DC-SOFC single cell performance testing device

The invention belongs to the field of fuel cell testing, and particularly relates to a DC-SOFC single cell performance testing device which comprises a device body, a program control high-temperature furnace is arranged outside the device body, and a high-temperature-resistant ceramic tube used for containing solid fuel is arranged in the center of the device body. The top of the high-temperature-resistant ceramic tube penetrates through the top of the device body, a single battery is arranged at the bottom of the high-temperature-resistant ceramic tube, a positive electrode and a negative electrode of the single battery are connected with wires, and a cathode air guide tube is arranged under the single battery and penetrates through the top of the device body. The cathode air conduit is arranged, so that the cathode air conduit and the solid fuel in the high-temperature-resistant ceramic tube are subjected to an oxidation-reduction reaction under the heating high temperature of the program control high-tempe