大容量电池组动态浸没式液冷系统冷却性能研究

彭傲; 孙小琴; 彭启; 彭飞; 朱龙云; 王子璇

doi:10.19799/j.cnki.2095-4239.2025.1171

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大容量电池组动态浸没式液冷系统冷却性能研究

储能系统与工程 | 更新时间：2026-07-13

- 大容量电池组动态浸没式液冷系统冷却性能研究
- Research on the cooling performance of the dynamic immersion liquid cooling system for large-capacity battery modules
- 储能科学与技术 2026年15卷第6期页码：2284-2295
- 作者机构：
  
  长沙理工大学能源与动力工程学院，湖南长沙 410114
- 作者简介：
  
  彭傲（2001—），男，硕士研究生，研究方向为动力及储能电池热管理技术，E-mail：pengaoinhere@163.com；
  孙小琴，教授，博士，研究方向为储能设备热管理，E-mail：xiaoqinsun@csust.edu.cn。
- 基金信息：
  
  国家自然科学基金(52578108;52208094);北京市科学技术委员会、中关村科技园区管理委员会项目(Z231100006123010);湖南省科技创新领军人才(2023RC1057)
- DOI：10.19799/j.cnki.2095-4239.2025.1171
  中图分类号： TM 912
- 收稿：2025-12-29，
  
  修回：2026-02-05，
  
  纸质出版：2026-06-28
- 稿件说明：
移动端阅览
彭傲, 孙小琴, 彭启, 等. 大容量电池组动态浸没式液冷系统冷却性能研究[J]. 储能科学与技术, 2026, 15(6): 2284-2295.

PENG Ao, SUN Xiaoqin, PENG Qi, et al. Research on the cooling performance of the dynamic immersion liquid cooling system for large-capacity battery modules[J]. Energy Storage Science and Technology, 2026, 15(6): 2284-2295.
彭傲, 孙小琴, 彭启, 等. 大容量电池组动态浸没式液冷系统冷却性能研究[J]. 储能科学与技术, 2026, 15(6): 2284-2295. DOI： 10.19799/j.cnki.2095-4239.2025.1171.

PENG Ao, SUN Xiaoqin, PENG Qi, et al. Research on the cooling performance of the dynamic immersion liquid cooling system for large-capacity battery modules[J]. Energy Storage Science and Technology, 2026, 15(6): 2284-2295. DOI： 10.19799/j.cnki.2095-4239.2025.1171.

摘要

大容量单体电池在储能行业被广泛运用，但其性能受运行温度显著影响，尤其是快速充放电需求下电池散热性能成为直接影响其应用的关键。本研究提出了一种针对大容量280 Ah LiFePO

储能电池组的动态浸没式液冷系统，探讨了冷却液入口流速、入口温度、挡板布置方式对冷却性能的影响，并以电池最大温度

max

、电池组最大温差∆

max

、散热量与泵功耗比（cost to performance，CTP）为评价指标，对比分析了三种因素的影响效果。结果表明：增设挡板能够增强液冷系统的冷却性能，大小宽度的挡板等距交错排布相较于宽度递增的挡板等距排布分别降低了

max

和∆

max

4.26%、12.42%，CTP降低了10.98%；当入口流速从0.5 m/s增至1.7 m/s，

max

和∆

max

进一步降低了2.64%、3.59%；当入口温度从15℃增至35℃，

max

上升了77.23%，但∆

max

降低了14.17%。研究可知，电池液冷系统的最优方案是大小宽度挡板等距交错排布，冷却液入口流速和温度分别为1.5 m/s和20℃，相比于无挡板的初始方案，其

max

和∆

max

分别降低了29.75%、6.3

3%。本研究结果为大容量储能电池组液冷热管理系统设计提供一定的参考。

Abstract

The large-capacity single batteries that are widely used in the energy-storage industry are greatly affected by the operating temperature. The thermal performance of such batteries thus becomes a key factor in determining the battery applications

especially under the conditions of fast charging or discharging. In this study

we propose a dynamic-immersion liquid-cooling system that is specifically designed for large-capacity 280 Ah LiFePO

energy-storage battery modules. We explored the effects of the coolant flow rate at the inlet

the inlet temperature

and the baffle configuration on the cooling performance

using maximum temperature (

max

)

maximum temperature difference (∆

max

)

and the ratio of heat dissipation to pump-power consumption (cost-to-performance ratio

CTP) as evaluation indicators. We found that the installation of baffles enhances the cooling of the battery. Compared with an arrangement of large

equidistant baffles

an arrangement of alternating-sized baffles reduces

max

by 4.26% and ∆

max

by 12.42%

while decreasing CTP by 10.98%. When the flow rate at the inlet is increased from 0.5 m/s to 1.7 m/s

max

and ∆

max

are further reduced by 2.64% and 3.59%

respectively. When the inlet temperature is increased from 15℃ to 35℃

max

is increased by 77.23%

and ∆

max

is decreased by 14.17%. The optimal combination for a liquid-cooling system is an arrangement of alternating-sized baffles

with the coolant flow rate at the inlet set to 1.5 m/s and the temperature to 20℃. Compared with the initial combination without baffles

this optimal scheme reduces

max

by 29.75% and ∆

max

by 6.33%. This research pro

vides a useful reference for a liquid-cooling thermal-management system for a large-scale storage-battery module.

关键词

Keywords

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