A fuel cell system configured to enhance the life of a fuel cell is provided. The fuel cell system a fuel cell, an oxidant gas supplier configured to supply oxygen-containing oxidant gas to a cathode of the fuel cell, a fuel gas supplier configured to supply hydrogen-containing fuel gas to an anode of the fuel cell, an oxygen partial pressure estimator configured to estimate an oxygen partial pressure of the cathode of the fuel cell, a hydrogen partial pressure estimator configured to estimate a hydrogen partial pressure of the anode of the fuel cell, and a controller, wherein the controller calculates a target hydrogen partial pressure by a given equation (1), and wherein the controller controls the hydrogen partial pressure of the anode to the target hydrogen partial pressure.

Disclosed are a polymer electrolyte membrane for a fuel cell, a membrane-electrode assembly including the same, a fuel cell and a method of manufacturing the polymer electrolyte membrane for a fuel cell. Particularly, the polymer electrolyte membrane for a fuel cell may include ionomer layers including a voltage reversal tolerance-increasing additive including a water electrolysis catalyst and an electrical conductor and provided on a porous reinforced film.

A control device for a fuel cell vehicle includes a power limiter limiting power of a fuel cell when a temperature correlation value correlated to a temperature of the fuel cell indicates that the temperature is equal to or higher than a temperature threshold, a calculation unit calculating a weight of a towed vehicle, a gradient acquirer acquiring upward gradients at respective points on a planned traveling route, a predictor predicting whether the power of the fuel cell is limited when the fuel cell vehicle is traveling along the planned traveling route in a towing travel state, and a controller issuing, when the predictor predicts that the power of the fuel cell is limited, an alert that a vehicle speed of the fuel cell vehicle is expected to decrease when the fuel cell vehicle is traveling along the planned traveling route in the towing travel state.

A fuel cell system capable of improving the chemical durability of a membrane electrode assembly by compensating for the amount of an antioxidant lost within the electrolyte membrane or electrode of the fuel cell stack in such a manner that the antioxidant is provided from an antioxidant supply device, provided in a fuel processing system and/or an air processing system, to a fuel cell stack, in preparation for a case where the antioxidant within the electrolyte membrane or electrode is lost due to the dissolution or migration characteristic of the antioxidant.

A cold start device for an exothermic hydrogen consumer such as a fuel cell, as well as a method for operating an exothermic hydrogen consumer with a metal hydride storage system. An exothermic hydrogen consumer such as a fuel cell with an efficient cold start device which can be brought into operation rapidly and. does not require a pressure tank is provided. The cold start device is available for an unlimited number of start-up procedures. At least one starter tank is filled with a metal hydride which has an equilibrium pressure for desorption of at least 100 kPa at a temperature of −40° C., as well as at least one operating tank which is filled with at least one metal hydride, which has an equilibrium pressure of <100 kPa at temperatures of <0° C., and wherein the starter tank is incorporated into the operating tank.

The present invention provides a power supply method and system for a hydrogen fuel cell stack, and a hydrogen powered motorcycle and a driving method and system thereof, the power supply method includes: a control chip detecting the operating states of the hydrogen fuel cell stack and the lithium battery pack; when the hydrogen fuel cell stack and the lithium battery pack are free of faults, obtaining the output voltage of the lithium battery pack; when the output voltage is lower than the charge-on threshold, the hydrogen fuel cell stack powering the lithium battery pack; when the output voltage is higher than the charge-stop threshold, disconnecting the circuit of the hydrogen fuel cell stack powering the lithium battery pack, when the output voltage is more than or equal to the charge-on threshold and less than or equal to the charge-stop threshold, the circuit of the hydrogen fuel cell stack remaining to power the lithium battery pack; and when the output voltage is higher than the charge-stop threshold, disconnecting the circuit oi the hydrogen fuel cell stack powering the lithium battery pack. The aforementioned technical solution uses hydrogen energy as the electrical energy powering the motorcycle as much as possible under the protection of the hydrogen fuel cell stack.

A fuel cell stack has a plurality of fuel cells arranged in a row, each of them comprising a membrane separating the electrodes, with ports for the respective supply and drainage of a fuel and an oxidizer and with a tensioning device for pressing the fuel cells together, wherein the tensioning device is formed by a band and spring system having an integrated force transducer, the signal of which can be relayed to a controller for determining the moisture content based on the moisture-dependent swelling behavior of the membrane of each fuel cell. A fuel cell device with such a fuel cell stack as well as a motor vehicle having such a fuel cell device are also provided.

Me-N—C catalysts, wherein Me can include a transition metal, Mn, Fe, Co, or a combination of metals with Me-INU moieties located at the exterior surface of the Me-N—C catalysts are produced by a chemical vapor deposition synthesis. The synthesis methods can utilize non-solid-contact pyrolysis wherein a metal salt can be vaporized. Gaseous metal from the vaporized metal salt can displace a metal M from the N—C zeolitic imidazolate framework. The non-solid-contact pyrolysis does not mix solid iron precursors (e.g., Me=Mn, Fe, or Co) with the solid N—C zeolitic imidazolate framework precursors during or before the synthesis, which improves the process compared to conventional methods.

An insulation fault response method for a fuel cell vehicle, comprising: when a vehicle starts, detecting whether a fuel cell is in a startup state or not; when the fuel cell is not in the startup state, reading a first insulation resistance detected by a fuel cell control unit and a second insulation resistance detected by a cell management system; when the first insulation resistance indicates that the vehicle is in an insulation fault, executing a first control policy; and when the second insulation resistance indicates that the vehicle in an insulation fault, executing a second control policy, wherein the first control policy is different from the second control policy, and wherein when the first insulation resistance is less than a first threshold and/or the second insulation resistance is less than a second threshold, the vehicle is in an insulation fault.

In order to prevent injury from hot exhaust gas, water is condensed by a metal net in the exhaust pipe.