Consultez les proceedings de la Conference COMSOL 2024
The purpose of this work is to show whether an important difference in Lithium solid concentration and electrolyte concentration can be observed in a Lithium-ion battery model, when considering either the Butler-Volmer kinetics or the Tafel kinetics for describing the electrode kinetics ... En savoir plus
为了证明膨胀对电池厚度变化的影响，传统p2d模型耦合移动边界法新建立了一个模型。对复合材料的比例进行了详细分类，以准确分析两种材料对容量的贡献。此外，还研究了电极设计（如活性层厚度和负极孔隙率）以及工作条件对电池电化学性能和厚度变化的影响。当硅含量增加并改变电极结构时，容量贡献率从 85% 增加到 92%。当孔隙率从 40% 增加到 60% 以及负极活性层厚度从 55 μm 增加到 85 μm 时，容量利用率分别从 58% 到 79% 和从 68% 到 59% 不等。在速率测试中，当速率从 0.5 C 变化到 2 C 时，电池厚度变化从 2.49 μm 减小到 1.56 ... En savoir plus
The adoption of micro- and nanostructured electrodes is a promising technique to improve the performance of Li-ion battery, which increases the electrode surface area and improves the efficiency of ion exchange between the electrode and electrolyte. This performance improvement is ... En savoir plus
Dr. Bernardi is a Research Engineer with Ford Motor Company in Dearborn, MI. Her research focuses on the analysis and simulation of electrochemical energy-storage and conversion systems. In particular, Dr. Bernardi develops mathematical models that predict system behavior and identify ... En savoir plus
Problem - The occlusion effect is an increase in loudness (sound pressure level) of your internal voice, especially in the low frequency range. Also, self-generated sounds such as chewing, swallowing, walking or running are amplified when the ears are blocked or occluded. Occlusion ... En savoir plus
In this conference we have brought together a community that is scientifically diverse in an event that allows for inspiring contacts about the use of COMSOL Multiphysics. It is an event to connect with the Spanish and Portuguese COMSOL Multiphysics users and participate in training ... En savoir plus
A new method is proposed to study battery thermal behavior under nature convection condition, especially focusing on temperature rising and inhomogeneity of battery. Using porous electrode theory, an electrochemical and homogenization heat source thermal coupling model and an ... En savoir plus
This work is to present an implementation of COMSOL with MATLAB® [1] for the liquid cooling system of a battery pack based on the physics in COMSOL. The m.file of a model of battery module from COMSOL 4.2 is exported and modified to run in MATLAB®, as well as is managed by using another ... En savoir plus
The reaction current density is an important process parameter of lithium-ion battery, significantly influencing its electrochemical performance. In this study, aimed at the discharge process of lithium-ion power battery, an electrochemical-thermal model was established to analyze the ... En savoir plus
Solid Oxide Fuel Cells (SOFC) and Li-ion batteries (LIB) are electrochemical devices where performance is dependent on reactions inside porous electrode microstructures. Here we use tomographic techniques to probe 3D electrode structures (anodes and cathodes) at micro-nanometer length ... En savoir plus