Abstract
Temperature is one of the main factors that control the degradation in lithium ion batteries. Accurate knowledge and control of cell temperatures in a pack helps the battery management system to maximize cell utilization and ensure pack safety and service life. In a pack with arrays of cells, a cell's temperature is not only affected by its own thermal characteristics but also by its neighbors, the cooling system and pack configuration, which increase the noise level and the complexity of cell temperature prediction. This work proposes to model lithium-ion packs' thermal behavior using a multi-node thermal network model, which predicts the cell temperatures by zones. The model was parametrized and validated using commercial lithium-ion battery packs.
Original language | American English |
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Pages | 723-727 |
Number of pages | 5 |
DOIs | |
State | Published - 28 Jul 2015 |
Event | 2015 American Control Conference, ACC 2015 - Chicago, United States Duration: 1 Jul 2015 → 3 Jul 2015 |
Conference
Conference | 2015 American Control Conference, ACC 2015 |
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Country/Territory | United States |
City | Chicago |
Period | 1/07/15 → 3/07/15 |
Bibliographical note
See NREL/CP-5400-63898 for preprintNREL Publication Number
- NREL/CP-5400-65186
Keywords
- battery pack thermal management
- lithium-ion battery
- system modeling