A new battery tech that is safe, efficient, and non-toxic
interestingengineering.com
A team of researchers from Australia and China have found a way to make batteries safer and more efficient by using water and organic molecules.
  • sugar_in_your_tea@sh.itjust.works
    8·
    10 months ago

    I didn’t see it in the article, but do they have a comparison in terms of energy density vs alternatives? What niche are they trying to fill?

    Environmentally friendly batteries are exciting, just trying to gauge how excited I should be.

    • chiisana@lemmy.chiisana.net
      21·
      10 months ago

      I wonder how big it is to physically deliver (only) 1.25 V at a capacity of 110 mAh. This won’t be powering much of anything in the near term. Also I’d be curious, as they claim it being water and organic matter based, if we could just “drain” the existing battery quickly and load in new pre-charged fluid to quickly recharge (I.e. recharge an EV as quickly as a gasoline based vehicle).

      • p1mrx@sh.itjust.works
        7·
        10 months ago

        The battery can deliver a stable voltage output of 1.25 V and a capacity of 110 mAh/g

        110 mAh/g * 1.25 V * 1000 g/kg = 137 Wh/kg.

        Lithium ion is around 250 Wh/kg, so this battery is around twice as heavy.

      • Spzi@lemm.eeEnglish
        2·
        10 months ago

        if we could just “drain” the existing battery quickly and load in new pre-charged fluid

        That would be huge!

        For this, of course, it matters a lot how energy dense the battery is. Also for the environmental impact. If I have to exchange three gigatons of liquid for my trip to the grocery store, a rolling coal truck might have the smaller footprint.