摘要:
A fuel cell stack includes a plurality of power generation cells stacked and connected in series and coolant passages configured to circulate coolant. The power generation cells each include a membrane electrode assembly and two separators sandwiching the membrane electrode assembly. The separators are each formed by a metal plate. The coolant passages include through-holes extending through the separators and aligned in a stacking direction of the power generation cells. A method for manufacturing a fuel cell stack includes forming a coating of electrodeposition paint on surfaces of ones of the separators having a high electric potential in the fuel cell stack by operating the fuel cell stack and using the coolant that contains electrodeposition paint particles.
摘要:
A control section (20) of a power supply device calculates a battery voltage on the basis of a capacitor voltage detected by a voltage sensor (17) during precharging that is performed with a main relay section (12) turned off and a precharge relay section (15) turn on and the value of resistance of a resistor (14) of a precharge circuit (13). Then, the control section (20) makes a precharge completion determination on the basis of a changing state quantity of the battery voltage. The control section (20) turns off the precharge relay section (15) in accordance with the precharge completion determination.
摘要:
A gas channel forming plate includes protrusions, which extend parallel with each other, gas channels that are respectively located between each adjacent pair of the protrusions, and water channels, which are respectively formed on the back surface of each protrusion. Each protrusion includes first communication portions and second communication portions. Each first communication portion includes a first opening. Each second communication portion includes a second opening. The second communication portions of each protrusion constitute an expanding region, in which the opening area of the second opening in each second communication portion is greater than the opening area of the first opening of each first communication portion, to limit introduction of water to the water channel on the back side of the protrusion using capillary action by the second communication portions.
摘要:
A vehicle interior illumination device (10) includes an illumination lamp (25, 27, 29, 31) that is provided in a vehicle interior and is configured to be turned on to illuminate the vehicle interior, a detector that detects a condition to have the illumination lamp to be turned on, and a controller (15) that controls a lighting of the illumination lamp (25, 27, 29, 31). When the condition is detected by the detector, the controller (15) lights the illumination lamp (25, 27, 29, 31) with a first light amount and when the condition is not detected by the detector, the controller (15) lights the illumination lamp (25, 27, 29, 31) with a second light amount smaller than the first light amount.