详情

原文传递 Improving Battery Design with Electro-Thermal Modeling. Preprint.

题名：	Improving Battery Design with Electro-Thermal Modeling. Preprint.
作者：	Duong, T.;Vlahinos, A.;Kim, G.;Bharathan, D.;Pesaran, A.;
关键词：	Hybrid-electric-vehicles; Electric-batteries; *Models-.;Simulation-; Thermal-management.
摘要：	Temperature greatly affects the performance and life of batteries in electric and hybrid vehicles under real driving conditions, so increased attention is being paid to battery thermal management. Sophisticated electrochemical models and finite element analysis tools are available for predicting the thermal performance of batteries, but each has limitations. In this study we describe an electro-thermal finite element approach that predicts the thermal performance of a cell or module with realistic geometry, material properties, loads, and boundary conditions. To show the process, we simulated the thermal performance of two generations of Panasonic prismatic nickel-metal-hydride modules used in the Toyota Prius. The model showed why the new generation of Panasonic modules had better thermal performance. Thermal images from two battery modules under constant current discharge indicated that the model predicts the experimental trend reasonably well. These tools will greatly enhance the opportunity for lithium and other advanced batteries to perform better and become cost-effective alternatives in the future. The model has been used to improve the thermal performance of cylindrical lithium-ion batteries.
报告类型：	科技报告