摘要:
A fuel cell system (11) has different allowable changes per unit time in an operation range of a fuel cell (14), in both a first output range of the fuel cell (14) and a second output range of the fuel cell (14), the second output range being lower than the first output range. The allowable change per unit time in the output of the fuel cell (14) in the second output range is smaller than the allowable change per unit time in the output of the fuel cell (14) in the first output range.
摘要:
The present invention provides an electrode structure for polymer electrolyte fuel cells, inexpensive, and exhibiting excellent power production capacity and durability even under high temperature/low humidity conditions, and also provides a polymer electrolyte fuel cell which incorporates the same electrode structure. The present invention also provides an electrical device and transportation device, each incorporating the same polymer electrolyte fuel cell. The electrode structure comprises a pair of electrode catalyst layers 1,1, each containing a catalyst supported by carbon particles, and polymer electrolyte membrane 2 placed between these electrode catalyst layers 1,1. The polymer electrolyte membrane 2 is of a sulfonated polyarylene composed of 0.5 to 100% by mol of the first repeating unit represented by the general formula (1) and 0 to 99.5% by mol of the second repeating unit represented by the general formula (2): (wherein, A is a divalent organic group; and a benzene ring includes its derivative), (wherein, -W- is a divalent electron attracting group; - T- is a divalent organic group; and R 1 to R 8 are a hydrogen atom or fluorine atom, an alkyl group, fluorine-substituted alkyl group, allyl group, aryl group or cyano group, and may be the same or different).
摘要翻译:本发明提供一种廉价的电池结构体,即使在高温/低湿条件下也具有优异的发电量和耐久性,并且还提供了结合了相同的电极结构的固体高分子型燃料电池。 本发明还提供了一种电气装置和运输装置,每个都装有相同的聚合物电解质燃料电池。 电极结构包括一对电极催化剂层1,1,每个电极催化剂层1,1包含由碳颗粒负载的催化剂和位于这些电极催化剂层1,1之间的聚合物电解质膜2。 聚合物电解质膜2是由通式(1)表示的第一重复单元为0.5〜100摩尔%,通式(2)表示的第二重复单元为0〜99.5摩尔%的磺化聚亚芳基 ):(其中,A为二价有机基团,苯环包括其衍生物),CHEM(其中,-W-为二价吸电子基团; -T为二价有机基团; R 1至R 8为氢原子或氟原子,烷基,氟取代的烷基,烯丙基,芳基或氰基,可以相同或不同)。
摘要:
A fuel cell (22) having an oxygen-containing gas flow field (34) and a fuel gas flow field (36), an oxygen-containing gas supply apparatus (14) for supplying an oxygen-containing gas to the oxygen-containing gas flow field (34), a fuel gas supply apparatus (16) for supplying a fuel gas to the fuel gas flow field (36), a scavenging gas supply apparatus (18) for supplying air as a scavenging gas to the fuel gas flow field (36), and a controller (20) are provided. The controller (20) includes a voltage detection unit (72) for detecting the voltage of the fuel cell (22) after operation of the fuel cell (22) is stopped and a scavenging control unit (74) for starting scavenging in the fuel gas flow field (36) by the scavenging gas supply apparatus (18) after the detected voltage is decreased temporarily, increased, and decreased again to become a preset voltage or less.