施例3，將滿足下記條件之燃料電池，各自連 續進行發電動作，測定膜電極接合體之溫度與內壓的同時 ’測定長期輸出，將其結果，以相對値表示於表1。 <條件> 單電池之有效面積：7〇*l〇mm 單電池的數量：6串聯 電解質膜的厚度：45μηι 陽極觸媒層的厚度：ιοομπχ 陰極觸媒層的厚度：ιοομπι -19- 200818592 陽極氣體擴散層的厚度：35〇μιη 陰極氣體擴散層的厚度：350 μπι 陽極導電層的厚度：80μιη 陰極導電層的厚度：80μπι 距離L : 3mm 發電時間：50時間 (實施例4) 作爲實施例4，將滿足下記條件之燃料電池，各自連 續進行發電動作，測定膜電極接合體之溫度與內壓的同時 ’測定長期輸出，將其結果，以相對値表示於表1。 <條件> 單電池之有效面積：7 0 * 1 0 m m 單電池的數量：6串聯 電解質膜的厚度：45μηι 陽極觸媒層的厚度：100 陰極觸媒層的厚度：100^m 陽極氣體擴散層的厚度：3 50 μιη 陰極氣體擴散層的厚度：ΜΟμ111 陽極導電層的厚度： 陰極導電層的厚度：80μπι 距離L : 4mm 發電時間：5 0時間 -20- 200818592 (比較例1 ) 作爲比較例1，將滿足下記條件之燃料電池，各自連 續進行發電動作，測定膜電極接合體之溫度與內壓的同時 ，測定長期輸出，將其結果，以相對値表示於表1。 <條件> 鲁 單電池之有效面積：70*10mm 單電池的數量：6串聯 電解質膜的厚度：45μπι 陽極觸媒層的厚度：ΙΟΟμηι 陰極觸媒層的厚度：1〇〇μηι 陽極氣體擴散層的厚度：350μιη 陰極氣體擴散層的厚度：3 5 0μιη 陽極導電層的厚度：80μηι • 陰極導電層的厚度：80μηι 距離L : 2mm 發電時間：5 0時間 -21 - 200818592 表1 從觸媒層至氣化 膜的距離（mm) 從導電層至氣化 膜的距離（mm) 長期輸出 (相對値） 實施例1 4.57 5 100 實施例2 2.07 2.5 85 實施例3 2.57 3 90 實施例4 3.57 4 95 比較例1 1.57 2 80 # 針對在實施例1，膜電極接合體的溫度係爲1.25，超 出比較例1，而內壓係爲0.8，低於比較例1，由此，在實 施例1中，認爲控制內壓得上升之同時，發電初期之熱量 ，則針對在中期〜後期亦被保持。 將實施例1的結果，作爲基準値之100，以相對値各 自表示其他實施例2〜4與比較例1之結果，另，認爲隨著 距離L增加，長期輸出則增大者，另外，可確認到距離L 在超過2mm低於5mm以下的範圍，得到良好之長期輸出 •者。 如根據本發明，可長時間安定的得到良好的電池性能 . ，作爲筆記型電腦，行動電話，攜帶播放器，攜帶遊戲機 ， 等之無線攜帶機器等之電源，可得到對於連續使用中不均 少之安定的輸出特性。 【圖式簡單說明】 〔圖1〕係爲表示有關本發明之實施形態的燃料電池 之內部透視剖面圖。 -22- 200818592 〔圖2〕係爲表示氣化膜-導電層間之距離的測定位置 之平面圖。 【主要元件符號說明】 1 :燃料電池 ' 2 :陰極觸媒層 3 :陽極觸媒層 • 4:陰極氣體擴散層 5 _·陽極氣體擴散層 6 :質子傳導膜 7 :陰極導電層 8 :密封構件 9 :陽極導電層 1 〇 :膜電極接合體 1 1 :剛體框體 ® 1 2 :複數之單電池 1 3 :氣液分離膜 1 4 :燃料收容室構造體 1 5 :液體燃料收容室 1 6 _·氣化燃料收容室 18 :斷熱材 1 9 :保濕板 2 1 :外裝罩體 22 :通氣孔 -23 - 200818592 23 :外裝罩體之端部The heat-dissipating material 1 can be used for heat preservation; the outside of the wall is heated and gasified by the side of the gasification fuel storage chamber -8 - 18 by the heat-dissipating material J; The periphery of the fuel containment chamber 16 is used as a soaking temperature to control the unevenness of the temperature of the gasification fuel 200818592, and a stable output can be obtained. The liquid fuel to be used is not necessarily limited to a methanol fuel or a methanol fuel such as pure methanol, and may be, for example, an ethanol fuel such as an ethanol aqueous solution or pure ethanol, a propanol aqueous solution or a propanol fuel such as pure propanol. Ethylene glycol fuel such as ethylene glycol aqueous solution or pure ethylene glycol, dimethyl ether, formic acid, sodium borohydride aqueous solution, potassium borohydride, aqueous lithium hydride solution, or other liquid fuel, in any case, in response to fuel cells Use a liquid fuel suitable for the type. Further, the concentration of the fuel may be in a range from 100% by mole to several mole%, and various concentrations are used. Here, in the present invention, it is desirable to use a concentration exceeding 50 moles. / 〇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇 甲醇. Next, an embodiment of the present invention will be described. First, a description will be given of a summary of the entire fuel cell. The fuel cell 1 is provided with a vaporized fuel storage chamber structure i 4 and a heat-dissipating material 18 covering the outside, and arranged in a plane and connected in series. A plurality of unit cells 12 are connected, and the fuel cell 1 is, for example, a single unit connected in series by processing the end portion 23 of the exterior cover 21 from the outer surface of the vaporized fuel containing chamber structure 14 The battery i 2 is integrated into one unit. However, when the exterior cover 2 i and the vaporized fuel storage chamber structure 14 are fixed by screws, nuts, or the like, these may be integrally formed. 0-9-200818592 The unit cell 12 has a membrane electrode assembly 1 in which the proton conductive membrane 6, the cathode catalyst layer 2, the anode catalyst layer 3, the cathode gas diffusion layer 4, and the anode gas diffusion layer 5 are integrated. Further, as the current collector, the cathode conductive layer 7 and the anode conductive layer 9 are provided, and the anode catalyst layer 3 and the cathode catalyst layer 2 are disposed to be opposed to each other while the proton conductive layer 6 is held therebetween, and for the anode contact The dielectric layer 3 is bonded with the anode gas diffusion layer 5 The polar catalyst layer 3 is configured to oxidize fuel supplied from the anode gas diffusion layer 5, and to extract electrons and protons from the fuel, and the anode catalyst layer 3 is formed, for example, via a toner containing a