Research and comprehensive analysis on fire extinguishing of LiFePO4 battery

Wenhao Wang; Shunbing Zhu; Xun Li; Lujia Tao; Jiameng Wu

doi:10.1117/12.2620040

9 December 2021 Research and comprehensive analysis on fire extinguishing of LiFePO₄ battery

Wenhao Wang, Shunbing Zhu, Xun Li, Lujia Tao, Jiameng Wu

Proceedings Volume 12030, Third International Conference on Optoelectronic Science and Materials (ICOSM 2021); 120302K (2021) https://doi.org/10.1117/12.2620040
Event: Third International Conference on Optoelectronic Science and Materials (ICOSM 2021), 2021, Hefei, China

Abstract

In this paper, 20Ah lithium iron phosphate soft pack battery was selected as the research object, carboamide and SDS were used as additives. Through the self-designed experimental platform, the physical and chemical properties of water mist containing additives and the fire extinguishing experiment of lithium-ion battery were carried out. The results show that the water mist can effectively inhibit the fire caused by thermal runaway of lithium-ion battery, and the optimal extinguishing effect is water mist containing 1% SDS, water mist containing 1% carboamide and pure water mist. The numerical simulation of LiFePO₄ battery fire extinguishing was carried out by using FLUENT software. The results show that water mist containing 1% SDS has better fire extinguishing effect than pure water mist. By comparing the simulation results with the experiment, it is concluded that the simulation and experimental errors of each group are within 2s, which verifies the accuracy and reliability of the simulation. Through the fire extinguishing experiment and numerical simulation of LiFePO₄ battery, it provides engineering guidance for fire extinguishing of lithium-ion battery.

Citation Download Citation

Wenhao Wang, Shunbing Zhu, Xun Li, Lujia Tao, and Jiameng Wu "Research and comprehensive analysis on fire extinguishing of LiFePO₄ battery", Proc. SPIE 12030, Third International Conference on Optoelectronic Science and Materials (ICOSM 2021), 120302K (9 December 2021); https://doi.org/10.1117/12.2620040

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