[oldjavacoder]

https://en.wikipedia.org/wiki/Aluminium%E2%80%93air_battery

"However, an electric vehicle with aluminium batteries has the potential for up to eight times the range of a lithium-ion battery with a significantly lower total weight."

It just needs silver for a catalyst. :-(

[gizmondo]

Being non-rechargeable sounds like a bigger issue.

[oldjavacoder]

True but there are some recent developments in the area of making them rechargeable.