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Experimental Study of Thermal Runaway Process of 50 Ah Prismatic Nickel-Rich Battery

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Listed:
  • Ningning Wei

    (College of Locomotive and Rolling Stock Engineering, Dalian Jiaotong University, Dalian 116028, China)

  • Minghai Li

    (College of Locomotive and Rolling Stock Engineering, Dalian Jiaotong University, Dalian 116028, China)

Abstract

Hazardous combustion and explosions during thermal runaway (TR) processes in lithium-ion batteries (LIBs) present a significant limitation to their widespread adoption. The objective of this study was to quantitatively reveal the eruption characteristics of LIBs. A commercially available prismatic cell with a capacity of 50 Ah was employed, featuring Li(Ni 0.6 Co 0.2 Mn 0.2 )O 2 as the cathode material and graphite as the anode material. The investigation focused on the thermal runaway behavior at 100% state of charge (SOC). Three replicates of thermal runaway experiments were conducted within a 1000 L lithium battery adiabatic experimental chamber (AEC) under a nitrogen atmosphere, and the thermal runaway moments were captured using a high-speed camera. The ejection velocity of smoke during the opening of the safety valve was approximately 40 m/s; within an extremely short time frame following the opening of the safety valve, the jet stream temperature reached a peak value of 340.6 ± 42.0 °C; the duration of the ultra-high-speed jet was 12.0 ± 1.0 s, the high-speed jet lasted 9.9 ± 2.2 s, and the slow-speed jet persisted for 32.1 ± 3.0 s, resulting in an overall ejection duration of 53.9 ± 6.0 s.

Suggested Citation

  • Ningning Wei & Minghai Li, 2023. "Experimental Study of Thermal Runaway Process of 50 Ah Prismatic Nickel-Rich Battery," Energies, MDPI, vol. 16(16), pages 1-13, August.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:16:p:5967-:d:1216354
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    References listed on IDEAS

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    1. Fu, Yangyang & Lu, Song & Shi, Long & Cheng, Xudong & Zhang, Heping, 2018. "Ignition and combustion characteristics of lithium ion batteries under low atmospheric pressure," Energy, Elsevier, vol. 161(C), pages 38-45.
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