• BombOmOm@lemmy.world
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    1 year ago

    What is the energy density (by volume) of this? It sounds like a rebrand of a hydrogen fuel cell, which has some limited applications, but has been supplanted by lithium-ion due to hydrogen’s low energy density and the fuel cell/electrolysis combo having poor energy efficiency.

    Edit: specified density by volume, as density by weight was never the issue

    • Bernie Ecclestoned@sh.itjust.worksOP
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      1 year ago

      The new proton battery has an energy density of 245 watt hours per kilogram, nearly three times the energy density of the team’s 2018 prototype

      • Pretzilla@lemmy.world
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        1 year ago

        Irrelevant to this discussion, though.

        How does it compare to competing technologies?

        And more pertinent, how small does it get? Fit one in my phone? Motorcycle? Car? Boat?