高温环境下储能电池模组浸没式散热研究

Research on Immersion Heat Dissipation of Energy Storage Battery Modules in High Temperature Environments

摘要: 针对储能电池在高温环境下放电的散热问题威胁其安全高效运行。本研究以某电池模组为对象，设计了一种带有缓冲积液腔及梯形分流口的新型散热系统，经数值量化分析，探究不同浸没液、放电倍率及入口流量在高温环境下对其散热性能影响。结果表明合成油散热综合性能佳，且1C放电倍率和入口流量为1.5 L/min时综合效果最优，此时模组在压降ΔP，最大温差ΔT_max及结束温度T_end分别为1.07 kPa，0.95℃，34.77℃。本研究为优化电池模组散热、提升储能系统性能和安全性提供依据。

Abstract: The problem of heat dissipation during discharge of energy storage batteries in high temperature environments poses a threat to their safe and efficient operation. This study focuses on a certain battery module and designs a new type of heat dissipation system with a buffer fluid chamber and a trapezoidal diversion port. Through numerical quantification analysis, the study explores the effects of different immersion liquids, discharge rates, and inlet flow rates on their heat dissipation performance in high temperature environments. The results showed that the comprehensive heat dissipation performance of synthetic oil was excellent, and the optimal comprehensive effect was achieved when the 1C discharge rate and inlet flow rate was 1.5 L/min. At this time, the module had a pressure drop ΔP, maximum temperature difference ΔT_max, and end temperature T_end of 1.07 kPa, 0.95˚C, and 34.77˚C, respectively. This study provides a basis for optimizing the heat dissipation of battery modules, improving the performance and safety of energy storage systems.