On: A novel solid, rechargeable air battery

It's wrong anyway. Even back in 2008, it was more than 50 watt hours per liter.

The graph is taken straight from the DOE website, here:

https://www.energy.gov/eere/vehicles/articles/fotw-1234-apri....

Without attribution of course. They just re cited the paper the DOE cites.

The paper has no such graph:

https://www.osti.gov/pages/servlets/purl/1842609

The graph is clearly wrong.