Abstract: A gas storage tank for storing a gas, the tank has an opening formed on at least one of two ends; a filling unit that is housed in the tank; and a support member that is arranged between the tank and the filling unit and holds the filling unit in the tank to connect a whole gap formed between the tank and the filling unit with the opening.

Abstract: The present invention is to provide a method for forming a multi-layer coating film, which can combine a pre-treating step conducted for a metal substrate, before electrodeposition coating, and an electrodeposition coating step. The method comprises: a step of dipping a material to be coated in an aqueous coating composition comprising (A) a rare earth metal compound, (B) a base resin having a cationic group, and (C) a curing agent, wherein a content of the rare earth metal compound (A) in the aqueous coating composition is limited to specific range; a pre-treating step of applying a voltage of less than 50 V in the aqueous coating composition, wherein the material to be coated is used as a cathode; and an electrodeposition coating of applying a voltage of 50 to 450 V in the aqueous coating composition, wherein the material to be coated is used as a cathode.

Abstract: The technique of the invention manufactures a gas storage tank, which includes a gas absorbent/adsorbent and is capable of storing a high-pressure gas. The manufacturing process of a hydrogen storage tank first assembles a heat exchanger unit and packs the particles of hydrogen storage alloy into the heat exchanger unit. The manufacturing process then blocks hydrogen storage alloy filling holes used for packing the hydrogen storage alloy in the heat exchanger unit and attaches a detachable cover member to a hydrogen inlet. The manufacturing process subsequently locates the heat exchange unit filled with the hydrogen storage alloy in a cylindrical tank and narrows both ends of the tank to form joint openings. The manufacturing process then heat-treating the tank under water cooling and detaches the cover member. The manufacturing process attaches joint assemblies to the joint openings and forms a reinforcement layer around the outer circumference of the tank to complete the hydrogen storage tank.

Abstract: The technique of the invention manufactures a gas storage tank, which includes a gas absorbent/adsorbent and is capable of storing a high-pressure gas. The manufacturing process of a hydrogen storage tank first assembles a heat exchanger unit and packs the particles of hydrogen storage alloy into the heat exchanger unit. The manufacturing process then blocks hydrogen storage alloy filling holes used for packing the hydrogen storage alloy in the heat exchanger unit and attaches a detachable cover member to a hydrogen inlet. The manufacturing process subsequently locates the heat exchange unit filled with the hydrogen storage alloy in a cylindrical tank and narrows both ends of the tank to form joint openings. The manufacturing process then heat-treating the tank under water cooling and detaches the cover member. The manufacturing process attaches joint assemblies to the joint openings and forms a reinforcement layer around the outer circumference of the tank to complete the hydrogen storage tank.

Abstract: A control unit 40 acquires acceleration ? sensed by an acceleration sensor 31, and if the control unit 40 determines that acceleration ? does not equal zero, the control unit 40 again acquires acceleration ?. In the event that the control unit 40 decides that acceleration ? equals zero, the control unit 40 acquires the weight M sensed by the weight sensor 30. The control unit 40 continues sampling of weight M until a predetermined sampling period has elapsed. Once the sampling period has elapsed, the control unit 40 calculates the average of weight M obtained through sampling, and uses the calculated average and a map to determine hydrogen amount.

Abstract: A hydrogen storage apparatus that includes multiple gas storage tanks that each house a storing/adsorbing material and through the interior of which a fluid travels is provided. The gas storage apparatus 10 includes roughly cylindrical gas storage tanks 20 that house hydrogen-storing alloy. The multiple gas storage tanks 20 are disposed longitudinally parallel to each other in an ordered fashion such that roughly triangular prism-shaped empty spaces are formed between multiple adjacent hydrogen storage tanks 20. Coolant paths through which coolant flows are formed in these roughly triangular prism-shaped empty spaces. These coolant paths are thermally connected to the hydrogen-storing alloy in the gas storage tanks 20 via constituent members of the gas storage tanks 20 and via heat transfer plates 28 disposed on the gas storage tanks 20.

