Thermal runaway behavior of nickel–manganese–cobalt 18650 lithium-ion cells induced by internal and external heating failures

Yan, Haotian; Marr, Kevin C.; Ezekoye, Ofodike A.

doi:10.1016/j.est.2021.103640

Cited by 14 publications

(2 citation statements)

References 14 publications

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“…For this investigation, the central battery in the LIB pack (cell 3) is set to have a thermal runaway occurring at about 1000 s, whilst the other fours cells work under the WLTP drive cycle. The temperature profile of cell 3-shown in Figure 16-is obtained from Yan et al [40], and read to the Ansys Fluent 2023 R1 using UDF. The results for three CPCMs are depicted in Figure 17.…”

Section: Cell Thermal Runaway Eventmentioning

confidence: 99%

Numerical Investigation of Thermal Management of a Large Format Pouch Battery Using Combination of CPCM and Liquid Cooling

Xu,

Ma,

Souri

et al. 2024

Batteries

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As electric vehicles (EVs) gain market dominance, ensuring safety during the battery usage is crucial. This paper presents a new thermal management approach to address the battery heat accumulation challenge through a novel combination of composite phase change material (CPCM) with liquid cooling systems. An optimised hybrid cooling model is developed to evaluate the proposed battery thermal management system (BTMS) under high-temperature and high-power conditions. Benchmark studies are conducted to assess the impact of inlet position, inlet flow rate, and flow channel distribution on the cooling performance to achieve a uniform temperature distribution within the battery. The optimised BTMS, consisting of a five-cell battery pack, demonstrates a maximum temperature of 41.15 °C and a temperature difference of 4.89 °C in a operating condition at 36 °C with a discharge rate of 3 C. The BTMS outperforms the initial model, reducing the maximum temperature by 1.5%, temperature difference by 5%, and liquid fraction by 13%, with a slight (1.3%) increase in weight. The cooling performance is most efficient at a liquid flow rate of 0.1 m/s, minimising energy consumption. The proposed BTMS with CPCM-3 is also sufficient enough to keep the battery pack under a thermal runaway event. Overall, the theoretical simulation highlights the BTMS’s ability to effectively control battery temperatures and temperature differences, ensuring safe operation during high-temperature and high-power conditions in practical EV usage.

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Section: Cell Thermal Runaway Eventmentioning

confidence: 99%

Numerical Investigation of Thermal Management of a Large Format Pouch Battery Using Combination of CPCM and Liquid Cooling

Xu,

Ma,

Souri

et al. 2024

Batteries

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“…During TR, due to the abrupt burst of the exothermic reactions, the chemical and heat distribution are probably uneven along the battery structures. [98,100] The TR measurements, especially the temperatures, can be significantly influenced by thermocouple positions, [77] abuse test conditions, [101][102][103] battery dimensions and formats, [104,105] and other external factors. This causes difficulties in comparing the TR results according to different literatures.…”

Section: The Intense Tr Behavior Of the He-libsmentioning

confidence: 99%

Challenges and Opportunities to Mitigate the Catastrophic Thermal Runaway of High‐Energy Batteries

Wang

Feng

Huang

et al. 2023

Advanced Energy Materials

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Li‐ion batteries (LIBs) that promise both safety and high energy density are critical for a new‐energy future. However, recent studies on battery thermal runaway (TR) suggest that the higher the energy is compressed in a battery, the thermal accidents with fires and explosions can occur in a more catastrophic way. This “trade‐off” between energy density and safety poses challenging obstacles toward the future applications of the developing high‐energy chemistries. Herein, the thermal studies on the most appealing high‐energy (HE)‐LIB chemistries are carefully reviewed. The TR characters of the HE‐LIBs, the material thermal failure behaviors as well as the underneath reaction mechanisms, and the most advanced TR mitigation technologies are comprehensively summarized. Moreover, the effectiveness of different TR mitigation routes is analyzed. Based on the analysis, the main challenges for TR mitigation in HE chemistries are further explained. Finally, opinions on the future TR mechanism studies and the promising safety design routes to overcome this intrinsic “trade‐off” between high energy and safety are presented.

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Electrothermal Characterization and Modeling of Lithium-Ion Pouch Cells in Thermal Runaway

2022

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Thermal runaway behavior of nickel–manganese–cobalt 18650 lithium-ion cells induced by internal and external heating failures

Cited by 14 publications

References 14 publications

Numerical Investigation of Thermal Management of a Large Format Pouch Battery Using Combination of CPCM and Liquid Cooling

Numerical Investigation of Thermal Management of a Large Format Pouch Battery Using Combination of CPCM and Liquid Cooling

Challenges and Opportunities to Mitigate the Catastrophic Thermal Runaway of High‐Energy Batteries

Electrothermal Characterization and Modeling of Lithium-Ion Pouch Cells in Thermal Runaway

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