Effects of discharge state on mechanical responses and failure behaviors of lithium-ion batteries under mechanical abuse conditions

ZHU Yejun; LOU Benjie; DENG Xianpan; MENG Kangpei; CHEN Xiaoping

doi:10.11883/bzycj-2024-0321

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ZHU Yejun, LOU Benjie, DENG Xianpan, MENG Kangpei, CHEN Xiaoping. Effects of discharge state on mechanical responses and failure behaviors of lithium-ion batteries under mechanical abuse conditions[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2024-0321

Citation:

ZHU Yejun, LOU Benjie, DENG Xianpan, MENG Kangpei, CHEN Xiaoping. Effects of discharge state on mechanical responses and failure behaviors of lithium-ion batteries under mechanical abuse conditions[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2024-0321

Citation:

ZHU Yejun, LOU Benjie, DENG Xianpan, MENG Kangpei, CHEN Xiaoping. Effects of discharge state on mechanical responses and failure behaviors of lithium-ion batteries under mechanical abuse conditions[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2024-0321

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Effects of discharge state on mechanical responses and failure behaviors of lithium-ion batteries under mechanical abuse conditions

doi: 10.11883/bzycj-2024-0321

1.
Department of Mechanical Engineering, Ningbo University of Technology, Ningbo 315016, Zhejiang, China
2.
School of Energy and Electrical Engineering, Chang’an University, Xi’an 710000, Shaanxi, China
3.
Viridi E-Mobility Technology (Ningbo) Co., Ltd., Ningbo 315336, Zhejiang, China
4.
Zhejiang Key Laboratory of Intelligent Vehicle Domain Safety, Geely Automobile Research Institute (Ningbo) Co., Ltd., Ningbo 315336, Zhejiang, China

Received Date: 2024-08-31
Rev Recd Date: 2024-11-01

Available Online: 2024-11-04

Abstract

Abstract

This investigation seeks to elucidate the impact of various discharge states on the dynamic mechanical responses and failure mechanisms of lithium-ion batteries through a comprehensive experimental study. Employing quasi-static compression tests, the research systematically analyzes the compression characteristics and safety performance of lithium-ion batteries preset to specific discharge levels. These tests were conducted at critical junctures: during discharge, following a 1-hour rest period, and after a 24-hour rest period. This methodology enabled a detailed examination of the force-displacement response characteristics, ultimate load-bearing capacity, and overall safety behaviors under varying electrochemical states. The experimental findings indicate that batteries in a discharged state exhibit lower force-displacement curves, suggesting a decrease in structural stiffness attributable to the electro-chemical reaction inside the battery during the discharge process. Notably, these batteries demonstrated a higher maximum load-bearing capacity compared to those tested after rest periods. Additionally, batteries undergoing compression tests in the midst of discharge were more susceptible to catastrophic failures, such as explosions, whereas those allowed to rest showed significantly enhanced safety characteristics. Further microscopic analysis using Scanning Electron Microscopy (SEM) provided insights into the internal structural changes, revealing extensive damage to electrode particles in batteries tested in the discharged state compared to those tested post-rest. The observed damage and increased risk of mechanical failure are primarily attributed to diffusive stresses generated during the discharge process, which accumulate and intensify the vulnerability of the battery structure under mechanical loads. This study contributes valuable experimental evidence and theoretical insights that are crucial for advancing the understanding of the mechanical integrity and safety of lithium-ion batteries under operational stresses. The findings underscore the importance of considering discharge states in the safety design and evaluation of lithium-ion batteries, potentially leading to enhanced durability and safer application in practical scenarios.
- discharge state,
- battery safety,
- compression testing,
- force-displacement curve,
- diffusive stress

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References(16)

