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Title: Simultaneously Coupled Mechanical-Electrochemical-Thermal Simulation of Lithium-Ion Cells

Abstract

Understanding the combined electrochemical-thermal and mechanical response of a system has a variety of applications, for example, structural failure from electrochemical fatigue and the potential induced changes of material properties. For lithium-ion batteries, there is an added concern over the safety of the system in the event of mechanical failure of the cell components. In this work, we present a generic multi-scale simultaneously coupled mechanical-electrochemical-thermal model to examine the interaction between mechanical failure and electrochemical-thermal responses. We treat the battery cell as a homogeneous material while locally we explicitly solve for the mechanical response of individual components using a homogenization model and the electrochemical-thermal responses using an electrochemical model for the battery. A benchmark problem is established to demonstrate the proposed modeling framework. The model shows the capability to capture the gradual evolution of cell electrochemical-thermal responses, and predicts the variation of those responses under different short-circuit conditions.

Authors:
; ; ;
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1344451
Report Number(s):
NREL/JA-5400-68006
Journal ID: ISSN 1938-6737
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Journal Article
Resource Relation:
Journal Name: ECS Transactions (Online); Journal Volume: 72; Journal Issue: 24
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 30 DIRECT ENERGY CONVERSION; energy storage; electrochemical-thermal mechanical response; MECT; lithium-ion battery

Citation Formats

Zhang, C., Santhanagopalan, S., Sprague, M. A., and Pesaran, A.. Simultaneously Coupled Mechanical-Electrochemical-Thermal Simulation of Lithium-Ion Cells. United States: N. p., 2016. Web. doi:10.1149/07224.0009ecst.
Zhang, C., Santhanagopalan, S., Sprague, M. A., & Pesaran, A.. Simultaneously Coupled Mechanical-Electrochemical-Thermal Simulation of Lithium-Ion Cells. United States. doi:10.1149/07224.0009ecst.
Zhang, C., Santhanagopalan, S., Sprague, M. A., and Pesaran, A.. Thu . "Simultaneously Coupled Mechanical-Electrochemical-Thermal Simulation of Lithium-Ion Cells". United States. doi:10.1149/07224.0009ecst.
@article{osti_1344451,
title = {Simultaneously Coupled Mechanical-Electrochemical-Thermal Simulation of Lithium-Ion Cells},
author = {Zhang, C. and Santhanagopalan, S. and Sprague, M. A. and Pesaran, A.},
abstractNote = {Understanding the combined electrochemical-thermal and mechanical response of a system has a variety of applications, for example, structural failure from electrochemical fatigue and the potential induced changes of material properties. For lithium-ion batteries, there is an added concern over the safety of the system in the event of mechanical failure of the cell components. In this work, we present a generic multi-scale simultaneously coupled mechanical-electrochemical-thermal model to examine the interaction between mechanical failure and electrochemical-thermal responses. We treat the battery cell as a homogeneous material while locally we explicitly solve for the mechanical response of individual components using a homogenization model and the electrochemical-thermal responses using an electrochemical model for the battery. A benchmark problem is established to demonstrate the proposed modeling framework. The model shows the capability to capture the gradual evolution of cell electrochemical-thermal responses, and predicts the variation of those responses under different short-circuit conditions.},
doi = {10.1149/07224.0009ecst},
journal = {ECS Transactions (Online)},
number = 24,
volume = 72,
place = {United States},
year = {Thu Jul 28 00:00:00 EDT 2016},
month = {Thu Jul 28 00:00:00 EDT 2016}
}