Novel high energy density vanadium bromide/polyhalide redox flow battery

Aishwarya Parasuraman; Moe Ohnmar Oo; Subash Chandrarose Raghu; Qingyu Yan; Tuti Mariana Lim; Maria Skyllas-Kazacos

Novel high energy density vanadium bromide/polyhalide redox flow battery

Aishwarya Parasuraman^*, Moe Ohnmar Oo, Subash Chandrarose Raghu, Qingyu Yan, Tuti Mariana Lim, Maria Skyllas-Kazacos

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper reports the use of bromine complexing agent in V/Br redox flow battery to overcome bromine gas evolution. The performance of these complexing agents are investigated in a static flow cell. The result shows it could deliver energy density of approx. 46 Wh/kg using 2 M V^+3.5 in 8 M HBr and 2 M HCl in mixtures of bromine complexing agents comprising N-ethyl-N-methyl pyrolidinium bromide (MEP) and N-ethyl-N-methyl morpholinium bromide (MEM). The energy density was observed to increase with cycle number due to the increased utilization of bromide ions. Since the solubility of V/Br can reach up to 3.5 M with minimal heating, therefore higher energy density (above 50 Wh/kg) could be expected with higher concentration V/Br.

Original language	English
Title of host publication	AIChE 2012 - 2012 AIChE Annual Meeting, Conference Proceedings
Publication status	Published - 2012
Externally published	Yes
Event	2012 AIChE Annual Meeting, AIChE 2012 - Pittsburgh, PA, United States Duration: Oct 28 2012 → Nov 2 2012

Publication series

Name	AIChE Annual Meeting, Conference Proceedings

Conference

Conference	2012 AIChE Annual Meeting, AIChE 2012
Country/Territory	United States
City	Pittsburgh, PA
Period	10/28/12 → 11/2/12

ASJC Scopus Subject Areas

General Chemical Engineering
General Chemistry

Cite this

@inproceedings{4585435582e2448d82c89b9644192dd6,

title = "Novel high energy density vanadium bromide/polyhalide redox flow battery",

abstract = "This paper reports the use of bromine complexing agent in V/Br redox flow battery to overcome bromine gas evolution. The performance of these complexing agents are investigated in a static flow cell. The result shows it could deliver energy density of approx. 46 Wh/kg using 2 M V+3.5 in 8 M HBr and 2 M HCl in mixtures of bromine complexing agents comprising N-ethyl-N-methyl pyrolidinium bromide (MEP) and N-ethyl-N-methyl morpholinium bromide (MEM). The energy density was observed to increase with cycle number due to the increased utilization of bromide ions. Since the solubility of V/Br can reach up to 3.5 M with minimal heating, therefore higher energy density (above 50 Wh/kg) could be expected with higher concentration V/Br.",

author = "Aishwarya Parasuraman and Oo, {Moe Ohnmar} and Raghu, {Subash Chandrarose} and Qingyu Yan and Lim, {Tuti Mariana} and Maria Skyllas-Kazacos",

year = "2012",

language = "English",

isbn = "9780816910731",

series = "AIChE Annual Meeting, Conference Proceedings",

booktitle = "AIChE 2012 - 2012 AIChE Annual Meeting, Conference Proceedings",

note = "2012 AIChE Annual Meeting, AIChE 2012 ; Conference date: 28-10-2012 Through 02-11-2012",

}

TY - GEN

T1 - Novel high energy density vanadium bromide/polyhalide redox flow battery

AU - Parasuraman, Aishwarya

AU - Oo, Moe Ohnmar

AU - Raghu, Subash Chandrarose

AU - Yan, Qingyu

AU - Lim, Tuti Mariana

AU - Skyllas-Kazacos, Maria

PY - 2012

Y1 - 2012

N2 - This paper reports the use of bromine complexing agent in V/Br redox flow battery to overcome bromine gas evolution. The performance of these complexing agents are investigated in a static flow cell. The result shows it could deliver energy density of approx. 46 Wh/kg using 2 M V+3.5 in 8 M HBr and 2 M HCl in mixtures of bromine complexing agents comprising N-ethyl-N-methyl pyrolidinium bromide (MEP) and N-ethyl-N-methyl morpholinium bromide (MEM). The energy density was observed to increase with cycle number due to the increased utilization of bromide ions. Since the solubility of V/Br can reach up to 3.5 M with minimal heating, therefore higher energy density (above 50 Wh/kg) could be expected with higher concentration V/Br.

AB - This paper reports the use of bromine complexing agent in V/Br redox flow battery to overcome bromine gas evolution. The performance of these complexing agents are investigated in a static flow cell. The result shows it could deliver energy density of approx. 46 Wh/kg using 2 M V+3.5 in 8 M HBr and 2 M HCl in mixtures of bromine complexing agents comprising N-ethyl-N-methyl pyrolidinium bromide (MEP) and N-ethyl-N-methyl morpholinium bromide (MEM). The energy density was observed to increase with cycle number due to the increased utilization of bromide ions. Since the solubility of V/Br can reach up to 3.5 M with minimal heating, therefore higher energy density (above 50 Wh/kg) could be expected with higher concentration V/Br.

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M3 - Conference contribution

AN - SCOPUS:84871779167

SN - 9780816910731

T3 - AIChE Annual Meeting, Conference Proceedings

BT - AIChE 2012 - 2012 AIChE Annual Meeting, Conference Proceedings

T2 - 2012 AIChE Annual Meeting, AIChE 2012

Y2 - 28 October 2012 through 2 November 2012

ER -

Novel high energy density vanadium bromide/polyhalide redox flow battery

Abstract

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Conference

ASJC Scopus Subject Areas

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