References

[1]	许骏, 王璐冰, 刘冰河. 锂离子电池机械完整性研究现状和展望 [J]. 汽车安全与节能学报, 2017, 8(1): 15–29. DOI: 10.3969/j.issn.1674-8484.2017.01.002. XU J, WANG L B, LIU B H. Review for mechanical integrity of lithium-ion battery [J]. Journal of Automotive Safety and Energy, 2017, 8(1): 15–29. DOI: 10.3969/j.issn.1674-8484.2017.01.002.
[2]	LIU B H, JIA Y K, YUAN C H, et al. Safety issues and mechanisms of lithium-ion battery cell upon mechanical abusive loading: a review [J]. Energy Storage Materials, 2020, 24: 85–112. DOI: 10.1016/j.ensm.2019.06.036.
[3]	SAHRAEI E, HILL R, WIERZBICKI T. Calibration and finite element simulation of pouch lithium-ion batteries for mechanical integrity [J]. Journal of Power Sources, 2012, 201: 307–321. DOI: 10.1016/j.jpowsour.2011.10.094.
[4]	ZHU J E, LUO H L, LI W, et al. Mechanism of strengthening of battery resistance under dynamic loading [J]. International Journal of Impact Engineering, 2019, 131: 78–84. DOI: 10.1016/j.ijimpeng.2019.05.003.
[5]	XU J, LIU B H, WANG L B, et al. Dynamic mechanical integrity of cylindrical lithium-ion battery cell upon crushing [J]. Engineering Failure Analysis, 2015, 53: 97–110. DOI: 10.1016/j.engfailanal.2015.03.025.
[6]	LIU B H, YIN S, XU J. Integrated computation model of lithium-ion battery subject to nail penetration [J]. Applied Energy, 2016, 183: 278–289. DOI: 10.1016/j.apenergy.2016.08.101.
[7]	WANG G W, ZHANG S, LI M, et al. Deformation and failure properties of high-Ni Lithium-Ion battery under axial loads [J]. Materials, 2021, 14(24): 7844. DOI: 10.3390/ma14247844.
[8]	ZHENG G, TAN L L, TIAN G L, et al. Dynamic crashing behaviors of prismatic lithium-ion battery cells [J]. Thin-Walled Structures, 2023, 192: 110902. DOI: 10.1016/j.tws.2023.110902.
[9]	YU D, REN D S, DAI K R, et al. Failure mechanism and predictive model of lithium-ion batteries under extremely high transient impact [J]. Journal of Energy Storage, 2021, 43: 103191. DOI: 10.1016/j.est.2021.103191.
[10]	HU L L, ZHANG Z W, ZHOU M Z, et al. Crushing behaviors and failure of packed batteries [J]. International Journal of Impact Engineering, 2020, 143: 103618. DOI: 10.1016/j.ijimpeng.2020.103618.
[11]	SANTOSA S P, NIRMALA T. Numerical and experimental validation of fiber metal laminate structure for lithium-ion battery protection subjected to high-velocity impact loading [J]. Composite Structures, 2024, 332: 117924. DOI: 10.1016/j.compstruct.2024.117924.
[12]	ZHOU D, LI H G, LI Z H, et al. Toward the performance evolution of lithium-ion battery upon impact loading [J]. Electrochimica Acta, 2022, 432: 141192. DOI: 10.1016/j.electacta.2022.141192.
[13]	LIU Y J, XIA Y, XING B B, et al. Mechanical-electrical-thermal responses of lithium-ion pouch cells under dynamic loading: a comparative study between fresh cells and aged ones [J]. International Journal of Impact Engineering, 2022, 166: 104237. DOI: 10.1016/j.ijimpeng.2022.104237.
[14]	WANG T, CHEN X P, CHEN G, et al. Investigation of mechanical integrity of prismatic lithium-ion batteries with various state of charge [J]. Journal of Electrochemical Energy Conversion and Storage, 2021, 18(3): 031002. DOI: 10.1115/1.4048330.
[15]	CHEN X P, WANG T, ZHANG Y, et al. Dynamic behavior and modeling of prismatic lithium-ion battery [J]. International Journal of Energy Research, 2020, 44(4): 2984–2997. DOI: 10.1002/er.5126.
[16]	EDGE J S, O’KANE S, PROSSER R, et al. Lithium ion battery degradation: what you need to know [J]. Physical Chemistry Chemical Physics, 2021, 23(14): 8200–8221. DOI: 10.1039/D1CP00359C.