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Effect of Unbalanced Cells in Lithium-ion Battery Pack Performance and SOC Estimation

Chauhan, Shivam R. ; Kumar, Krishna LU orcid ; Nadarajan, Sivakumar ; Vaiyapuri, Viswanathan and Mohamed Halick, Mohamed Sathik (2024) 12th International Conference on Internet of Everything, Microwave, Embedded, Communication and Networks, IEMECON 2024 In IEMECON 2024 - 12th International Conference on Internet of Everything, Microwave, Embedded, Communication and Networks p.1-6
Abstract

This paper mainly focuses on the effect of cell unbalancing on the overall performance of a battery pack, as well as the challenges associated with designing a protection system for the Battery Management System (BMS). With the increasing trend towards fully electric aircraft, cars, buses, bikes, etc., the battery pack has become the sole power source for these vehicles. Consequently, it's imperative for the battery pack to possess high efficiency and a robust protection system. To enhance efficiency, the battery pack must be fully utilized, meaning that the maximum amount of charge stored in it should be used for useful work. This can only be achieved when all cells in the battery pack are charged and discharged at the same rate,... (More)

This paper mainly focuses on the effect of cell unbalancing on the overall performance of a battery pack, as well as the challenges associated with designing a protection system for the Battery Management System (BMS). With the increasing trend towards fully electric aircraft, cars, buses, bikes, etc., the battery pack has become the sole power source for these vehicles. Consequently, it's imperative for the battery pack to possess high efficiency and a robust protection system. To enhance efficiency, the battery pack must be fully utilized, meaning that the maximum amount of charge stored in it should be used for useful work. This can only be achieved when all cells in the battery pack are charged and discharged at the same rate, ensuring homogeneous heat dissipation. Cell balancing mechanisms are employed to achieve this balance, ensuring all cells have the same charge/discharge rate. The paper discusses various scenarios, including balanced, unbalanced, worse, and practical methods of balancing conditions. The results demonstrate how balancing impacts pack performance and helps in estimating the battery pack's State of Charge (SOC).

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Please use this url to cite or link to this publication:
author
; ; ; and
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Battery Pack Degradation, BMS, Cell Balancing, Condition Monitoring, State of Charge (SOC)
host publication
IEMECON 2024 - 12th International Conference on Internet of Everything, Microwave, Embedded, Communication and Networks
series title
IEMECON 2024 - 12th International Conference on Internet of Everything, Microwave, Embedded, Communication and Networks
editor
Ranjan, Prashant and Sharma, Pradeep Kumar
pages
1 - 6
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
conference name
12th International Conference on Internet of Everything, Microwave, Embedded, Communication and Networks, IEMECON 2024
conference location
Hybrid, Jaipur, India
conference dates
2024-10-24 - 2024-10-26
external identifiers
  • scopus:85218122417
ISBN
9798350387315
DOI
10.1109/IEMECON62401.2024.10846650
language
English
LU publication?
no
additional info
Publisher Copyright: © 2024 IEEE.
id
a38fdb5f-6b2b-4388-aeb5-361b3ec93a28
date added to LUP
2025-05-16 09:25:13
date last changed
2025-05-17 03:32:32
@inproceedings{a38fdb5f-6b2b-4388-aeb5-361b3ec93a28,
  abstract     = {{<p>This paper mainly focuses on the effect of cell unbalancing on the overall performance of a battery pack, as well as the challenges associated with designing a protection system for the Battery Management System (BMS). With the increasing trend towards fully electric aircraft, cars, buses, bikes, etc., the battery pack has become the sole power source for these vehicles. Consequently, it's imperative for the battery pack to possess high efficiency and a robust protection system. To enhance efficiency, the battery pack must be fully utilized, meaning that the maximum amount of charge stored in it should be used for useful work. This can only be achieved when all cells in the battery pack are charged and discharged at the same rate, ensuring homogeneous heat dissipation. Cell balancing mechanisms are employed to achieve this balance, ensuring all cells have the same charge/discharge rate. The paper discusses various scenarios, including balanced, unbalanced, worse, and practical methods of balancing conditions. The results demonstrate how balancing impacts pack performance and helps in estimating the battery pack's State of Charge (SOC).</p>}},
  author       = {{Chauhan, Shivam R. and Kumar, Krishna and Nadarajan, Sivakumar and Vaiyapuri, Viswanathan and Mohamed Halick, Mohamed Sathik}},
  booktitle    = {{IEMECON 2024 - 12th International Conference on Internet of Everything, Microwave, Embedded, Communication and Networks}},
  editor       = {{Ranjan, Prashant and Sharma, Pradeep Kumar}},
  isbn         = {{9798350387315}},
  keywords     = {{Battery Pack Degradation; BMS; Cell Balancing; Condition Monitoring; State of Charge (SOC)}},
  language     = {{eng}},
  pages        = {{1--6}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEMECON 2024 - 12th International Conference on Internet of Everything, Microwave, Embedded, Communication and Networks}},
  title        = {{Effect of Unbalanced Cells in Lithium-ion Battery Pack Performance and SOC Estimation}},
  url          = {{http://dx.doi.org/10.1109/IEMECON62401.2024.10846650}},
  doi          = {{10.1109/IEMECON62401.2024.10846650}},
  year         = {{2024}},
}