A battery water pump control method, a battery controller and a battery. The battery comprises a battery controller and a battery water pump. The method comprises steps that when the battery water pump is in an open-loop control state, the battery controller obtains an open-loop expected control value of the battery water pump according to a first expected water flow of the battery water pump. The battery controller obtains a first control coefficient corresponding to the battery water pump according to the first expected water flow and the mapping relation between the expected water flow and the control coefficient, the battery controller determines an open-loop actual control value of the battery water pump according to the open-loop expected control value of the battery water pump and the first control coefficient, the battery controller controls the water flow of the battery water pump by utilizing the open-loop actual control value. When the battery controller controls the water flow of the battery water pump in the open-loop control mode, control precision can be improved.

A vehicle powered by a fuel cell power plant to conserve water includes a fuel cell to generate electricity and at least one of water or water vapor. The vehicle further includes one or more electric motors operatively coupled to the fuel cell to receive the electricity and propel the vehicle and an auxiliary system operatively coupled to the fuel cell to utilize the at least one of the water or water vapor generated by the fuel cell.

Self-refueling power-generating systems and methods of configuring them are provided, which enable operation in a self-sustained manner, using no external resource for water, oxygen or hydrogen. The systems and methods determine the operation of reversible device(s) in fuel cell or electrolyzer mode according to power requirements and power availability, supply oxygen in a closed circuit, compressing received oxygen in the electrolyzer mode, and supplying water or dilute electrolyte in a closed circuit in conjunction with the closed oxygen supply circuit by separating oxygen produced by the reversible device(s) in the electrolyzer mode from the water or dilute electrolyte received from the reversible device(s). Membrane assemblies may comprise a binder and be hot-pressed to enhance their long-term performance and durability.

Self-refueling power-generating systems and methods of configuring them are provided, which enable operation in a self-sustained manner, using no external resource for water, oxygen or hydrogen. The systems and methods determine the operation of reversible device(s) in fuel cell or electrolyzer mode according to power requirements and power availability, supply oxygen in a closed circuit, compressing received oxygen in the electrolyzer mode, and supplying water or dilute electrolyte in a closed circuit in conjunction with the closed oxygen supply circuit by separating oxygen produced by the reversible device(s) in the electrolyzer mode from the water or dilute electrolyte received from the reversible device(s). Membrane assemblies may comprise a binder and be hot-pressed to enhance their long-term performance and durability.

A modular fuel cell subsystem includes multiple rows of modules, where each row comprises a plurality of fuel cell power modules and a power conditioning module containing a DC to AC inverter electrically connected the power modules. In some embodiments, a single gas and water distribution module is fluidly connected to multiple rows of power modules, and a single mini power distribution module is electrically connected to each of the power conditioning module in each row of modules. In some embodiments, each row of modules further includes a fuel processing module located on an opposite side of the plurality of fuel cell power modules from the power conditioning module. Fuel and water connections may enter each row from the side of the row containing the fuel processing module, and electrical connections may enter each row from the side of the row containing the power conditioning module.

A modular fuel cell subsystem includes multiple rows of modules, where each row comprises a plurality of fuel cell power modules and a power conditioning module containing a DC to AC inverter electrically connected the power modules. In some embodiments, a single gas and water distribution module is fluidly connected to multiple rows of power modules, and a single mini power distribution module is electrically connected to each of the power conditioning module in each row of modules. In some embodiments, each row of modules further includes a fuel processing module located on an opposite side of the plurality of fuel cell power modules from the power conditioning module. Fuel and water connections may enter each row from the side of the row containing the fuel processing module, and electrical connections may enter each row from the side of the row containing the power conditioning module.

An airport according to the present disclosure is an airport where a vehicle is provided. The vehicle includes external supply means for supplying power to outside, and the airport includes power receiving equipment capable of receiving power from the vehicle via the external supply means. The present disclosure provides an airport capable of receiving power from a vehicle provided in the airport in the event of a power failure due to a disaster.

An airport according to the present disclosure is an airport where a vehicle is provided. The vehicle includes external supply means for supplying power to outside, and the airport includes power receiving equipment capable of receiving power from the vehicle via the external supply means. The present disclosure provides an airport capable of receiving power from a vehicle provided in the airport in the event of a power failure due to a disaster.

Disclosed is a unitized regenerative fuel cell system, comprised of a unitized regenerative fuel cell able to operate in a fuel cell mode for electric power generation and in a water electrolysis mode for hydrogen and oxygen production, and a plurality of fire-detecting sensors for detecting fire in each zone of a tunnel, and configured to supply oxygen to zones wherein fire has not occurred if occurrence of fire has been detected in a tunnel, and a method for controlling the same.

Disclosed is a unitized regenerative fuel cell system, comprised of a unitized regenerative fuel cell able to operate in a fuel cell mode for electric power generation and in a water electrolysis mode for hydrogen and oxygen production, and a plurality of fire-detecting sensors for detecting fire in each zone of a tunnel, and configured to supply oxygen to zones wherein fire has not occurred if occurrence of fire has been detected in a tunnel, and a method for controlling the same.