Method for controlling a fuel concentration in an anode liquid of a fuel cell, and associated device
OwnerWalter Preidelinventor
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Abstract
In a fuel cell, particularly a direct methanol fuel cell, in which a waste gas develops at the anode and at the cathode, a carbon dioxide concentration is measured in the waste gas. The carbon dioxide concentration is used to determine the loss of fuel through the membrane of the fuel cell. To this end, the corresponding device is provided with a carbon dioxide sensor that is arranged inside the gas stream.
Claims9
In a fuel cell having an anode, a membrane, and a cathode, a method for controlling a fuel concentration in an anode liquid of the fuel cell, which comprises generating a cathode off-gas during an operation of the fuel cell, measuring a carbon dioxide concentration in the cathode off-gas, and deducing from the carbon dioxide concentration a fuel loss taking place via the membrane of the fuel cell.
Dependencies are inferred from the claim text.