In situ FTIR spectroscopy of the Zn–Br battery bromine storage complex at glassy carbon electrodes

Kautek, Wolfgang; Conradi, Andrea; Fabjan, Ch.; Bauer, G.

doi:10.1016/s0013-4686(01)00762-9

Cited by 46 publications

(32 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Nowadays, N,Nmethylethylpyrrolidinium (MEP) or N,N-methylethylmorpholinium (MEM) or their mixtures are mostly used. [87][88][89] Thepresence of the quarternary ammonium bromides (QBr) results in the stabilization of the existing polybromide complexes by interaction with the large organic cation to form ah ydrophobic organic phase separated from the aqueous solution. Thea mount of active bromine in the aqueous phase is significantly lowered (ca.…”

Section: Inorganic Redox Couples/protic Electrolytesmentioning

confidence: 99%

The Chemistry of Redox‐Flow Batteries

et al. 2015

View full text Add to dashboard Cite

The development of various redox-flow batteries for the storage of fluctuating renewable energy has intensified in recent years because of their peculiar ability to be scaled separately in terms of energy and power, and therefore potentially to reduce the costs of energy storage. This has resulted in a considerable increase in the number of publications on redox-flow batteries. This was a motivation to present a comprehensive and critical overview of the features of this type of batteries, focusing mainly on the chemistry of electrolytes and introducing a thorough systematic classification to reveal their potential for future development.

show abstract

Section: Inorganic Redox Couples/protic Electrolytesmentioning

confidence: 99%

The Chemistry of Redox‐Flow Batteries

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The existence of polybromides has been discussed in investigations of zinc‐bromine (flow) batteries 49,96–98. It was observed that after the addition of different bromine salts to bromine the vapor pressure of the substance decreases, while the conductivity increases.…”

Section: Applicationsmentioning

confidence: 99%

Recent Discoveries of Polyhalogen Anions – from Bromine to Fluorine

Haller

Riedel

2014

Zeitschrift anorg allge chemie

141

173

View full text Add to dashboard Cite

In this review we discuss the recent discoveries in polyhalide anion chemistry with the main focus on polybromide, ‐chloride, and ‐fluoride anions. Based on novel synthetic strategies either in ionic liquids or in neat halogens several new polyhalides of bromine and chlorine were synthesized. Beyond these discoveries the chemistry of polyfluoride monoanions is reviewed. Such species were investigated under cryogenic conditions at 4 K in conjunction with quantum‐chemical calculations. In addition to these bonding and structural discussions, an overview of possible applications of such polyhalide anions is provided.

show abstract

“…Among these RFBs, the ZBB is one of the most practical options based on its higher energy density (70 Wh kg −1 ) and lower cost 6 – 8 . The electrochemical reactions of the ZBB are the cathodic deposition of zinc at negative electrode and the anodic formation of a polybromide phase at positive electrode during charging, and the anodic dissolution of zinc at negative electrode and the cathodic formation of Br − at positive electrode during discharging 9 – 13 as described in the following equations. …”

Section: Introductionmentioning

confidence: 99%

Ultrathin Nafion-filled porous membrane for zinc/bromine redox flow batteries

Kim

Doo

et al. 2017

Sci Rep

View full text Add to dashboard Cite

In this work, we present a 16 μm-thick Nafion-filled porous membrane for Zn/Br redox flow batteries (ZBBs). By using molecular dynamics simulation and dynamic light scattering analysis, we rationally design Nafion solution for Nafion impregnation into a porous polypropylene (PP) separator. A void-free Nafion/PP membrane is successfully fabricated by using NMP as a solvent for the Nafion solution. The resulting membrane shows a smaller area specific resistance in comparison with 600 μm-thick, commercial SF-600 porous membrane. Due to its dense morphology, Br2 diffusivity of the Nafion/PP membrane is two orders of magnitude lower than that of SF-600, resulting in a comparable Br2 crossover in spite of 37.5 times smaller membrane thickness. As a result, the ZBB based on the Nafion/PP membrane exhibits a higher energy efficiency, demonstrating that ion exchange membrane can outperform the conventional porous membrane by reducing the membrane thickness with inexpensive porous substrate.

show abstract

In situ FTIR spectroscopy of the Zn–Br battery bromine storage complex at glassy carbon electrodes

Cited by 46 publications

References 14 publications

The Chemistry of Redox‐Flow Batteries

The Chemistry of Redox‐Flow Batteries

Recent Discoveries of Polyhalogen Anions – from Bromine to Fluorine

Ultrathin Nafion-filled porous membrane for zinc/bromine redox flow batteries

Contact Info

Product

Resources

About