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Thermal Shrinkage Behavior of Battery Separator

[+] Author Affiliations
Shutian Yan, Xinran Xiao

Michigan State University, Lansing, MI

Jie Deng, Chulheung Bae

Ford Motor Company, Dearborn, MI

Paper No. IMECE2018-86621, pp. V009T12A037; 6 pages
  • ASME 2018 International Mechanical Engineering Congress and Exposition
  • Volume 9: Mechanics of Solids, Structures, and Fluids
  • Pittsburgh, Pennsylvania, USA, November 9–15, 2018
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5214-9
  • Copyright © 2018 by ASME


Battery separators are thin, porous membrane of 20∼30 microns thickness. Polymer separators display a significant amount of shrinkage at elevated temperatures. It is difficult to quantitatively characterize the large shrinkage behavior with a free standing separator sample. This paper examines the use of a dynamic mechanical analyzer under tensile mode in measuring the coefficient of thermal expansion (CTE) of three commonly used separators.

Copyright © 2018 by ASME



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