Monitoring the State of Charge of Operating Vanadium Redox Flow Batteries

机译：监控运行中的钒氧化还原液流电池的充电状态

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We describe methods for assessment of the state of charge (SOC) of vanadium redox flow batteries during operation using UV-vis spectrophotometry and full cell OCV measurements. The absorbance of the negative electrolyte solution at 433 nm, 600 nm and 750 nm is linear in SOC for SOC ＞ 0.2. The absorbance of the positive electrolyte does not display a linear relationship with SOC, which we attribute to the formation of a strongly absorbing third species. An analysis of the excess absorbance of the positive electrolyte suggests that a complex with 1:1 stoichiometry is formed by VO~(2+) and VO_2~+. Full-cell OCV measurements were found to be an inaccurate gauge of the state of charge of the battery.

机译：我们描述了使用紫外线可见分光光度法和全电池OCV测量来评估操作期间钒氧化还原液流电池的充电状态（SOC）的方法。 SOC≥0.2时，负极电解液在433 nm，600 nm和750 nm处的吸光度呈线性关系。正极电解质的吸光度与SOC没有显示线性关系，这归因于形成了具有强烈吸收作用的第三种物质。对正电解质的过量吸光度的分析表明，VO〜（2+）和VO_2〜+形成了化学计量比为1：1的配合物。发现全电池OCV测量值不能准确衡量电池的充电状态。

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来源
《Large scale energy storage for smart grid applications》|2011年|1-9|共9页
会议地点 Boston MA(US)
作者
Zhijiang Tang; Douglas S. Aaron; Alexander B. Papandrew; Thomas A. Zawodzinski Jr.;
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Department of Chemical and Biomolecular Engineering University of Tennessee, Knoxville, TN 37996;

Department of Chemical and Biomolecular Engineering University of Tennessee, Knoxville, TN 37996;

Department of Chemical and Biomolecular Engineering University of Tennessee, Knoxville, TN 37996;

Department of Chemical and Biomolecular Engineering University of Tennessee, Knoxville, TN 37996,Physical Chemistry of Materials Group, Oak Ridge National Laboratory, Oak Ridge, TN 37831;

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1. Mitigating capacity decay and improving charge-discharge performance of a vanadium redox flow battery with asymmetric operating conditions [J] . Lu M. Y., Yang W. W., Deng Y. M., Electrochimica Acta . 2019,第期

机译：通过不对称的操作条件减轻容量衰减和提高钒氧化还原流量的充放电性能
2. Real-time monitoring of the state of charge (SOC) in vanadium redox-flow batteries using UV-Vis spectroscopy in operando mode [J] . Kyung-Hee Shin, Chang-Soo Jin, Jae-Young So, Journal of Energy Storage . 2020,第Feba期

机译：在操作模式下使用UV-Vis光谱法实时监控钒氧化还原液流电池中的充电状态（SOC）
3. A combined in situ monitoring approach for half cell state of charge and state of health of vanadium redox flow batteries [J] . Struckmann Thorsten, Kuhn Peter, Ressel Simon Electrochimica Acta . 2020,第1期

机译：半电池充电状态的原位监测方法和钒氧化铈流量电池的健康状况
4. Monitoring the State of Charge of Operating Vanadium Redox Flow Batteries [C] . Zhijiang Tang, Douglas S. Aaron, Alexander B. Papandrew, Meeting of the Electrochemical Society . 2012

机译：监测操作钒氧化还原流量电池的充电状态
5. Understanding Critical Factors Underpinning Electrode Degradation in Vanadium Redox Flow Batteries [D] . Nourani, Mahnaz . 2020

机译：了解钒氧化还原流电池中缺乏电极降解的关键因素
6. Enhanced Catalysis of P-doped SnO2 for the V2+/V3+ Redox Reaction in Vanadium Redox Flow Battery [O] . Xiaojian Feng, Zixuan Zhang, Tongxue Zhang, 2021

机译：在钒氧化还原流电池中增强对V2 + / V3 +氧化还原反应的P掺杂的SnO2的催化
7. State‐of‐Charge: Monitoring the State‐of‐Charge of a Vanadium Redox Flow Battery with the Acoustic Attenuation Coefficient: An In Operando Noninvasive Method (Small Methods 12/2019) [O] . Xiaoqin Zang, Litao Yan, Yang Yang, 2019

机译：支配国：监测钒氧化还原流电池的负荷，具有声学衰减系数：AN Operando非侵入性方法（小方法12/2019）

Monitoring the State of Charge of Operating Vanadium Redox Flow Batteries

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