Dual‐Function Air Cathode for Metal–Air Batteries with Pulse‐Power Capability

Air-breathing electrodes comprising carbon nanofoam papers coated with nanoscale manganese oxide (MnOx) exhibit two distinct functionalities – electrocatalysed oxygen reduction plus faradaic pseudocapacitance. Pseudocapacitance provides seconds-long discharge pulses at current densities that exceed oxygen reduction alone, even providing pulse power for one anaerobic cycle. The MnOx spontaneously recharges between pulses via reaction with oxygen while operating as an air cathode. 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.