scholarly journals Toward Improved Catholyte Materials for Redox Flow Batteries: What Controls Chemical Stability of Persistent Radical Cations?

2017 ◽  
Vol 121 (42) ◽  
pp. 23347-23358 ◽  
Author(s):  
Jingjing Zhang ◽  
Ilya A. Shkrob ◽  
Rajeev S. Assary ◽  
Siu on Tung ◽  
Benjamin Silcox ◽  
...  
Keyword(s):  
Chemical Stability ◽  
Radical Cations ◽  
Redox Flow Batteries ◽  
Flow Batteries

scholarly journals Annulated Dialkoxybenzenes as Catholyte Materials for Non-aqueous Redox Flow Batteries: Achieving High Chemical Stability through Bicyclic Substitution

2017 ◽  
Vol 7 (21) ◽  
pp. 1701272 ◽  
Author(s):  
Jingjing Zhang ◽  
Zheng Yang ◽  
Ilya A. Shkrob ◽  
Rajeev S. Assary ◽  
Siu on Tung ◽  
...  
Keyword(s):  
Chemical Stability ◽  
High Chemical ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
High Chemical Stability

New highly soluble triarylamine-based materials as promising catholytes for redox flow batteries

2021 ◽  
Author(s):  
Elena Romadina ◽  
Ivan Volodin ◽  
Keith Stevenson ◽  
Pavel Troshin
Keyword(s):  
Chemical Stability ◽  
Glycol Ether ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Oligoethylene Glycol

A series of arylamines bearing oligoethylene glycol ether solubilizing moieties were designed and comprehensively evaluated as promising catholyte materials for non-aqueous redox flow batteries (RFBs). Triphenylamine core maintains chemical stability...

Poly(p-phenylene)-based membrane materials with excellent cell efficiencies and durability for use in vanadium redox flow batteries

2017 ◽  
Vol 5 (24) ◽  
pp. 12285-12296 ◽  
Author(s):  
Hee Young Shin ◽  
Min Suc Cha ◽  
Soo Hyun Hong ◽  
Tae-Ho Kim ◽  
Dae-Soo Yang ◽  
...  
Keyword(s):  
Chemical Stability ◽  
Cell Performance ◽  
Membrane Materials ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

sPBPSP-z ionomers exhibit excellent cell performance in VRFBs as well as remarkable chemical stability.

Ionic transportation and chemical stability of high-endurance porous polyethylene separator for vanadium redox flow batteries

2018 ◽  
Vol 327 ◽  
pp. 110-116 ◽  
Author(s):  
Ho-Young Jung ◽  
Geon-O Moon ◽  
T. Sadhasivam ◽  
Chang-Soo Jin ◽  
Won-Shik Park ◽  
...  
Keyword(s):  
Chemical Stability ◽  
Porous Polyethylene ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

A Self-Trapping, Bipolar Viologen Bromide Electrolyte for Aqueous Redox Flow Batteries

2020 ◽  
Author(s):  
wenda wu ◽  
Jian Luo ◽  
Fang Wang ◽  
Bing Yuan ◽  
Tianbiao Liu
Keyword(s):  
Redox Flow Battery ◽  
Capacity Retention ◽  
Redox Flow Batteries ◽  
Redox Electrolyte ◽  
Charge Process ◽  
Self Trapping ◽  
Flow Batteries ◽  
Total Capacity ◽  
Neutral Conditions ◽  
Low Solubility

Aqueous organic redox flow batteries (AORFBs) have become increasing attractive for scalable energy storage. However, it remains challenging to develop high voltage, powerful AORFBs because of the lack of catholytes with high redox potential. Herein, we report methyl viologen dibromide (<b>[MV]Br<sub>2</sub></b>) as a facile self-trapping, bipolar redox electrolyte material for pH neutral redox flow battery applications. The formation of the <b>[MV](Br<sub>3</sub>)<sub>2</sub></b> complex was computationally predicted and experimentally confirmed. The low solubility <b>[MV](Br<sub>3</sub>)<sub>2</sub></b> complex in the catholyte during the battery charge process not only mitigates the crossover of charged tribromide species (Br<sub>3</sub><sup>-</sup>) and addresses the toxicity concern of volatile bromine simultaneously. A 1.53 V bipolar MV/Br AORFB delivered outstanding battery performance at pH neutral conditions, specifically, 100% total capacity retention, 133 mW/cm<sup>2</sup> power density, and 60% energy efficiency at 40 mA/cm<sup>2</sup>.

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