Fuel cell stack has collection chamber for water formed during electrochemical reaction in lower anode chamber; collected water has evaporation surface, is used to moisten fuel fed to stack

摘要

The fuel cell stack has several connected fuel cells with anodes, cathodes and intermediate membranes between two bipolar plates (10). A collection chamber for liquid water formed during the electrochemical reaction is arranged in a lower anode chamber. The collected water has an evaporation surface and is used to moisten the fuel fed to the fuel stack. Independent claims are also included for the following: a method of operating an inventive device and a fuel cell system with an inventive device.