[benfarahmand]

The linked paper summary says "...we describe a bio-photovoltaic energy harvester system using photosynthetic microorganisms on an aluminium anode..."

How do they prevent the aluminum from oxidizing? Oxidized aluminum is an insulator, which should be a problem for a long lived battery?

I don't have access to the whole paper since it's behind a paywall.

[VygmraMGVl]

Aluminum forms a passivating oxide layer, but generally this layer is conductive enough that you can still use aluminum as an electrode, except in conditions with extreme pH.

[ncmncm]

sci-hub comes up empty.