A multi scale multi-dimensional thermo electrochemical modelling of high capacity lithium-ion cells

Abstract Lithium iron phosphate (LFP) and lithium manganese oxide (LMO) are competitive and complementary to each other as cathode materials for lithium-ion batteries, especially for use in electric vehicles. A multi scale multi-dimensional physic-based model is proposed in this paper to study the thermal behaviour of the two lithium-ion chemistries. The model consists of two sub models, a one dimensional (1D) electrochemical sub model and a two dimensional (2D) thermo-electric sub model, which are coupled and solved concurrently. The 1D model predicts the heat generation rate (Qh) and voltage (V) of the battery cell through different load cycles. The 2D model of the battery cell accounts for temperature distribution and current distribution across the surface of the battery cell. The two cells are examined experimentally through 90 h load cycles including high/low charge/discharge rates. The experimental results are compared with the model results and they are in good agreement. The presented results in this paper verify the cells temperature behaviour at different operating conditions which will lead to the design of a cost effective thermal management system for the battery pack.

[1]  S. C. Chen,et al.  Thermal analysis of lithium-ion batteries , 2005 .

[2]  Ho Teng,et al.  Electro-Thermal Modeling of a Lithium-ion Battery System , 2010 .

[3]  J. Simonson,et al.  Engineering heat transfer , 1975 .

[4]  Rachel E. Gerver,et al.  Three-Dimensional Modeling of Electrochemical Performance and Heat Generation of Lithium-Ion Batteries in Tabbed Planar Configurations , 2011 .

[5]  B. Bhushan,et al.  Thermal diffusivity study of aged Li-ion batteries using flash method , 2010 .

[6]  Song-Yul Choe,et al.  Dynamic modeling and analysis of a pouch type LiMn2O4/Carbon high power Li-polymer battery based on electrochemical-thermal principles , 2012 .

[7]  Chee Burm Shin,et al.  A two-dimensional modeling of a lithium-polymer battery , 2006 .

[8]  Dawn Bernardi,et al.  Analysis of pulse and relaxation behavior in lithium-ion batteries , 2011 .

[9]  Frank P. Incropera,et al.  Fundamentals of Heat and Mass Transfer , 1981 .

[10]  J. Tarascon,et al.  Comparison of Modeling Predictions with Experimental Data from Plastic Lithium Ion Cells , 1996 .

[11]  J. Newman,et al.  Heat‐Generation Rate and General Energy Balance for Insertion Battery Systems , 1997 .

[12]  Binggang Cao,et al.  Three-dimensional thermal finite element modeling of lithium-ion battery in thermal abuse application , 2010 .

[13]  Long Cai,et al.  Life modeling of a lithium ion cell with a spinel-based cathode , 2013 .

[14]  Chaoyang Wang,et al.  Power and thermal characterization of a lithium-ion battery pack for hybrid-electric vehicles , 2006 .

[15]  Lars Ole Valøen,et al.  Transport Properties of LiPF6-Based Li-Ion Battery Electrolytes , 2005 .

[16]  Ann Marie Sastry,et al.  Mesoscale Modeling of a Li-Ion Polymer Cell , 2007 .