摘要:
The invention concerns a monopolar fuel cell endplate (4) of the type with proton exchanging membrane consisting of a cathode or anode monopolar half-plate (41) attached to a closure plate (42). The monopolar half-plate comprises, in its central part, a cathode or anode active region (411), and, at its periphery, at least two oxidant boxes, if the monopolar half-plate is cathodic, or fuel boxes, if the monopolar half-plate is anodic. Each oxidant or fuel box comprises at least one channel (414) emerging outside the active region (411) to enable oxidant or fuel to be circulated outside the monopolar plate on the monopolar plate side, the oxidant or fuel boxes not comprising an opening emerging into the central region of the closure plate, such that the central part of said closure plate is not swept either with fuel or with oxidant.
摘要:
The invention relates to a fuel cell bipolar plate (22) comprising at least one ridge (47, 23a, 33a, 40a, 27a, 35a, 41a, 23a) on at least one of the faces (51) thereof, such as seal at least one fluid circuit in the cell from among the oxidant, fuel and coolant inlet circuits and the oxidant, fuel and coolant outlet circuits, said circuits being formed by stacking openings which are provided in the plate (22) and which form an inlet and an outlet for the oxidant and the fuel (33, 40, 35, 41) respectively and openings which form an inlet and an outlet for the coolant (23, 27) respectively during the assembly of the constituent cells (1) of the fuel cell.
摘要:
The invention concerns an electric power source comprising a fuel cell (1) and at least one flow channel (5a) whereof the inlet and the outlet are respectively connected to a reactive fluid source and to a tank (10) designed to contain the reactive fluid feeding the fuel cell and the water produced by the fuel cell. An inlet valve (11) is arranged between the reactive fluid source and the inlet of the flow channel (5a) and it is controlled by a control device (12). Once the tank (10) is filled with reactive fluid, the inlet valve (11) is closed for a first predetermined time interval (T1). It is then opened for a second predetermined time interval (T2), so as to evacuate into the tank (10), the water accumulated in the fuel cell (1) during the first time interval (T1) and to refill the tank (10) with reactive fluid.
摘要:
The invention mainly concerns a fuel cell seal (52) designed to be affixed on a bipolar plate (22) in the form of a membrane whereof the profile corresponds approximately to the peripheral frame (50) of the bipolar plate (22) and comprising a central opening (66) coinciding approximately with the central zone (46) dispensing the reagents of the bipolar plate (22). The invention also concerns a fuel cell comprising an electrode membrane assembly (70) which includes in particular an active region (74), which is the site of anode and cathode reactions, and a peripheral frame (75) and which is sandwiched between two bipolar plates (22) whereon is affixed the inventive seal (52).
摘要:
The invention concerns a bipolar plate for fuel cell, of the type comprising a cathode bipolar half-plate and an anode bipolar half-plate attached to each other, each bipolar half-plate (1) consisting of a plate including in its central part an active region (2) and at its peripheral part a plurality of cut-outs (5) designed to form at least two oxidant boxes, at least two fuel boxes and at least two coolant boxes, at least one bipolar half-plate (1) including at least one connection between one peripheral cut-out (5) and the active region (2), and including at its periphery at least one hollow housing (140) designed to receive an electrical measuring connector (141).
摘要:
Plague bipolaire pour pile a combustible, du type comprenant une demi-plague bipolaire cathodique et une demi -plaque bipolaire anodique accolees l'une a l'autre, chaque demi-plaque bipolaire (1) etant constituee d'une plaque comportant dans sa partie centrale une zone active (2) et a sa partie peripherique une pluralite de decoupes (4,5,6) destinees a constituer au moins deux bo*tes a comburant, au moins deux bo*tes a. carburant et au moins deux bo*tes a fluide caloporteur, Ia plaque bipolaire comprenant au moins un canal de liaison entre chaque decoupe peripherique et Ia zone active, caracterisee en ce que chaque canal de liaison d'une decoupe peripherique avec Ia zone active est constituee d'au moins d'une nervure (8, 8' , 10, 10' , 12) dans une demi-plaque bipolaire.