Application of Infrared Thermography in E-Bike Battery Pack Detail Analysis—Case Study
The purpose of this research was to analyze the applicability of infrared thermography in assessing the condition of an e-bike battery. The main challenge was to interpret the surface radiation detected by a thermal imaging camera. In addition to basic challenges of thermography, such as determining...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/7/3444 |
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| author | Hrvoje Glavaš Tomislav Barić Mirko Karakašić Tomislav Keser |
| author_facet | Hrvoje Glavaš Tomislav Barić Mirko Karakašić Tomislav Keser |
| author_sort | Hrvoje Glavaš |
| collection | DOAJ |
| description | The purpose of this research was to analyze the applicability of infrared thermography in assessing the condition of an e-bike battery. The main challenge was to interpret the surface radiation detected by a thermal imaging camera. In addition to basic challenges of thermography, such as determining the emissivity, the angle of image acquisition, the problem of low resolution and thermal inertia, it was necessary to understand the physical behavior of the elements inside the battery and battery pack that respectively determine the dynamics and shape of the thermal pattern. E-bike batteries are mainly composed of 18650 format Li-ion cells, and the topology of the battery cell is related to the energy profile of the system. With the aim of establishing a link between the surface radiation patterns and the parameters of the individual 18650 cells that dictate the internal thermal behavior, a detailed analysis of the battery pack interior, upon its lifetime, was performed. Based on the results of the capacity analysis of the individual cells and determination of the exact position of the cells within the structure of the battery, a visualization and comparison with the thermographic records were performed to determine whether infrared thermography is able to diversify faulty cells. The conclusion of the study is that it is not possible to make a judgment about the thermal pattern expression or the pattern shape based on the estimated capacity values; however, based on the pattern, it is possible to draw a conclusion about the homogeneity of the capacity of the individual battery cells. |
| first_indexed | 2024-03-09T12:07:54Z |
| format | Article |
| id | doaj.art-a62be702587a4f9a9218029d38f9043a |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T12:07:54Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-a62be702587a4f9a9218029d38f9043a2023-11-30T22:55:49ZengMDPI AGApplied Sciences2076-34172022-03-01127344410.3390/app12073444Application of Infrared Thermography in E-Bike Battery Pack Detail Analysis—Case StudyHrvoje Glavaš0Tomislav Barić1Mirko Karakašić2Tomislav Keser3Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, University of Osijek, 31000 Osijek, CroatiaFaculty of Electrical Engineering, Computer Science and Information Technology Osijek, University of Osijek, 31000 Osijek, CroatiaMechanical Engineering Faculty, University of Slavonski Brod, 35000 Slavonski Brod, CroatiaFaculty of Electrical Engineering, Computer Science and Information Technology Osijek, University of Osijek, 31000 Osijek, CroatiaThe purpose of this research was to analyze the applicability of infrared thermography in assessing the condition of an e-bike battery. The main challenge was to interpret the surface radiation detected by a thermal imaging camera. In addition to basic challenges of thermography, such as determining the emissivity, the angle of image acquisition, the problem of low resolution and thermal inertia, it was necessary to understand the physical behavior of the elements inside the battery and battery pack that respectively determine the dynamics and shape of the thermal pattern. E-bike batteries are mainly composed of 18650 format Li-ion cells, and the topology of the battery cell is related to the energy profile of the system. With the aim of establishing a link between the surface radiation patterns and the parameters of the individual 18650 cells that dictate the internal thermal behavior, a detailed analysis of the battery pack interior, upon its lifetime, was performed. Based on the results of the capacity analysis of the individual cells and determination of the exact position of the cells within the structure of the battery, a visualization and comparison with the thermographic records were performed to determine whether infrared thermography is able to diversify faulty cells. The conclusion of the study is that it is not possible to make a judgment about the thermal pattern expression or the pattern shape based on the estimated capacity values; however, based on the pattern, it is possible to draw a conclusion about the homogeneity of the capacity of the individual battery cells.https://www.mdpi.com/2076-3417/12/7/3444e-bikeLi-ion battery18650 cellinfrared thermographybattery pack revival |
| spellingShingle | Hrvoje Glavaš Tomislav Barić Mirko Karakašić Tomislav Keser Application of Infrared Thermography in E-Bike Battery Pack Detail Analysis—Case Study Applied Sciences e-bike Li-ion battery 18650 cell infrared thermography battery pack revival |
| title | Application of Infrared Thermography in E-Bike Battery Pack Detail Analysis—Case Study |
| title_full | Application of Infrared Thermography in E-Bike Battery Pack Detail Analysis—Case Study |
| title_fullStr | Application of Infrared Thermography in E-Bike Battery Pack Detail Analysis—Case Study |
| title_full_unstemmed | Application of Infrared Thermography in E-Bike Battery Pack Detail Analysis—Case Study |
| title_short | Application of Infrared Thermography in E-Bike Battery Pack Detail Analysis—Case Study |
| title_sort | application of infrared thermography in e bike battery pack detail analysis case study |
| topic | e-bike Li-ion battery 18650 cell infrared thermography battery pack revival |
| url | https://www.mdpi.com/2076-3417/12/7/3444 |
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