catalyst. The medium is, for example, a platinum (Pt) fine particle, a transition metal such as iron (Fe), nickel (Ni), cobalt (Co), ruthenium (Ru) or aluminum (Mo) or an oxide thereof or the like. The fine particles are preferable because they are a catalyst which is formed by an alloy of ruthenium and platinum, since the catalyst which is adsorbed by carbon monoxide (CO) can be prevented from being inactivated. Further, in the case where the anode catalyst layer 3 contains a resin used for the proton conductive membrane 6, it is more preferable because the movement of the generated protons is easy, and the anode gas diffusion layer 5 is, for example, a porous carbon material. The formed film is specifically formed of carbon paper or carbon fiber. However, the anode conductive layer 9 that is in contact with the anode gas diffusion layer 5 extends outward as a negative electrode reed. The cathode catalyst layer 2 is configured to reduce oxygen and react electrons with protons generated in the anode catalyst layer 3 to form water, for example, similarly to the anode catalyst layer 3 and the cathode gas diffusion layer 4 described above. The cathode system is formed by sequentially stacking a cathode catalyst layer 2 composed of a catalyst-containing carbon--10-200818592 powder and a cathode gas made of a porous carbon material from the proton conductive membrane 6 side. The layer structure of the diffusion layer 4 (gas transmission layer) is the same as that of the anode catalyst layer 3, and the anode catalyst layer 2 contains the resin used for the proton conductive film 6. In other cases, it is also the same as the anode catalyst layer 2. The proton conductive membrane 6 is configured to transport a proton generated in the anode catalyst layer 3 to the cathode catalyst layer 2, and is configured to transport protons without electron conductivity, for example, via polymerization. The fluorosulfonic acid-based resin film is specifically composed of a Nafion membrane manufactured by DUPONT Co., Ltd., a Flemion membrane manufactured by Asahi Glass Co., Ltd., and an Aciplex membrane manufactured by Asahi Kasei Kogyo Co., Ltd., except for a polyperfluorosulfonic acid resin film. It can also be used as a proton-conducting membrane which constitutes a copolymerizable film capable of transporting a trifluorostyrene derivative, a polyimidazole film impregnated with phosphoric acid, an aromatic polyether ketone sulfonic acid film, or an aliphatic hydrocarbon resin film. 6. In the liquid fuel storage chamber 15 , a liquid fuel impregnation layer (not shown) is provided, and as the liquid fuel impregnation layer, for example, a porous polyester fiber or a porous fiber such as a porous olefin resin or a continuous bubble is preferable. In addition to the polyester fiber, the porous resin may be formed of various water-absorbent polymers such as an acrylic resin, and the liquid may be retained by the permeability of a liquid such as a sponge or an aggregate of fibers. The material composition 'the liquid fuel impregnation part is effective for supplying an appropriate amount of fuel regardless of the posture of the main body. However, as the liquid fuel, an aqueous methanol solution or a pure methanol 'ethanol aqueous solution or pure ethanol, an aqueous solution of propanol, and an aqueous solution of formic acid 'antic acid are used. A sodium aqueous solution, a propylene acetate solution, an aqueous solution of ethylene glycol, and an organic aqueous solution containing hydrogen such as dimethyl-11 - 200818592 ether, wherein the aqueous methanol solution is carbon number! It is produced at the same time as the carbon dioxide gas, and it can be produced at a low temperature, and it is also easy to manufacture from industrial waste. Therefore, it is desirable to contain the liquid fuel of the battery. The gasification fuel storage chamber 16 defines a periphery via the membrane electrode assembly 10, the gas-liquid separation membrane 13, the exterior cover 21, and the like, and when a part of the liquid fuel in the liquid fuel storage chamber 15 is vaporized. The vaporized fuel enters the vaporized fuel storage chamber 16 through the gas-liquid separation membrane 13 and is further introduced from the vaporized fuel storage chamber 16 to the anode side of the membrane electrode assembly 1 to contribute to power generation. reaction. The cathode conductive layer 7 is in contact with the main surface