Browse Publications Technical Papers 2015-01-1189

Experimental Measurements of Thermal Characteristics of LiFePO 4 Battery 2015-01-1189

A major challenge in the development of the next generation electric and hybrid electric vehicle (EV and HEV) technology is the control and management of heat generation and operating temperatures. Vehicle performance, reliability and ultimately consumer market adoption are integrally dependent on successful battery thermal management designs. In addition to this, crucial to thermal modeling is accurate thermo-physical property input. Therefore, to design a thermal management system and for thermal modeling, a designer must study the thermal characteristics of batteries. This work presents a purely experimental thermal characterization of thermo-physical properties of a lithium-ion battery utilizing a promising electrode material, LiFePO4, in a prismatic pouch configuration. In this research, the thermal resistance and corresponding thermal conductivity of prismatic battery materials is evaluated. The experiment was designed to measure the thermal conductivity of both the individual electrode layers, and the overall thermal resistance of the sealed prismatic structure. For this experiment, the first step was battery dissection, the second step was sample preparation and the third step was the measurement of thermal resistance. Thermal resistance measurements were made using specially constructed battery samples. The thru-plane thermal conductivity of LiFePO4 positive electrode and negative electrode materials was found to be 1.79 ± 0.18 W/m°C and 1.17 ± 0.12 W/m°C, respectively.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:

Approach to Estimate Life of Li-Ion Power Battery for Mild Hybrid Application in India


View Details


Hybrid Vehicle Battery Technology - The Transition From NiMH To Li-Ion


View Details


Improving Battery Pack Safety with an Innovative Fluid for Thermal Management


View Details