Abstract
The paper presents testing data of single Polymer Electrolyte Membrane (PEM) fuel cell for comparing the characteristics of two different testing hardware, namely the recently developed single cell reference testing hardware and the commonly used by the research community single-serpentine testing hardware. Data are presented in form of polarisation curves, temperature, pressure and voltage distributions, as well as electrochemical impedance spectroscopy measurements for a range of current densities. The electrochemical impedance spectroscopy data are also validated using the Kramers-Kronig transformation and presented as Nyquist and Bode plots. The raw data of all mentioned results are also provided in online repository. The presented experimental data are discussed and evaluated in Assessment of the electrochemical characteristic of a Polymer Electrolyte Membrane in a "reference" single fuel cell testing hardware[1].