A system for humidification of a fuel cell electric vehicle includes a fuel cell stack for producing electrical energy through an electrochemical reaction of hydrogen and oxygen, a water supply tank for storing water generated during power generation in the fuel cell stack, a first duct for supplying air exhausted from a heating, ventilation, and air conditioning (HVAC) apparatus to a vehicle glass, a second duct for supplying air exhausted from the HVAC apparatus into the vehicle interior, a humidification apparatus for humidifying air supplied through the second duct using water supplied from the water supply tank, and a controller that supplies air to the vehicle glass through the first duct to perform anti-fogging control of the vehicle glass when adjusting an inside humidity of the vehicle using the humidification apparatus.

A fuel cell cooling system mounted on a vehicle includes a flow path for a coolant; a cooling unit that cools the coolant in a cooling unit flow path; a fuel cell to be cooled through heat exchange with the coolant in a fuel cell flow path; a heat generating body to be cooled through heat exchange with the coolant in a heat generating body flow path; first and second pumps that pump the coolant in the fuel cell and heat generating body flow paths, respectively; and a control circuit. When the vehicle is started, the control circuit performs a first process of actuating the first pump with the second pump stopped, and a second process of actuating the first and second pumps when the temperature of the coolant in the fuel cell or cooling unit flow path exceeds a first reference value during the first process.

A gas liquid separator of a fuel cell system includes a first channel forming section forming a first channel for allowing an oxygen-containing exhaust gas to flow in a horizontal direction, and a second channel forming section forming a second channel connected to the first channel. The first channel forming section is provided with an inlet for guiding the oxygen-containing exhaust gas into the first channel. The second channel forming section is provided with an outlet for discharging the oxygen-containing exhaust gas flowing through the second channel. The second channel includes a bent channel for guiding upward the oxygen-containing exhaust gas guided from the first channel.

Embodiments of the present disclosure relate generally to the use of the fuel cell systems on board aircraft and other passenger transportation vehicles and to methods of using heat, air, and water generated by such fuel cell systems. The heat may be used to address condensation within the aircraft. The heat may be used to help evaporate excess water that would otherwise condense in the aircraft skin. The excess water collected may be used to create humidification for cabin air. In other examples, the heat, warmed air, or warmed water may be delivered to other locations or heating systems for beneficial use.

In order to improve estimation accuracy of a purging amount, a fuel cell system comprises a supply valve that controls a supply of an anode gas into an anode system, a purge valve that discharges an off-gas from the anode system, a pressure detecting unit configured to estimate or measures a pressure inside the anode system, and a purging amount estimating unit configured to estimate a purging amount of the off-gas discharged from the anode system through the purge valve based on a pressure change inside the anode system during a purge valve close duration in a supply valve open state and a pressure change inside the anode system during a purge valve close duration in a supply valve close state.

The embodiments described and claimed herein are apparatus, systems, and methods for charging an electric vehicle at a stationary service station. In one embodiment, the service station includes a power generation component including at least one fuel cell, a fuel supply component for supplying fuel to the power generation component, a charging component including at least one customer charging station, and a control component for controlling and monitoring the other components and for providing accounting and billing functions.

A system for controlling gas flow in a fuel cell circuit includes a fuel cell stack, a pressure sensor, and a valve to adjust a flow of gas through the fuel cell circuit. The system further includes an ECU designed to estimate pressure values of the gas at multiple locations in the fuel cell circuit based on the detected pressure of the gas and based on flow resistance values (including at the valve), the estimated pressure values including an estimated sensor pressure value at a location of the pressure sensor. The ECU is further designed to determine a pressure deviation between the detected pressure and the estimated sensor pressure value. The ECU is further designed to adjust the flow resistance value of the valve to determine a final flow resistance value of the valve that causes the pressure deviation to reach or drop below a threshold deviation amount.

This anode catalyst layer for a fuel cell contains electrode catalyst particles, a carbon carrier on which the electrode catalyst particles are loaded, water electrolysis catalyst particles, a proton-conducting binder, and graphitized carbon. The graphitized carbon has a bulk density of 0.50/cm.sup.3 or less.

The invention relates to a fuel cell stack having a variety of individual cells stacked up to form a stack, having at least one humidifier section integrated into the stack and arranged at one end of the individual cells as an electrochemical section. The invention is characterized in that a heat exchanger section is arranged on the side of the at least one humidifier section facing away from the electrochemical section, wherein flow plates for distributing fluids in at least three sections of the stack have the same external geometry.

A data communication device includes a battery having a first flowable electrolyte. In some embodiments, the battery is a redox flow battery (RFB) or a hybrid RFB. A first channel contains the first flowable electrolyte of the battery (i.e., contains at least a portion of the first flowable electrolyte). The first channel may include a tube and/or a reservoir. At least a portion of the first channel may be flexible and/or stretchable. The first channel has a first electrode configured to impart and/or receive a first electrical signal in the first flowable electrolyte. The first electrical signal may be a digital signal. The first electrical signal may be an encoded signal. The device may include a transceiver in electronic communication with the first electrode.