Analysis of impedance with different discharge current in proton exchange membrane fuel cell

Dehua Shang, Bin Ma, Guangsheng Zhang, Liejin Guo, Hongtan Liu

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Considering the fact that proton exchange membrane (PEM) fuel cell has different impedance performances under different discharge currents, a PEM fuel cell with single serpentine flow field was investigated with electrochemical impedance spectroscopy, and the R (QR) equivalent circuit was used to calculate the circuit element parameters. The experimental results show that water in the fuel cell increases from insufficient to sufficient and then excessive with the increasing discharge current. Accordingly, the electrochemical reaction rate on the electrodes increases first and then decreases, thus the charge transfer resistance decreases and then increases. The impedance of PEM fuel cell increases obviously for high discharge currents due to the accessional impedance produced by double-layer effect, while the impedance reaches minimum at medium discharge current (5 A).

Original languageEnglish
Pages (from-to)622-625
Number of pages4
JournalHsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University
Volume42
Issue number5
StatePublished - May 1 2008

Fingerprint

Proton exchange membrane fuel cells (PEMFC)
Electrochemical impedance spectroscopy
Equivalent circuits
Reaction rates
Charge transfer
Fuel cells
Flow fields
Electrodes
Networks (circuits)
Water

Keywords

  • Electrochemical impedance spectroscopy
  • Fuel cell
  • Proton exchange membrane

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Analysis of impedance with different discharge current in proton exchange membrane fuel cell. / Shang, Dehua; Ma, Bin; Zhang, Guangsheng; Guo, Liejin; Liu, Hongtan.

In: Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University, Vol. 42, No. 5, 01.05.2008, p. 622-625.

Research output: Contribution to journalArticle

@article{fd4dd36981764e3d8b185929195e12a3,
title = "Analysis of impedance with different discharge current in proton exchange membrane fuel cell",
abstract = "Considering the fact that proton exchange membrane (PEM) fuel cell has different impedance performances under different discharge currents, a PEM fuel cell with single serpentine flow field was investigated with electrochemical impedance spectroscopy, and the R (QR) equivalent circuit was used to calculate the circuit element parameters. The experimental results show that water in the fuel cell increases from insufficient to sufficient and then excessive with the increasing discharge current. Accordingly, the electrochemical reaction rate on the electrodes increases first and then decreases, thus the charge transfer resistance decreases and then increases. The impedance of PEM fuel cell increases obviously for high discharge currents due to the accessional impedance produced by double-layer effect, while the impedance reaches minimum at medium discharge current (5 A).",
keywords = "Electrochemical impedance spectroscopy, Fuel cell, Proton exchange membrane",
author = "Dehua Shang and Bin Ma and Guangsheng Zhang and Liejin Guo and Hongtan Liu",
year = "2008",
month = "5",
day = "1",
language = "English",
volume = "42",
pages = "622--625",
journal = "Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University",
issn = "0253-987X",
publisher = "Xi'an Jiaotong University",
number = "5",

}

TY - JOUR

T1 - Analysis of impedance with different discharge current in proton exchange membrane fuel cell

AU - Shang, Dehua

AU - Ma, Bin

AU - Zhang, Guangsheng

AU - Guo, Liejin

AU - Liu, Hongtan

PY - 2008/5/1

Y1 - 2008/5/1

N2 - Considering the fact that proton exchange membrane (PEM) fuel cell has different impedance performances under different discharge currents, a PEM fuel cell with single serpentine flow field was investigated with electrochemical impedance spectroscopy, and the R (QR) equivalent circuit was used to calculate the circuit element parameters. The experimental results show that water in the fuel cell increases from insufficient to sufficient and then excessive with the increasing discharge current. Accordingly, the electrochemical reaction rate on the electrodes increases first and then decreases, thus the charge transfer resistance decreases and then increases. The impedance of PEM fuel cell increases obviously for high discharge currents due to the accessional impedance produced by double-layer effect, while the impedance reaches minimum at medium discharge current (5 A).

AB - Considering the fact that proton exchange membrane (PEM) fuel cell has different impedance performances under different discharge currents, a PEM fuel cell with single serpentine flow field was investigated with electrochemical impedance spectroscopy, and the R (QR) equivalent circuit was used to calculate the circuit element parameters. The experimental results show that water in the fuel cell increases from insufficient to sufficient and then excessive with the increasing discharge current. Accordingly, the electrochemical reaction rate on the electrodes increases first and then decreases, thus the charge transfer resistance decreases and then increases. The impedance of PEM fuel cell increases obviously for high discharge currents due to the accessional impedance produced by double-layer effect, while the impedance reaches minimum at medium discharge current (5 A).

KW - Electrochemical impedance spectroscopy

KW - Fuel cell

KW - Proton exchange membrane

UR - http://www.scopus.com/inward/record.url?scp=44849097738&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=44849097738&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:44849097738

VL - 42

SP - 622

EP - 625

JO - Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University

JF - Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University

SN - 0253-987X

IS - 5

ER -