Comparative study on the thermal runaway characteristics of Li(NixCoyMnz)O2 batteries

Wei, Ningning; Zhang, Fengqin; Zhang, Wei; Li, Xin

doi:10.1016/j.heliyon.2024.e31203

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2024

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Cited by 2 publications

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Optimisation of electrochemical energy storage based on deep learning algorithm

Liao,

Zhang,

Han

et al. 2024

2024 6th International Conference on Energy, Power and Grid (ICEPG)

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Optimisation of electrochemical energy storage based on deep learning algorithm

Liao,

Zhang,

Han

et al. 2024

2024 6th International Conference on Energy, Power and Grid (ICEPG)

View full text Add to dashboard Cite

Experimental Study on Thermal Runaway Characteristics of High-Nickel Ternary Lithium-Ion Batteries under Normal and Low Pressures

Jin,

Meng,

Zhao

et al. 2024

Batteries

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High-nickel (Ni) ternary lithium-ion batteries (LIBs) are widely used in low-pressure environments such as in the aviation industry, but their attribute of high energy density poses significant fire hazards, especially under low pressure where thermal runaway behavior is complex, thus requiring relevant experiments. This study investigates the thermal runaway characteristics of LiNi0.8Mn0.1Co0.1O2 (NCM811) 18650 LIBs at different states of charge (SOCs) (75%, 100%) under various ambient pressures (101 kPa, 80 kPa, 60 kPa, 40 kPa). The results show that, as the pressure is decreased from 101 kPa to 40 kPa, the onset time of thermal runaway is extended by 28.2 s for 75% SOC and by 40.8 s for 100% SOC; accordingly, the onset temperature of thermal runaway increases by 19.3 °C for 75% SOC and by 33.5 °C for 100% SOC; the maximum surface temperature decreases by 70.8 °C for 75% SOC and by 68.2 °C for 100% SOC. The cell mass loss and loss rate slightly decrease with reduced pressure. However, ambient pressure has little impact on the time and temperature of venting as well as the voltage drop time. SEM/EDS analysis verifies that electrolyte evaporates faster under low pressure. Furthermore, the oxygen concentration is lower under low pressure, which consequently leads to a delay in thermal runaway. This study contributes to understanding thermal runaway characteristics of high-Ni ternary LIBs and provides guidance for their safe application in low-pressure aviation environments.

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Comparative study on the thermal runaway characteristics of Li(NixCoyMnz)O2 batteries

Cited by 2 publications

References 36 publications

Optimisation of electrochemical energy storage based on deep learning algorithm

Optimisation of electrochemical energy storage based on deep learning algorithm

Experimental Study on Thermal Runaway Characteristics of High-Nickel Ternary Lithium-Ion Batteries under Normal and Low Pressures

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