High‐Performance 3D Printed Microtubular Solid Oxide Fuel Cells

Through the use of microtubular solid oxide fuel cells, produced by a 3D additive manufacturing process, small-sized portable power systems with high power outputs are possible. These cells demonstrate power densities of 0.989 W cm−2 at 800 °C and survive more than 1055 rapid thermal cycles withstanding temperature changes greater than 350 °C min−1. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.