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profdant139's avatar
profdant139
Explorer II
Jul 23, 2021

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

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
  • I wonder how similar these batteries are to the Iron-Nickel ones from early last century?
  • Yosemite Sam1 wrote:
    Yup, if it's too heavy for electric cars, then it will also be too heavy for RVs.

    There is a frenzy out there to come up with more densely packed battery. Weight and size is always a major consideration.


    for many stationary applications it isn't weight or size as much as energy density/volume, cycle life and cost.

    Energy density of iron batteries for volume is high, and material and mfg cost is low so for applications like a "power wall" or large energy storage applications they have significant advantages over technologies such as lithium.
  • Yup, if it's too heavy for electric cars, then it will also be too heavy for RVs.

    There is a frenzy out there to come up with more densely packed battery. Weight and size is always a major consideration.

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