A device for producing and/or storing electrical energy (2), characterized in that the device comprises: an anode (4), a cathode (6), a separator (8) allowing for the transfer of at least one compound capable of triggering and/or enabling a production and/or storage of electrical energy (8), arranged between the anode (4) and the cathode (6), and at least one breakable, pierceable, and/or deformable reservoir (10) made of a compound capable of triggering and/or enabling a production and/or a storage of electrical energy, said reservoir (10) having means for bringing said compound and said separator (8) into contact with each other; said means for bringing said compound and said separator (8) into contact with each other being, in particular, means for transferring a liquid.

System for supplying compressed air to a fuel cell of a vehicle, comprising a first compressor having an inlet for receiving air and an outlet for delivering compressed air to the fuel cell; an air storage tank arranged upstream and in series with the first compressor and configured to store compressed air of high pressure; an air selection control assembly comprising a selection valve and a switch actuator configured to operate the selection valve, wherein said selection valve is arranged in between air storage tank and inlet of the first compressor, and further in fluid communication with an inlet conduit for receiving fresh air, said switch actuator being configured to operate the selection valve to selectively control flow of air to the first compressor such that air can be supplied from the air storage tank to the first compressor or from the fresh air inlet conduit to the first compressor.

An airship and its long-term floating capacity maintenance method are disclosed. The airship includes an airship capsule and a pod at bottom. A renewable fuel cell and a water tank communicated with each other are arranged in the pod. The water tank is provided with a water inlet connected with a filling aircraft outside the airship. The airship capsule is provided with a solar cell. The interior of the airship capsule is provided with a hydrogen storage bag. The solar cell is electrically connected with the renewable fuel cell. The renewable fuel cell can use electric energy provided by the solar cell to electrolyze water provided by the filling aircraft into hydrogen and supplement the hydrogen to the hydrogen storage bag. The airship can supplement hydrogen to the airship capsule by electrolyzing water to reduce the phenomenon of insufficient gas in the airship capsule.

An exemplary fuel cell ship is a fuel cell ship for propelling a hull by using electric power supplied from a fuel cell that generates electric power through an electrochemical reaction of fuel, and includes a compartment including an emission source of the fuel and a first detector arranged in the compartment to detect the fuel. If the first detector detects that a concentration of the fuel in the compartment is equal to or greater than a first threshold value, a power supply to a non-explosion-proof device in the compartment is stopped.

A fuel cell ship includes a fuel cell compartment in which a fuel cell is installed, a tank compartment in which a fuel tank is installed, a fuel supply pipe through which fuel is supplied from the fuel tank to the fuel cell, and a control unit. The fuel supply pipe includes at least two shutoff valves. Fuel gas detectors that detect a fuel gas being in a gaseous state of the fuel are each installed in the compartments. If at least one of the fuel gas detectors detects that a concentration of the fuel gas is equal to or greater than a predetermined standard value, the control unit controls to close a shutoff valve in a compartment out of the tank compartment and the fuel cell compartment, where the fuel gas detector having detected the concentration equal to or greater than the standard value is installed.

An exemplary fuel cell ship is a fuel cell ship for propelling a hull by using electric power supplied by a fuel cell that generates electric power through an electrochemical reaction of fuel, and includes at least one compartment including an emission source of the fuel, and a vent pipe through which the fuel in the compartment is released to outside of the hull. A release port of the vent pipe is located at a position higher than a cabin or a bridge provided on the hull.

An exemplary fuel cell ship is a fuel cell ship for propelling a hull by using electric power supplied from a fuel cell that generates electric power through an electrochemical reaction of fuel, and includes a tank compartment installed therein with a fuel tank that stores the fuel. The tank compartment is provided below a deck of the hull and provided separately from other compartments.

An exemplary fuel cell ship is a fuel cell ship for propelling a hull by using electric power supplied from a fuel cell that generates electric power through an electrochemical reaction of fuel, and includes a plurality of compartments including an emission source of the fuel, in which the plurality of compartments include a tank compartment installed therein with a fuel tank that stores the fuel and a fuel cell compartment installed therein with the fuel cell. The tank compartment and the fuel cell compartment are each sealed except for a ventilation port through which the inside of the compartment is ventilated.

A fuel cell ship includes a fuel cell that generates electric power by an electrochemical reaction of fuel, a propulsion device that generates propulsive force on a hull by electric power supplied from the fuel cell, a fuel supply pipe through which the fuel is supplied from a fuel tank housing the fuel to the fuel cell, a duct compartment that houses a part of the fuel supply pipe, a vent pipe that communicates with the duct compartment, and a fuel filling port that serves as an inlet for filling the fuel tank with the fuel. The fuel filling port is provided in the duct compartment.

A venting system includes a housing and an air intake manifold. The housing receives a fuel cell stack, and the air intake manifold extends along the fuel cell stack. The air intake manifold directs a flow of air to the fuel cell stack, and is disposed adjacent to and in contact with the fuel cell stack.