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Title: Communication—indentation of Li-ion pouch cell: Effect of material homogenization on prediction of internal short circuit

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/2.0151613jes· OSTI ID:1327655
 [1];  [1];  [1];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
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We performed finite element simulations of spherical indentation of Li-ion pouch cells. Our model fully resolves different layers in the cell. The results of the layer resolved models were compared to the models available in the literature that treat the cell as an equivalent homogenized continuum material. Simulations were carried out for different sizes of the spherical indenter. Here, we show that calibration of a failure criterion for the cell in the homogenized model depends on the indenter size, whereas in the layer-resoled model, such dependency is greatly diminished.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
Work for Others (WFO); USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1327655
Journal Information:
Journal of the Electrochemical Society, Vol. 163, Issue 10; ISSN 0013-4651
Publisher:
The Electrochemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (8)

A representative-sandwich model for simultaneously coupled mechanical-electrical-thermal simulation of a lithium-ion cell under quasi-static indentation tests journal December 2015
Coupled mechanical-electrical-thermal modeling for short-circuit prediction in a lithium-ion cell under mechanical abuse journal September 2015
Calibration and finite element simulation of pouch lithium-ion batteries for mechanical integrity journal March 2012
Modeling and short circuit detection of 18650 Li-ion cells under mechanical abuse conditions journal December 2012
Homogenized mechanical properties for the jellyroll of cylindrical Lithium-ion cells journal November 2013
Characterizing and modeling mechanical properties and onset of short circuit for three types of lithium-ion pouch cells journal February 2014
Validation of constitutive models applicable to aluminium foams journal February 2002
Mechanical behavior of representative volume elements of lithium-ion battery modules under various loading conditions journal February 2014

Cited By (5)

The indentation analysis triggering internal short circuit of lithium-ion pouch battery based on shape function theory journal May 2018
Resistance exterior force property of lithium‐ion pouch batteries with different positive materials journal May 2019
High-energy lithium metal pouch cells with limited anode swelling and long stable cycles journal May 2019
Accelerate Battery Safety Simulations Using Composite Tshell Elements journal January 2018
Internal short circuit detection in Li-ion batteries using supervised machine learning journal January 2020

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Related Subjects

25 ENERGY STORAGE
homogenized
pouch cell
short-circuit