Battery performance optimization and multi-component transport enhancement of organic flow battery based on channel section reconstruction

Xiao, Guozhen; Yang, Guoan; Zhao, Sixiang; Xia, Lixing; Chu, Fengming; Tan, Zhan’ao

doi:10.1016/j.energy.2022.124757

Cited by 14 publications

(7 citation statements)

References 39 publications

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“…The flow battery stores energy in electrolytes in two separate external tanks and reduces oxidation (redox); therefore, there is no self-discharge. Moreover, with the increase in the size of electrolyte tanks, the storage capacity can reach several hundred megawatts [39]. There are two types of flow batteries: the zinc bromide battery (ZEBRA) and vanadium redox flow battery (VRFB).…”

Section: Flow Batterymentioning

confidence: 99%

A new index for techno‐economical comparison of storage technologies considering effect of self‐discharge

Moradi‐Shahrbabak

Jadidoleslam

2023

IET Renewable Power Gen

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This paper presents an improved levellized cost of storage (ILCOS) index for comparing various storage technologies. The ILCOS is a modified index based on the conventional levellized cost of storage (LCOS) that includes the effect of daily self‐discharge. This index calculates the total cost of discharged energy for a storage system over its lifetime. Comparing the conventional LCOS and the proposed ILCOS metrics indicates that the ILCOS is a more accurate index for the economic analysis of storage technologies. Also, this paper introduces an algorithm by using the ILCOS index for selecting the optimum storage technology in any individual application. The algorithm inputs are the needed discharge time, the required stand‐by time, and the technical and economical characteristics of storage systems; the output is the optimum storage technology. Based on the discharge time, this algorithm investigates the storage technology in three categories: short‐duration, medium‐duration, and long‐duration applications. Any storage system that has the minimum ILCOS is the economically winning technology. Given the characteristics of the existing storage technologies, the case study shows that for long‐duration applications, the pumped hydroelectric storage (PHS) is the best option. Also, vanadium redox flow battery (VRFB) and lead‐acid (PbA) batteries are the most economic storages for medium‐duration applications.

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Section: Flow Batterymentioning

confidence: 99%

A new index for techno‐economical comparison of storage technologies considering effect of self‐discharge

Moradi‐Shahrbabak

Jadidoleslam

2023

IET Renewable Power Gen

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“…The momentum conservation equation of the active ions in electrode can be calculated by the Brinkman equation, which is presented as equation (10):…”

Section: Transport and Mass Conservation In Electrodesmentioning

confidence: 99%

“…Moreover, the zinc‐iron flow batteries, hydrogen‐bromine redox flow batteries and organic‐inorganic aqueous flow battery attract numerous researchers with their unique characteristics [7,8] . No matter which type of flow battery, the optimization of external conditions and the analysis of mass transfer behavior are essential [9,10] …”

Section: Introductionmentioning

confidence: 99%

“…[7,8] No matter which type of flow battery, the optimization of external conditions and the analysis of mass transfer behavior are essential. [9,10] It is well accepted that the mass transfer of flow batteries based on initial concentration, inlet velocity and flow field can influence the battery performance. [11,12] During the past decade, there are plenty of investigations on the flow field and electrode optimization.…”

Section: Introductionmentioning

confidence: 99%

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Mass Transfer Characteristic Analysis and Optimization of Flow Field for Neutral Organic Redox Flow Battery Based on 1‐DPAQCl

et al. 2022

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A novel negative electrolyte for organic redox flow battery has been synthesized, which has higher solubility in neutral solution. In order to promote the commercialization of the novel electrolyte(1-DPAQCl), a series of optimization should be carried out, in which the first is the operating conditions and mass transfer. A 3D steady state finite element model was established, which was compared with a lot of experimental data. The effects of only increasing the positive concentrations and only increasing the negative concentrations on the battery behaviors have been analyzed and the results showed that the setting of only increasing the positive concentrations can improve the discharge voltage up to 1.8 % and decrease the charging voltage by 1.21 %. The battery performances under four flow fields were investigated based on this model and the concentration uniformity factor of the four flow design were obtained. The results presented that the charge-discharge voltages of the interdigital flow field (IFF) was the best, which was followed by the rotary flow field (RFF) and serpentine flow field (SFF), the parallel flow field (PFF) was worst. The uniformity factors of IFF were 23.5 % higher than that of PFF and 12.5 % higher than that of SFF.

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“…It was generally accepted that the optimizations of mass transfer on the flow battery performance were mainly reflected in the flow field design. 16,17 Sun et al 18 developed a new VRFB design by changing the relative position of the electrode and flow field, which can decrease the internal ionic resistance and increase the effective area of the ion-exchange membrane. Sharma et al 19 curve and electrochemical impedance spectroscopy (EIS).…”

Section: Introductionmentioning

confidence: 99%

Novel Interdigitated Flow Field with a Separated Inlet and Outlet for the Vanadium Redox Flow Battery

Chu,

Liu,

Shen

et al. 2023

Energy Fuels

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The vanadium redox flow battery (VRFB) is considered as a promising energy storage technology to solve the environmental problems of global warming. The optimizations should be carried out before the large-scale commercialization of the VRFB, and the flow field greatly affects the battery performance. In the paper, a two-sides interdigitated flow field (IFF) is designed for improving the mass transfer behaviors, and a three-dimensional numerical model is established to predict the charge–discharge process of the VRFB. The charge–discharge voltage, overpotential, concentration distribution, and uniformity factors are analyzed to evaluate the battery performance of different flow field designs (case 1, the conventional IFF; case 2, the two-sided IFF; and case 3, the two-sided IFF with a high contacting area). In comparison to cases 1 and 2, the VRFB with the case 3 design possesses the highest discharge voltage and the lowest charge voltage. For the distribution uniformity factor of V2+, case 2 is 5.5% higher than case 1 and case 3 is 17% higher than case 1. The two-sided IFF outputs the highest net power. Furthermore, case 3 can acquire 85.6% system efficiency, while the efficiency of case 1 is 84.5%, which shows that the two-sided IFF is more suitable for the large-scale VRFB.

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Battery performance optimization and multi-component transport enhancement of organic flow battery based on channel section reconstruction

Cited by 14 publications

References 39 publications

A new index for techno‐economical comparison of storage technologies considering effect of self‐discharge

A new index for techno‐economical comparison of storage technologies considering effect of self‐discharge

Mass Transfer Characteristic Analysis and Optimization of Flow Field for Neutral Organic Redox Flow Battery Based on 1‐DPAQCl

Novel Interdigitated Flow Field with a Separated Inlet and Outlet for the Vanadium Redox Flow Battery

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