Engineering-Oriented Modeling for Thermal Behaviors of 18650 Li-ion Batteries

Ximing Cheng; Nan Shi; Yang Li; Shouqun Wang

doi:10.1016/j.egypro.2017.03.1036

Engineering-Oriented Modeling for Thermal Behaviors of 18650 Li-ion Batteries

Ximing Cheng^*, Nan Shi, Yang Li, Shouqun Wang

^*Corresponding author for this work

School of Mechanical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Conference article › peer-review

8 Citations (Scopus)

Abstract

Because temperature takes a significant effect on both degradation and safety of Li-ion batteries, thermal models are often used to analyze their temperature distribution with cycling under varying operation conditions. In engineering, micro-element-based numerical models can be built by commercial software of thermal analysis, the heat generation rate of which was obtained only by a constant resistor as the internal resistance of a battery. In this paper, both surface temperature and state-of-charge of a battery are fed back to get model parameters interpolated to elaborate an oriented-application heat generation rate. This enhanced technique was developed in a routine and integrated into the thermo-electrical model in the commercial software Fluent^®. Compared to the 1D and 2D thermal models, the thermo-electrical model produced the best simulated temperature of one 18650 Li-ion battery.

Original language	English
Pages (from-to)	4757-4762
Number of pages	6
Journal	Energy Procedia
Volume	105
DOIs	https://doi.org/10.1016/j.egypro.2017.03.1036
Publication status	Published - 2017
Event	8th International Conference on Applied Energy, ICAE 2016 - Beijing, China Duration: 8 Oct 2016 → 11 Oct 2016

Keywords

Electrical model
Li-ion batteries
Thermal analysis
Thermal model
Thermo-electrical coupling model

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10.1016/j.egypro.2017.03.1036

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title = "Engineering-Oriented Modeling for Thermal Behaviors of 18650 Li-ion Batteries",

abstract = "Because temperature takes a significant effect on both degradation and safety of Li-ion batteries, thermal models are often used to analyze their temperature distribution with cycling under varying operation conditions. In engineering, micro-element-based numerical models can be built by commercial software of thermal analysis, the heat generation rate of which was obtained only by a constant resistor as the internal resistance of a battery. In this paper, both surface temperature and state-of-charge of a battery are fed back to get model parameters interpolated to elaborate an oriented-application heat generation rate. This enhanced technique was developed in a routine and integrated into the thermo-electrical model in the commercial software Fluent{\textregistered}. Compared to the 1D and 2D thermal models, the thermo-electrical model produced the best simulated temperature of one 18650 Li-ion battery.",

keywords = "Electrical model, Li-ion batteries, Thermal analysis, Thermal model, Thermo-electrical coupling model",

author = "Ximing Cheng and Nan Shi and Yang Li and Shouqun Wang",

note = "Publisher Copyright: {\textcopyright} 2017 The Authors.; 8th International Conference on Applied Energy, ICAE 2016 ; Conference date: 08-10-2016 Through 11-10-2016",

year = "2017",

doi = "10.1016/j.egypro.2017.03.1036",

language = "English",

volume = "105",

pages = "4757--4762",

journal = "Energy Procedia",

issn = "1876-6102",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Engineering-Oriented Modeling for Thermal Behaviors of 18650 Li-ion Batteries

AU - Cheng, Ximing

AU - Shi, Nan

AU - Li, Yang

AU - Wang, Shouqun

PY - 2017

Y1 - 2017

N2 - Because temperature takes a significant effect on both degradation and safety of Li-ion batteries, thermal models are often used to analyze their temperature distribution with cycling under varying operation conditions. In engineering, micro-element-based numerical models can be built by commercial software of thermal analysis, the heat generation rate of which was obtained only by a constant resistor as the internal resistance of a battery. In this paper, both surface temperature and state-of-charge of a battery are fed back to get model parameters interpolated to elaborate an oriented-application heat generation rate. This enhanced technique was developed in a routine and integrated into the thermo-electrical model in the commercial software Fluent®. Compared to the 1D and 2D thermal models, the thermo-electrical model produced the best simulated temperature of one 18650 Li-ion battery.

AB - Because temperature takes a significant effect on both degradation and safety of Li-ion batteries, thermal models are often used to analyze their temperature distribution with cycling under varying operation conditions. In engineering, micro-element-based numerical models can be built by commercial software of thermal analysis, the heat generation rate of which was obtained only by a constant resistor as the internal resistance of a battery. In this paper, both surface temperature and state-of-charge of a battery are fed back to get model parameters interpolated to elaborate an oriented-application heat generation rate. This enhanced technique was developed in a routine and integrated into the thermo-electrical model in the commercial software Fluent®. Compared to the 1D and 2D thermal models, the thermo-electrical model produced the best simulated temperature of one 18650 Li-ion battery.

KW - Electrical model

KW - Li-ion batteries

KW - Thermal analysis

KW - Thermal model

KW - Thermo-electrical coupling model

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U2 - 10.1016/j.egypro.2017.03.1036

DO - 10.1016/j.egypro.2017.03.1036

M3 - Conference article

AN - SCOPUS:85020739202

SN - 1876-6102

VL - 105

SP - 4757

EP - 4762

JO - Energy Procedia

JF - Energy Procedia

T2 - 8th International Conference on Applied Energy, ICAE 2016

Y2 - 8 October 2016 through 11 October 2016

ER -

Engineering-Oriented Modeling for Thermal Behaviors of 18650 Li-ion Batteries

Abstract

Keywords

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