Abstract:
PROBLEM TO BE SOLVED: To provide a polymer electrolyte fuel cell capable of promptly running a coolant or the like without leaking it. SOLUTION: This polymer electrolyte fuel cell has this adhesive layer for a polymer electrolyte fuel cell characterized by containing 8-35 vol.% of conductive fine particle powder of which the average particle diameter is not larger than 25 μm, and in which 50 vol.% of all the particles have each a particle diameter not smaller than 5 μm; and is structured such that an intermediate plate 1-3 is sandwiched between, and brought into contact with an anode facing plate 1-1 and a cathode facing plate 1-2. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To measure the temperature in a heat treatment furnace with high accuracy by suppressing the error between the actual temperature in the furnace and a measured temperature even when the emissivity of an object is unknown and the temperature in the furnace is uneven. SOLUTION: A light introduction tube 1 has one closed end 1a being brought closely to an object in a heat treatment furnace and a radiation part 11 having effective emissivity substantially equal to 1 is provided at that end. When the emissivity of the object is unknown, effective emissivity thereof can be considered to be substantially equal to 1. Effective emissivity at the radiation part 11 can be prevented from varying even if the temperature in the heat treatment furnace is uneven and the error between the actual temperature in the furnace and a measured temperature can be suppressed.
Abstract:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a seamless steel pipe, which can efficiently manufacture the seamless steel pipe by reliably improving a service life of a boring rolling plug without declining efficiency of boring rolling.SOLUTION: When boring rolling is performed by using a plug in which a protective coating is formed on the surface, a lubricant of a water solution including 5-30 mass% in total of one type or two types or more out of boric oxide, boric acid and boric acid amine salt is applied to the protective coating on the plug surface. The plug is used for the boring rolling. After the boring rolling, the plug is cooled, and in the state where surface temperature of the plug tip is lowered to 100°C or less, the lubricant is applied. It is preferable to use the plug for the boring rolling again. Preferably, the protective coating on the plug surface is formed by electric arc spraying of an iron wire material on the surface of a plug base material, and comprises oxide and Fe.
Abstract:
PROBLEM TO BE SOLVED: To provide a stainless-steel material for a separator of a solid polymer fuel cell excelling in battery characteristics, wherein performance deterioration is lessened at a long operation, without damaging the corrosion resistance of a stainless-steel separator. SOLUTION: The stainless-steel material comprises a stainless-steel basic material, an oxide film arranged on the surface of the stainless-steel basic material, a conductive layer arranged on the surface of the oxide film and having a non-metallic conductive material, and a conductive material arranged to penetrate the oxide film and electrically connected with the stainless-steel basic material and the conductive layer. a solid polymer fuel cell uses the stainless-steel material. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a solid polymer type fuel cell which does not cause leakage of oxide gas, fuel gas or a cooling medium and can make them flow and provide its composing parts, a bipolar plate member, a bipolar plate lamination and a cell structural body. SOLUTION: The bipolar plate member 1 of a solid polymer type fuel cell using a membrane electrode assembly is provided with penetrated holes 2, 3 to make an oxide gas, a fuel gas and a cooling medium flow through each of corresponding passages, a passage groove 4 for making the oxide gas and the fuel gas flow and a passage groove 5 for making the cooling medium flow. At least on a second surface, a plane molded body 7 made of a plastic film is stuck with an adhesive layer in-between, and the plane molded body 7 is provided a penetrated hole 3 for making at least the cooling medium flow into the passage. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a plug which enables flaws on the internal surface of a hollow tube stock formed by piercing/rolling to be prevented, and can be produced without requiring long production time and has the prolonged life. SOLUTION: The plug 2 includes: a front portion 21 having a convex curvature; a column portion 22 having approximately a columnar shape; a trunk portion 23 having an outside diameter which is enlarged gradually toward the rear end; a mandrel connecting portion 26 provided in the rear end portion of the plug 2 and a lubricant jetting hole 24 which penetrates the trunk portion 23 from the mandrel connecting portion 26 and opened on the surface of the column portion 22. On the surface of the base metal of the front portion 21 and of the trunk portion 23, a coating film 27 which is composed of oxides and Fe is formed by arc spraying method using an iron wire. During piercing/rolling, the plug 2 pierces a base stock while jetting the lubricant from the jetting hole 24. