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Comparaison de diverses méthodes de refroidissement utilisées pour les cellules des batteries au lithium-ion.

Comparison of different cooling methods for lithium ion battery cells.

Auteurs : CHEN D., JIANG J., KIM G. H., et al.

Type d'article : Article

Résumé

Choosing a proper cooling method for a lithium-ion (Li-ion) battery pack for electric drive vehicles (EDVs) and making an optimal cooling control strategy to keep the temperature at a optimal range of 15?°C to 35?°C is essential to increasing safety, extending the pack service life, and reducing costs. When choosing a cooling method and developing strategies, trade-offs need to be made among many facets such as costs, complexity, weight, cooling effects, temperature uniformity, and parasitic power. This paper considers four cell-cooling methods: air cooling, direct liquid cooling, indirect liquid cooling, and fin cooling. To evaluate their effectiveness, these methods are assessed using a typical large capacity Li-ion pouch cell designed for EDVs from the perspective of coolant parasitic power consumption, maximum temperature rise, temperature difference in a cell, and additional weight used for the cooling system. We use a state-of-the-art Li-ion battery electro-chemical thermal model. The results show that under our assumption an air-cooling system needs 2 to 3 more energy than other methods to keep the same average temperature; an indirect liquid cooling system has the lowest maximum temperature rise; and a fin cooling system adds about 40% extra weight of cell, which weighs most, when the four kinds cooling methods have the same volume. Indirect liquid cooling is a more practical form than direct liquid cooling though it has slightly lower cooling performance.

Détails

  • Titre original : Comparison of different cooling methods for lithium ion battery cells.
  • Identifiant de la fiche : 30017008
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 94
  • Date d'édition : 05/02/2016
  • DOI : http://dx.doi.org/10.1016/j.applthermaleng.2015.10.015

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