摘要:
A polymer electrolyte fuel cell including a hydrogen-ion-conductive polymer electrolyte membrane, a pair of electrodes sandwiching the membrane, a conductive separator plate having a gas passage for supplying a fuel to one of the electrodes, and a conductive separator plate having a gas passage for supplying an oxidant to the other electrode. The metallic conductive separator plate is a type in which a conductive coat including conductive particles and glass is formed on a surface having a gas passage. As a result, the corrosion of the metallic plate is suppressed and the degradation of the power generation efficiency after extended use is also suppressed.
摘要:
In a polymer electrolyte fuel cell of the present invention, at least one of electrodes comprises conductive carbon carrying a platinum group metal catalyst, conductive carbon carrying no catalyst metal and a hydrogen ion-conductive polymer electrolyte. The preferable amount of the conductive carbon carrying no catalyst metal is equivalent to 5 to 50 wt % of the conductive carbon carrying the catalyst metal. Incorporation of the conductive carbon carrying no catalyst metal to the catalyst layer enables reduction in potential concentration on part of electron conduction channels in an electrode, whereby an electrode for a polymer electrolyte fuel cell having an excellent life characteristic can be provided.
摘要:
The present specification discloses a polymer electrolyte fuel cell characterized in that each of the cathode and the anode comprises catalyst particles, a hydrogen ion-conductive polymer electrode, a conductive porous base material and a water repellent agent, and water repellency of at least one of the cathode and the anode varies in a direction of thickness or in a plane direction. As such, by varying the degree of the water repellency of the cathode and the anode on the basis of a position, an excellent polymer electrolyte fuel cell having a high discharge characteristic or more specifically a high current-voltage characteristic in a high current density range.
摘要:
A sheet accumulation apparatus includes a tray moving device elevatably provided at an apparatus frame and having a fork member; a tray device detachably attached to the fork member; a driving device for elevating the tray moving device; and a carrier device having a hand truck frame with a fork member. An operation handle is connected to the hand truck frame for accommodating the tray device separated from the tray moving device to transport the tray device from the tray moving device. The tray moving device and the carrier device are structured so that the tray device is transferred between the tray moving device and the carrier device at an attachment/detachment position at which the tray moving device is lowered.
摘要:
In order to obtain an electrolyte membrane-electrode assembly using a thin electrolyte membrane, the present invention provides a production method of an electrolyte membrane-electrode assembly comprising: a step of forming a hydrogen ion-conductive polymer electrolyte membrane on a base material; a treatment step of reducing adhesion force between the base material and the hydrogen ion-conductive polymer electrolyte membrane; a step of separating and removing the base material; and a step of bonding a catalyst layer and a gas diffusion layer onto the hydrogen ion-conductive polymer electrolyte membrane, and, in order to obtain an electrolyte membrane-electrode assembly which has a catalyst without clogging and is excellent in electrode characteristics, the present invention provides a production method of an electrolyte membrane-electrode assembly comprising: a step of bonding a hydrogen ion-conductive polymer electrolyte membrane and a catalyst layer via a coating layer; a step of removing the coating layer; and a step of obtaining an electrolyte membrane-electrode assembly by forming a gas diffusion layer on the catalyst layer.
摘要:
A method of a sheet alignment includes carrying a sheet from a sheet discharging port; transferring the sheet on a tray device toward a sheet end regulating device; moving the sheet on the tray device in a width direction orthogonal to the sheet discharging direction for widthwise alignment; and abutting again the sheet on the tray device against the sheet end regulating device while the sheet is in the widthwise alignment. When the sheet on the tray device is transferred toward the sheet end regulating device, the sheet is transferred at a predetermined speed. Before the sheet abuts against the sheet end regulating device, the speed is reduced to provide a conveying force to the sheet without stopping. While the conveying force is continuously applied to the sheet, the sheet is aligned in the width direction to thereby prevent skewing of the sheet relative to the sheet end regulating device.
摘要:
It is difficult to realize a small fuel cell capable of being installed in mobile device by merely downsizing a conventional fuel cell without changing the configuration. The present invention provides a small fuel cell employing a polymer electrolyte thin film, by using a semiconductor process. A polymer electrolyte thin film fuel cell in accordance with the present invention comprises: a substrate having a plurality of openings; an electrolyte membrane-electrode assembly formed on the substrate so as to cover each of the openings, the assembly comprising a first catalyst electrode layer, a hydrogen ion conductive polymer electrolyte membrane and a second catalyst electrode layer which are formed successively; and fuel and oxidant supply means for supplying a fuel or an oxidant gas to the first catalyst electrode layer through the openings, and an oxidant gas or a fuel to the second catalyst electrode layer.
摘要:
An electrolyte membrane-gasket assembly for a fuel cell, including a polymer electrolyte membrane and a gasket, made of a seal material, covering the peripheral portion of the electrolyte membrane, in which the electrolyte membrane has a sequence of a plurality of through-holes in the peripheral portion, and a portion of the gasket covering one surface of the electrolyte membrane and a portion covering the other surface are connected to each other through the through-holes of the electrolyte membrane. This assembly provides a polymer electrolyte fuel cell free from gas cross leakage caused by a detachment of the gasket from the polymer electrolyte membrane. It is preferable to further include catalyst layers carried on both surfaces of the polymer electrolyte membrane, respectively, and protective films covering, respectively, sections spanning from the peripheral portion of each of the catalyst layers to the peripheral portion of the polymer electrolyte membrane.
摘要:
The present invention, relating to a method for removing dimethyl sulfide and tertiary butyl mercaptan present in city gas as the odorants, is aimed at removal of the sulfur compounds from city gas. The present invention removes dimethyl sulfide and tertiary butyl mercaptan in city gas in the presence of a sulfur compound adsorbent containing one of faujasite, &bgr;, L and MFI type zeolite. The adsorbent, being composed of zeolite and an inorganic binder, can be regenerated under heating.
摘要:
The present invention relates to an electronic incinerating apparatus for incinerating organic matter such as garbage having a high rate of water content. This apparatus is composed of a primary combustion chamber (4) into which garbage to be burned is put and a secondary combustion chamber (18) in which decomposition gas of garbage (2) is burned; and the garbage (2) is decomposed or carbonized by microwave in the primary combustion chamber (4), and the decomposition gas is burned by an igniting apparatus in the secondary combustion chamber (18) where no microwave is irradiated. This constitution is characterized in that garbage is dried by microwave to become a good quality fuel, and is thereafter decomposed and burned perfectly, and therefore the exhaust gas is clean and the garbage can be burned perfectly to ashes at high temperatures, so that the treatment is extremely sanitary. The present invention relates to a constitution, control and materials for realizing an electronic incinerating apparatus, and the above-described operation can be carried out by these matters.