Low loading of Pt@Graphite felt for enhancing multifunctional activity towards achieving high energy efficiency of Zn–Br2 redox flow battery

Mariyappan, Karuppusamy; Ramachandran, V.; Subramanian, B.; Ragupathy, P.; Ulaganathan, Mani

doi:10.1016/j.jpowsour.2020.228912

Cited by 27 publications

(18 citation statements)

References 51 publications

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“…However, except for some precious metals and oxides, most metals and metal oxides are unstable in the presence of highly corrosive bromine. So far, metal-based cathode materials currently available for Br-FBs are Pt, TiN, ZrO x , TiO x , WO x , AlO x , etc., which show high activity on Br 2 /Brredox reactions and improve the reversibility of Br 2 /Brredox reactions [38,40,41]. Among them, Pt exhibits good adsorption characteristics towards Br 2 , Brions, and Br 3 ions, which significantly affects the electrochemical reactions of Br 2 /Brcouple on Pt cathode [42,43].…”

Section: The Cathode Materials Of Br-fbsmentioning

confidence: 99%

“…Carbon Fiber-Based Materials. Different from the intrinsically porous structures of carbon materials, the porous (2D or 3D) carbon fiber-based materials, such as CF, GF, carbon paper (CP), and carbon cloth (CC), are constructed by interweaving carbon fibers with a diameter of tens of micrometers and length of several centimeters (Figure 5(a)) [40]. First, the self-supported 3D porous structures with high porosity facilitate the electrolyte flow, meaning smaller concentration and diffusion polarization [37,64].…”

Section: Porousmentioning

confidence: 99%

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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: The Cathode Materials Of Br-fbsmentioning

confidence: 99%

Section: Porousmentioning

confidence: 99%

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

et al. 2022

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“…Mariyappan and coworkers studied the effect of adding a low loading of platinum on graphite felt using a pulsed laser deposition. An 88% EE at 50 mA cm −2 was achieved using the mentioned strategy [253]. Lee et al [254] implemented a titanium-based mesh interlayer with a carbon-based electrode to suppress the formation of dendrites, achieving 48.2% EE at 40 mA cm −2 .…”

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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“…In order to solve the problem of zinc dendrites, great efforts have been carried out, such as the novel design of electrode structure 21–23 and the smart introduction of electrolyte additives, 24–27 to realize more uniform zinc deposition. What is more, membrane, as one of the key components of ZFBs, not only prevents the penetration of the electrolyte on both sides, but also allows the transfer of charging‐balancing ions, which plays a vital role in the battery performance 28–31 .…”

Section: Introductionmentioning

confidence: 99%

Fish‐scale‐like nano‐porous membrane based on zeolite nanosheets for long stable zinc‐based flow battery

et al. 2022

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Zinc-based flow batteries receive widespread attention due to their advantages of low cost and high energy density. However, zinc dendrites are easy to appear during the charge process, pierce the membrane and thus destroy the battery, which seriously restrict its further development. In this article, MFI-type zeolite nanosheets (ns-MFIs) with high mechanical strength and hydrophobicity are in situ introduced to porous polymer membranes, which spontaneously form turnup fish-scale-like structure through the one-step phase inversion/surface segregation process. This special structure well disperses mechanical energy to provide effective protection characteristics to resist the penetration of zinc dendrites, and meanwhile promotes the uniform zinc depositions on the electrode by alleviating the water migration and accelerating zincate ion diffusion, so as to prolong the cycle life of the battery for more than 600 cycles, which is 4 times and 2.5 times longer than the commercial Nafion 212 and pristine porous polymer membrane, respectively. Moreover, the subnano size pores and high-aspect-ratio of ns-MFIs afford membranes extra ion sieving ability and transport area for the charging-balancing ions OH À to ensure superior battery performance, delivering an average coulombic efficiency (CE) of ~98.5%, voltage efficiency (VE) of ~83.2%, and energy efficiency (EE) of ~81.9% at 80 mA/cm 2 .

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Low loading of Pt@Graphite felt for enhancing multifunctional activity towards achieving high energy efficiency of Zn–Br2 redox flow battery

Cited by 27 publications

References 51 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

Fish‐scale‐like nano‐porous membrane based on zeolite nanosheets for long stable zinc‐based flow battery

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