In this new issue of Joule, Xianfeng Li and colleagues demonstrated the pilot scale roll-to-roll synthesis of sulfonated poly(ether ether ketone) (SPEEK) membrane and the scaling up of zinc flow batteries (ZFBs) stack 300–4000 W with membrane area up to 3 m². Compared to expensive Nafion membranes ($500–1500 m⁻²), cost analysis demonstrated the significant cost reduction of SPEEK membranes to $12 m⁻² and subsequently enormous cost reduction of flow battery stacks. This cost reduction will advance the manufacturing of flow battery systems for large-scale energy storage plants.¹

中文翻译：

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SPEEK 扩大规模

在新一期的Joule中，Xianfeng Li 及其同事展示了磺化聚醚醚酮 (SPEEK) 膜的中试规模卷对卷合成以及 300-4000 W 的锌液流电池 (ZFB) 堆的放大膜面积可达 3 m ²。与昂贵的 Nafion 膜（500-1500 m ^-2）相比，成本分析表明 SPEEK 膜的成本显着降低至 12 m ^-2，随后液流电池组的成本也大幅降低。这种成本降低将推动用于大型储能工厂的液流电池系统的制造。¹