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Influence of Mechanical Interaction Between Lithium-Ion Pouch Cells in a Simplified Battery Module Under Impact Loading

[+] Author Affiliations
Guanhua Chen, Wei Li, Hailing Luo, Yong Xia

Tsinghua University, Beijing, China

Paper No. IMECE2017-72144, pp. V014T11A029; 9 pages
doi:10.1115/IMECE2017-72144
From:
  • ASME 2017 International Mechanical Engineering Congress and Exposition
  • Volume 14: Emerging Technologies; Materials: Genetics to Structures; Safety Engineering and Risk Analysis
  • Tampa, Florida, USA, November 3–9, 2017
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5849-3
  • Copyright © 2017 by ASME

abstract

To understand the mechanical interaction between pouch cells in a battery module and improve the crash safety designs for the power battery system of electrical vehicles, a type of simplified battery module consisting of three pouch cells is designed and tested under impact loading with a drop tower. A finite element model is developed to analyze the response of battery module, and a series of calibration and verification tests are conducted to acquire the homogenized material properties of the single cell. Various loading conditions and factors concerning the safety design of batteries under crash scenarios, e.g. impact speed, drop mass and gaps between cells, are analyzed and discussed in terms of the influence on the mechanical, electrical and thermal responses.

Copyright © 2017 by ASME
Topics: Lithium , Batteries

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