Searched for: subject%3A%22Cell%255C%252BBE%22
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Aravind, P.V. (author), Ouweltjes, J.P. (author), Schoonman, J. (author)
Electrochemical impedance measurements were carried out on symmetrical nickel/gadolinia-doped ceria test cells. For H2, N2, and H2O mixtures, the diffusion length obtained based on the impedance measurements is on the order of centimeters. This high value of the diffusion length is attributed to the flow field in the reactor. It is suggested...
journal article 2009
document
Van der Ven, A. (author), Garikipati, K. (author), Kim, S. (author), Wagemaker, M. (author)
We investigate the role of coherency strains on the thermodynamics of two-phase coexistence during Li (de)intercalation of LixFePO4. We explicitly account for the anisotropy of the elastic moduli and analytically derive coupled chemical and mechanical equilibrium criteria for two-phase morphologies observed experimentally. Coherent two-phase...
journal article 2009
document
Aravind, P.V. (author), Ouweltjes, J.P. (author), Woudstra, N. (author), Rietveld, G. (author)
The impact of biomass-derived contaminants on solid-oxide fuel cells (SOFCs) with Ni/gadolinia-doped ceria (GDC) anodes was investigated using electrochemical impedance analysis. Measurements were carried out with symmetric test cells under a single-gas atmosphere. The impact of H2S, HCl, and naphthalene in the gas stream on the performance of...
journal article 2007
document
Huang, R.W.J.M. (author), Chung, F. (author), Kelder, E.M. (author)
We present a semimathematical model for the simulation of the impedance spectra of a rechargeable lithium batteries consisting of porous electrodes with spherical Li+ intercalation particles. The particles are considered to have two distinct homogeneous phases as a result of the intercalation and deintercalation of Li+ during charge and...
journal article 2006
Searched for: subject%3A%22Cell%255C%252BBE%22
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