E. Gongadze, S. Petersen, U. Beck, and U. van Rienen
Institute of General Electrical Engineering, University of Rostock, Rostock, Germany
Institute of Electronic Appliances and Circuits, University of Rostock,
The Electrical Double Layer (EDL) plays a major role in understanding the interface between a charged surface (e.g. an implant) and ionic liquids (e.g. body fluids). The three classical models of the EDL (Helmholtz, Gouy, and Chapman-Stern) are numerically solved for a flat surface electrode in the 3D Electrostatics application mode of COMSOL Multiphysics® 3.5a. The values of the electric ...
D. Adair, K. Ismailov, Z. Bakenov
School of Engineering, Nazarbayev University, Astana, Kazakhstan
CPS, Nazarbayev University, Astana, Kazakhstan
Institute of Batteries, Astana, Kazakhstan
A design for the thermal management of the media used for packing Li-ion batteries used in hybrid and electric vehicles has been developed. The design satisfies all thermal and physical issues relating to the battery packs used in vehicles such as operating temperature range and volume, and, should increase battery life cycle and charge and discharge performances. Particular attention was ...
C. Siegel[1,2], G. Bandlamudi[1,2], and A. Heinzel[1,2]
Zentrum für BrennstoffzellenTechnik (ZBT) gGmbH, Duisburg, Germany
Institut für Energie- und Umweltverfahrenstechnik, University of Duisburg-Essen, Duisburg, Germany
Phosphoric acid doped polybenzimidazole (PBI) membranes are commonly used in today’s high-temperature polymer-electrolyte-membrane (HTPEM) fuel cell technology. COMSOL Multiphysics is used to model and simulate the three-dimensional, single-phase, non-isothermal overall cell behaviour at different operating points. The sol-gel PBI/H3PO4 membrane behaviour is modeled using an Arrhenius ...
A. K. R. Paul , R. D. Pal ,
 CSIR-Central Electrochemical Research Institute, Karaikudi, Tamil Nadu, India
 Academy of Scientific and Innovative Research, Chennai, Tamil Nadu, India
A lithium-ion battery comprises of two intercalating electrodes separated by a membrane, sandwiched between aluminum and copper current collecting plates. The battery performance depends upon several parameters and its operating conditions. In this work we developed a model for a lithium iron phosphate battery and validated our results with experimental charge-discharge curves. We however note ...
G. Madabattula, S. K. Gupta
Department of Chemical Engineering, Indian Institute of Science, Bangalore, Karnataka, India
Low cost high energy density batteries that can be charged and discharged rapidly are required in a number of applications. Tapping energy from renewal resources such as solar, wind and tide requires rapidly generated energy to be first stored and then used round the clock. Storing energy of a moving vehicle as it slows down and recovering it to accelerate the vehicle later can significantly ...
TVS Motor Company Ltd., Hosur, Tamil Nadu, India
The proposed State of Charge (SOC) governed fast charging method for secondary lithium based batteries charges a battery many times faster than the normal Constant Current-Constant Voltage (CC-CV) charging and reduces the side-effects generally accompanied by various fast charging methods. The proposed charging algorithm takes into account the varying internal impedance of the battery at ...
F. Lima, U. Mescheder, H. Reinecke
Hochschule Furtwangen University, Furtwangen, Baden-Wuerttemberg, Germany
Institut für Mikrosystemtechnik, Freiburg im Breisgau, Baden-Wuerttemberg, Germany
Electrodeposition has a major advantage over other methods of thin film deposition. It allows deposition at atmospheric pressure and room temperature, requiring inexpensive equipment. However, there are several parameters which can influence an electroplated metal layer quality. The current density distribution is taken into consideration. The Hull cell is an electrodeposition tank with a ...
A. M. Melcher , C. Ziebert , B. Lei , M. Rohde , H. J. Seifert 
 Karlsruhe Institute of Technology, IAM-AWP, Karlsruhe, Germany
 Karlsruhe Institute of Technology, Karlsruhe, Germany
In this work the coupled electrochemical-thermal model for a lithium-ion battery (LIB) based on porous electrode theory has been extended with contributions coming from exothermic side reactions based on an Arrhenius law to model abuse mechanisms, which could lead to a thermal runaway. These extensions have been modeled with a constant fuel model and for specified current profiles and exterior ...
2D Axisymmetric Simulation of Pulsed Electrochemical Machining (PECM) of Internal Precision Geometries
M. Hackert-Oschätzchen , M. Kowalick , R. Paul , M. Zinecker , D. Kuhn , G. Meichsner , A. Schubert ,
 Professorship Micromanufacturing Technology, Technische Universität Chemnitz, Chemnitz, Germany
 Fraunhofer Institute for Machine Tools and Forming Technology, Chemnitz, Germany
 Professorship Micromanufacturing Technology, Technische Universität Chemnitz, Chemnitz, Germany; Fraunhofer Institute for Machine Tools and Forming Technology, Chemnitz, Germany
This study presents investigations on a developed process design for manufacturing internal precision geometries by pulsed electrochemical machining (PECM) with help of multiphysics simulations. Therefore, a 2D axisymmetric transient model was created. The considered physical phenomena are fluid dynamics, thermodynamics, electrodynamics, the formation and transport of hydrogen as well as ...
Heat Generation Modeling of Two Lithium Batteries: from the Cell to the Pack in COMSOL Multiphysics® Software
J. Stoudmann , R. Rozsnyo , T. Mackin , J. Dunning 
 Haute École du paysage, d'ingénierie et d'architecture, Genève, Switzerland
 California Polytechnic State University, San Luis Obispo, CA, USA
A thermal model to predict the heat generation during the charge and discharge of a battery pack is an essential tool to manage the thermal behavior, performance and life of the batteries. In this work, a battery cell is modeled in COMSOL Multiphysics® using the Batteries and Fuel Cells module.