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a negative electrode material and a manufacturing method of the same having high discharge capacity and discharge/charge efficiency, an excellent cycle life, and stable performance by improving the cycle life of the negative electrode material for a nonaqueous electrolyte secondary battery having an active material phase (a phase reversely reacting with Li) of high capacity such as Si and Sn, and an inactive phase (for example, CoSi 2 ). SOLUTION: This manufacturing method conducts mechanical grinding processing (crushing and granulation by grinding) of the negative electrode material obtained by quenching from molten metal with a ball mill type device (an attritor, vibrating ball mill, planetary ball mill or the like), or conducts the mechanical grinding processing of mixture of fine powder of the active material phase and the inactive phase. A contained rate of the active material phase does not change before and after the processing. The active material phase of the negative electrode material subjected to the mechanical grinding processing is fined, and a peak strength of at least one active material phase becomes not more than 50 % of the peak strength before the mechanical grinding processing in an X-ray diffraction pattern. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a negative pole material for a secondary transition metal oxide lithium battery that has good charging and discharging capacity and efficiency and has a very low discharging voltage against lithium so that the discharging voltage of the battery is very high when used for the negative pole. SOLUTION: The negative material comprising lithium-vanadium composite oxide with a composition of 2.5>Li/V molar ratio>1.1 is formed by mixing a lithium source and vanadium source at a composition of 2>Li/V molar ratio>1.1 in which at least one of the sources is a compound containing oxygen, and by firing the mixture in a non-oxidizing atmosphere at a temperature not lower than 650°C. The negative material contains a crystal having the ratio of the lattice constants of a and c being c/a≤5.17 that is indexed by hexagonal system. The negative material has an endothermic peak in the range between 120 and 140°C in heating in DSC. COPYRIGHT: (C)2003,JPO
Abstract translation:要解决的问题:为了提供具有良好的充放电能力和效率的二次过渡金属氧化物锂电池的负极材料,并且对锂的放电电压具有非常低的放电电压,使得当使用时电池的放电电压非常高 为负极。 解决方案:组成为2.5> Li / V摩尔比> 1.1的锂钒复合氧化物的负材料是通过以2> Li / V摩尔比> 1.1的组成混合锂源和钒源形成的,其中在 至少一种来源是含有氧的化合物,并且在不低于650℃的温度下在非氧化性气氛中烧制该混合物。 负材料含有一个晶体,其晶格常数a和c之间的比值为c / a <= 5.17,由六方晶系指数。 负极材料在DSC中加热时具有120-140℃范围内的吸热峰。
Abstract:
PROBLEM TO BE SOLVED: To provide a tubular body measuring method capable of accurately and speedily measuring the characteristics of a tubular body to be measured by a non-contact way independent of the temperature of the tubular body to be measured. SOLUTION: Laser light 5 shone from a laser 2 becomes incident onto a point F at an angle θ1 in a silica tube 1. The incident laser light 5 is branched into laser light 5a reflected at the point F to form a spot at a point A1 in a screen 3, laser light 5c reflected at a point G to form a spot at a point A2 in the screen 3, laser light 5e reflected at a point P to form a spot at a point A3 in the screen 3, and laser light 5h emitted from a point Q to form a spot at a point B1 in a screen 4. The laser light 5 which does not transmit through the silica tube 1 forms a spot at a point C1 in the screen 4. The image of each spot is picked up to grasp the inner diameter (d), wall thickness (t), and outer diameter L of the silica tube on the basis of the distances (a), (b), and (e) between the spots and the angle θ1.
Abstract:
PROBLEM TO BE SOLVED: To quickly and accurately provide method and apparatus for measuring the characteristics of a plate, without touching the plate and independently from the temperature of the plate. SOLUTION: A laser beam 4, projected from a laser 2, impinges on a plate 1 at an angle of θ1. A part 4a of the incident laser beam 4 is refracted on the surface 7 and rear surface 8 of the plate 1, to form a spot at point A1 on a screen 3. The remaining laser beam 4b is reflected on the rear surface 8 and surface 7 of the plate 1 and then refracted on the rear surface 8 to for a spot at point A2 on the screen 3. The laser beam 4 is projected from the laser 2, in a state with the plate 1 removed. The laser beam 4 advances straight through the atmosphere, to form a spot at point B on the screen 3. Image of each spot is picked up by means of a CCD camera 11, and positional data A1, A2 and B are transmitted to a computer 12. Thickness and the refractive index of the plate 1 are determined, based on each data.