Experimental Study on the Suppression Effect of Rapid Cooling on Thermal Runaway in LFP Battery Modules

doi:10.3969/j.issn.1008-0198.2026.04.020

Abstract

Abstract: Focousing on chain thermal runaway, a typical hazard in energy storage power stations, its heat propagation process and suppression strategies is investigated. Under simulated thermal abuse conditions induced by a heating plate, thermal runaway is triggered in a single cell within an air-cooled battery module. Liquid nitrogen is applied as an emergency cooling medium to evaluate the effectiveness of external rapid cooling in mitigating inter-cell heat transfer. Based on experimental research on thermal runaway suppression in air-cooled modules, this study identifies typical locations of thermal runaway propagation, selects evaluation indicators for thermal runaway and its propagation characteristics, and a temperature change-centric evaluation model is constructed to achieve quantitative assessment of emergency cooling suppression effects. The findings provide theoretical foundations and methodological support for evaluating and optimizing the safety protection of emergency cooling in energy storage power stations.

Key words: rapid cooling, lithium iron phosphate, battery module, suppressing effect, evaluation framework

CLC Number:

TM911
X932

LIU Meilin, WU Chuanping, CHEN Baohui, ZHOU Tiannian. Experimental Study on the Suppression Effect of Rapid Cooling on Thermal Runaway in LFP Battery Modules[J]. Hunan Electric Power, 2026, 46(4): 152-158.

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