T
T. E. Springer
Researcher at Los Alamos National Laboratory
Publications - 29
Citations - 8802
T. E. Springer is an academic researcher from Los Alamos National Laboratory. The author has contributed to research in topics: Electrolyte & Membrane. The author has an hindex of 18, co-authored 29 publications receiving 8321 citations.
Papers
More filters
Journal ArticleDOI
Polymer Electrolyte Fuel Cell Model
TL;DR: In this paper, an isothermal, one-dimensional, steady-state model for a complete polymer electrolyte fuel cell (PEFC) with a 117 Nation | membrane is presented, which predicts an increase in membrane resistance with increased current density and demonstrates the great advantage of a thinner membrane in alleviating this resistance problem.
Journal ArticleDOI
Water Uptake by and Transport Through Nafion® 117 Membranes
Thomas A. Zawodzinski,C. R. Derouin,Susan D. Radzinski,Ruth J. Sherman,Van T. Smith,T. E. Springer,Shimshon Gottesfeld +6 more
TL;DR: In this article, the diffusion coefficient and relaxation time of water in the membrane and the protonic conductivity of the membrane as functions of membrane water content were measured, and the ratio of water molecules carried across the membrane per proton transported, the electro-osmotic drag coefficient, was determined for a limited number of water contents.
Journal ArticleDOI
Characterization of polymer electrolyte fuel cells using ac impedance spectroscopy
TL;DR: In this paper, the ac impedance spectra of polymer electrolyte fuel cell (PEFC) cathodes measured under various experimental conditions are analyzed and compared by simultaneous least squares fitting of a set of spectra measured for several cathode potentials.
Journal ArticleDOI
A Comparative Study of Water Uptake By and Transport Through Ionomeric Fuel Cell Membranes
Thomas A. Zawodzinski,T. E. Springer,John Davey,Roger Jestel,Cruz Lopez,Judith Valerio,Shimshon Gottesfeld +6 more
TL;DR: In this article, water uptake and transport parameters measured at 30 C for several available perfluorosulfonic acid membranes are compared and water sorption characteristics, diffusion coefficient of water, electroosmotic drag, and protonic conductivity were determined for Nafion 117, Membrane C, and Dow XUS 13204.10 developmental fuel cell membrane.
Journal ArticleDOI
Modeling and Experimental Diagnostics in Polymer Electrolyte Fuel Cells
TL;DR: In this paper, the authors present a fit between model and experiment for well-humidified polymer electrolyte fuel cells operated to maximum current density with a range of cathode gas compositions.