Revisiting the positive roles of liquid polysulfides in alkali metal–sulfur electrochemistry: from electrolyte additives to active catholyte

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21595-21621 ◽  
Author(s):  
Caiyun Chang ◽  
Xiong Pu
Keyword(s):  
Alkali Metal ◽  
Electrolyte Additives ◽  
Redox Flow Batteries ◽  
Flow Batteries

The positive roles of dissolved polysulfides in Li–S electrochemistry are discussed, followed by a progress summary of alkali metal-polysulfide (redox flow) batteries.

A review of electrolyte additives and impurities in vanadium redox flow batteries

2018 ◽  
Vol 27 (5) ◽  
pp. 1269-1291 ◽  
Author(s):  
Liuyue Cao ◽  
Maria Skyllas-Kazacos ◽  
Chris Menictas ◽  
Jens Noack
Keyword(s):  
Electrolyte Additives ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

Multielectron Cycling of a Low-Potential Anolyte in Alkali Metal Electrolytes for Nonaqueous Redox Flow Batteries

2017 ◽  
Vol 2 (10) ◽  
pp. 2430-2435 ◽  
Author(s):  
Koen H. Hendriks ◽  
Christo S. Sevov ◽  
Monique E. Cook ◽  
Melanie S. Sanford
Keyword(s):  
Alkali Metal ◽  
Redox Flow Batteries ◽  
Flow Batteries

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>.

Thermo–chemical treatments based on NH3/O2 for improved graphite-based fiber electrodes in vanadium redox flow batteries

Carbon ◽  
2013 ◽  
Vol 60 ◽  
pp. 280-288 ◽  
Author(s):  
Cristina Flox ◽  
Javier Rubio-García ◽  
Marcel Skoumal ◽  
Teresa Andreu ◽  
Juan Ramón Morante
Keyword(s):  
Chemical Treatments ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

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

Locating Shunt Currents in a Multistack System of All-Vanadium Redox Flow Batteries

2021 ◽  
Author(s):  
Han-Wen Chou ◽  
Feng-Zhi Chang ◽  
Hwa-Jou Wei ◽  
Bhupendra Singh ◽  
Amornchai Arpornwichanop ◽  
...  
Keyword(s):  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox
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