摘要:
Disclosed is a method for producing a membrane electrode assembly for a fuel cell, including: dispersing a catalyst and a conductive binder into a dispersion solvent to provide catalyst slurry; subjecting the catalyst slurry to stirring, sonication and homogenization; applying the catalyst slurry onto a substrate, followed by drying; transferring the substrate coated with the catalyst slurry to either surface or both surfaces of an electrolyte membrane to form a catalyst layer; dipping the substrate, the catalyst layer and the electrolyte membrane obtained after the preceding operation into liquid nitrogen; and removing the substrate to provide an electrolyte membrane having the catalyst layer formed thereon.
摘要:
A membrane-electrode binder for a fuel cell, a method of manufacturing the binder, and a fuel cell comprising the binder are provided, in which the membrane-electrode binder comprises a dual electrode constituted by a first electrode and a second electrode in a two-layer form, and a polymer electrolyte membrane disposed on the dual electrode, the dual electrode comprising an electrode substrate and a catalyst layer formed thereon. In detail, the membrane-electrode binder comprises the dual electrode that is constituted by the first electrode obtained by using a PBI-based binder, the second electrode obtained by using a PTFE-based binder, and an inorganic acid doped PBI-based polymer electrolyte membrane disposed on the dual electrode and coming in contact with the first electrode. In the configuration of the dual electrode, the PBI-based binder used for manufacturing the first electrode contributes to enhancing an adhesive strength with the inorganic acid doped PBI-based polymer electrolyte membrane, and the PTFE-based binder used for manufacturing the second electrode contributes to suppressing the emission of an inorganic acid from the inorganic acid doped PBI-based polymer electrolyte membrane, together improving the performance of a fuel cell.
摘要:
Provided is a reinforced matrix for molten carbonate fuel cell, wherein a mechanical strength of the matrix is increased by adding a reinforcing agent having a low melting point.
摘要:
A separator for cooling an MCFC has a cooling gas flow path provided in the separator, a cooling anode gas or a cooling cathode gas flowing through the cooling gas flow path, the cooling anode gas or the cooling cathode gas having a temperature lower than that of a general anode gas or a general cathode gas which is supplied to an anode or a cathode of the MCFC.
摘要:
The present invention relates to a method for manufacturing composite polymer electrolyte membranes coated with inorganic thin films for fuel cells using a plasma enhanced chemical vapor deposition (PECVD) method or a reactive sputtering method, so as to reduce the crossover of methanol through polymer electrolyte membranes for fuel cells and enhance the performance of the fuel cells. The manufacturing method of composite polymer electrolyte membranes coated with inorganic thin films for fuel cells according to the present invention is characterized to obtain composite membranes by coating the surface of commercial composite polymer electrolyte membranes for fuel cells with inorganic thin films using a PECVD method or a reactive sputtering method. The inorganic materials to form the inorganic thin films are chosen one or more from the group comprising silicon oxide (SiO2), titanium oxide (TiO2), zirconium oxide (ZrO2), zirconium phosphate (Zr(HPO4)2), zeolite, silicalite, and aluminum oxide (Al2O3). The present invention, by coating the polymer electrolyte membranes for fuel cells with inorganic thin films via a PECVD method or a reactive sputtering method, reduces the methanol crossover sizably without seriously reducing the ionic conductivity of polymer electrolyte membranes, thereby, when applied to fuel cells, realizes a high performance of fuel cells.
摘要翻译:本发明涉及使用等离子体增强化学气相沉积(PECVD)法或反应溅射法制造涂覆有燃料电池的无机薄膜的复合聚合物电解质膜的方法,从而减少甲醇通过聚合物电解质膜的交叉 用于燃料电池并增强燃料电池的性能。 根据本发明的用于燃料电池的无机薄膜的复合高分子电解质膜的制造方法的特征在于,通过使用PECVD法或无机薄膜将无机薄膜涂覆用于燃料电池的市售复合高分子电解质膜的表面,来获得复合膜 反应溅射法。 形成无机薄膜的无机材料选自一种或多种,其中包括氧化硅(SiO 2),氧化钛(TiO 2),氧化锆(ZrO 2) 磷酸锆(Zr(HPO 4)2)),沸石,硅沸石和氧化铝(Al 2 O 3) SUB> O 3 3)。 本发明通过PECVD法或反应溅射法通过用无机薄膜涂覆燃料电池用聚合物电解质膜,可以在不严重降低聚合物电解质膜的离子电导率的情况下,相应地降低甲醇交换,从而当应用于燃料电池 实现燃料电池的高性能化。
摘要:
Disclosed is a catalyst for a partial oxidation reforming reaction of fuel in the form of disk having through-hole. In addition, according to the invention, there is provided a fuel reforming apparatus and method using the catalyst. The catalyst for a partial oxidation reforming reaction of fuel according to the invention makes it possible to progress the partial oxidation reforming reaction of fuel smoothly, to improve the efficiency when reforming the fuel and to simplify the fuel reforming reactor. According to the fuel reforming apparatus and method, since the heat of reaction is efficiently controlled and used, a simple on-off operation, reduction of starting time and a stable operational condition are accomplished, which are indispensably required for a fuel reforming system in fuel cells, such as household, portable and car fuel cells.
摘要:
Disclosed is a catalyst for a partial oxidation reforming reaction of fuel in the form of disk having through-hole. In addition, according to the invention, there is provided a fuel reforming apparatus and method using the catalyst. The catalyst for a partial oxidation reforming reaction of fuel according to the invention makes it possible to progress the partial oxidation reforming reaction of fuel smoothly, to improve the efficiency when reforming the fuel and to simplify the fuel reforming reactor. According to the fuel reforming apparatus and method, since the heat of reaction is efficiently controlled and used, a simple on-off operation, reduction of starting time and a stable operational condition are accomplished, which are indispensably required for a fuel reforming system in fuel cells, such as household, portable and car fuel cells.
摘要:
Disclosed is an electrode having a novel configuration for improving performance of the electrode used in solid-oxide fuel cells, sensors and solid state devices, in which the electrode providing electron conductivity is coated with ion conductive ceramic ceria film, enabling an electron conductive path and an ion conductive path to be independently and continuously maintained, and additionally extending a triple phase boundary where electrode/electrolyte/gas are in contact, and a method for manufacturing the same. The electrode is manufactured by coating the prefabricated electrode for use in a SOFC or sensor with a porous oxygen ion conductive ceramic ceria film by a sol-gel method, whereby the electron conductive material and ion conductive material exist independently, having a new microstructure configuration with a greatly extended triple phase boundary, thus improving electrode performance. Accordingly, such electrode does not require high cost equipment or starting materials, owing to the sol-gel method by which low temperature processes are possible. Moreover, the electrode microstructure can be controlled in an easy manner, realizing economic benefits, and the electrode/electrolyte interfacial resistance and electrode resistance can be effectively decreased, thereby improving performance of electrodes used in SOFCs, sensors and solid state devices.
摘要:
An internal reforming molten carbonate fuel cell having a membrane for intercepting carbonate vapor and hydrated vapor is disclosed. The intercepting membrane is made from nickel or nickel alloy which has a high electrical conductivity, corrosion resistant property in an anode environment, and a low affinity for the carbonate vapor. Due to the presence of the intercepting membrane, the transfer of the carbonate vapors and hydrated vapors to the internal reforming catalyst is markedly retarded to prolong the catalytic activity. As a result, a longer operating molten carbonate fuel cell can be obtained.