摘要:
The bipolar plate is of a relatively simple design and a low production cost. In addition, it only requires two supply ducts.It consists essentially of a separator (20) sandwiched between two distributors (14) each consisting of a deformed sheet so that a distribution channel (16A, 16B) is formed on each of the two sides. A central hole (15) is used to connect both channels so as to only form a single distribution channel from one end of the distributor to the other. The fuel and oxidant gases may be evacuated to the outside or collected in peripheral evacuation holes (28) similar to the supply holes (17).
摘要:
A tubular fuel cell module having improved current collecting efficiency. In one embodiment, the fuel cell module includes: a fuel cell unit; a first current collector extending along an outer side of the fuel cell unit; and a second current collector wound around the first current collector and around the outer side of the fuel cell unit. Here, the outer side of the fuel cell unit is a curved outer side, the first current collector has a curved inner side facing the curved outer side of the fuel cell unit, and the curved inner side of first current collector is shaped to match the curved outer side of the fuel cell unit.
摘要:
An interconnect structure is disclosed for use in solid oxide electrolytic devices that use chrome-containing components, such as solid oxide fuel cells and solid oxide oxygen-generators. The invention provides a reliable and durable interconnect for both structural and electrical components of such devices. In general, the interconnect structure relies on a dual-layer, high-temperature seal which provides an effective diffusion barrier for both chrome and oxygen. As a result of the described interconnect, corrosion or loss in electrical conductivity in such solid oxide electrolytic devices is avoided. Also, a novel structure for such solid oxide electrolytic devices is disclosed, which provides an economical and high-integrity structure that utilizes the disclosed interconnect structure. A result of the present invention is that thin film solid oxide fuel cells and solid oxide oxygen generators may be fabricated using only metal alloys as bulk components.
摘要:
Gas discharge ports are provided in almost the entire area of a layer surface of a separator, and a gas for reaction is discharged like a shower from the separator toward a power generation cell. The separator is constructed by layering plate-shaped members containing iron-base alloy, nickel-base alloy, or chrome-base alloy as the base material. Silver, silver alloy, copper, or copper alloy is plated on both sides or one side of the base material of the plate-shaped member. The construction above can increase durability of a separator and enables the separator and a solid oxide fuel cell to be stably used for a long period.
摘要:
The disclosure relates to a fuel cell including a solid electrolyte layer disposed on a separator plate. Another separator plate positioned adjacent the separator plate mounting the solid electrolyte layer are joined to a surface of the first separator plate to form an electrode separator assembly having a chamber between the joined separator plates. Working fluids may be supplied to or exhausted from the chamber through openings in fluid communication. A porous support member may be positioned within the chamber. The first separator plate and the porous support member may include a multiplicity of ribs defining channels in fluid communication with the chamber.
摘要:
A structural reinforcement for a pressurized plastic electrochemical cell stack is described with a first endplate and a second endplate, wherein the first endplate and the second endplate are each connected to a structural reinforcement along an axial direction such that the reinforcement extends through the first endplate and the second endplate and provides for compressing the first endplate and the second endplate against a bilithic or monolithic plastic electrochemical cell stack internal to the reinforcement, thereby sealing a gas generation cell within the reinforcement and thus providing enhanced creep resistance of the electrochemical cell stack.
摘要:
A solid electrolyte type fuel cell which incorporates a metal separator comprising a base material of a metal other than silver or a silver alloy which is plated with silver or a silver alloy. The fuel cell can achieve improved efficiency for electricity generation with no increase of the resistance of the metal separator, even when it is operated at a low temperature.
摘要:
Gas discharge ports are provided in almost the entire area of a layer surface of a separator, and a gas for reaction is discharged like a shower from the separator toward a power generation cell. The separator is constructed by layering plate-shaped members containing iron-base alloy, nickel-base alloy, or chrome-base alloy as the base material. Silver, silver alloy, copper, or copper alloy is plated on both sides or one side of the base material of the plate-shaped member. The construction above can increase durability of a separator and enables the separator and a solid oxide fuel cell to be stably used for a long period.
摘要:
A lightweight direct methanol fuel cell unit (20) comprising a fuel cell stack (24) enclosed within a housing (22). In one embodiment the fuel cell stack includes a plurality of polymer electrolyte membrane electrode assemblies (52) stacked alternatingly with a plurality of bipolar plates (48). Each bipolar plate includes a cathode flow field (78) defined by a porous cathode flow field structure (56) and an anode flow field (62) defined by an upper plate (58) and a lower plate (60) separated from one another by a plurality of spacers (64). The anode flow fields are manifolded with one another via manifold embossments (118, 120) that are hermetically sealed with one another with a gasket (126). The fuel cell stack and housing are shaped so as to form four manifold regions (36) in the spaces between the fuel cell stack and housing. The fuel cell stack is compressed within the housing by compression members (94) located between the fuel cell stack and housing so as to place the sidewall (30) of the housing into tension. Supporting systems for the fuel cell unit include a fuel handling system (502), an oxidant handling system (600), and a liquid inventory control system (700).
摘要:
A method of fabricating a high density thin component which can be used in an electrochemical converter comprises tape casting a material to form a tape followed by hot pressing of the tape to provide additional densification of the material. A plurality of tapes may be laminated together prior to hot pressing to provide a thicker structure or a composite structure. The materials used to produce the component may include silicon carbide, SiC, high chromium alloys, chromium iron alloys, (Cr-5 wt % Fe-1 wt % Y2O3) and chromium magnesium alloys (Cr-5 wt % Ni-1 wt % MgO). The fabrication method produces a high density component, including the application in an electrochemical converter, having a thickness of less than about 0.03 inches.
摘要翻译:可以用于电化学转化器的制造高密度薄组分的方法包括将材料带铸成材料以形成带,随后热压带,以提供材料的附加致密化。 多个带可以在热压之前层叠在一起以提供更厚的结构或复合结构。 用于制造组分的材料可以包括碳化硅,SiC,高铬合金,铬铁合金(Cr-5重量%Fe-1重量%Y 2 O 3)和铬镁合金(Cr-5重量%Ni-1重量% MgO)。 制造方法产生高密度组分,包括在电化学转化器中的应用,其厚度小于约0.03英寸。