Iron air battery -- too heavy for RVs, but interesting

profdant139 wrote:
This could be a game changer for energy storage, and it sounds like it's not just pie in the sky. I think it's too heavy for RVs, but still interesting:


Wall Street Journal article

This is very interesting. I don't think it will be too heavy for RV's if you scale it down. Their web site says it is for energy storage and each battery is the size of a washing machine. However if you break that down there are 5 large cells that make up the main storage battery each equivalent to a Li battery in an electric car. Inside these cells are the equivalent of 10-20 individual cells. I think they can string 5 cells or so together to make a 12v battery for an RV. When you think about how it works converting iron to rust then back to iron during charging and discharging, it would not only be cheaper than Li ion but easier to produce, iron is much more abundant the Li and easier to recycle.