A three-dimensional multi-physics model for a Li-ion battery

被引：98
|
作者：
Guo, Meng [1 ]
Kim, Gi-Heon [2 ]
White, Ralph E. [1 ]
机构：
[1] Univ S Carolina, Dept Chem Engn, Columbia, SC 29208 USA
[2] Natl Renewable Energy Lab, Golden, CO 80401 USA
来源：
JOURNAL OF POWER SOURCES | 2013年 / 240卷
关键词：
Li-ion; Battery module; 3D model; Pseudo-2D; SOLID-PHASE DIFFUSION; THERMAL-MODEL; CELL; PERFORMANCE; REFORMULATION; BEHAVIOR;
D O I：
10.1016/j.jpowsour.2013.03.170
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A multi-geometry and multi-physics model is developed for a Li-ion battery module which includes three cells connected in series by electrical busbars. The model can be used to predict the 3D profiles of the electrical potentials and temperature in the battery. The physics-based porous electrode (P2D) model is used to predict the electrochemical behavior of the cells, and the coupling between the P2D model and the electrical/thermal equations is simplified through a linear approximation method. This approximation is useful at rates of at least 5 C and reduces the computation time significantly. The anisotropic conductive properties for the regions where conductors are separately arrayed are discussed in detail, and the model predictions are presented and discussed. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：80 / 94
页数：15
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