The partial substitution of Ca2+ for Ba2+, resulting in (CaxBa1‒x)(Ce0.9Y0.1O3), led to an improvement in electrical conductivity compared to the starting composition, BaCe0.9Y0.1O3. Electrolytesupported button solid oxide fuel cells (E-SOFCs) involving modified calcium barium cerate with the formula (CaxBa1‒x)(Ce0.9Y0.1O3), where 0.02<x<0.1, also exhibited superior power output Pmax within a temperature range of 500‒800ºC compared to E-SOFCs incorporating BaCe0.9Y0.1O3 as an electrolyte. In terms of planar design, the main advantage of anode-supported SOFCs (A-SOFCs) is the substantially lower ohmic resistance of the electrolyte and consequent potentially lower operating temperatures. In an A-SOFC, a relatively thick porous anode is used to provide structural support for the assembly. The aim of this study is to determine the physicochemical properties of NiOCa0.05Ba0.95Ce0.9Y0.1O3 cermet designed for an A-SOFC involving Ca0.05Ba0.95Ce0.9Y0.1O3 (5CBCY) as an electrolyte. NiO-Ca0.05Ba0.95Ce0.9Y0.1O3 was fabricated using the tape-casting method. A mixture of 38 wt.% of 5CBCY, 57 wt.% of NiO, and 5 wt.% of graphite as a pore former was milled in a polythene ball mill with an organic medium based on PVB (polyvinyl butyral) at a mass ratio of powder to organics of 54:46. Green tape was cast at the rate of 2 cm/s‒1 on a PTFE surface. Subsequently the tape was dried in an air-conditioned room for 24 h. At the conclusion of the drying process, the thickness of the tape was 0.7 mm. The thermal analysis method (DTA-DSC/TG) was used to study the thermal effect occurring during the heating of NiO-5CBCY samples at 25‒1000ºC in air. Dilatometry was used to study variation in the dimensions of samples heated within a temperature range of 25‒1400ºC. In the course of X-ray diffraction analysis, NiO and 5CBCY phases were detected in sintered samples. SEM microscopy was used to evaluate variations in microstructure and porosity during the heating of samples in an argon-hydrogen or pure hydrogen gas atmosphere. Impedance spectroscopy was used to determine the electrical conductivity of Ni-5CBCY anode supports. To create an optimised Ni-5CBCY anode support, a thin layer 5CBCY gas-tight electrolyte was placed on the anode surface. LSCF|C5BCY|Ni-5CBCY button solid oxide fuel cells were tested within a temperature range of 400‒700ºC. The preliminary results obtained via the analytical method for the obtained Ni-5CBCY cermet, along with electrochemical tests, indicated that the elaborated Ni-5CBCY anode material appeared promising for use in ceramic proton-conducting fuel cells operating in an intermediate temperature range.