of the cathode gas diffusion layer 4 as a function of the positive electrode reed for taking out the power generation output, and the anode conductive layer 9 is in contact with the main surface of the anode gas diffusion layer 5 as a The negative electrode reed of the power generation output is taken out to function, and a plurality of holes (not shown) are opened for each of the cathode conductive layer 7 and the anode conductive layer 9, and the vent hole 22 of the outer cover is passed through the hole of the former. The air is supplied to the cathode gas diffusion layer 4, and the vaporized fuel from the gasification fuel storage chamber 16 is supplied to the anode gas diffusion layer 5 through the holes of the latter. The cathode conductive layer 7 and the anode conductive layer 9 may be, for example, a porous metal material (for example, a mesh) or a foil made of a metal material such as gold or nickel, or a conductive metal material such as stainless steel. A composite material of a good conductive metal such as gold. The gas diffusion layers 4, 5 may be made of a carbon paper or carbon fiber sheet having a desired average density or average porosity, and the average density or average porosity of the gas diffusion layer 4, 5 • 12 - 200818592 is determined using a specific measurement. Determined by the device. The moisturizing plate 9 does not impede the passage of air introduced through the vent holes 22 of the exterior cover 21, and in order to effectively utilize the water generated in the cathode catalyst layer 2 to react in the anode catalyst layer 3, In order to efficiently transport the water generated in the cathode catalyst layer 2 to the anode catalyst layer 3 by the proton conductive membrane 6, it is desirable to use, for example, a porosity of 20 to 60% for the moisturizing plate. Porous film, etc. # The inside of the fuel cell 1 is sealed to be liquid-tight by a ring or a rigid body frame 11 as a plurality of sealing members 8, and various spaces or gaps are formed through the sealing member 8 or the rigid body frame 11 or the like. Among the spaces or gaps, the space on the anode side is used as the liquid fuel storage chamber 15 and the vaporized fuel storage chamber 16 , and the space on the cathode side serves as an air supply unit for housing the moisturizing plate 19 . For the use of the moisturizing plate, it is preferable to use, for example, a porous film having a porosity of 20 to 60%, and the liquid fuel storage chamber 15 is appropriately placed, and the opening is connected to the liquid receiving inlet. The road (not shown) is provided with a card-like affinity for the liquid inlet, and is sealed in the coupler, and is inserted into a nozzle of a fuel chuck (not shown), and the liquid fuel is supplied to the liquid. Fuel containment chamber 15. The heat-dissipating material 18 is provided at least on the outer side of the side wall of the coated gasification fuel storage chamber 6, and the carbon fiber is used for the heat-dissipating material 18, and the thickness of the heat-dissipating material 18 is the limit as imm. The degree is up to a few mm. A gas-liquid separation membrane 13 is disposed between the anode conductive layer 9 and the fuel containing chamber structure 14 , and the peripheral portion of the gas-liquid separation membrane i 3 is held by the flange of the structure 14 - 13 . The anode conductive layer 9 is sealed to be liquid-tight by the rigid body frame 11, and the gas-liquid separation membrane 13 and the anode conductive layer 9 and the rigid body frame 1 are defined to define the vaporization chamber 13 and the vaporization chamber 13 The gas-liquid separation chamber 13 is disposed adjacent to each other, and the two chambers 13 and 15 are separated by a gas-liquid separation membrane 13 which is formed of a sheet of polytetrafluoroethylene (PTFE) and is interrupted. The liquid fuel (methanol liquid or its aqueous solution) has a configuration that makes properties of the fuel gas (methanol gas). # However, for liquid fuel, methanol aqueous solution or pure methanol, ethanol aqueous solution or pure ethanol, aqueous solution of propanol, aqueous solution of formic acid, aqueous sodium formate, aqueous solution of sodium acetate, aqueous solution of sodium borohydride, potassium borohydride, aqueous solution of lithium hydride solution, An aqueous solution of ethylene, which contains an organic aqueous solution of hydrogen such