Solid oxide fuel cells (SOFCs) feature the highest energy conversion effici
ency of any type of fuel cell yet developed, This article describes SOFC pr
oduction by means of plasma spraying and presents the resulting SOFC perfor
mance. The application of plasma spraying to tubular SOFC production has re
alized good performance on the order of 40 W or greater in terms of electri
city generation per cell stack under standard conditions of 200 mA/cm(2).