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首页> 外文期刊>RSC Advances >A low-cost average valence detector for mixed electrolytes in vanadium flow batteries
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A low-cost average valence detector for mixed electrolytes in vanadium flow batteries

机译：用于钒液流电池中混合电解质的低成本平均价检测器

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摘要

The decay in capacity has hindered the applications of vanadium redox flow batteries (VFBs), which are promising energy storage devices with many benefits. Mixing positive and negative electrolytes can recover some of the lost capacity but is ineffective towards the increasing average valence of the mixed electrolyte caused by the side reactions. In this study, a low-cost optical average valence detector has been developed to monitor the average valence of the mixed electrolyte in VFBs. We demonstrate experimentally that with the aid of the average valence detector, the capacity of VFBs can be regularly recovered via electrolyte mixing and online electrolysis. This low-cost average valence detector has great potential for recovering the decayed capacities of VFBs in large-scale energy storage stations, which consist of thousands of VFBs.
机译：容量的下降阻碍了钒氧化还原液流电池（VFB）的应用，而钒液流电池是具有许多优点的有前途的储能设备。混合正负电解质可以恢复一些损失的容量，但是对于副反应引起的混合电解质平均价的增加无效。在这项研究中，已开发出一种低成本的光学平均价检测器来监测VFB中混合电解质的平均价。我们通过实验证明，借助平均价检测器，可以通过电解质混合和在线电解定期回收VFB的容量。这种低成本的平均价检测器具有巨大的潜力，可以恢复由数千个VFB组成的大型储能站中VFB的衰减容量。

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