A. Nyman, M. Behm, and G. Lindbergh
Applied Electrochemistry, School of Chemical Science and Engineering, Royal Institute of Technology Stockholm, Sweden
Modeling of mass transport is an important step in evaluating lithium-ion battery electrolytes and understanding cell performance. For high-power applications, concentration gradients in the electrolyte lead to limiting currents, which limit the power-density of the battery. The model has been used for determining a complete set of transport and thermodynamic properties for LiPF6 dissolved in an ...
D. Mizuno, Y. Shi, and R. Kelly
University of Virginia
Aluminum alloys 5000 series are widely used within the cabins of ships. These aluminum alloys are often joined via steel bolts. There is thus a concern that galvanic interactions will exacerbate corrosion of the aluminum alloys. In this study, a model of the galvanic corrosion between aluminum alloy AA5083 and steel under atmospheric conditions was built. The Nernst-Plank equation and the ...
Keisoku Engineering System Co., Tokyo, Japan
The tertiary current distributions on the wafer in a plating cell are studied in this work. An acid copper sulfate electrolyte composed of CuSO4/5H2O of 2.4 g/L and H2SO4 of 90 g/L is taken into account for copper deposition on the wafer. The solution of shear-plate agitating fluid dynamics is coupled into the calculation of tertiary current distributions. The obtained distributions of tertiary ...
Computational Modelling of Fluid Dynamics in Electropolishing of Radiofrequency Accelerating Cavities - new
H. Rana, L. Ferreira
Loughborough University, Leicestershire, UK
European Organisation for Nuclear Research (CERN), Genéve, Switzerland
Electropolishing is an electrochemical process that radiofrequency accelerating cavities undergo in order to improve their inner metal surface finishing. This is performed prior to their installation into particle accelerators, in order to enhance their accelerating properties. Using COMSOL Multiphysics® software it was possible to model the process throughout the cavity and study the fluid ...
M. Cugnet ,
 Université Grenoble Alpes INES, Le Bourget du Lac, France
 CEA, LITEN, Grenoble, France
Introduction: Lithium-ion batteries are widely used as power sources for portable electronic devices (laptop, phones, and players) and electric cars due to their high energy density. New applications, such as Formula E, require also a huge power capability that the iron-phosphate-based positive electrode is able to provide. Indeed, a recent publication  shows that, at the particle level (20 ...
J. Bouhattate, X. Feaugas, and S. Frappart
Laboratoire d’Etudes des Matériaux en Milieux Agressifs,
Université de La Rochelle, La Rochelle, France
V&M France, CEV, Aulnoye-Aymeries, France
Hydrogen Embrittlement (HE) is one of the mechanisms responsible for premature failure of structures. In the context of environmental sustainability, it is compelling to improve or conceive new processes and/or new materials capable of reducing fracture induced by HE. We analyzed the influence of the oxide layer on the permeability of hydrogen. This investigation was carried on as a correlative ...
Modeling the Effect of Discrete Distributions of Platinum Particles in the PEM Fuel Cell Catalyst Layer
C.F. Cetinbas, A.K. Prasad, S.G. Advani
Center for Fuel Cell Research, Department of Mechanical Engineering, University of Delaware, Newark, DE, USA
University of Delaware, Newark, DE, USA
In this study, the basic catalyst layer (CL) structure, consisting of carbon-supported Pt particles (C|Pt) and an ionomer binder, is investigated numerically by using COMSOL. The significance of modeling discrete Pt particles on the carbon support is highlighted by comparing the cell performance results to the case in which the Pt is assumed to be distributed uniformly over the carbon support as ...
M. Vallance , A. Meshkov , R. White , M. Guo , S. Rayman , L. Cai 
 GE Global Research, Niskayuna, NY, USA
 R.E. White & Associates, Columbia, SC, USA
Rechargeable batteries solve electrification and communication problems. As examples, hybrid battery-diesel generator power supplies efficiently power cell towers in remote locations, detached from the power grid. Large battery banks are used to load level user power requirements, reducing stress on power generation infrastructure. Batteries firm the output capacity of intermittent wind ...
Department of Chemistry, University of Firenze, Sesto Fiorentino, FI, Italy
Microelectrodes demonstrate that modeling is crucial for understanding the behavior of complex electrochemical systems. The use of the finite element methods in electrochemistry may be of much more general interest for its ability to handle complex geometries. In this context a software such as COMSOL Multiphysics® allows a straightforward way to the set up models including coupling of ...
Kinetic Investigation of a Mechanism for Generating Microstructures on Polycrystalline Substrates Using an Electroplating Process
T. Soares, H. Mozaffari, H. Reinecke
Universität Freiburg, Freiburg im Breisgau, BW, Germany
Hochschule Furtwangen, Tuttlingen, BW, Germany
The purpose of this study is to understand the growth mechanism of copper (Cu) films on a Cu-Zn system substrate with a pre-defined pattern. The pattern was defined by conducting a selective etching process on a two-phase polycrystalline substrate. As a result of this process, there were etched regions correspondent to beta-phase crystals and quasi non-etched regions that belong to alpha-phase ...