A Multi-Node Thermal System Model for Lithium-Ion Battery Packs

Research output: Contribution to conferencePaperpeer-review

13 Scopus Citations

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 languageAmerican English
Pages723-727
Number of pages5
DOIs
StatePublished - 28 Jul 2015
Event2015 American Control Conference, ACC 2015 - Chicago, United States
Duration: 1 Jul 20153 Jul 2015

Conference

Conference2015 American Control Conference, ACC 2015
Country/TerritoryUnited States
CityChicago
Period1/07/153/07/15

Bibliographical note

See NREL/CP-5400-63898 for preprint

NREL Publication Number

  • NREL/CP-5400-65186

Keywords

  • battery pack thermal management
  • lithium-ion battery
  • system modeling

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