Fuel cell block and method for adjusting the removal of...

Details Fuel cell block and method for adjusting the removal of... Fuel cell block and method for adjusting the removal of...

H - Electricity

01

M

H01M 8/04 (2006.01)

Patent

CA 2102353

Abstract of the Disclosure: In a method for adjusting the removal of inert gas from a fuel cell block having a number of fuel cells, a progressive rise in a proportion of inert gas results in a cathode-side or anode-side gas mixture flowing through the fuel cells. An inert-gas-rich gas mixture is drained out as a function of a voltage drop, and the voltage drop is measured between at least two immediately adjacent fuel cells. A fuel cell block includes a number of adjacent fuel cells having electrodes and gas chambers. At least one bipolar plate contacts the electrodes of adjacent fuel cells over a large area. Two spaced-apart contacts are disposed between at least two of the adjacent fuel cells on the at least one bipolar plate. A control element for a gas mixture leaving one of the gas chambers and having a high proportion of inert gas, is adjusted by a voltage drop picked up at the contacts.

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