In-situ investigation of vanadium ion transport in redox flow battery

Qingtao Luo; Liyu Li; Zimin Nie; Wei Wang; Xiaoliang Wei; Bin Li; Baowei Chen; Zhenguo Yang

doi:10.1016/j.jpowsour.2012.06.066

In-situ investigation of vanadium ion transport in redox flow battery

Qingtao Luo
, Liyu Li
, Zimin Nie
, Wei Wang
, Xiaoliang Wei
, Bin Li
, Baowei Chen
, Zhenguo Yang

Energy & Environmental Science & Technology

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

89 Scopus citations

Abstract

Flow batteries with vanadium and iron redox couples as the electroactive species are employed to investigate the transport behavior of vanadium ions in the presence of an electric field. It is shown that the electric field accelerated the positive-to-negative and reduced the negative-to-positive transport of vanadium ions in the charging process and affected the vanadium ion transport in the opposite way during discharge. In addition, a method is designed to differentiate the concentration-gradient-driven vanadium ion diffusion and electric-field-driven vanadium ion migration. A simplified mathematical model is established to simulate the vanadium ion transport in real charge-discharge operation of the flow battery. The concentration gradient diffusion coefficients and electric-migration coefficients of V ²⁺, V ³⁺, VO ²⁺, and VO ₂ ⁺ across a NAFION ^® membrane are obtained by fitting the experimental data.

Original language	English
Pages (from-to)	15-20
Number of pages	6
Journal	Journal of Power Sources
Volume	218
DOIs	https://doi.org/10.1016/j.jpowsour.2012.06.066
State	Published - Nov 15 2012

Keywords

Diffusion
Migration
Redox flow battery
Transport
Vanadium

Access to Document

10.1016/j.jpowsour.2012.06.066

Cite this

@article{0f6d1ea0e6b84aa9a9155a4d8d63c938,

title = "In-situ investigation of vanadium ion transport in redox flow battery",

abstract = "Flow batteries with vanadium and iron redox couples as the electroactive species are employed to investigate the transport behavior of vanadium ions in the presence of an electric field. It is shown that the electric field accelerated the positive-to-negative and reduced the negative-to-positive transport of vanadium ions in the charging process and affected the vanadium ion transport in the opposite way during discharge. In addition, a method is designed to differentiate the concentration-gradient-driven vanadium ion diffusion and electric-field-driven vanadium ion migration. A simplified mathematical model is established to simulate the vanadium ion transport in real charge-discharge operation of the flow battery. The concentration gradient diffusion coefficients and electric-migration coefficients of V 2+, V 3+, VO 2+, and VO 2 + across a NAFION {\textregistered} membrane are obtained by fitting the experimental data.",

keywords = "Diffusion, Migration, Redox flow battery, Transport, Vanadium",

author = "Qingtao Luo and Liyu Li and Zimin Nie and Wei Wang and Xiaoliang Wei and Bin Li and Baowei Chen and Zhenguo Yang",

note = "Funding Information: The authors would like to acknowledge financial support from the U.S. Department of Energy{\textquoteright}s (DOE{\textquoteright}s) Office of Electricity Delivery \& Energy Reliability (OE) (under Contract No. 57558). We are also grateful for useful discussions with Dr. Imre Gyuk of the DOE-OE Grid Storage Program. Pacific Northwest National Laboratory is a multi-program national laboratory operated by Battelle for DOE under Contract DE-AC05-76RL01830. ",

year = "2012",

month = nov,

day = "15",

doi = "10.1016/j.jpowsour.2012.06.066",

language = "English",

volume = "218",

pages = "15--20",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - In-situ investigation of vanadium ion transport in redox flow battery

AU - Luo, Qingtao

AU - Li, Liyu

AU - Nie, Zimin

AU - Wang, Wei

AU - Wei, Xiaoliang

AU - Li, Bin

AU - Chen, Baowei

AU - Yang, Zhenguo

N1 - Funding Information: The authors would like to acknowledge financial support from the U.S. Department of Energy’s (DOE’s) Office of Electricity Delivery & Energy Reliability (OE) (under Contract No. 57558). We are also grateful for useful discussions with Dr. Imre Gyuk of the DOE-OE Grid Storage Program. Pacific Northwest National Laboratory is a multi-program national laboratory operated by Battelle for DOE under Contract DE-AC05-76RL01830.

PY - 2012/11/15

Y1 - 2012/11/15

N2 - Flow batteries with vanadium and iron redox couples as the electroactive species are employed to investigate the transport behavior of vanadium ions in the presence of an electric field. It is shown that the electric field accelerated the positive-to-negative and reduced the negative-to-positive transport of vanadium ions in the charging process and affected the vanadium ion transport in the opposite way during discharge. In addition, a method is designed to differentiate the concentration-gradient-driven vanadium ion diffusion and electric-field-driven vanadium ion migration. A simplified mathematical model is established to simulate the vanadium ion transport in real charge-discharge operation of the flow battery. The concentration gradient diffusion coefficients and electric-migration coefficients of V 2+, V 3+, VO 2+, and VO 2 + across a NAFION ® membrane are obtained by fitting the experimental data.

AB - Flow batteries with vanadium and iron redox couples as the electroactive species are employed to investigate the transport behavior of vanadium ions in the presence of an electric field. It is shown that the electric field accelerated the positive-to-negative and reduced the negative-to-positive transport of vanadium ions in the charging process and affected the vanadium ion transport in the opposite way during discharge. In addition, a method is designed to differentiate the concentration-gradient-driven vanadium ion diffusion and electric-field-driven vanadium ion migration. A simplified mathematical model is established to simulate the vanadium ion transport in real charge-discharge operation of the flow battery. The concentration gradient diffusion coefficients and electric-migration coefficients of V 2+, V 3+, VO 2+, and VO 2 + across a NAFION ® membrane are obtained by fitting the experimental data.

KW - Diffusion

KW - Migration

KW - Redox flow battery

KW - Transport

KW - Vanadium

UR - https://www.scopus.com/pages/publications/84863739309

U2 - 10.1016/j.jpowsour.2012.06.066

DO - 10.1016/j.jpowsour.2012.06.066

M3 - Article

AN - SCOPUS:84863739309

SN - 0378-7753

VL - 218

SP - 15

EP - 20

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

In-situ investigation of vanadium ion transport in redox flow battery

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this