Optimization of the Lithium Insertion Cell with Silicon Negative Electrode for Automotive Applications
R. Chandrasekaran, and A. Drews
Research and Advanced Engineering
Ford Motor Company
The US Advanced Battery Consortium (USABC) has established goals for long term commercialization of advanced batteries for electric vehicle applications. In this work, a dual lithium-ion insertion cell with silicon as the negative electrode and an intercalation material as the positive electrode is modeled using COMSOL Multiphysics. Both are composite porous electrodes with binder, void ...
F. A. Daniels, D. J. L. Brett, A. R. Kucernak, and C. Attingre
University College London, London, UK
Imperial College London, London, UK
Polymer electrolyte membrane (PEM) fuel cells have significant potential as a source of clean, efficient energy production. This study presents a three-dimensional, non-isothermal, fully-coupled model of a PEM fuel cell with printed circuit board current collectors. The effect of the current collector design on transport phenomena and consequent cell performance is investigated. The model ...
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 ...
Renewable Energy RD Center, Chung-Hsin Electric & Machinery, Taiwan
Proton exchange membrane fuel cells (PEMFCs) were investigated using COMSOL Multiphysics with the AC/DC Module and Chemical Engineering Module. Simulation may be used to increase the performance while decreasing the cost of the catalyst later (CL). Experimental validation of single and multi-layer CL was performed for varied PBI electrolyte content. The validated model was used to investigate ...
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 ...
B. Bozzini, S. Maci, I. Sgura, R. Lo Presti, and E. Simonetti
Dipartimento di Ingegneria dell’Innovazione, Università del Salento, Lecce, Italy
Dipartimento di Matematica, Università del Salento, Lecce, Italy
ENEA Casaccia, Dipartimento TER, Centro Ricerche Casaccia, S. Maria di Galeria, Roma, Italy
This paper describes the numerical modeling of a key material-stability issue within the realm of Molten Carbonate Fuel Cells (MCFC). The model describes the morphological and attending electrocatalytic evolution of porous NiO electrodes and is apt to predict electrochemical observables that can be recorded during Fuel Cell operation. The model has been validated with original experimental data ...
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 ...
B K SRIHARI, Dr K Nagarajan, Dr B Prabhakar Reddy, P VENKATESH
Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India
In the design of electrorefiner, Working electrode and Counter electrode surface areas are very important. The main aim of this study is to understand the effect of the ratio of Anode to cathode Surface areas in an electrorefining cell. Application of this model to design electrorefiner for metallic spent nuclear fuel is discussed with respect to Uranium recovery. Shaping of real anode surface ...
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. Hackert, G. Meichsner, and A. Schubert
Chair Micromanufacturing Technology, Faculty of Mechanical Engineering, Chemnitz University of Technology, Chemnitz, Germany
Fraunhofer Institute for Machine Tools and Forming Technology, Chemnitz, Germany
Jet Electrochemical Machining (Jet-ECM) is an unconventional procedure using localized anodic dissolution for micromachining. An increasing of the electrolyte temperature will lead to an increase of the electrical conductivity of the electrolyte by about 30% and to a reduction of the dynamic viscosity of the electrolyte by about 25 %. Both will improve the process. Therefore a Jet-ECM tool ...