PROBLEM TO BE SOLVED: To discharge a large amount of cation impurities to the outside.SOLUTION: A fuel battery comprises: a membrane-electrode assembly 10 having an electrolyte membrane 11 and a cathode catalyst layer 12; cathode-side and anode-side water-repellent layers 14, 15 disposed on side faces of the membrane-electrode assembly on both sides thereof; and a cathode-side separator 18 having a cathode gas passage 20 disposed on a face of the water-repellent layer on the side opposite to the membrane-electrode assembly and serving to circulate air to be supplied to the catalyst layer, and an air discharge manifold 31 connected to the gas passage. The gas passage has, in a downmost flow path at a downmost position in a gravity direction with the fuel battery installed in a vehicle, a discharge water suppressing part 38 for suppressing the discharge of liquid water to the manifold, and a water storage part 22 located upstream from the discharge water suppressing part, in which the liquid water is stored with the aid of the discharge water suppressing part. The water-repellent layer is provided with a liquid water connection part 24 extending through the water-repellent layer for liquid water connection between the catalyst layer and the water storage part.SELECTED DRAWING: Figure 1
【課題】多量の陽イオン不純物を外部に排出すること。【解決手段】電解質膜11とカソード触媒層12とを有する膜電極接合体10と、前記膜電極接合体の両側の側面に配置されたカソード及びアノード側撥水層14、15と、前記撥水層の前記膜電極接合体とは反対側の面側に配置され、前記触媒層に供給される空気を流通するカソードガス流路20と前記ガス流路に接続した空気排出マニホールド31とを有するカソード側セパレータ18と、を備え、前記ガス流路は、燃料電池が車両に搭載される状態での重力方向で最も下側に位置する最下流路に、前記マニホールドへの液水の排水を抑制する排水抑制部38と前記排水抑制部よりも上流側で前記排水抑制部によって液水が溜まる貯水部22とを有し、前記撥水層には、前記撥水層を貫通し、前記触媒層と前記貯水部との間で液水の接続を可能とする液水接続部24が設けられている燃料電池。【選択図】図1
FUEL BATTERY AND FUEL BATTERY SYSTEM
燃料電池及び燃料電池システム
2017-06-29
Patent
Electronic Resource
Japanese
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
FUEL BATTERY SYSTEM AND FUEL BATTERY SYSTEM CONTROL METHOD
European Patent Office | 2023
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