Individual cell-level temperature monitoring of a lithium-ion battery pack

Keith M. Alcock; Álvaro González-Vila; Mustehsan Beg; Francisco Vedreño-Santos; Zuansi Cai; Lourdes S. M. Alwis; Keng Goh

doi:10.3390/s23094306

Individual cell-level temperature monitoring of a lithium-ion battery pack

Keith M. Alcock, Álvaro González-Vila, Mustehsan Beg, Francisco Vedreño-Santos, Zuansi Cai, Lourdes S. M. Alwis, Keng Goh

Faculty of Science

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

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Abstract

The work described herein details the deployment of an optical fibre strand with five fibre Bragg grating (FBG) sensors for individual cell-level temperature monitoring of a three-cell lithium-ion battery pack. A polymer guide tube with 3D printed plinths is employed, resulting in high precision temperature readings with an average error of 0.97 °C, 1.33 °C, and 1.27 °C for FBG sensors on each battery cell, surpassing traditional thermocouple and platinum resistance sensors in some circumstances. The temperature response of FBGs positioned between battery cells demonstrates that, in addition to sensing temperature at the cell level, temperature data can be effectively acquired between cells, suggesting that FBGs may be used to monitor the heat radiated from individual cells in a battery pack.

Original language	English
Article number	4306
Journal	Sensors
Volume	23
Issue number	9
Early online date	26 Apr 2023
DOIs	https://doi.org/10.3390/s23094306
Publication status	Published - 1 May 2023

Keywords

FOS
FBG
Bragg
lithium-ion
battery
temperature monitoring
guide tube

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3390/s23094306Licence: CC BY

sensors-23-04306-v2Final published version, 2.18 MBLicence: CC BY

Cite this

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AU - Alcock, Keith M.

AU - González-Vila, Álvaro

AU - Beg, Mustehsan

AU - Vedreño-Santos, Francisco

AU - Cai, Zuansi

AU - Alwis, Lourdes S. M.

AU - Goh, Keng

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AB - The work described herein details the deployment of an optical fibre strand with five fibre Bragg grating (FBG) sensors for individual cell-level temperature monitoring of a three-cell lithium-ion battery pack. A polymer guide tube with 3D printed plinths is employed, resulting in high precision temperature readings with an average error of 0.97 °C, 1.33 °C, and 1.27 °C for FBG sensors on each battery cell, surpassing traditional thermocouple and platinum resistance sensors in some circumstances. The temperature response of FBGs positioned between battery cells demonstrates that, in addition to sensing temperature at the cell level, temperature data can be effectively acquired between cells, suggesting that FBGs may be used to monitor the heat radiated from individual cells in a battery pack.

KW - FOS

KW - FBG

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KW - lithium-ion

KW - battery

KW - temperature monitoring

KW - guide tube

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Individual cell-level temperature monitoring of a lithium-ion battery pack

Abstract

Keywords

UN SDGs

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