Generative Design and Optimization of Battery Packs with Active Immersion Cooling

Zheng Liu, Jiaxin Wu, Wuchen Fu, Pouya Kabirazadeh, Sara Kohtz, Nenad Miljkovic, Yumeng Li, Pingfeng Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Among different battery packaging technologies, cell-to-pack is a widely used method to reduce the cost and increase the volumetric density of battery packs. Unlike the traditional cell-to-module technology, it requires more robust management to keep the temperature uniformity of all cells within a desirable range to ensure good pack performances. Besides active cooling controls, the layout of cells within the battery pack plays an important role in cooling performances, and thus needs to be optimized for lower cooling costs considering the geometry limitations of the pack. This paper presents the layout optimization of the battery pack with active immersion cooling for the 21700 cylindrical battery pack under harsh loading conditions. Based on the experiment testing, the finite element model with electric and thermal couplings has been built in COMSOL Multiphysics. To reduce the high computational cost, a data-driven generative design method based on variational autoencoder has been developed, which could autonomously mine useful properties from the data set of existing battery layout designs and performance metrics. With the generative design method, candidate designs that optimize the layout decisions can be identified. Based on the computational studies, the cooling cost can be lowered by more than 90% with the identified optimal layout design.

Original languageEnglish (US)
Title of host publication2023 IEEE Transportation Electrification Conference and Expo, ITEC 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350397420
DOIs
StatePublished - 2023
Externally publishedYes
Event2023 IEEE Transportation Electrification Conference and Expo, ITEC 2023 - Detroit, United States
Duration: Jun 21 2023Jun 23 2023

Publication series

Name2023 IEEE Transportation Electrification Conference and Expo, ITEC 2023

Conference

Conference2023 IEEE Transportation Electrification Conference and Expo, ITEC 2023
Country/TerritoryUnited States
CityDetroit
Period6/21/236/23/23

Keywords

  • Battery active cooling
  • Battery management system
  • Design optimization
  • Generative model
  • Machine learning

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Automotive Engineering
  • Transportation
  • Control and Optimization

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