Manufacturing method of BSCF cathode for low-temperature solid oxide fuel cell-A review

Abstract

The fuel cell is a device used to convert chemical energy to electrical energy through the electrochemical process. It does not involve any intermediate step of direct combustion and gives higher conversion efficiency when compared to a conventional system. Solid oxide fuel cell is a type of fuel cell which involves oxide-ion conducting electrolytes. It has several advantages in higher efficiency, lower sensitivity to fuel impurities, and inexpensive materials. Nowadays, Low-Temperature Solid Oxide (LT-SOFC) Fuel Cell is attracted due to its lower operating temperature range of 500–800 °C. The various advantages of LT-SOFC are reducing the degradation of components involved, cell durability improvement, and reducing the cost involved. In solid oxide fuel cells, cathode plays an essential role in the electrochemical reduction. Common cathode materials are yttria-stabilized zirconia, scandia-stabilized zirconia, Samaria-doped ceria (SDC), gadolinia-doped ceria (GDC), and lanthanum strontium gallium magnesium oxide (LSGM). These cathodes have a high value of ionic conductivity at low temperatures. Recently, BSCF type cathode is attempted by researchers due to its attractive performance in LT-SOFC. The main objective of this article reviews the manufacturing method of BSCF cathode and its fabrication route on LTSO fuel cells. The result of this review article is observed to acquire knowledge of various manufacturing method of BSCF cathode in LT-SOFC fuel cell.