Investigation into the effects of emergency spray on thermal runaway propagation within lithium-ion batteries

Huang, Y., Lu, J., Lu, Y. and Liu, B. (2023) Investigation into the effects of emergency spray on thermal runaway propagation within lithium-ion batteries. Journal of Energy Storage, 66, 107505. (doi: 10.1016/j.est.2023.107505)

Abstract

Inhibition a battery's thermal runaway propagation can avoid serious accidents in electric vehicles. Emergency spray has been proven to be effective in suppressing thermal runaway of a single cell, but the effect of inhibiting thermal runaway propagation between multiple batteries still needs further investigation. In this study, the characteristics of thermal runaway propagation was experimentally investigated, and the emergency spray technology, with different cooling durations, was applied in various stages of thermal runaway propagation. The results indicated that the continuous spray could not only reduce the average maximum temperature, but also delay the diffusion among multiple batteries and provide further response time. However, after-combustion was a frequent occurrence when the spray shut down. A correlation model was proposed to evaluate the maximum heat production of lithium-ion batteries by calculating the enthalpy and mass of the reactants and short circuit energy. The required cooling quantity is determined by experiment and verified by experiment. These results could help the development of a cooling strategy for suppressing the thermal runaway propagation effectively with minimum cooling capacity.

• Item Type: Articles
• Additional Information: This study has been supported by the National Natural Science Foundation of China (Grant No: 52076193) and the National Natural Science Foundation of China (Grant No: 12272072). The study is also supported by the Fundamental Research Funds for the Central Universities (226-2022-00101).
• Keywords: thermal runaway propagation, spray cooling, internal short circuit, quality loss
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Lu, Dr Yiji

Creator Roles

Lu, Y.: Methodology, Data curation

• Authors: Huang, Y., Lu, J., Lu, Y., and Liu, B.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: Journal of Energy Storage
• Publisher: Elsevier
• ISSN: 2352-152X
• ISSN (Online): 2352-152X
• Published Online: 04 May 2023
• Copyright Holders: Copyright © 2023 Elsevier Ltd
• First Published: First published in Journal of Energy Storage 66:107505
• Publisher Policy: Reproduced in accordance with the publisher copyright policy