基于电化学-热耦合模型的锂离子电池组件产热分析

杨佳兴, 张恒运, 徐屹东

Heat generation analysis for lithium-ion battery components using electrochemical and thermal coupled model

Jiaxing YANG, Hengyun ZHANG, Yidong XU

表3 产热方程

Table 3 Heat generation equation

位置	方程
正负电极颗粒	$q_{p o l} = α_{P} j_{P} η$	(12)
	$q_{O h m} = σ_{e f f} \nabla φ_{s} \cdot \nabla φ_{s} + κ_{e f f} \nabla φ_{l} \cdot \nabla φ_{l} + \frac{2 κ_{e f f} R T}{F} (t_{+} - 1) (1 + \frac{d l n f_{\pm}}{d l n c_{l}}) \nabla l n c_{l} \cdot \nabla φ_{l}$	(13)
	$q_{r e v} = α_{P} j_{P} T \frac{\partial E}{\partial T}$	(14)
集流体	$q_{C} = (R_{C, C u} + R_{C, A l}) I^{2}$	(15)
电解液	$q_{e l} = κ_{e f f} \nabla φ_{l} \cdot \nabla φ_{l} + \frac{2 κ_{e f f} R T}{F} (t_{+} - 1) (1 + \frac{d l n f_{\pm}}{d l n c_{l}}) \nabla l n c_{l} \cdot \nabla φ_{l}$	(16)