I’m excited about salt batteries taking up the slack on a lot of this infrastructure in the future.
They are a lot more expensive than expected at the moment, once they start selling at the 30$/KWh they were proposed at they will be fantastic but if they stay at their current price LFP is going to be a lot cheaper.
Iron-air rust batteries are also pretty intersting. Just iron, air and water to store power by exploiting how rust forms.
anything that’s outside of rare metals batt technology either lithium or sodium based right now is basically off of the table, except for silver zinc iirc, and nickel hydrogen. Those are like the two options that are probably viable, everything else simply doesn’t exist yet.
I’d just like to note that a lot of storage technologies that are currently in the pilot project stage are based on using components with existing supply lines to minimize the time and effort needed to scale up production.
