锂离子电池冷却固定一体化冷板散热研究

doi:10.19799/j.cnki.2095-4239.2023.0492

摘要/Abstract

摘要：

基于圆柱状锂离子电池产热特点，设计了一种冷却固定一体化冷板，采用数值模拟方法探究了冷却液入口流量、环境温度和冷却固定孔深度等参数对一体化冷板冷却性能的影响，并与蜂窝状冷板进行了性能比较。结果表明：与蜂窝状冷板相比，冷却固定一体化冷板可以进一步降低锂离子电池组最高温度，并且采用一体化冷板冷却的锂离子电池组最低温度高于同一工况下蜂窝状冷板冷却的电池组最低温度，电池组组内最大温差平均可下降13.3%；一体化冷板的质量较蜂窝状冷板下降9.7%；一体化冷板入口流量从30 mL/min增大到60 mL/min，冷板进出口压损从352 Pa增大到832 Pa，锂离子电池组最高温度、最低温度均明显下降，组内最大温差降低了0.458 K；一体化冷板的冷却固定孔孔深从7 mm增大到13 mm的过程中，锂离子电池组最高温度逐渐下降，最低温度则逐渐上升，电池组组内最大温差下降了20.8%，冷却固定结构重量增加了46.2%；在296.15 K、298.15 K、300.15 K及302.15 K的环境温度下，一个充放电周期结束后，电池组最高、最低温度十分接近，环境温度302.15 K时，电池组最大温差明显高于其他环境温度下电池组最大温差。

关键词: 电池热管理, 动力锂电池, 液体冷却

Abstract:

The study presents the design of an integrated liquid-cooled plate based on the heat generation characteristics of cylindrical lithium-ion batteries. The effects of inlet flow rate, ambient temperature, and depth of cooling fixed hole on the cooling performance of the integrated liquid-cooled plate were investigated through numerical simulations, and the performance was compared with that of the honeycomb liquid-cooled plate. The results showed that the integrated liquid-cooled plate outperforms its honeycomb counterpart in reducing the maximum temperature of the lithium-ion battery pack. Although the minimum temperature of the battery pack remains higher in the integrated system than that in the honeycomb system under similar ambient conditions, the maximum temperature variation within the battery pack diminishes by an average of 13.3% in the integrated system. Additionally, the integrated plate weighs 9.7% less than the honeycomb plate. As the inlet flow rate of the integrated liquid-cooled plate increased from 30 ml/min to 60 ml/min, the maximum and minimum temperatures of the battery pack decreased considerably, accompanied by a reduction in the maximum temperature difference by 0.458 K and an increase in pressure loss from 352 Pa to 832 Pa. Increasing the depth of the cooling fixed hole led to a gradual decline in the maximum temperature and a corresponding increase in the minimum temperature; both lied within the optimal operating range of lithium-ion batteries. As the hole depth increased from 7 mm to 13 mm, the maximum temperature difference in the battery pack decreased by 20.8% and the weight of the cooling fixed structure increased by 46.2%. At the ambient temperatures of 296.15 K, 298.15 K, 300.15 K, and 302.15 K, the maximum and minimum temperatures of the battery pack were very close to each other after a charge-discharge cycle, with the maximum temperature difference of the battery pack exhibiting a peak at 302.15 K, which is higher than that at other temperatures.

Key words: thermal management of battery, power lithium battery, liquid cooling

中图分类号:

TM 911

孙广强, 李志强, 王方, 邓虹, 巴义春. 锂离子电池冷却固定一体化冷板散热研究[J]. 储能科学与技术, 2023, 12(11): 3352-3360.

Guangqiang SUN, Zhiqiang LI, Fang WANG, Hong DENG, Yichun BA. Research on cooling and fixing of lithium-ion battery cooling and fixed integrated cold plate heat dissipation[J]. Energy Storage Science and Technology, 2023, 12(11): 3352-3360.

