Experimental study on thermal runaway of fully charged and overcharged lithium-ion batteries under adiabatic and side-heating test

Zhao, Cuihua; Wang, Ting‐Hua; Huang, Zheng; Wu, Jing‐Yun; Zhou, Hongwei; Ma, Mina; Xu, Jiajia; Wang, Zhaoyu; Li, Huang; Sun, Jinhua; Wang, Qingsong

doi:10.1016/j.est.2021.102519

Cited by 31 publications

(10 citation statements)

References 37 publications

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“…However, for lithium-ion batteries, which are completely closed systems, monitoring of external parameters does not allow for a fully accurate simulation of them, nor does it accurately reflect their internal electrochemical changes, making it impossible for modern BMSs to fully assess the potential thermal runaway risk of a single cell. Reference [14] proposes that monitoring the internal state of the battery improves the identification parameters required for state estimation in modern BMS, allowing for a more accurate assessment of the battery's thermal runaway risk, which is critical in the early detection of thermal runaway in Li-ion batteries. In [15], a simulation study of the thermal characteristics of a Li FePO4 Li-ion battery with a capacity of 20 A-h found that the temperature difference between the internal and surface temperature of the battery could reach up to 20 °C in the large multiplier discharge state and concluded that it was difficult to truly reflect the true state of the Li-ion battery by measuring the surface temperature of the battery.…”

Section: Ermal Runaway Warning Technology Based On Internalmentioning

confidence: 99%

“…e safety valve is the key to releasing the high-pressure gas build-up in a timely manner since the battery has internal conditions for high-pressure gas build-up. If the safety valve can be opened before the battery case ruptures and releases enough of the high-pressure gas generated during thermal runaway, the battery will not explode; if the safety valve is not opened in time, an explosion may occur [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Research on the Early Warning Mechanism for Thermal Runaway of Lithium-Ion Power Batteries in Electric Vehicles

Wang

Jun-rui

Zhang

2022

Security and Communication Networks

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Lithium-ion power batteries are critical to the macrostrategy of new energy vehicles, and safety concerns such as thermal runaway remain a major bottleneck in the productization and industrialization of lithium batteries. Based on COMSOL Multiphasic, an electrochemical-thermal coupling model for lithium-ion power batteries is created, as well as a thermal model for thermal runaway. A comparative study on lithium-ion power batteries was conducted using this model under on-board conditions, high rate cyclic charging and discharging conditions, and thermal abuse conditions. The temperature rise rate, average temperature, current, and voltage of the lithium-ion power battery and their correlation with thermal runaway are investigated. The results show that the temperature rise rate can significantly characterize the occurrence of thermal runaway, and when the temperature rise rate exceeds 1°C/s, the lithium-ion power battery has a high probability of thermal runaway. In addition, when the average temperature exceeds 80°C, there is a potential risk of thermal runaway in Li-ion power batteries. The results of the study show that high temperatures take longer to trigger thermal runaway, and the battery is slower to warm up. The time it takes for thermal runaway to occur, the maximum temperature reached, and the maximum voltage are all strongly connected to the overcharge flow under overload abuse conditions. The shorter the time it takes for thermal runaway to occur and the greater the maximum temperature and voltage attained, the larger the overcharge current.

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Section: Ermal Runaway Warning Technology Based On Internalmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on the Early Warning Mechanism for Thermal Runaway of Lithium-Ion Power Batteries in Electric Vehicles

Wang

Jun-rui

Zhang

2022

Security and Communication Networks

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“…The overcharge test demonstrated the effectiveness of cell safety features and protections offered by the CID against overcharge conditions. When a cell is charged beyond its manufacturer-recommended voltage limit, the capability of the anode to accommodate lithium ions is exceeded, leading to deposition of lithium metal on its surface and a reduction in thermal stability. , In addition to this, cathode destabilization with release of oxygen and high temperatures are experienced. Cells with the CID offered protection against overcharge, as in the case of cells from manufacturer A.…”

Section: Overcharge Testmentioning

confidence: 99%

Safety and Quality Issues of Counterfeit Lithium-Ion Cells

Joshi¹,

Azam

Juarez-Robles

et al. 2023

ACS Energy Lett.

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Lithium-ion batteries continue to transform consumer electronics, mobility, and energy storage sectors, and the applications and demands for batteries keep growing. Supply limitations and costs may lead to counterfeit cells in the supply chain that could affect quality, safety, and reliability of batteries. Our research included studies of counterfeit and low-quality lithium-ion cells, and our observations on the differences between these and original ones, as well as the significant safety implications, are discussed. The counterfeit cells did not include internal protective devices such as the positive temperature coefficient or current interrupt devices that typically offer protection against external short circuits and overcharge conditions, respectively, in cells from original manufacturers. Poor-quality materials and lack of engineering knowledge were also evident on analyses of the electrodes and separators from low-quality manufacturers. When the low-quality cells were subjected to off-nominal conditions, they experienced high temperature, electrolyte leakage, thermal runaway, and fire. In contrast, the authentic lithium-ion cells performed as expected. Recommendations are provided to identify and avoid counterfeit and low-quality lithium-ion cells and batteries.

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“…Three crucial temperatures (T s , the cell's self-heating temperature (dT/dt $ 0.02 °C min −1 ); T r , the cell's thermal runaway temperature (dT/dt $ 2 °C min −1 ); T m , the cell's maximum temperature during testing) were determined in the ARC tests. 20,21 Table 3 lists the values of several crucial parameters. As shown in Fig.…”

Section: Impact Of Safety Valves On the Thermal Runaway Behaviors Of ...mentioning

confidence: 99%

Impact of safety valves on thermal runaway characteristics of 21 700-size lithium-ion cells

2023

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Experimental study on thermal runaway of fully charged and overcharged lithium-ion batteries under adiabatic and side-heating test

Cited by 31 publications

References 37 publications

Research on the Early Warning Mechanism for Thermal Runaway of Lithium-Ion Power Batteries in Electric Vehicles

Research on the Early Warning Mechanism for Thermal Runaway of Lithium-Ion Power Batteries in Electric Vehicles

Safety and Quality Issues of Counterfeit Lithium-Ion Cells

Impact of safety valves on thermal runaway characteristics of 21 700-size lithium-ion cells

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