A low-cost average valence detector for mixed electrolytes in vanadium flow batteries

Li Dongzhi; Zhang Yunong; Li Zhuoyu; Liu Le

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A low-cost average valence detector for mixed electrolytes in vanadium flow batteries

机译：钒流电池中混合电解质的低成本平均值检测器

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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：容量的衰减阻碍了钒氧化还原流量电池（VFBS）的应用，这是具有许多益处的有前途的能量存储装置。混合阳性和负电解质可以恢复一些丢失的容量，但对由副反应引起的混合电解质的平均价值增加，这是无效的。在该研究中，已经开发出低成本的光学平均价检测器以监测VFB中混合电解质的平均值。我们通过实验证明，借助于平均价检测器，VFB的容量可以通过电解质混合和在线电解定期回收。这种低成本的平均价探测器具有恢复大型能量存储站中VFB的衰减容量的巨大潜力，该验收站包括成千上万的VFB。

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来源
《RSC Advances》 |2018年第37期|共8页
作者
Li Dongzhi; Zhang Yunong; Li Zhuoyu; Liu Le;
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作者单位

Shenyang Univ Technol Sch Sci Dept Phys Shenyang Liaoning Peoples R China;

Tsinghua Univ Grad Sch Shenzhen Inst Green Chem &

Energy Shenzhen Peoples R China;

Tsinghua Univ Grad Sch Shenzhen Inst Green Chem &

Energy Shenzhen Peoples R China;

Tsinghua Univ Grad Sch Shenzhen Inst Green Chem &

Energy Shenzhen Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类化学;
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1. A low-cost average valence detector for mixed electrolytes in vanadium flow batteries [J] . Li Dongzhi, Zhang Yunong, Li Zhuoyu, RSC Advances . 2018,第37期

机译：钒流电池中混合电解质的低成本平均值检测器
2. Vanadium Species in CH₃SO₃H and H₂SO₄ Mixed Acid as the Supporting Electrolyte for Vanadium Redox Flow Battery [J] . Sui Peng, Nan-Fang Wang, Xiao-Juan Wu, International Journal of Electrochemical Science . 2012,第1期

机译：CH _{3 SO _{3 H和H _{2 SO _{4 混合酸中的钒物种作为钒氧化还原的支持电解质液流电池}}}}
3. Investigation of electrolytes of the vanadium redox flow battery (VII): Prediction of the viscosity of mixed electrolyte solution (VOSO4 + H2SO4 + H2O) based on Eyring's theory [J] . Li Xiangrong, Jiang Chenglin, Qin Ye, The Journal of Chemical Thermodynamics . 2019,第期

机译：钒氧化还原流电池电解质的研究（VII）：基于叶片理论的混合电解质溶液粘度预测
4. Vanadium species in HCL and H2SO4 mixed acid as the positive electrolyte for Vanadium Redox Flow Battery [C] . Bingxue Hou International Conference on Machinery, Materials and Information Technology Applications . 2015

机译：HCl和H2SO4混合酸中的钒种作为钒氧化还原电池的正电解质
5. Low-Cost and Metal-Free Aqueous Flow Battery with Ultrafiltered Lignin Electrolyte [D] . Hamel, Jonathan Andrew. 2017

机译：具有超滤木质素电解质的低成本和无金属流量电池
6. Synchrotron X‐ray Radiography and Tomography of Vanadium Redox Flow Batteries—Cell Design Electrolyte Flow Geometry and Gas Bubble Formation [O] . László Eifert, Nico Bevilacqua, Kerstin Köble, -1

机译：钒氧化还原液流电池的同步X射线照相和断层扫描—电池设计电解质流动几何形状和气泡形成
7. A low-cost average valence detector for mixed electrolytes in vanadium flow batteries [O] . Dongzhi Li, Yunong Zhang, Zhuoyu Li, 2018

机译：钒流电池中混合电解质的低成本平均值检测器

A low-cost average valence detector for mixed electrolytes in vanadium flow batteries

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