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Battery Advances - Iron based FLow Batteries

Discussion in 'Too Hot for Swamp Gas' started by G8trGr8t, Apr 25, 2024.

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  1. May 1, 2024 #21
    G8trGr8t

    G8trGr8t Premium Member

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    the speed of innovation in batteries is hard to keep up with. Here is a large scale battery that uses iron as the primary ingredient to cut costs compared to lithium and to cut the risk of fire

    Researchers repurpose commonplace chemical with incredible properties in new battery design: 'Exhibited remarkable cycling stability' (msn.com)

    Now, researchers from the Department of Energy's Pacific Northwest National Laboratory have addressed this problem by designing an all-liquid iron-based flow battery that can be easily scaled since iron is one of Earth's most abundant minerals.

    Plus, as Power magazine reported, iron-flow batteries offer several advantages over lithium-ion storage systems. They have a longer duration and an unlimited cycle life, are non-flammable, and have lower operating expenses.

    Researchers reported in Nature Communications that the "iron-based battery exhibited remarkable cycling stability over one thousand consecutive charging cycles while maintaining 98.7 percent of its maximum capacity."
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    The larger the electrolyte supply tank, the more energy the flow battery can store, the scientists said. Since the batteries can be produced at any scale up to the size of a city block, they can serve as a reliable, safe backup energy storage system for the electric grid.
     
  2. Dec 29, 2024 #22
    chemgator

    chemgator GC Hall of Fame

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    A new improvement for lithium-ion batteries: graphene coating on the cathode. In a typical battery, transition metals (usually cobalt) migrate from the cathode to the anode over time, reducing the life of the battery, so they realized that the cathode needs a coating like graphene. Most cobalt is mined in Democratic Republic of the Congo by children, so it is not sustainable to continue mining it at the current rates. The scientists first figured out how to manufacture graphene (one atom thick) reliably. Then they had to figure out how to apply it. Using a standard process for applying the graphene would destroy the cathode, so they figured out another method. They use a similar dry coating technique to what pharmaceutical companies use on pills. The improvements doubled the battery cycle life, and allowed the battery to operate in a wider range of temperatures.

    Scientists make critical discovery that could completely transform EV battery lifespans: 'It opens up a lot of possibilities'

     
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  3. Dec 29, 2024 #23
    G8trGr8t

    G8trGr8t Premium Member

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    The rate of lab advances on batteries is astonishing. It would concern me if I was spending $500m to build a battery plant that my tech might be obsolete by the time the plant opens....
    Toyota seems to be closest to mass producing legit solid state battery
     
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