Degradation measurement and analysis for cells and stacks

Gemmen, Randall; Williams, Mark C.; Gerdes, Kirk

doi:10.1016/j.jpowsour.2008.06.047

Cited by 79 publications

(72 citation statements)

References 23 publications

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“…After those experiments, it is concluded that after the initial conditioning of the cell, and for a period of above 1000 hours under operation conditions, it was not possible no quantify any degradation [39]. Those results confirm that the studied cells are suitable to be integrated for mSOFC portable devices.…”

Section: Microstructural Characterizationmentioning

confidence: 67%

Highly stable microtubular cells for portable solid oxide fuel cell applications

Monzón

Laguna‐Bercero

2016

Electrochimica Acta

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Section: Microstructural Characterizationmentioning

confidence: 67%

Highly stable microtubular cells for portable solid oxide fuel cell applications

Monzón

Laguna‐Bercero

2016

Electrochimica Acta

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“…10 The important factor to remember about various polarization components is that they are not independent of each other.…”

Section: Ohmic (Resistance) Polarizationmentioning

confidence: 99%

Modeling Degradation in Solid Oxide Electrolysis Cells

Sohal¹,

Virkar²,

Rashkeev³

et al. 2010

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“…where E = either open circuit voltage potential (E OCV ) or the ideal Nernst potential (E N ), depending on whether one wants to (1) remove loss effects due to reactant leakage and variable reactant mixture supply and if one is focused on the cell material performance, or (2) focus on total cell performance (cell material and seals) (Gemmen et al 2008). …”

Section: Polarization Lossesmentioning

confidence: 99%

Long-Term Degradation Testing of High-Temperature Electrolytic Cells

Stoots¹,

O’Brien²,

Herring³

et al. 2009

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The Idaho National Laboratory (INL) has been researching the application of solid-oxide electrolysis cell for large-scale hydrogen production from steam over a temperature range of 800 to 900ºC. The INL has been testing various solid oxide cell designs to characterize their electrolytic performance operating in the electrolysis mode for hydrogen production. Some results presented in this report were obtained from cells, with an active area of 16 cm 2 per cell. The electrolysis cells are electrode-supported, with ~10 μm thick yttria-stabilized zirconia (YSZ) electrolytes, ~1400 μm thick nickel-YSZ steam-hydrogen electrodes, and manganite (LSM) air-oxygen electrodes. The experiments were performed over a range of steam inlet mole fractions (0.1 to 0.6), gas flow rates, and current densities (0 to 0.6 A/cm 2 ). Steam consumption rates associated with electrolysis were measured directly using inlet and outlet dewpoint instrumentation. On a molar basis, the steam consumption rate is equal to the hydrogen production rate. Cell performance was evaluated by performing DC potential sweeps at 800, 850, and 900°C. The voltage-current characteristics are presented, along with values of area-specific resistance as a function of current density. Long-term cell performance is also assessed to evaluate cell degradation. Details of the custom single-cell test apparatus developed for these experiments are also presented.NASA, in conjunction with the University of Toledo, has developed a new cell concept with the goals of reduced weight and high power density. This report presents results of the INL's testing of this new solid oxide cell design as an electrolyzer. Gas composition, operating voltage, and other parameters were varied during testing. Results to date show the NASA cell to be a promising design for both high power-to-weight fuel cell and electrolyzer applications. TABLES

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Degradation measurement and analysis for cells and stacks

Cited by 79 publications

References 23 publications

Highly stable microtubular cells for portable solid oxide fuel cell applications

Highly stable microtubular cells for portable solid oxide fuel cell applications

Modeling Degradation in Solid Oxide Electrolysis Cells

Long-Term Degradation Testing of High-Temperature Electrolytic Cells

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