Abstract
Operating temperature greatly affects the performance and life of batteries in electric and hybrid vehicles. Increased attention is necessary to battery thermal management. Electrochemical models and finite element analysis tools are available for predicting the thermal performance of batteries, but each has limitations. In this study we describe an electro-thermal finite element approach that predicts the thermal performance of a cell or module with realistic geometry. To illustrate the process, we simulated the thermal performance of two generations of Panasonic prismatic nickel-metal-hydride modules used in the Toyota Prius. The model showed why the new generation of Panasonic modules had better thermal performance. Thermal images from two battery modules under constant current discharge indicate that the model predicts the experimental trend reasonably well.
| Original language | American English |
|---|---|
| Pages | 368-375 |
| Number of pages | 8 |
| DOIs | |
| State | Published - 2005 |
| Event | 2005 IEEE Vehicle Power and Propulsion Conference, VPPC - Chicago, IL, United States Duration: 7 Sep 2005 → 9 Sep 2005 |
Conference
| Conference | 2005 IEEE Vehicle Power and Propulsion Conference, VPPC |
|---|---|
| Country/Territory | United States |
| City | Chicago, IL |
| Period | 7/09/05 → 9/09/05 |
Bibliographical note
For preprint version see NREL/CP-540-38621. (Title changed at publication.)NREL Publication Number
- NREL/CP-540-41751
Keywords
- Battery model
- HEV (hybrid electric vehicle)
- Nickel metal hydride
- Simulation
- Thermal management