Organic Redox Active Molecular Engineer for Non-Aqueous Redox Flow Battery

2014 ◽  
Keyword(s):  
Redox Flow Battery ◽  
Flow Battery ◽  
Redox Active

All-PEGylated redox-active metal-free organic molecules in non-aqueous redox flow battery

2020 ◽  
Vol 8 (31) ◽  
pp. 15715-15724 ◽  
Author(s):  
Jingchao Chai ◽  
Amir Lashgari ◽  
Xiao Wang ◽  
Caroline K. Williams ◽  
Jianbing “Jimmy” Jiang
Keyword(s):  
Organic Molecules ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Active Materials ◽  
Metal Free ◽  
Redox Active ◽  
Active Metal ◽  
Molecular Sizes ◽  
The Stability ◽  
Redox Active Metal

A non-aqueous redox flow battery based on all-PEGylated, metal-free compounds is presented. The PEGylation enhances the stability of the redox-active materials, alleviating crossover by increasing the anolyte and catholyte species’ molecular sizes.

scholarly journals Symmetric, Robust, and High-voltage Organic Redox Flow Battery Model Based on a Helical Carbenium Ion Electrolyte

2020 ◽  
Author(s):  
Jules Moutet ◽  
Jose M Veleta ◽  
thomas Gianetti
Keyword(s):  
Open Circuit Potential ◽  
Open Circuit ◽  
Kinetic Properties ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Capacity Retention ◽  
Battery Model ◽  
Redox Active ◽  
Carbenium Ion ◽  
Scale Integration

Redox flow batteries (RFBs) represent a promising technology for grid-scale integration of renewable energy. Redox-active molecular pairs with large potential windows have been identified as key components of these systems. However, cross-contamination problems encountered by the use of different catholyte and anolyte species still limits the development of reliable organic RFBs. Herein, we report the first use of a helical carbenium ion, with three stable oxidation states, as electrolyte for the development of symmetric cells. Cyclic voltammo-amperometric studies were conducted in acetonitrile to assess the essential kinetic properties for flow battery performance and cycling stability of this molecule. The selected [4]helicenium ion was then evaluated by using mono- and bi-electronic cycling experiments, resulting in 745 and 80 cycles respectively, with near-perfect capacity retention. This helical carbenium ion based electrolyte achieved a proof-of-principle 2.12 V open circuit potential as an all-organic symmetric RFB.<br>

scholarly journals Computational design of molecules for an all-quinone redox flow battery

2015 ◽  
Vol 6 (2) ◽  
pp. 885-893 ◽  
Author(s):  
Süleyman Er ◽  
Changwon Suh ◽  
Michael P. Marshak ◽  
Alán Aspuru-Guzik
Keyword(s):  
High Throughput ◽  
High Throughput Screening ◽  
Computational Design ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Screening Approach ◽  
Redox Active ◽  
Flow Batteries ◽  
Aqueous Flow

We demonstrate a successful high-throughput screening approach for the discovery of inexpensive, redox-active quinone molecules for organic-based aqueous flow batteries.

scholarly journals Increased Performance of an All-Organic Redox Flow Battery Model by Nitration of the [4]Helicenium DMQA Ion Electrolyte

2021 ◽  
Author(s):  
Jules Moutet ◽  
David Mills ◽  
Md Mubarak Hossain ◽  
Thomas L. Gianetti
Keyword(s):  
Energy Storage ◽  
Large Scale ◽  
Organic Molecules ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Redox Flow Batteries ◽  
Battery Model ◽  
Recent Advances ◽  
Redox Active ◽  
Scalable Design

Redox Flow Batteries (RFBs) through their scalable design and virtually unlimited capacity, are promising candidates for large-scale energy storage. While recent advances in the development of redox-active bipolar organic molecules...

An Organic Bifunctional Redox Active Material for Symmetric Aqueous Redox Flow Battery

Nano Energy ◽  
2021 ◽  
pp. 106422
Author(s):  
Gabriel Sikukuu Nambafu ◽  
Kumar Siddharth ◽  
Cheng Zhang ◽  
Tianshou Zhao ◽  
Qing Chen ◽  
...  
Keyword(s):  
Active Material ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Redox Active

Symmetric, Robust, and High-voltage Organic Redox Flow Battery Model Based on a Helical Carbenium Ion Electrolyte

2020 ◽  
Author(s):  
Jules Moutet ◽  
Jose M Veleta ◽  
thomas Gianetti
Keyword(s):  
Open Circuit Potential ◽  
Open Circuit ◽  
Kinetic Properties ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Capacity Retention ◽  
Battery Model ◽  
Redox Active ◽  
Carbenium Ion ◽  
Scale Integration

Redox flow batteries (RFBs) represent a promising technology for grid-scale integration of renewable energy. Redox-active molecular pairs with large potential windows have been identified as key components of these systems. However, cross-contamination problems encountered by the use of different catholyte and anolyte species still limits the development of reliable organic RFBs. Herein, we report the first use of a helical carbenium ion, with three stable oxidation states, as electrolyte for the development of symmetric cells. Cyclic voltammo-amperometric studies were conducted in acetonitrile to assess the essential kinetic properties for flow battery performance and cycling stability of this molecule. The selected [4]helicenium ion was then evaluated by using mono- and bi-electronic cycling experiments, resulting in 745 and 80 cycles respectively, with near-perfect capacity retention. This helical carbenium ion based electrolyte achieved a proof-of-principle 2.12 V open circuit potential as an all-organic symmetric RFB.<br>

Symmetric, Robust, and High-voltage Organic Redox Flow Battery Model Based on a Helical Carbenium Ion Electrolyte

2020 ◽  
Author(s):  
Jules Moutet ◽  
Jose M Veleta ◽  
thomas Gianetti
Keyword(s):  
Open Circuit Potential ◽  
Open Circuit ◽  
Kinetic Properties ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Capacity Retention ◽  
Battery Model ◽  
Redox Active ◽  
Carbenium Ion ◽  
Scale Integration

Redox flow batteries (RFBs) represent a promising technology for grid-scale integration of renewable energy. Redox-active molecular pairs with large potential windows have been identified as key components of these systems. However, cross-contamination problems encountered by the use of different catholyte and anolyte species still limits the development of reliable organic RFBs. Herein, we report the first use of a helical carbenium ion, with three stable oxidation states, as electrolyte for the development of symmetric cells. Cyclic voltammo-amperometric studies were conducted in acetonitrile to assess the essential kinetic properties for flow battery performance and cycling stability of this molecule. The selected [4]helicenium ion was then evaluated by using mono- and bi-electronic cycling experiments, resulting in 745 and 80 cycles respectively, with near-perfect capacity retention. This helical carbenium ion based electrolyte achieved a proof-of-principle 2.12 V open circuit potential as an all-organic symmetric RFB.<br>

A High Voltage Organic Redox Flow Battery with Redox Couples O2/Tetrabutylammonium Complex and Tris(4-bromophenyl)amine as Redox Active Species

2018 ◽  
Vol 165 (11) ◽  
pp. A2696-A2702 ◽  
Author(s):  
Vasudevarao Pasala ◽  
Chinmaya Ramachandra ◽  
Sankararaman Sethuraman ◽  
Kothandaraman Ramanujam
Keyword(s):  
High Voltage ◽  
Active Species ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Redox Couples ◽  
Redox Active
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