Article in Nature Materials: Sodium-air battery

[Munchausen]

Someone out there having access to the full article willing to share the main facts of this article with us?

http://www.nature.com/nmat/journal/vaop ... t3486.html

Here we report on a Na–O2 cell reversibly discharging/charging at very low overpotentials (< 200 mV) and current densities as high as 0.2 mA cm−2 using a pure carbon cathode without an added catalyst. Crystalline sodium superoxide (NaO2) forms in a one-electron transfer step as a solid discharge product. This work demonstrates that substitution of lithium by sodium may offer an unexpected route towards rechargeable metal–air batteries.

Topics of interest:

- cell layout (materials, construction)

- fundamental reactions

- performance (energy density, cycle life degradation and so on)

[Blankbeard]

Sodium is more reactive in water than lithium and has significant reactivity in air. I wonder if this can be made vehicle safe?