Our new work on a state-of-the-art SOFC has been published in a paper “Design of next-generation ceramic fuel cells and real-time characterization with synchrotron X-ray diffraction computed tomography“ in Nature Communications.
Ceramic fuel cells offer a clean and efficient means of producing electricity through a variety of fuels. However, miniaturization of cell dimensions for portable device application remains a challenge, as volumetric power densities generated by readily-available planar/tubular ceramic cells are limited. Here, we demonstrate a concept of ‘micro-monolithic’ ceramic cell design. The mechanical robustness and structural integrity of this design is thoroughly investigated with real-time, synchrotron X-ray diffraction computed tomography, suggesting excellent thermal cycling stability. The successful miniaturization results in an exceptional power density of 1.27 W cm−2 at 800 °C, which is among the highest reported. This holistic design incorporates both mechanical integrity and electrochemical performance, leading to mechanical property enhancement and representing an important step toward commercial development of portable ceramic devices with high volumetric power (>10 W cm−3), fast thermal cycling and marked mechanical reliability.
The synchrotron experiments were conceived, designed and performed by Dr Antony Vamvakeros and Dorota Matras in collaboration with a team from the Electrochemical Innovation Lab (EIL) from UCL Chemical Engineering using ESRF’s ID15A beamline using a state-of-the-art SOFC designed by Imperial College.
Read the full article at https://www.nature.com/articles/s41467-019-09427-z