An activation procedure applied to fluorinated and non-fluorinated proton exchange membranes

Silva, Valter; Rouboa, Abel

doi:10.1016/j.fuproc.2011.12.042

Cited by 13 publications

(4 citation statements)

References 34 publications

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“…Silva et al observed variable break-in kinetics depending on membrane type and thickness [32]. More specifically, material characteristics like equivalent weight, side chain length, crystallinity, scavengers and reinforcements all affect the membrane morphological changes during activation [11].…”

Section: Impact Of Pemfc Characteristics On Benchmarking Resultsmentioning

confidence: 99%

“…Source du renvoi introuvable. displays variable membrane pretreatment method (boiling) efficiency, dependent on the type of membrane [32]. [32] The BP surface roughness affects the resistive contact with the GDLs [50], and therefore the compression break-in cycle efficiency.…”

Section: Impact Of Pemfc Characteristics On Benchmarking Resultsmentioning

confidence: 99%

“…displays variable membrane pretreatment method (boiling) efficiency, dependent on the type of membrane [32]. [32] The BP surface roughness affects the resistive contact with the GDLs [50], and therefore the compression break-in cycle efficiency. The flow field layout (serpentine, parallel..) has also proven to influence break-in performance [88].…”

Section: Impact Of Pemfc Characteristics On Benchmarking Resultsmentioning

confidence: 99%

“…Other aspects such as the impact of activation protocols on stack durability [30] or the effects of stack specifications on its activation kinetics [31], [32] also deserve more attention.…”

mentioning

confidence: 99%

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A review on the Proton-Exchange Membrane Fuel Cell break-in physical principles, activation procedures, and characterization methods

Linden

Pahon

Morando

et al. 2023

Journal of Power Sources

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Section: Impact Of Pemfc Characteristics On Benchmarking Resultsmentioning

confidence: 99%

Section: Impact Of Pemfc Characteristics On Benchmarking Resultsmentioning

confidence: 99%

Section: Impact Of Pemfc Characteristics On Benchmarking Resultsmentioning

confidence: 99%

“…Other aspects such as the impact of activation protocols on stack durability [30] or the effects of stack specifications on its activation kinetics [31], [32] also deserve more attention.…”

mentioning

confidence: 99%

See 2 more Smart Citations

A review on the Proton-Exchange Membrane Fuel Cell break-in physical principles, activation procedures, and characterization methods

Linden

Pahon

Morando

et al. 2023

Journal of Power Sources

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Fundamental and Practical Aspects of Break‐In/Conditioning of Proton Exchange Membrane Fuel Cells

Kostelec,

Gatalo,

Hodnik

2024

The Chemical Record

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Proton exchange membrane fuel cells (PEMFCs) have proven to be a promising power source for various applications ranging from portable devices to automotive and stationary power systems. The production of PEMFC involves numerous stages in the value chain, with each stage presenting unique challenges and opportunities to improve the overall performance and durability of the PEMFC stack. These include steps such as manufacturing the key components such as the platinum‐based catalyst, processing these components into the membrane electrode assemblies (MEAs), and stacking the MEAs to ultimately produce a PEMFC stack. However, it is also known that the break‐in or conditioning phase of the stack plays a crucial role in the final performance as well as durability. It involves several key phenomena such as hydration of the membrane, swelling of the ionomer, redistribution of the catalyst and the creation of suitable electrochemical interfaces – establishment of the triple phase boundary. These improve the proton conductivity, the mass transport of reactants and products, the catalytic activity of the electrode and thus the overall efficiency of the FC. The cruciality of break‐in is demonstrated by the improvement in performance, which can even be over 50 % compared to the initial state. The state‐of‐the‐art approach for the break‐in of MEAs involves an electrochemical protocol, such as voltage cycling, using a PEMFC testing station. This method is time‐consuming, equipment‐intensive, and costly. Therefore, new, elegant, and cost‐effective solutions are needed. Nevertheless, the primary aim is to achieve maximum/optimal performance so that it is fully operational and ready for the market. It is therefore essential to better understand and deconvolute these complex mechanisms taking place during break‐in/conditioning. Strategies include controlled humidity and temperature cycling, novel electrode materials and other advanced break‐in methods such as air braking, vacuum activation or steaming. In addition, it is critical to address the challenges associated with standardisation and quantification of protocols to enable interlaboratory comparisons to further advance the field.

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A gradient activation method for direct methanol fuel cells

Liu

Zhou

Halim

et al. 2017

Energy Conversion and Management

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An activation procedure applied to fluorinated and non-fluorinated proton exchange membranes

Cited by 13 publications

References 34 publications

A review on the Proton-Exchange Membrane Fuel Cell break-in physical principles, activation procedures, and characterization methods

A review on the Proton-Exchange Membrane Fuel Cell break-in physical principles, activation procedures, and characterization methods

Fundamental and Practical Aspects of Break‐In/Conditioning of Proton Exchange Membrane Fuel Cells

A gradient activation method for direct methanol fuel cells

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