Lithium-Ion Batteries: Thermal Behaviour Investigation of Unbalanced Modules

In this paper, the thermal behaviour of an unbalanced battery module made of large lithium iron phosphate cylindrical cells of 18 Ah nominal capacity is investigated during its discharge with 18 A, 54 A and 90 A currents. For this study, several cells were assigned in the module to 5%, 10% and 20% initial depth of discharge (DoD). The thermal management of the cells in the module is achieved based on a forced air cooling. The computations of the temperature distribution inside the cells and the module are performed with a two-dimensional modelling approach. During the discharges, the cells with a non-zero initial DoD show a more pronounced temperature increase up to 5% compared to the reference cells. In the end of the three discharges, the highest temperatures 26.5 °C (18 A), 29.6 °C (54 A) and 32.3 °C (90 A), respectively, are reached for the cells with the highest initial DoD. For these cells, with the increase in the current rate, the highest amount of total heat exceeds 25 W. The reactive and the active heats are found to be the main contributors to the total heat generated by the cells. This study provides the effect of the initial DoD of the cells on the temperature development occurring in an unbalanced battery module during its discharge.

[1]  N. Omar,et al.  Comparison of commercial battery cells in relation to material properties , 2013 .

[2]  Joeri Van Mierlo,et al.  SUBAT: An assessment of sustainable battery technology , 2006 .

[3]  Fangming Jiang,et al.  Thermal analyses of LiFePO4/graphite battery discharge processes , 2013 .

[4]  Michael Pecht,et al.  Battery Management Systems in Electric and Hybrid Vehicles , 2011 .

[5]  J. Bernard,et al.  Simplified Electrochemical and Thermal Model of LiFePO4-Graphite Li-Ion Batteries for Fast Charge Applications , 2012 .

[6]  Stéphane Le Masson,et al.  Two-phase thermosyphon loop for cooling outdoor telecommunication equipments , 2013 .

[7]  Tao Wang,et al.  Thermal investigation of lithium-ion battery module with different cell arrangement structures and forced air-cooling strategies , 2014 .

[8]  Yonghuang Ye,et al.  Electrochemical–thermal analysis of 18650 Lithium Iron Phosphate cell , 2013 .

[9]  Jianqiu Li,et al.  A review on the key issues for lithium-ion battery management in electric vehicles , 2013 .

[10]  Fan He,et al.  Combined experimental and numerical study of thermal management of battery module consisting of multiple Li-ion cells , 2014 .

[11]  J. Van Mierlo,et al.  Battery thermal modelling - Assessment of heat distribution and optimization of battery design concept , 2013, 2013 International Conference on Renewable Energy Research and Applications (ICRERA).

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

[13]  Lin Ma,et al.  Thermal management of cylindrical batteries investigated using wind tunnel testing and computational fluid dynamics simulation , 2013 .

[14]  J. Selman,et al.  Active (air-cooled) vs. passive (phase change material) thermal management of high power lithium-ion packs: Limitation of temperature rise and uniformity of temperature distribution , 2008 .

[15]  Ahmad Pesaran,et al.  Battery thermal models for hybrid vehicle simulations , 2002 .

[16]  Yonghuang Ye,et al.  Electro-thermal cycle life model for lithium iron phosphate battery , 2012 .

[17]  Y. Inui,et al.  Simulation of temperature distribution in cylindrical and prismatic lithium ion secondary batteries , 2007 .

[18]  Arun S. Mujumdar,et al.  Thermal–electrochemical model for passive thermal management of a spiral-wound lithium-ion battery , 2012 .

[19]  N. Omar,et al.  Rechargeable Energy Storage Systems for Plug-in Hybrid Electric Vehicles—Assessment of Electrical Characteristics , 2012 .

[20]  A. Balandin,et al.  Graphene-enhanced hybrid phase change materials for thermal management of Li-ion batteries , 2013, 1305.4140.

[21]  Alexander A. Balandin,et al.  Graphene Thermal Properties: Applications in Thermal Management and Energy Storage , 2014 .

[22]  Joeri Van Mierlo,et al.  Models of energy sources for EV and HEV: fuel cells, batteries, ultracapacitors, flywheels and engine-generators , 2004 .

[23]  Hassan Fathabadi,et al.  High thermal performance lithium-ion battery pack including hybrid active–passive thermal management system for using in hybrid/electric vehicles , 2014 .

[24]  Doug Magnuson,et al.  Using Cell Balancing to Maximize the Capacity of Multi-cell Li-Ion Battery Packs , 2005 .

[25]  Christopher S. Johnson,et al.  Toward lithium ion batteries with enhanced thermal conductivity. , 2014, ACS nano.

[26]  Hamid Gualous,et al.  The Challenge of PHEV Battery Design and the Opportunities of Electrothermal Modeling , 2014 .

[27]  M. Doyle,et al.  Simulation and Optimization of the Dual Lithium Ion Insertion Cell , 1994 .

[28]  M. Doyle,et al.  Modeling of Galvanostatic Charge and Discharge of the Lithium/Polymer/Insertion Cell , 1993 .

[29]  G. Yushin,et al.  Towards Ultrathick Battery Electrodes: Aligned Carbon Nanotube – Enabled Architecture , 2012, Advanced materials.

[30]  John Warner.  Lithium-Ion Battery Packs for EVs , 2014 .

[31]  A. Zukauskas.  Heat Transfer from Tubes in Crossflow , 1972 .