Description: NRL has developed scalable, solution-based benchtop methods to generate conformal ultrathin (-2 addressable within tens of seconds, a time scale of relevance for hybrid electric vehicles. Pairing MnOx-carbon nanofoam with FeOx-carbon nanofoam yields an energy-storage device with an extended operating voltage in mild aqueous electrolytes (~2V) that provides technologically relevant energy and power density while also being low cost, safe to operate, and environmentally benign.

Advantages/Features Include:

  • Device-ready electrode structures that exhibit up to tenfold increased electrochemical charge storage.
  • Combination of high-performance electrode materials and aqueous electrolytes results in energy-storage devices that are low cost, safe to operate, environmentally benign, and have relevant energy and power density.

Applications Include:

  • Hybrid-electric systems
  • Bridge/back-up power
  • Energy recovery


  • "Incorporation of Homogeneous, Nanoscale MNO2 Within Ultraporous Carbon Structures Via Self-Limiting Electroless Deposition: Implications for Electrochemical Capacitors," Nano Lett., 7 (2007) 281-286.
  • "Electroless Deposition of Conformal Nanoscale Iron Oxide on Carbon Nanoarchitectures for Electrochemical Charge Storage,"
  • ACS Nano
  • , 4 (2010) 4505-4514.

Click here for a more detailed PDF version of this technology.

Back to Energy
Technology Tags: