1. The Zinc-Polyiodide Redox Flow Battery

    The Zinc-Polyiodide Redox Flow Battery

    A new type of redox flow battery has an energy density approaching that of lithium-ion batteries used in portable electronic devices and some small electric cars. A new zinc-polyiodide redox flow battery developed by Pacific Northwest National Laboratory (PNNL) and described in Nature Communications uses an electrolyte with more than double the energy density of the next best design; opening up possibilities of using flow batteries in applications such as vehicles in the future.

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