as dimethyl ether. The methanol aqueous solution is produced by reacting a carbon number in one, but at the same time as the carbonic acid gas, a low-temperature power generation reaction can be performed, and industrial waste is also used. It is relatively easy to manufacture, so it is ideal. However, on the anode side, an exhaust gas flow path (not shown) is provided, and the C〇2 gas which is a by-product is discharged through the exhaust gas flow path, and the anode conductive layer 9 is discharged. It has a large number of holes 9a and a gap, and has a shape that does not hinder the diffusion of the fuel vaporization component or the by-product gas (C〇2). The liquid fuel storage chamber 15 is formed by a space defining a specific capacity around the fuel storage chamber structure 14 and the gas-liquid separation membrane 13, and a fuel supply port (not shown) is opened at a suitable space. The fuel supply port of the rice is fitted with a plug type of the plug type, and the fuel supply port is blocked by the coupler when the fuel is replenished. -14- 200818592 The outer cover 2 1 can also be made of a metal material superior to stainless steel or corrosion resistance, or as a (PEEK: Victrex company brand), polyphenylene sulfide (tetrafluoroethylene ( A liquid fuel such as PTFE) is not easily produced by a swelling material, and each of the negative electrodes in the same battery container in which the exterior cover 21 is made of a metal material is not short-circuited, and the insulating member shown is between the negative electrodes. The main surface of the exterior cover 21 on the cathode side is spaced apart, and a plurality of vent holes 22 are opened in the opening, and the vent holes 22 are used as the moisturizing plate 129 of the air supply portion, and the openings through which the vent holes pass However, it is desirable to prevent the external gas from being infiltrated from the outside to the cathode gas diffusion layer 15 or the shape of the contact. The material of the outer cover 2 1 is desirably used for corrosion resistance other than Metal materials with superior properties, but not limited, resin materials can be used. For example, liquid fuels such as polyether I: Victrex, polyphenylene sulfide (PPS), (PTFE), etc. are not easily produced. Swelling and other hard In the liquid fuel storage chamber 15 , an impregnation layer (not shown) is accommodated, and a porous polyester fiber or a porous organic resin such as a porous olefin resin is used for the liquid fuel impregnation layer. The liquid fuel-containing layer separation membrane 13 and the container in which the fuel supply port 21 is formed are constructed, and the liquid metal fuel in the fuel container 15 is reduced by polyether ether ketone (pps), poly, etc. The hard plastic case is configured to be inserted into the unconnected space, and the respective lines 22 are formed to pass through, and the needle-shaped foreign matter rust steel or nickel gold is used in the metal material ketone (PEEK PTFE plastic. For example, it is desirable to have a liquid fuel When the fiber is evenly disposed between the gas-liquid body 14 or the fuel supply body of the fuel cell is tilted and the fuel supply is offset, the fuel is equally supplied to the gas-liquid separation membrane 13 As a result, the vaporized fuel can be uniformly supplied to the anode catalyst layer 14 and can be formed by various water-absorbent polymers such as acrylic resin in addition to the polyester fiber. The material of the liquid is maintained by the permeability of the liquid such as the sponge or the aggregate of the fibers, and the liquid fuel impregnation portion is effective for supplying an appropriate amount of fuel regardless of the posture of the main body. φ or more, various embodiments have been exemplified, However, the present invention is not limited to the configurations of the above embodiments, and various modifications and combinations are possible. However, the present invention is not limited to the above-described embodiments, and in the implementation stage, without departing from the scope of the invention. The components can be changed and embodied, and various inventions can be formed by appropriate combination of the plurality of constituent elements shown in the above-described embodiment. For example, several components can be omitted from the entire constituent elements of the embodiment. Further, it is also