Effect of positive electrode modification on the performance of zinc-bromine redox flow batteries

Archana, Kaliyaraj Selvakumar; Naresh, Raghu pandiyan; Enale, Harsha; Rajendran, Vinod; Mohan, A. M. Vinu; Bhaskar, Aiswarya; Ragupathy, P.; Dixon, Ditty

doi:10.1016/j.est.2020.101462

Cited by 40 publications

(25 citation statements)

References 29 publications

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“…The acid treatment uses strongly oxidizing acids to oxidize the felt surfaces. Differently, the electrochemical oxidation method needs to be carried out in the presence of electric fields [68]. First, the surface of the electrodes becomes rough and porous after oxidation, thereby leading to the increased specific surface area and the formation of vacancies.…”

Section: Modification Of Electrodesmentioning

confidence: 99%

Progress and Perspective of the Cathode Materials towards Bromine-Based Flow Batteries

et al. 2022

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Bromine-based flow batteries (Br-FBs) have been one of the most promising energy storage technologies with attracting advantages of low price, wide potential window, and long cycle life, such as zinc-bromine flow battery, hydrogen-bromine flow battery, and sodium polysulfide-bromine flow battery. The research and development of aqueous Br-FBs are very fast and many achievements have been realized. However, Br-FBs suffer from the sluggish kinetics of Br2/Br- redox couple and serious self-discharge caused by the diffusion of bromine, which hinder the further commercialization and industrialization of the aqueous Br-FBs. A series of mitigation strategies have been developed to figure out these challenges, especially the modifications on electrode materials. Electrode, one of the critical components in a Br-FB, provides the reactions sites for redox couples, upon which its properties exert a significant effect on the performance of Br-FBs. Up to now, extensive research has been carried out on electrode modifications to solve the aforementioned notorious issues of Br-FBs, including surface treatment and surface modification. In this review, various electrode materials and relevant modification approaches used for Br-FBs are overviewed and summarized. Moreover, the relevant mechanisms are illustrated deeply, providing comprehensive and available instruction to pursue and develop high-performance cathodes for Br-FBs with high power density and long lifespan.

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Section: Modification Of Electrodesmentioning

confidence: 99%

Progress and Perspective of the Cathode Materials towards Bromine-Based Flow Batteries

et al. 2022

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“…R. Jiang and coworkers studied how to promote a uniform distribution of zinc throughout the electrode and found that it was possible to achieve this by increasing the number of single vacancies, having demonstrated this by comparing a graphite felt electrode with defects and an original graphite felt electrode in a ZBFB [250]. Archana et al [251] opted to just modify the graphite felt electrode with a thermal treatment and a plasma treatment under oxygen and nitrogen atmospheres. The authors reported that electrodes with high surface areas and functional groups showed improved performance during cycling at low current densities.…”

Section: Zinc-bromine Flow Batteriesmentioning

confidence: 99%

Redox Flow Batteries: Materials, Design and Prospects

et al. 2021

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The implementation of renewable energy sources is rapidly growing in the electrical sector. This is a major step for civilization since it will reduce the carbon footprint and ensure a sustainable future. Nevertheless, these sources of energy are far from perfect and require complementary technologies to ensure dispatchable energy and this requires storage. In the last few decades, redox flow batteries (RFB) have been revealed to be an interesting alternative for this application, mainly due to their versatility and scalability. This technology has been the focus of intense research and great advances in the last decade. This review aims to summarize the most relevant advances achieved in the last few years, i.e., from 2015 until the middle of 2021. A synopsis of the different types of RFB technology will be conducted. Particular attention will be given to vanadium redox flow batteries (VRFB), the most mature RFB technology, but also to the emerging most promising chemistries. An in-depth review will be performed regarding the main innovations, materials, and designs. The main drawbacks and future perspectives for this technology will also be addressed.

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“…Therefore, complex agents are usually applied to suppress the formation of polybromide in RFBs using bromine. 51 Interestingly, such oily materials were observed during the cycling of AORFBs using iodine (Figure S5).…”

Section: The Performances Of Aorfbs Using Nq-oh and Ki As Redox Couplementioning

confidence: 99%

Aqueous organic redox flow batteries using naphthoquinone and iodide maintaining pH of electrolytes desirably by adoption of carboxylic acid functionalized carbon nanotube catalyst

Park

Lee

Kwon

2021

Intl J of Energy Research

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Effect of positive electrode modification on the performance of zinc-bromine redox flow batteries

Cited by 40 publications

References 29 publications

Progress and Perspective of the Cathode Materials towards Bromine-Based Flow Batteries

Progress and Perspective of the Cathode Materials towards Bromine-Based Flow Batteries

Redox Flow Batteries: Materials, Design and Prospects

Aqueous organic redox flow batteries using naphthoquinone and iodide maintaining pH of electrolytes desirably by adoption of carboxylic acid functionalized carbon nanotube catalyst

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