Abstract: In a fuel cell system 10, a refrigerant channel 70 that circulates refrigerant is configured to exchange heat between the refrigerant and each of a fuel cell 30, a hydrogen storage tank 20 having a hydrogen storage alloy, and a radiator 50. The hydrogen storage alloy has a higher absorption temperature at which absorption and release become equilibrium under the predetermined hydrogen pressure than the temperature of the fuel cell 30 in a steady-state operation. The refrigerant after cooling the fuel cell carries the heat generated by hydrogen absorption to the hydrogen storage alloy during storing from the tank 20 and facilitates absorption of hydrogen.

Abstract: A control unit 40 acquires acceleration ? sensed by an acceleration sensor 31, and if the control unit 40 determines that acceleration ? does not equal zero, the control unit 40 again acquires acceleration ?. In the event that the control unit 40 decides that acceleration ? equals zero, the control unit 40 acquires the weight M sensed by the weight sensor 30. The control unit 40 continues sampling of weight M until a predetermined sampling period has elapsed. Once the sampling period has elapsed, the control unit 40 calculates the average of weight M obtained through sampling, and uses the calculated average and a map to determine hydrogen amount.

Abstract: A hydrogen-storage container which demonstrates a high hydrogen-storage capacity, which is reduced in mass, and which is suited to be installed in an automobile is provided. In a hydrogen-storage container holding a hydrogen-occlusion alloy in which hydrogen is occluded, an air gap portion formed in the container is filled with hydrogen gas whose pressure is above a plateau equilibrium pressure of hydrogen gas contained in the hydrogen-occlusion alloy at a temperature of a location where the hydrogen-storage container is installed. This hydrogen-storage container has a liner made of metal or resin, and a fiber-reinforced resin layer provided outside the liner.

Abstract: A hydrogen storage apparatus that includes multiple gas storage tanks that each house a storing/adsorbing material and through the interior of which a fluid travels is provided. The gas storage apparatus 10 includes roughly cylindrical gas storage tanks 20 that house hydrogen-storing alloy. The multiple gas storage tanks 20 are disposed longitudinally parallel to each other in an ordered fashion such that roughly triangular prism-shaped empty spaces are formed between multiple adjacent hydrogen storage tanks 20. Coolant paths through which coolant flows are formed in these roughly triangular prism-shaped empty spaces. These coolant paths are thermally connected to the hydrogen-storing alloy in the gas storage tanks 20 via constituent members of the gas storage tanks 20 and via heat transfer plates 28 disposed on the gas storage tanks 20.

Abstract: The technique of the invention manufactures a gas storage tank, which includes a gas absorbent/adsorbent and is capable of storing a high-pressure gas. The manufacturing process of a hydrogen storage tank first assembles a heat exchanger unit and packs the particles of hydrogen storage alloy into the heat exchanger unit. The manufacturing process then blocks hydrogen storage alloy filling holes used for packing the hydrogen storage alloy in the heat exchanger unit and attaches a detachable cover member to a hydrogen inlet. The manufacturing process subsequently locates the heat exchange unit filled with the hydrogen storage alloy in a cylindrical tank and narrows both ends of the tank to form joint openings. The manufacturing process then heat-treating the tank under water cooling and detaches the cover member. The manufacturing process attaches joint assemblies to the joint openings and forms a reinforcement layer around the outer circumference of the tank to complete the hydrogen storage tank.

Abstract: In a fuel cell system 10, a refrigerant channel 70 that circulates refrigerant is configured to exchange heat between the refrigerant and each of a fuel cell 30, a hydrogen storage tank 20 having a hydrogen storage alloy, and a radiator 50. The hydrogen storage alloy has a higher absorption temperature at which absorption and release become equilibrium under the predetermined hydrogen pressure than the temperature of the fuel cell 30 in a steady-state operation. The refrigerant after cooling the fuel cell carries the heat generated by hydrogen absorption to the hydrogen storage alloy during storing from the tank 20 and facilitates absorption of hydrogen.