possible to combine components of different embodiments in a suitable manner. For example, in the above description, the fuel cell is configured to have a fuel storage portion under the membrane electrode assembly (MEA). However, it may be a fuel storage portion. The supply of the MEA material is constituted by a flow path, and in the above embodiment, an example of a passive type fuel cell has been described, but for an active type or a passive type of fuel cell, According to the present invention, a semi-passive type fuel cell refers to a fuel cell in which a liquid fuel is supplied by a capillary force and a mechanical driving force, and a fuel cell system fuel is supplied from a fuel accommodating portion to an MEA. And the MEA is consumed in the power generation reaction, and -16-200818592 will not return to the fuel containment unit again. Thus, in the semi-passive type fuel cell, the fuel is not circulated in the system, so it is different from the active type. In addition, the semi-passive fuel cell system does not damage the miniaturization of the device. In addition, the semi-passive fuel cell system uses a pump for the supply of fuel, and is also pure The fuel cell of the dynamic type (only the fuel is supplied by the capillary force) is different. However, in the semi-passive type fuel cell, the fuel supply to the MEA from the fuel storage unit may be configured. Instead of using a shut-off valve in the pump, the shut-off valve is configured to turn ON/OFF control of the flow of the liquid fuel via the capillary force, and the vapor supplied to the fuel of the MEA can also be used as the fuel for all the fuels. The present invention is applicable to the case of the vapor 'but even if a part thereof is supplied in a liquid state. Next, each of the examples will be described with reference to Table 1 and Fig. 2 in comparison with comparative forces. (Example 1) As Example 1, power generation was performed at a constant voltage at room temperature, and while measuring the temporal change of the battery output at this time, the temperature and the internal pressure were simultaneously monitored, and the temperature was at the anode conductive layer. The measurement was performed immediately below the position of 9 and the pressure was measured at the central portion of the gasification fuel storage chamber 16. <Condition> Effective area of single cell: 70*10 mm Number of single cells: 6 series-17-200818592 Thickness of electrolyte membrane: 45 μm Thickness of anode catalyst layer: ΙΟΟμπι Thickness of cathode catalyst layer: ΙΟΟμπι Anode gas diffusion Thickness of layer: 3 50 μη Thickness of cathode gas diffusion layer: 3 50 μιη Thickness of anode conductive layer: 80 μm Thickness of cathode conductive layer: 80 μm 馨 Xin distance L : 5 mm Power generation time: 50 time However, the thickness of each layer is to be measured The average 値 of 1 point is expressed by each. Further, the distance L is expressed by the average 値 of the nine measurement points (1) to (9) shown in FIG. 2, that is, the measurement point of the distance L is at the four corners corresponding to the anode conductive layer 9 ( 1), (3), (7), (9), the midpoint of the 4 sides (2), (4), (6), (8) and the position of a central part (® 5) The average value of 値, and the distance L can be obtained by measuring, for example, a cross section cut by a cutting method. The results are shown in Table 1 as relative 値. (Example 2) As a fuel cell of the following conditions, each of the fuel cells satisfying the following conditions was continuously subjected to a power generation operation, and the temperature and the internal pressure of the membrane electrode assembly were measured while measuring the long-term output, and the results were expressed in terms of relative enthalpy. Table 1. -18- 200818592 <Conditions> Effective area of single cell: 70*1 0 mm Number of single cells··6 Thickness of series electrolyte membrane: 45 μm Thickness of anode catalyst layer: ΙΟΟμιη Thickness of cathode catalyst layer: ΙΟΟμιη Thickness of anode gas diffusion layer: 350 μm 礓 ^ Thickness of cathode gas diffusion layer: 350 μm Thickness of anode conductive layer: 80 μm Thickness of cathode conductive layer: 80 μm Distance L: 2.5 mm Power generation time: 50 time (Example 3) As an example 3. The fuel cells satisfying the following conditions were each continuously subjected to a power generation operation, and the long-term output was measured