METHOD FOR OPERATING A FUEL CELL AND A FUEL CELL ARRANGEMENT

摘要

The invention relates to a fuel cell(2) or a fuel cell arrangement (1) comprising a plurality of fuel cells (2), and enables reliable monitoring of the operatability of each/said fuel cell (2) using particularly simple means. According to the invention, a proportion (12) of the output current (1) provided by each/said fuel cell (2) is guided via an optically active element (12). The degree of operatability of the fuel cell (2) can be deduced from an output signal (A) produced by the optically active element (12).