Apparatus for measuring oxygen permeability of ion exchange membranes and method for measuring oxygen permeability of ion exchange membranes using the same

摘要

The apparatus for measuring oxygen permeability of the membrane according to the present invention is characterized in that the same membrane as the fuel cell is provided so that the supplied oxygen permeates the membrane and then the current generated due to the reduction of oxygen is measured to measure 1) Speed, 2) the time-dependent flow rate of oxygen permeated through the membrane, 3) the maximum permeate flow rate of oxygen permeated through the membrane, 4) the permeate flow rate with temperature, and 5) And the oxygen permeability of the membrane can be measured by deriving four factors including the diffusion coefficient of oxygen, the activation energy, the solubility of oxygen, and the Henry's constant. Therefore, by using the oxygen permeability measuring apparatus according to the present invention, it is possible to effectively measure the oxygen permeability of the gas diffusion layer, which is one of the core components of the fuel cell, thereby contributing to the improvement of the technology of the fuel cell field.