A spirally-wound fuel cell assembly is disclosed. The spirally-wound fuel cell assembly includes an enclosure. Multiple cell assemblies are disposed in electrical contact with each other and provided in the enclosure. Each of the cell assemblies has at least one membrane electrode assembly including a negative electrode, a positive electrode and a proton conductive membrane sandwiched between the negative electrode and the positive electrode. An oxidant channel is provided in each of the cell assemblies for receiving an oxidant gas. A fuel gas pathway is defined around the cell assemblies for receiving a fuel gas. A method of fabricating a fuel cell assembly is also disclosed.