Why are there no flow batteries with symmetric ferrocyanide electrolytes?(chemisting.com)
22 pointsby DamonHD5 hours ago5 comments
  • stuaxoan hour ago
    Cyanide batteries... hmm..
  • ambicapter2 hours ago
    Glad I finally have a name (flow battery) for a concept that I've been wanting to be made for a long time (liquid batteries).
    • somat22 minutes ago
      Flow batteries specifically are liquid, or more accurately fluid, there can be gas flow batteries, where the chemical sub-products are pumped in and out of the cells.

      They tend to be large utility scale things that look like a chemical plant, correction, are a chemical plant with electrical storage as the product.

      Liquid electrolyte batteries have been a thing from when batteries have been invented. But not much work has been done to really scale it up.

    • tveita44 minutes ago
      You might find the home made batteries of this guy interesting as well https://www.youtube.com/watch?v=eq7fR9ISuCw
    • sfn4243 minutes ago
      It's not a new idea, they already exist.

      A huge redox-flow battery is currently under construction in Switzerland https://www.swissinfo.ch/eng/climate-solutions/switzerland-b...

  • mshafir3 hours ago
    Thank you for this, as somebody with almost no background in chemistry, I can now appreciate just a bit more the complexity that goes into battery development. Where does one learn about this?
  • kakacik3 hours ago
    To give the answer its the cyanide part... which I knew already when looking at the title, without having much clue about underlying chemistry.

    Good luck selling batteries full of some variant of cyanide to general public, i can almost imagine it working till people hear that keyword.

    • somat36 minutes ago
      The public is not going to buy a flow battery anyway.

      Or perhaps they will, but only when public is taken in the context as in public utility or public city. But individuals are not going to buy a flow battery, it is a chemical plant.

    • psd1an hour ago
      Somewhat true, but consumers are buying vast quantities of lithium batteries and carrying them in their pockets. Those things are eager to catch fire and emit hydrofluoric acid.

      You can have safe battery chemistry or useful battery chemistry. (Not an expert, open to correction.)

    • greenavocadoan hour ago
      There are plenty of battery customers besides the usual suspects
  • theturtle4 hours ago
    [dead]