摘要:
In the method of the present invention for producing a hydrogen-storing alloy, part or whole of single substance of Zr as a starting material is replaced with a ferrozirconium or a zircalloy. This method enables production of a hydrogen-storing alloy at reduced material and production costs and with high efficiency and safety of work. The alloy produced by this method has high homogeneity with no segregation. It is thus possible to obtain a hydrogen-storing alloy superior in hydrogen-storing characteristics such as hydrogen storage capacity, reaction speed, and electrode reaction efficiency in an electrolyte. It is also possible to obtain, by using this alloy, a nickel-hydrogen storage battery having a large storage capacity and capable of performing quick charging and discharging, while exhibiting longer life and higher economy.
摘要:
The disclosure is directed to an improved hot water supply unit of a heat pump type which employs metal hydrides for less movable parts, simple construction, quiet operation and reduction in cost.
摘要:
A connecting material can form a detachable connecting structure. According to the connecting material, a connecting portion between a certain object and another object can be more readily formed, and the certain object can be more readily detached from the another object after formation of the connecting portion. The connecting material comprises a solder material and a hydrogen storage metal material which is able to occlude hydrogen, and which is in the form of particles dispersed in the connecting material.
摘要:
A hydrogen absorbing alloy comprising Laves phases with a C14-type crystal structure is provided. The alloy can absorb or release different hydrogen isotopes one after another in accordance with changes In pressure, by utilizing the differences in equilibrium absorption or desorption pressures of the respective hydrogen isotopes. This alloy can be used to effectively separate hydrogen isotopes by utilizing the differences in equilibrium absorption or desorption pressures between the respective hydrogen isotopes, or by utilizing the differences in desorption rates between the hydrogen isotopes.
摘要:
This invention provides a solid electrolyte fuel cell operable with high efficiency even in the temperature range of about 850.degree. to 650.degree. C., The invention is characterized by the use of a novel perovskite double oxide of the composition A.sub.X B.sub.Y O.sub.3-.alpha.. The fabrication of the electrolyte, air electrode and fuel electrode layers by tape casting has contributed to marked improvement in processability and productivity.
摘要:
The disclosure relates to a hydrogen storage material composed of a Ti-Mn-M alloy in which M represents at least one metal selected from the group consisting of vanadium, chromium, iron, cobalt, nickel, copper and molybdenum, and which defines an alloy phase of a Laves phase having a hexagonal crystal structure of MgZn.sub.2 (C.sub.14) type and crystal lattice parameters a=4.86.about.4.90A and C=7.95.about.8.02A. The hydrogen storage material is economical and suited to practical purposes, since it readily absorbs a large amount of hydrogen at room temperature and reversibly discharges a large amount of hydrogen with safety through variations of ambient hydrogen pressure, temperature conditions or electro-chemical conditions.
摘要:
An economical metallic material for storage of hydrogen comprising an alloy representable by the formula AB.alpha. in which "A" comprises from 50 to under 100 atomic percent of titanium and the remainder which is at least one element selected from the group I consisting of zirconium and hafnium, B comprises from 30 to below 100 atomic percent of manganese and the remainder which is at least one element selected from the group II consisting of chromium, vanadium, niobium, tantalum, molybdenum, iron, cobalt, nickel, copper and rare earth elements, and .alpha. is a value indicating a ratio of B to A, and is in the range of 1.0 to 3.0.The materials of the invention very easily absorb large amounts of hydrogen and efficiently release it at other predetermined temperatures, pressures and electrochemical conditions, whereby it is able to store hydrogen safely, usefully and economically.
摘要:
The present invention relates to a mixing ion conductive material for use in an electrochemical device such as a fuel cell or a sensor and more particularly to the super ion conductive material based on protons or oxide cations and also to a synthesizing method of the mixing ion conductive material.A mixing ion conductive oxide which has a proton conductivity and/or oxide cation conductivity and has a composition comprising 1 mol of barium oxide, 1-x mol of cerium oxide and x mol of gadolinium oxide; wherein 1>x>0.1. When x=0.2, the mixing ion conductive material shows a conductivity shown in FIG. 2. The oxide sintered body mentioned above has a density higher than 96.5% of the theoretical density and a grain size of 0.1 to 10 micron. The synthesizing method of the oxide sintered body is characterized by that the powders for use in the final heat treatment is crushed into a particle size less than 3 micron and is subjected to a vacuum drying process. Further, the sintering temperature is specified to a temperature between 1635.degree. C. and 1665.degree. C.
摘要:
A molten carbonate fuel cell includes unit cells and separator plates stacked alternately, with each unit cell having an anode of porous nickel-base alloy, a cathode of porous nickel-oxide doped with lithium, and an electrolyte plate including a eutectic mixture of a carbonate of alkaline metals disposed between the anode and cathode. The separator plate is a heat-resistant metal plate. The anode of porous nickel-base alloy contains 1 to 10 weight % of at least one of molybdenum and tungsten, resulting in less deterioration after a long operation.
摘要:
There is provided an internal reforming type molten carbonate fuel cell comprising unit cells, bipolar plates and plate-like reformer each having the same peripheral shape and being stacked to form a cell stack which is penetrated by an inside manifold for supplying the raw fuel, exhausting the reacted gas, etc., wherein the plate-like reformer is provided with props and reforming catalyst so arranged that uniform temperature distribution in the cell, reduced IR loss in operation, and long life were obtained.