PEM Fuel Cell Impedance at Open Circuit

2016 ◽  
Vol 163 (5) ◽  
pp. F319-F326 ◽  
Author(s):  
A. A. Kulikovsky
Keyword(s):  
Fuel Cell ◽  
Pem Fuel Cell ◽  
Open Circuit ◽  
Cell Impedance

scholarly journals Correction: Nafion film transport properties in a low-Pt PEM fuel cell: impedance spectroscopy study

RSC Advances ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 6764-6765
Author(s):  
Tatyana Reshetenko ◽  
Andrei Kulikovsky
Keyword(s):  
Fuel Cell ◽  
Impedance Spectroscopy ◽  
Transport Properties ◽  
Pem Fuel Cell ◽  
Spectroscopy Study ◽  
Cell Impedance ◽  
Impedance Spectroscopy Study ◽  
Nafion Film

Correction for ‘Nafion film transport properties in a low-Pt PEM fuel cell: impedance spectroscopy study’ by Tatyana Reshetenko et al., RSC Adv., 2019, 9, 38797–38806, DOI: 10.1039/C9RA07794D.

A mechanochemically synthesized covalent organic framework as a proton-conducting solid electrolyte

2016 ◽  
Vol 4 (7) ◽  
pp. 2682-2690 ◽  
Author(s):  
Digambar Balaji Shinde ◽  
Harshitha Barike Aiyappa ◽  
Mohitosh Bhadra ◽  
Bishnu P. Biswal ◽  
Pritish Wadge ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Electrolyte ◽  
Open Circuit Voltage ◽  
Pem Fuel Cell ◽  
Open Circuit ◽  
High Proton Conductivity ◽  
Covalent Organic Framework ◽  
High Proton ◽  
Improved Performance ◽  
Organic Framework

Mechanochemically synthesized bipyridine based covalent organic framework showing high proton conductivity of 0.014 S cm−1 with improved performance over the solvothermal one giving a stable Open Circuit Voltage (0.93 V at 50 °C) on fabrication in PEM fuel cell.

PEM fuel cell open circuit voltage (OCV) in the temperature range of 23°C to 120°C

2006 ◽  
Vol 163 (1) ◽  
pp. 532-537 ◽  
Author(s):  
Jianlu Zhang ◽  
Yanghua Tang ◽  
Chaojie Song ◽  
Jiujun Zhang ◽  
Haijiang Wang
Keyword(s):  
Fuel Cell ◽  
Open Circuit Voltage ◽  
Pem Fuel Cell ◽  
Open Circuit ◽  
Temperature Range

scholarly journals A semiempirical dynamic model of reversible open circuit voltage drop in a PEM fuel cell

2018 ◽  
Vol 43 (7) ◽  
pp. 2550-2561 ◽  
Author(s):  
Zunyan Hu ◽  
Liangfei Xu ◽  
Ziyou Song ◽  
Jianqiu Li ◽  
Minggao Ouyang
Keyword(s):  
Fuel Cell ◽  
Dynamic Model ◽  
Open Circuit Voltage ◽  
Voltage Drop ◽  
Pem Fuel Cell ◽  
Open Circuit

An Efficient Approximation Method for an Individual Fuel Cell Impedance Characterization

2010 ◽  
Author(s):  
Taehee Han ◽  
Tessa A. Haagenson ◽  
Hossein Salehfar ◽  
Samir Dahal ◽  
Mike D. Mann
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Individual Cell ◽  
Cell Voltage ◽  
Pem Fuel Cell ◽  
Proton Exchange ◽  
Operating Conditions ◽  
Experimental Result ◽  
Pure Hydrogen ◽  
Cell Impedance

In this study, an efficient method of approximating individual fuel cell impedances in a stack is proposed and experimentally verified. Two different proton exchange membrane (PEM) fuel cell stacks (600 W with 24 cells and 1.2 kW with 47 cells) were used to develop and verify the method. Both PEM fuel cell stacks were operated using room air and pure hydrogen (99.999%). Impedance and current - voltage (I-V) data were collected for stack and individual cell levels under various operating conditions. The experimental result shows that the individual cell impedance is directly proportional to the corresponding cell voltage. Therefore individual cell impedance can be accurately estimated by performing only stack impedance and individual cell voltage measurements.

scholarly journals Effects of 1, 2, 4-Triazole Additive on PEM Fuel Cell Conditioning

Membranes ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 301
Author(s):  
Nana Zhao ◽  
Zhiqing Shi ◽  
Régis Chenitz ◽  
François Girard ◽  
Asmae Mokrini
Keyword(s):  
Fuel Cell ◽  
Mass Production ◽  
Electrochemical Impedance ◽  
Low Cost ◽  
Pem Fuel Cell ◽  
Open Circuit ◽  
Melt Processing ◽  
Constant Current ◽  
Melt Blowing ◽  
Catalyst Layers

Melt processing is one of the essential technologies for the mass production of polymer electrolyte membranes (PEM) at low cost. Azoles have been widely used in PEM to improve their conductivity at a relatively low humidity and recently as bifunctional additives in a melt blowing processing for PEM mass production. In this work, we attempted to assess the effect of 1, 2, 4-triazole additive in membranes and in catalyst layers on PEM fuel cell conditioning. Various characterization tools including electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and conditioning with constant current were applied to diagnose the temporary electrochemical reaction effect and the permanent performance loss caused by the triazole additives. It was found that triazole additives in membranes could migrate into the catalyst layers and significantly affect the open circuit voltage (OCV) and the conditioning. The effect could be partially or completely removed/cleaned either through longer conditioning time or via CV cycling, which depends on the amount of additives remaining in the membrane. The findings provide valuable scientific insights on the relevance of post treatment steps during membrane production and overcoming fuel cell contamination issues due to residual additive in the membranes and understanding the quality control needed for fuel cell membranes by melt blowing processing.

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