A Highly Soluble Organic Catholyte for Non-Aqueous Redox Flow Batteries

Aman Preet Kaur; Nicolas E. Holubowitch; Selin Ergun; Corrine F. Elliott; Susan A. Odom

doi:10.1002/ente.201500020

A Highly Soluble Organic Catholyte for Non-Aqueous Redox Flow Batteries

Aman Preet Kaur, Nicolas E. Holubowitch, Selin Ergun, Corrine F. Elliott, Susan A. Odom

Research output: Contribution to journal › Article › peer-review

113 Scopus citations

Abstract

A phenothiazine derivative with high solubility in carbonate solvents containing lithium salts showed extensive overcharge protection and, as a result, has been evaluated as a catholyte for non-aqueous redox flow batteries. We report the testing of 3,7-bis(trifluoromethyl)-N-ethylphenothiazine as a catholyte and 2,3,6-trimethylquinoxaline as the anolyte in redox flow batteries containing 0.05, 0.15, and 0.35M active material and found the longest capacity retention over about 60cycles at 0.15M. To our knowledge, this is the most soluble catholyte candidate with a robust radical cation.

Original language	English
Pages (from-to)	476-480
Number of pages	5
Journal	Energy Technology
Volume	3
Issue number	5
DOIs	https://doi.org/10.1002/ente.201500020
State	Published - May 1 2015

Bibliographical note

Publisher Copyright:
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Funding

Funders	Funder number
National Science Foundation (NSF)	1300653

Keywords

Electron transfer
Energy storage
Organic electrolyte
Quinoxaline
Redox flow batteries

ASJC Scopus subject areas

General Energy

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10.1002/ente.201500020

Cite this

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title = "A Highly Soluble Organic Catholyte for Non-Aqueous Redox Flow Batteries",

abstract = "A phenothiazine derivative with high solubility in carbonate solvents containing lithium salts showed extensive overcharge protection and, as a result, has been evaluated as a catholyte for non-aqueous redox flow batteries. We report the testing of 3,7-bis(trifluoromethyl)-N-ethylphenothiazine as a catholyte and 2,3,6-trimethylquinoxaline as the anolyte in redox flow batteries containing 0.05, 0.15, and 0.35M active material and found the longest capacity retention over about 60cycles at 0.15M. To our knowledge, this is the most soluble catholyte candidate with a robust radical cation.",

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T1 - A Highly Soluble Organic Catholyte for Non-Aqueous Redox Flow Batteries

AU - Kaur, Aman Preet

AU - Holubowitch, Nicolas E.

AU - Ergun, Selin

AU - Elliott, Corrine F.

AU - Odom, Susan A.

PY - 2015/5/1

Y1 - 2015/5/1

N2 - A phenothiazine derivative with high solubility in carbonate solvents containing lithium salts showed extensive overcharge protection and, as a result, has been evaluated as a catholyte for non-aqueous redox flow batteries. We report the testing of 3,7-bis(trifluoromethyl)-N-ethylphenothiazine as a catholyte and 2,3,6-trimethylquinoxaline as the anolyte in redox flow batteries containing 0.05, 0.15, and 0.35M active material and found the longest capacity retention over about 60cycles at 0.15M. To our knowledge, this is the most soluble catholyte candidate with a robust radical cation.

AB - A phenothiazine derivative with high solubility in carbonate solvents containing lithium salts showed extensive overcharge protection and, as a result, has been evaluated as a catholyte for non-aqueous redox flow batteries. We report the testing of 3,7-bis(trifluoromethyl)-N-ethylphenothiazine as a catholyte and 2,3,6-trimethylquinoxaline as the anolyte in redox flow batteries containing 0.05, 0.15, and 0.35M active material and found the longest capacity retention over about 60cycles at 0.15M. To our knowledge, this is the most soluble catholyte candidate with a robust radical cation.

KW - Electron transfer

KW - Energy storage

KW - Organic electrolyte

KW - Quinoxaline

KW - Redox flow batteries

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A Highly Soluble Organic Catholyte for Non-Aqueous Redox Flow Batteries

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

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