Get access

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

Authors

  • Jeffrey W. Long,

    Corresponding author
    1. Code 6170, Surface Chemistry Branch, U. S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC, 20375, USA
    • Code 6170, Surface Chemistry Branch, U. S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC, 20375, USA.
    Search for more papers by this author
  • Christopher N. Chervin,

    1. Code 6170, Surface Chemistry Branch, U. S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC, 20375, USA
    Search for more papers by this author
  • Nathan W. Kucko,

    1. Code 6170, Surface Chemistry Branch, U. S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC, 20375, USA
    Search for more papers by this author
  • Eric S. Nelson,

    1. Code 6170, Surface Chemistry Branch, U. S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC, 20375, USA
    Search for more papers by this author
  • Debra R. Rolison

    Corresponding author
    1. Code 6170, Surface Chemistry Branch, U. S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC, 20375, USA
    • Code 6170, Surface Chemistry Branch, U. S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC, 20375, USA.
    Search for more papers by this author

Abstract

original image

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.

Get access to the full text of this article

Ancillary