Research Projects

Proton-conducting oxides (protonic ceramics) are emerging as potential next-generation materials for electrochemical energy conversion due to their low cost and high proton conductivity at intermediate temperatures. These materials primarily serve as electrolytes in electrochemical cells. However, constructing SOFC/SOEC devices economically is challenging due to the time-consuming conventional sintering process. The fabrication of a complete single cell using conventional methods takes over 2-3 days, requiring more power consumption, high cost, and time. There is a need for a manufacturing technology that can manufacture SOFC/SOEC devices quickly. This work proposes the establishment of a less popular new sintering process, the flash sintering technique. This technique involves sintering ceramic, metallic, and other conducting and non-conducting materials via a rapid process of passing electric current at an intermediate temperature much below the sintering temperature. This process has shown promising results in sintering single or bilayer systems within 1-2 minutes in one step. Based on these studies and initial studies, the group proposes establishing the flash sintering process in SOFC/SOEC material and devices (bilayer, trilayer, etc.). This energy-efficient and less time-consuming process will replace the conventional whole cell sintering process, making it cost-effective. The complete process can be explored for its applicability in other systems, potentially boosting the electrolyzer industries. However, many challenges must be overcome to make this technology a reality.