while measuring the temperature of the membrane electrode assembly and the internal pressure, and the results are shown in Table 1. <Condition> Effective area of single cell: 7〇*l〇mm Number of single cells: thickness of 6 series electrolyte membrane: 45 μηι Thickness of anode catalyst layer: ιοομπχ Thickness of cathode catalyst layer: ιοομπι -19- 200818592 Thickness of anode gas diffusion layer: 35 μm η Thickness of cathode gas diffusion layer: 350 μm Thickness of anode conductive layer: 80 μm Thickness of cathode conductive layer: 80 μm Distance L: 3 mm Power generation time: 50 time (Example 4) As an example 4. The fuel cells satisfying the following conditions were each continuously subjected to a power generation operation, and the long-term output was measured while measuring the temperature of the membrane electrode assembly and the internal pressure, and the results are shown in Table 1. <Condition> Effective area of single cell: 7 0 * 10 mm Number of single cells: thickness of 6 series electrolyte membrane: 45 μηι Thickness of anode catalyst layer: 100 Thickness of cathode catalyst layer: 100 μm Anode gas Diffusion layer thickness: 3 50 μηη Thickness of cathode gas diffusion layer: ΜΟμ111 Thickness of anode conductive layer: Thickness of cathode conductive layer: 80μπι Distance L: 4mm Power generation time: 50 time -20- 200818592 (Comparative example 1) In Example 1, the fuel cell that satisfies the following conditions was continuously subjected to a power generation operation, and the temperature and the internal pressure of the membrane electrode assembly were measured, and the long-term output was measured. The results are shown in Table 1. <Condition> Effective area of Lu single battery: 70*10 mm Number of single cells: Thickness of 6 series electrolyte membrane: 45 μm Thickness of anode catalyst layer: ΙΟΟμηι Thickness of cathode catalyst layer: 1〇〇μηι Anode gas diffusion Thickness of layer: 350 μm Thickness of cathode gas diffusion layer: 3 5 0 μηη Thickness of anode conductive layer: 80 μηι • Thickness of cathode conductive layer: 80 μηι Distance L: 2 mm Power generation time: 5 0 time-21 - 200818592 Table 1 From catalyst layer Distance to gasification film (mm) Distance from conductive layer to vaporized film (mm) Long-term output (relative to 値) Example 1 4.57 5 100 Example 2 2.07 2.5 85 Example 3 2.57 3 90 Example 4 3.57 4 95 Comparative Example 1 1.57 2 80 # In the first embodiment, the temperature of the membrane electrode assembly was 1.25, which exceeded the comparative example 1, and the internal pressure system was 0.8, which was lower than that of the comparative example 1, and thus, in the first embodiment, In the meantime, the heat in the initial stage of power generation is also maintained in the medium to late stages. The results of the first embodiment are taken as the reference 100100, and the results of the other embodiments 2 to 4 and the comparative example 1 are respectively indicated with respect to each other, and it is considered that as the distance L increases, the long-term output increases. It can be confirmed that the distance L is in the range of more than 2 mm and less than 5 mm, and a good long-term output is obtained. According to the present invention, good battery performance can be obtained for a long period of time. As a power source for a notebook computer, a mobile phone, a portable player, a portable game machine, and the like, a wireless power source can be obtained for continuous use. Less stable output characteristics. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an internal perspective sectional view showing a fuel cell according to an embodiment of the present invention. -22- 200818592 Fig. 2 is a plan view showing the measurement position of the distance between the vaporized film and the conductive layer. [Description of main components] 1 : Fuel cell ' 2 : Cathode catalyst layer 3 : Anode catalyst layer · 4 : Cathode gas diffusion layer 5 _ · Anode gas diffusion layer 6 : Proton conductive film 7 : Cathode conductive layer 8 : Seal Member 9: anode conductive layer 1 膜: membrane electrode assembly 1 1 : rigid body frame 1 1 2 : plural battery cells 1 3 : gas-liquid separation membrane 1 4 : fuel storage chamber structure 1 5 : liquid fuel storage chamber 1 6 _·Gasification fuel containment chamber 18: Heat-dissipating material 1 9 : Moisture plate 2 1 : Exterior cover 22 : Vent hole -23 - 200818592 23 : End of outer cover