Electrochemical parameter estimation in operating proton exchange membrane fuel cells

Rubio, Miguel A.; Urquía, Alfonso; Kühn, Reimer; Dormido, Sebastián

doi:10.1016/j.jpowsour.2008.05.011

Cited by 37 publications

(44 citation statements)

References 29 publications

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“…This assumption may be supported by the development of a mechanistic model, which results in a similar EEC [39], but cannot overcome the problem of multiple fitting solutions. Sometimes, the hydrogen oxidation reaction at the anode is considered orders of magnitude faster compared to the oxygen reduction reaction at the cathode and therefore neglected [40]. The capacitance then embodies the double layer capacitance at the electrode interface, where the resistance represents the charge transfer resistance.…”

Section: Model Supported Analysismentioning

confidence: 99%

Model-supported characterization of a PEM water electrolysis cell for the effect of compression

Frensch

Olesen

Araya

et al. 2018

Electrochimica Acta

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This paper investigates the influence of the cell compression of a PEM water electrolysis cell. A small single cell is therefore electrochemically analyzed by means of polarization behavior and impedance spectroscopy throughout a range of currents (0.01 A cm −2 to 2.0 A cm −2 ) at two temperatures (60• C and 80• C) and eight compressions (0.77 MPa to 3.45 MPa). Additionally, a computational model is utilized to support the analysis. The main findings are that cell compression has a positive effect on overall cell performance due to decreased contact resistances, but is subject to optimization. In this case, no signs of severe mass transport problems due to crushed transport layers are visible in either polarization curves or impedance plots, even at high currents. However, a Tafel plot analysis revealed more than one slope throughout the current range. The change in the Tafel slope is therefore discussed and connected to the electrochemical reaction or an ohmic contribution from a non-electrode component.

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Section: Model Supported Analysismentioning

confidence: 99%

Model-supported characterization of a PEM water electrolysis cell for the effect of compression

Frensch

Olesen

Araya

et al. 2018

Electrochimica Acta

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“…tance, charge transfer resistance, diffusion related time constant and membrane resistance (i.e. impedance) [129,130]. It was found a correlation between the cathode flooding phenomenon and the diffusion resistance.…”

Section: Applications Of Prognostics To Pemfcmentioning

confidence: 92%

“…It was also reported that impedance model parameters can be used to diagnose other degradation phenomena such as membrane drying, cathode drying, membrane degradation, 415 and anode poisoning. The current interruption method was shown to be easy to use as an in-situ health monitoring method [129,130]. An implementation of continuous real-time impedance spectroscopy was carried out by Bethoux et al…”

Section: Applications Of Prognostics To Pemfcmentioning

confidence: 99%

A review on prognostics and health monitoring of proton exchange membrane fuel cell

Sutharssan

Montalvão

Chen

et al. 2017

Renewable and Sustainable Energy Reviews

195

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Fuel cell technology can be traced back to 1839 when British scientist Sir William Grove discovered that it was possible to generate electricity by the reaction between hydrogen and oxygen gases. However, fuel cell still cannot compete with internal combustion engines although they have many advantages including zero carbon emissions. Fossil fuels are cheaper and present very high volumetric energy densities compared with the hydrogen gas. Furthermore, hydrogen storage as a liquid is still a huge challenge. Another important disadvantage is the lifespan of the fuel cell because of their durability, reliability and maintainability.Prognostics is an emerging technology in sustainability of engineering systems through failure prevention, reliability assessment and remaining useful lifetime estimation. Prognostics and health monitoring can play a critical role in enhancing the durability, reliability and maintainability of the fuel cell system. This paper presents a review on the current state-of-the-art in prognostics and health monitoring of Proton Exchange Membrane Fuel Cell (PEMFC), aiming at identifying research and development opportunities in these fields. This paper also highlights the importance of incorporating prognostics and failure modes, mechanisms and effects analysis (FMMEA) in PEMFC to give them sustainable * Corresponding author Email address: (tsutharssan@iee.org) (Thamo Sutharssan)Preprint submitted to Renewable & Sustainable Energy Reviews November 14, 2016 competitive advantage when compared with other non-clean energy solutions.

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“…Kim et al [16] analyzed degradation combined with a low-frequency ripple current using an equivalent circuit modeling a PEMFC Although EIS is generally used for evaluations in the laboratory and requires commercial electrochemical instruments, a number of techniques that enable on-board analysis of operating fuel cells have been developed. Rubio et al [17] proposed a method for EIS analysis of a PEMFC with inexpensive equipment. This method makes use of small changes in the load resistance that produces pseudo-random binary sequences.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Electrochemical Impedance Diagnosis for Fuel Cells Using a DC–DC Converter

Katayama

Kogoshi

2015

IEEE Trans. Energy Convers.

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A multiport bidirectional dc-dc converter with a diagnosis function for fuel cells that employs electrochemical impedance analysis was developed. The proposed converter, which is connected to electric double layer capacitors, can freely adjust the fuel cell voltage without fluctuation of the load voltage. A signal that consists of multiple frequency sinusoidal waves is superimposed as a duty ratio signal of the chopper circuit connected to the fuel cell, which enables simultaneous impedance measurement for these frequencies. The voltage and current values of the fuel cell are acquired by a digital signal processor to conduct fast Fourier transform calculations that give voltage and current spectra. The fraction of the spectra yields the electrochemical impedance. Experiments were conducted to validate the proposed method using a polymer electrolyte membrane fuel cell. The sinusoidal waves in the imposed signal have multiple frequencies to reduce the measuring time. The impedance characteristics determined using the proposed method are in good agreement with those obtained with an electrochemical instrument. To demonstrate the proposed method, the Nyquist plots when the fuel cell current, the operation temperature, and the stoichiometric ratios were changed and produced using the proposed method.Index Terms-DC-DC converter, digital signal processor, electric double layer capacitor, electrochemical impedance analysis, fuel cell.

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Electrochemical parameter estimation in operating proton exchange membrane fuel cells

Cited by 37 publications

References 29 publications

Model-supported characterization of a PEM water electrolysis cell for the effect of compression

Model-supported characterization of a PEM water electrolysis cell for the effect of compression

A review on prognostics and health monitoring of proton exchange membrane fuel cell

Real-Time Electrochemical Impedance Diagnosis for Fuel Cells Using a DC–DC Converter

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