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Title: Modeling Battery Performance Due to Intercalation Driven Volume Change in Porous Electrodes

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/2.0621711jes· OSTI ID:1459379
 [1];  [2];  [2];  [2];  [3];  [4];  [5]
  1. Univ. of South Carolina, Columbia, SC (United States). Hydrogen and Fuel Cell Center; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Electrochemical Technologies Group
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Electrochemical Technologies Group
  3. Univ. of South Carolina, Columbia, SC (United States). Dept. of Mechanical Engineering
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Electrochemical Technologies Group; Argonne National Lab. (ANL), Argonne, IL (United States). Argonne Collaborative Center for Energy Storage Science
  5. Univ. of South Carolina, Columbia, SC (United States). Hydrogen and Fuel Cell Center
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Simulations are presented that result from incorporating dimensional and porosity changes in porous electrodes caused by volume changes in the active material during intercalation into a detailed lithium-ion battery model. Porosity and dimensional changes in an electrode can significantly affect the resistance of the battery during cycling, which in turn alters the reaction distributions in the porous electrodes. In addition, volume changes generate stresses in the electrode which can lead to premature failure of the battery. Material conservation equations are coupled with the mechanical properties of porous electrodes to link dimensional and porosity changes to stresses and the resulting resistances that occur during the intercalation processes. Through the use of porous rock mechanics, porosity and strain gradients can be predicted based on state of discharge and discharge rate. Several different battery casings and discharge rates are examined and operating curves are predicted.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1459379
Journal Information:
Journal of the Electrochemical Society, Vol. 164, Issue 11; ISSN 0013-4651
Publisher:
The Electrochemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

References (21)

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Cited By (3)

A Reformulation of the Pseudo2D Battery Model Coupling Large Electrochemical-Mechanical Deformations at Particle and Electrode Levels journal January 2019
The Effect of Volume Change on the Accessible Capacities of Porous Silicon-Graphite Composite Anodes journal January 2019
The Effect of Volume Change on the Accessible Capacities of Porous Silicon-Graphite Composite Anodes journal May 2019

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Related Subjects

25 ENERGY STORAGE
36 MATERIALS SCIENCE
battery
intercalation
modeling
porous electrodes
volume change