Testing system of selective dual mode type for fuel cell stacks or vapor/carbon dioxide co-electrolysis stacks

A testing system of selective dual mode type for fuel cell stacks or vapor/carbon dioxide co-electrolysis stacks, comprising:

• at least one testing structure comprising a first electrode, a second electrode, a first gas path adjacent to the first electrode, a second gas path adjacent to the second electrode, and an ion conducting layer disposed between the first gas path and the second gas path;
• a reactant gas supply device providing a plurality of reactant gases selectively entering the first gas path and the second gas path;
• a vapor supply device providing an vapor selectively entering the first gas path or the second gas path;
• a power supply device connected to the first electrode and the second electrode;
• a power load device connected to the first electrode and the second electrode;
• and
• a control-analyzing device electrically connected to the power supply device and the power load device;
• wherein when the at least one testing structure is operated as a fuel cell stack, the reactant gases enter the first gas path and the second gas path, and a current is generated between the first electrode and the second electrode and flows through the power load device, whereby the control-analyzing device obtains a plurality of first electrical property data of the power load device;
• wherein when the at least one testing structure is operated as a vapor/CO2 co-electrolysis stack, the power supply device provides a potential difference between the first electrode and the second electrode, the vapor enters the first gas path, whereby a plurality of electrolysis gases are generated at the first electrode and the second electrode and discharged from the testing structure, and the control-analyzing device obtains a plurality of second electrical property data of the power load device.