Current distribution measurements in PEFC having net flow geometry

Matti Noponen; Jari Ihonen; Anders Lundblad; Göran Lindbergh

doi:10.1023/B:JACH.0000015616.92074.5d

Current distribution measurements in PEFC having net flow geometry

Matti Noponen, Jari Ihonen, Anders Lundblad, Göran Lindbergh

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49 Citations (Scopus)

Abstract

A measurement system for current distribution mapping for a PEFC has been developed. The segmented anode is constructed so as to have high thermal conductivity in order to prevent the formation of large temperature gradients between the electrodes. The construction is therefore feasible for use at high current densities. Both segmented and unsegmented gas diffusion layers are used. The effect of inlet humidification and gas composition at the cathode side is studied. In addition, two different flow geometries are studied. The results show that the measurement system is able to distinguish between current distribution originating from differences in proton conductivity, species concentration and gas diffusion layer properties.

Original language	English
Pages (from-to)	255 - 262
Number of pages	8
Journal	Journal of Applied Electrochemistry
Volume	34
Issue number	3
DOIs	https://doi.org/10.1023/B:JACH.0000015616.92074.5d
Publication status	Published - 2004
MoE publication type	A1 Journal article-refereed

Keywords

current distribution
PEMFC
PEM fuel cell
fuel cells
net flow geometry
segmented current collector

UN SDGs

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

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10.1023/B:JACH.0000015616.92074.5d

Cite this

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abstract = "A measurement system for current distribution mapping for a PEFC has been developed. The segmented anode is constructed so as to have high thermal conductivity in order to prevent the formation of large temperature gradients between the electrodes. The construction is therefore feasible for use at high current densities. Both segmented and unsegmented gas diffusion layers are used. The effect of inlet humidification and gas composition at the cathode side is studied. In addition, two different flow geometries are studied. The results show that the measurement system is able to distinguish between current distribution originating from differences in proton conductivity, species concentration and gas diffusion layer properties.",

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T1 - Current distribution measurements in PEFC having net flow geometry

AU - Noponen, Matti

AU - Ihonen, Jari

AU - Lundblad, Anders

AU - Lindbergh, Göran

PY - 2004

Y1 - 2004

N2 - A measurement system for current distribution mapping for a PEFC has been developed. The segmented anode is constructed so as to have high thermal conductivity in order to prevent the formation of large temperature gradients between the electrodes. The construction is therefore feasible for use at high current densities. Both segmented and unsegmented gas diffusion layers are used. The effect of inlet humidification and gas composition at the cathode side is studied. In addition, two different flow geometries are studied. The results show that the measurement system is able to distinguish between current distribution originating from differences in proton conductivity, species concentration and gas diffusion layer properties.

AB - A measurement system for current distribution mapping for a PEFC has been developed. The segmented anode is constructed so as to have high thermal conductivity in order to prevent the formation of large temperature gradients between the electrodes. The construction is therefore feasible for use at high current densities. Both segmented and unsegmented gas diffusion layers are used. The effect of inlet humidification and gas composition at the cathode side is studied. In addition, two different flow geometries are studied. The results show that the measurement system is able to distinguish between current distribution originating from differences in proton conductivity, species concentration and gas diffusion layer properties.

KW - current distribution

KW - PEMFC

KW - PEM fuel cell

KW - fuel cells

KW - net flow geometry

KW - segmented current collector

U2 - 10.1023/B:JACH.0000015616.92074.5d

DO - 10.1023/B:JACH.0000015616.92074.5d

M3 - Article

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VL - 34

SP - 255

EP - 262

JO - Journal of Applied Electrochemistry

JF - Journal of Applied Electrochemistry

IS - 3

ER -

Current distribution measurements in PEFC having net flow geometry

Abstract

Keywords

UN SDGs

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