METHOD AND DEVICE FOR OPERATING A FUEL CELL

摘要

The invention relates to the field of fuel cell technology and a method and a device for gas humidification. The aim of the invention is to reliably humidify the gas in fuel cells in a simple manner. Said aim is achieved by means of a method for operating fuel cells in which the freshly-introduced gas mixes with the residual gas or part of the residual gas within the fuel cell/fuel cell array and the mixture is further processed in the fuel cell/fuel cell array. The aim is further achieved by means of a device for operating fuel cells, comprising a fuel cell with gas channels, each with a common chamber before and/or after the gas channels, whereby said chambers are connected to at least one gas line and a chamber with a variable volume which is connected to one of the common chambers before or after the gas channels by means of one of the gas lines.