Anomalous Behavior of Anion Exchange Membrane during Operation of a Vanadium Redox Flow Battery

Arjun Bhattarai; Adam H. Whitehead; Rüdiger Schweiss; Günther G. Scherer; Maria Skyllas-Kazacos; Nyunt Wai; Tam D. Nguyen; Purna C. Ghimire; Moe Ohnmar Oo; Huey Hoon Hng

doi:10.1021/acsaem.8b01816

Anomalous Behavior of Anion Exchange Membrane during Operation of a Vanadium Redox Flow Battery

Arjun Bhattarai^*, Adam H. Whitehead, Rüdiger Schweiss, Günther G. Scherer, Maria Skyllas-Kazacos, Nyunt Wai, Tam D. Nguyen, Purna C. Ghimire, Moe Ohnmar Oo, Huey Hoon Hng

^*Corresponding author for this work

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

19 Citations (Scopus)

Abstract

Vanadium redox flow batteries (VRFBs) are becoming an integral component of renewable energy solutions, microgrids, and backup storage systems. The reduction in cell resistance due to advancements in the electrode and overall component design allows flow cells to operate at higher current/power densities. During discharging of an experimental flow cell at higher current densities, under certain conditions, an unexpected voltage drop and subsequent recovery were observed. Similar effects of voltage drop and recovery have been observed in NiCd and primary lithium-thionyl chloride (LTC) batteries but have not yet been reported for the VRFB in peer-reviewed publications. This study aims to understand the causes behind the voltage drop effect in a VRFB under high power density operation.

Original language	English
Pages (from-to)	1712-1719
Number of pages	8
Journal	ACS Applied Energy Materials
Volume	2
Issue number	3
DOIs	https://doi.org/10.1021/acsaem.8b01816
Publication status	Published - Mar 25 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019 American Chemical Society.

ASJC Scopus Subject Areas

Chemical Engineering (miscellaneous)
Energy Engineering and Power Technology
Electrochemistry
Materials Chemistry
Electrical and Electronic Engineering

Keywords

anion exchange membrane
power drop effect
segmented cell
vanadium redox flow battery
voltage drop

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/acsaem.8b01816

Cite this

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abstract = "Vanadium redox flow batteries (VRFBs) are becoming an integral component of renewable energy solutions, microgrids, and backup storage systems. The reduction in cell resistance due to advancements in the electrode and overall component design allows flow cells to operate at higher current/power densities. During discharging of an experimental flow cell at higher current densities, under certain conditions, an unexpected voltage drop and subsequent recovery were observed. Similar effects of voltage drop and recovery have been observed in NiCd and primary lithium-thionyl chloride (LTC) batteries but have not yet been reported for the VRFB in peer-reviewed publications. This study aims to understand the causes behind the voltage drop effect in a VRFB under high power density operation.",

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AU - Bhattarai, Arjun

AU - Whitehead, Adam H.

AU - Schweiss, Rüdiger

AU - Scherer, Günther G.

AU - Skyllas-Kazacos, Maria

AU - Wai, Nyunt

AU - Nguyen, Tam D.

AU - Ghimire, Purna C.

AU - Oo, Moe Ohnmar

AU - Hng, Huey Hoon

PY - 2019/3/25

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AB - Vanadium redox flow batteries (VRFBs) are becoming an integral component of renewable energy solutions, microgrids, and backup storage systems. The reduction in cell resistance due to advancements in the electrode and overall component design allows flow cells to operate at higher current/power densities. During discharging of an experimental flow cell at higher current densities, under certain conditions, an unexpected voltage drop and subsequent recovery were observed. Similar effects of voltage drop and recovery have been observed in NiCd and primary lithium-thionyl chloride (LTC) batteries but have not yet been reported for the VRFB in peer-reviewed publications. This study aims to understand the causes behind the voltage drop effect in a VRFB under high power density operation.

KW - anion exchange membrane

KW - power drop effect

KW - segmented cell

KW - vanadium redox flow battery

KW - voltage drop

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Anomalous Behavior of Anion Exchange Membrane during Operation of a Vanadium Redox Flow Battery

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

UN SDGs

Access to Document

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