The Dual Role of Bridging Phenylene in an Extended Bipyridine System for High-Voltage and Stable Two-Electron Storage in Redox Flow Batteries

2021 ◽  
Author(s):  
Mingguang Pan ◽  
Yan Lu ◽  
Shuyu Lu ◽  
Bo Yu ◽  
Jie Wei ◽  
...  
Keyword(s):  
High Voltage ◽  
Dual Role ◽  
Electron Storage ◽  
Redox Flow Batteries ◽  
Flow Batteries

scholarly journals Designer Two-Electron Storage Viologen Anolyte Materials for Neutral Aqueous Organic Redox Flow Batteries

Chem ◽  
2017 ◽  
Vol 3 (6) ◽  
pp. 961-978 ◽  
Author(s):  
Camden DeBruler ◽  
Bo Hu ◽  
Jared Moss ◽  
Xuan Liu ◽  
Jian Luo ◽  
...  
Keyword(s):  
Electron Storage ◽  
Redox Flow Batteries ◽  
Flow Batteries

Detrimental role of hydrogen evolution and its temperature-dependent impact on the performance of vanadium redox flow batteries

2019 ◽  
Vol 32 ◽  
pp. 57-62 ◽  
Author(s):  
Abdulmonem Fetyan ◽  
Gumaa A. El-Nagar ◽  
Iver Lauermann ◽  
Maike Schnucklake ◽  
Jonathan Schneider ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Temperature Dependent ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

scholarly journals Exploring the Role of Electrode Microstructure on the Performance of Non-Aqueous Redox Flow Batteries

2019 ◽  
Vol 166 (10) ◽  
pp. A2230-A2241 ◽  
Author(s):  
Antoni Forner-Cuenca ◽  
Emily E. Penn ◽  
Alexandra M. Oliveira ◽  
Fikile R. Brushett
Keyword(s):  
Redox Flow Batteries ◽  
Flow Batteries

Synthesis and Characterization of a Phthalimide-Containing Redox-Active Polymer for High-Voltage Polymer-Based Redox-Flow Batteries

2017 ◽  
Vol 219 (4) ◽  
pp. 1700267 ◽  
Author(s):  
Jan Winsberg ◽  
Stefan Benndorf ◽  
Andreas Wild ◽  
Martin D. Hager ◽  
Ulrich S. Schubert
Keyword(s):  
High Voltage ◽  
Synthesis And Characterization ◽  
Redox Flow Batteries ◽  
Redox Active ◽  
Flow Batteries

scholarly journals The Role of Oxygenic Groups and Sp3 Carbon Hybridization in Activated Graphite Electrodes for Vanadium Redox Flow Batteries

2021 ◽  
Author(s):  
Ali Hassan ◽  
Asnake Sahele Haile ◽  
Theodore Tzedakis ◽  
Heine Anton Hansen ◽  
Piotr de Silva
Keyword(s):  
Dft Calculations ◽  
Density Functional ◽  
Vanadium Redox Flow Battery ◽  
Carbon Surface ◽  
Graphite Electrodes ◽  
Functional Theory ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

<p>Graphite felt is a widely used electrode material for vanadium redox flow batteries. Electrode activation leads to the functionalization of the graphite surface with epoxy, OH, C=O, and COOH oxygenic groups and changes the carbon surface morphology and electronic</p> <p>structure; thus, improving the electrode’s electroactivity relative to the untreated graphite. In this study, we conduct density functional theory (DFT) calculations to evaluate functionalization’s</p> <p>role towards the positive half-cell reaction of the vanadium redox flow battery. The DFT calculations show that oxygenic groups improve the graphite felt’s affinity towards the VO<sup>2+</sup>/VO2<sup>+</sup> redox couple in the following order: C=O > COOH > OH > basal plane. Projected density of states (PDOS) calculations show that these groups increase the electrode’s sp<sup>3 </sup>hybridization in the same order. We conclude that the increase in the sp<sup>3</sup> hybridization is responsible for the improved electroactivity, while the oxygenic groups’ presence is responsible for this sp<sup>3</sup> increment. These insights can help in the better selection of activation processes and optimization of their parameters.</p>

Unveiling the Role of Heteroatom Gradient-Distributed Carbon Fibers for Vanadium Redox Flow Batteries with Long Service Life

2019 ◽  
Vol 11 (12) ◽  
pp. 11451-11458 ◽  
Author(s):  
Xiong-Wei Wu ◽  
Qi Deng ◽  
Chang Peng ◽  
Xian-Xiang Zeng ◽  
An-Jun Wu ◽  
...  
Keyword(s):  
Service Life ◽  
Carbon Fibers ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

Functionalised carbazole as a cathode for high voltage non-aqueous organic redox flow batteries

2020 ◽  
Vol 44 (34) ◽  
pp. 14401-14410
Author(s):  
Chinmaya R. Mirle ◽  
Raja M. ◽  
Vasudevarao P. ◽  
Sankararaman S. ◽  
Kothandaraman R.
Keyword(s):  
High Voltage ◽  
Cathode Materials ◽  
Reduction Potential ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
High Reduction

Prospective high reduction potential cathode materials have been proposed that can be used in non-aqueous redox flow battery applications.

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