In situ measurement of radial temperature distributions in cylindrical Li-ion cells

Guangsheng Zhang, Lei Cao, Shanhai Ge, Chao-yang Wang, Christian E. Shaffer, Christopher D. Rahn

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Temperature is critical to the performance, durability and safety of Li-ion batteries. This paper reports in situ measurement of the radial temperature distribution inside a cylindrical Li-ion battery cell. 18650-size cylindrical cells with multiple micro thermocouples embedded are designed and manufactured. The radial temperature distribution is obtained under various operating conditions. The effects of critical parameters, such as discharge C rate, ambient temperature, and cooling condition, are investigated. It is found that higher discharge C rate and lower ambient temperature lead to higher temperature rise and larger temperature gradient within the battery cell. Stronger cooling results in smaller temperature rise but larger temperature gradient. Correlation between relative temperature gradient and cooling coefficient suggests that the assumption of uniform temperature distribution is applicable under natural-convection conditions but not applicable under strong forced convection conditions. The present results provide valuable experimental data that can be readily used to validate electrochemical-thermal coupled (ECT) battery models.

Original languageEnglish (US)
JournalJournal of the Electrochemical Society
Volume161
Issue number10
DOIs
StatePublished - Jan 1 2014

Fingerprint

in situ measurement
electric batteries
Temperature distribution
temperature distribution
Ions
temperature gradients
Thermal gradients
cells
cooling
ambient temperature
ions
Cooling
Temperature
forced convection
thermocouples
durability
free convection
Forced convection
safety
critical temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this

@article{9be0cec15fe84fa0bd2939c3480e29bb,
title = "In situ measurement of radial temperature distributions in cylindrical Li-ion cells",
abstract = "Temperature is critical to the performance, durability and safety of Li-ion batteries. This paper reports in situ measurement of the radial temperature distribution inside a cylindrical Li-ion battery cell. 18650-size cylindrical cells with multiple micro thermocouples embedded are designed and manufactured. The radial temperature distribution is obtained under various operating conditions. The effects of critical parameters, such as discharge C rate, ambient temperature, and cooling condition, are investigated. It is found that higher discharge C rate and lower ambient temperature lead to higher temperature rise and larger temperature gradient within the battery cell. Stronger cooling results in smaller temperature rise but larger temperature gradient. Correlation between relative temperature gradient and cooling coefficient suggests that the assumption of uniform temperature distribution is applicable under natural-convection conditions but not applicable under strong forced convection conditions. The present results provide valuable experimental data that can be readily used to validate electrochemical-thermal coupled (ECT) battery models.",
author = "Guangsheng Zhang and Lei Cao and Shanhai Ge and Chao-yang Wang and Shaffer, {Christian E.} and Rahn, {Christopher D.}",
year = "2014",
month = "1",
day = "1",
doi = "10.1149/2.0051410jes",
language = "English (US)",
volume = "161",
journal = "Journal of the Electrochemical Society",
issn = "0013-4651",
publisher = "Electrochemical Society, Inc.",
number = "10",

}

In situ measurement of radial temperature distributions in cylindrical Li-ion cells. / Zhang, Guangsheng; Cao, Lei; Ge, Shanhai; Wang, Chao-yang; Shaffer, Christian E.; Rahn, Christopher D.

In: Journal of the Electrochemical Society, Vol. 161, No. 10, 01.01.2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - In situ measurement of radial temperature distributions in cylindrical Li-ion cells

AU - Zhang, Guangsheng

AU - Cao, Lei

AU - Ge, Shanhai

AU - Wang, Chao-yang

AU - Shaffer, Christian E.

AU - Rahn, Christopher D.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Temperature is critical to the performance, durability and safety of Li-ion batteries. This paper reports in situ measurement of the radial temperature distribution inside a cylindrical Li-ion battery cell. 18650-size cylindrical cells with multiple micro thermocouples embedded are designed and manufactured. The radial temperature distribution is obtained under various operating conditions. The effects of critical parameters, such as discharge C rate, ambient temperature, and cooling condition, are investigated. It is found that higher discharge C rate and lower ambient temperature lead to higher temperature rise and larger temperature gradient within the battery cell. Stronger cooling results in smaller temperature rise but larger temperature gradient. Correlation between relative temperature gradient and cooling coefficient suggests that the assumption of uniform temperature distribution is applicable under natural-convection conditions but not applicable under strong forced convection conditions. The present results provide valuable experimental data that can be readily used to validate electrochemical-thermal coupled (ECT) battery models.

AB - Temperature is critical to the performance, durability and safety of Li-ion batteries. This paper reports in situ measurement of the radial temperature distribution inside a cylindrical Li-ion battery cell. 18650-size cylindrical cells with multiple micro thermocouples embedded are designed and manufactured. The radial temperature distribution is obtained under various operating conditions. The effects of critical parameters, such as discharge C rate, ambient temperature, and cooling condition, are investigated. It is found that higher discharge C rate and lower ambient temperature lead to higher temperature rise and larger temperature gradient within the battery cell. Stronger cooling results in smaller temperature rise but larger temperature gradient. Correlation between relative temperature gradient and cooling coefficient suggests that the assumption of uniform temperature distribution is applicable under natural-convection conditions but not applicable under strong forced convection conditions. The present results provide valuable experimental data that can be readily used to validate electrochemical-thermal coupled (ECT) battery models.

UR - http://www.scopus.com/inward/record.url?scp=84907466023&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84907466023&partnerID=8YFLogxK

U2 - 10.1149/2.0051410jes

DO - 10.1149/2.0051410jes

M3 - Article

AN - SCOPUS:84907466023

VL - 161

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

SN - 0013-4651

IS - 10

ER -