Work

Experiments on liquid-immersed thermal runaway management for large energy-stored lithium-ion battery modules

Year: 2025

Type: article

Abstract: In addressing the thermal runaway management in large-capacity 280 Ah lithium-ion battery module for energy storage, a scheme of liquid-immersed thermal management is proposed to probe into the thermal runaway behavior of battery module in this study. The thermal runaway features under settings of immersion and natural convection air cooling, along with variations due to diverse coolant types and thermal runaway triggers. The findings indicate that natural convection air cooling conditions lead to thermal runaway propagation with peak temperatures soaring to 367.8 °C, contrary to immersion cases where no such propagation occurred. Particularly, overheating during overcharge scenarios yields higher peak temperatures (227.1 °C) than those seen in needle puncture tests (214.7 °C). Both hydrocarbon-based synthetic oil and modified silicone oil exhibited comparable capabilities in managing the thermal landscape and curbing thermal runaway, with the former excelling in heat dissipation and the latter in mitigating peak temperature spikes. The smoke duration of battery modules in non-immersed state is the longest (220 s), followed by overcharge thermal runaway in immersed state (130 s) and needle puncture thermal runaway (70 s). These results offer valuable guidance for thermal safety design and performance parameter optimization in battery storage systems.

Source: Thermal Science and Engineering Progress

DOI: 10.1016/j.tsep.2025.104347

Authors: Sheng Lei, Lan Huaiyu, Tao Bojun, Zhang Chunfeng, Zhang Xiaojun, Wang Liyang

Institution: University of Shanghai for Science and Technology

Language: English

Topic: Advanced Battery Technologies Research

Subfield: Automotive Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $3,000