Sehen Sie, wie die Multiphysik-Simulation in Forschung und Entwicklung eingesetzt wird
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Sehen Sie sich die Kollektion für die COMSOL Conference 2024 an
车载动力锂离子电池通常采用层叠式结构来提高电池容量，减小体积。层叠式结构的电池通常将正负极耳布置于电池顶端，这种布置方式导致电池沿平面方向温度分布不均。为研究电池温度变化与分布特征，以10Ah磷酸铁锂电池为研究对象，通过耦合质量、电荷、能量及电化学动力学方程，建立了三维分层电化学-热耦合模型。仿真结果表明，在放电过程中，极耳与极板连接区域电位分布与电流密度分布都存在明显的分布梯度，且在正极极耳处电流密度值最大，温升最高，放电结束时温升达到最大值8℃。电池不同位置的温升速率不同，放电前期，靠近极耳区域的温升速率较大，远离极耳处温升速率较小；随着放电过程的深入 ... Mehr lesen
In this paper a finite element method(FEM) study of a surface acoustic wave (SAW)device excited by electrostatic coupling method is performed by using COMSOL Multiphysics. We have modeled a Rayleigh wave type SAW device by choosing YZ Lithium niobate as the substrate. The effect of ... Mehr lesen
LiveLink™ for MATLAB® is used to fit the surface temperature of a battery cell within a COMSOL Multiphysics® model to the temperature measured by a thermal imaging camera. The test bench was designed and built up of ourselves to allow nondestructive thermal diffusivity measurement of Li ... Mehr lesen
OXIS Energy Ltd is a pioneer in the research and development of Lithium Sulfur batteries. Scaling up from R&D level coin cells to pouch cells for automotive use, engineering design and thermal management start to become critical. In this study, heat flow at various levels of the cell ... Mehr lesen
The present work focuses on modeling a new experimental technique: Scanning Electro-chemical Potential Microscopy (SECPM), which is used to probe the potential profile of the electric double layer (EDL). We used an electrostatic approach to compute the EDL potential measured within the ... Mehr lesen
Drop test simulation is one of the important tool used for the impact behaviour study of electronic components. It identifies the flaws in design. The reliability and performance of electronic consoles after the drop is a major concern. Devices are expected to continue functioning after ... Mehr lesen
During the basic operation of a lithium-sulfur (Li-S) cell, sulfur molecules are required to undergo a complex mix of electrochemical and chemical reaction processes. To date, almost all modeling of Li-S cell behavior has been undertaken using electroneutral, structurally homogenized, ... Mehr lesen
We discuss the use of COMSOL Multiphysics 3.4 in the aerodynamic optimization process of the UNLV solarpowered UAV. We also address the use of COMSOL’s Multiphysics ability and how it was used within the scope of the project. In particular we highlight the development of wingtip devices, ... Mehr lesen
Introduction: After more than 20 years of experience in EV applications, the sodium nickel chloride technology is fully mature for large scale energy storage. Early on, mathematical modeling of Na-MCl2 cell (M standing for Fe or Ni) has attracted attention to help identifying predominant ... Mehr lesen
When it comes to study the behavior of the secondary batteries, physics-based models are more representative of the real behaviour than equivalent circuit models, especially for the estimation of the life and capacity fading. On the other hand, the complexity and computational cost of ... Mehr lesen