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参考文献 20

1	吴敬华, 杨菁, 刘高瞻, 等. 固态锂电池十年(2011—2021)回顾与展望[J]. 储能科学与技术, 2022, 11(9): 2713-2745.
	WU J H, YANG J, LIU G Z, et al. Review and prospective of solid-state lithium batteries in the past decade(2011—2021)[J]. Energy Storage Science and Technology, 2022, 11(9): 2713-2745.
2	BÖRNER M, FRIESEN A, GRÜTZKE M, et al. Correlation of aging and thermal stability of commercial 18650-type lithium ion batteries[J]. Journal of Power Sources, 2017, 342: 382-392.
3	KOORATA P K, PANCHAL S, FRASER R, et al. Combined influence of concentration-dependent properties, local deformation and boundary confinement on the migration of Li-ions in low-expansion electrode particle during lithiation[J]. Journal of Energy Storage, 2022, 52: 104908.
4	WU X Y, ZHU Z H, ZHANG H Y, et al. Structural optimization of light-weight battery module based on hybrid liquid cooling with high latent heat PCM[J]. International Journal of Heat and Mass Transfer, 2020, 163: 120495.
5	沈华平, 竺玉强, 杨梓堙, 等. 锂离子电池模组液冷散热设计[J]. 电源技术, 2022, 46(3): 271-275.
	SHEN H P, ZHU Y Q, YANG Z Y, et al. Lithium-ion battery module liquid cooling heat dissipation design[J]. Chinese Journal of Power Sources, 2022, 46(3): 271-275.
6	ZHAO G, WANG X L, NEGNEVITSKY M, et al. A review of air-cooling battery thermal management systems for electric and hybrid electric vehicles[J]. Journal of Power Sources, 2021, 501: 230001.
7	BEHI H, KARIMI D, BEHI M, et al. A new concept of thermal management system in Li-ion battery using air cooling and heat pipe for electric vehicles[J]. Applied Thermal Engineering, 2020, 174: 115280.
8	ZHAO G, WANG X L, NEGNEVITSKY M, et al. An up-to-date review on the design improvement and optimization of the liquid-cooling battery thermal management system for electric vehicles[J]. Applied Thermal Engineering, 2023, 219: 119626.
9	LI Y, BAI M L, ZHOU Z F, et al. Experimental study of liquid immersion cooling for different cylindrical lithium-ion batteries under rapid charging conditions[J]. Thermal Science and Engineering Progress, 2023, 37: 101569.
10	张丹枫, 孙金华, 王青松. 成组结构对锂离子电池相变热管理性能的影响[J]. 储能科学与技术, 2020, 9(5): 1526-1538.
	ZHANG D F, SUN J H, WANG Q S. Effect of module structure on performance of phase change material based Li-ion battery thermal management system[J]. Energy Storage Science and Technology, 2020, 9(5): 1526-1538.
11	LIU H Q, AHMAD S, SHI Y, et al. A parametric study of a hybrid battery thermal management system that couples PCM/copper foam composite with helical liquid channel cooling[J]. Energy, 2021, 231: 120869.
12	WERAGODA D M, TIAN G H, BURKITBAYEV A, et al. A comprehensive review on heat pipe based battery thermal management systems[J]. Applied Thermal Engineering, 2023, 224: 120070.
13	LU M Y, ZHANG X L, JI J, et al. Research progress on power battery cooling technology for electric vehicles[J]. Journal of Energy Storage, 2020, 27: 101155.
14	刘显茜, 孙安梁, 田川. 基于仿生翅脉流道冷板的锂离子电池组液冷散热[J]. 储能科学与技术, 2022, 11(7): 2266-2273.
	LIU X X, SUN A L, TIAN C. Research on liquid cooling and heat dissipation of lithium-ion battery pack based on bionic wings vein channel cold plate[J]. Energy Storage Science and Technology, 2022, 11(7): 2266-2273.
15	HE P, LU H, FAN Y W, et al. Numerical investigation on a lithium-ion battery thermal management system utilizing a double-layered I-shaped channel liquid cooling plate exchanger[J]. International Journal of Thermal Sciences, 2023, 187: 108200.
16	魏士飞. 高密度锂电池组内部热环境模拟研究[D]. 郑州: 中原工学院, 2016.
	WEI S F. Study on thermal environment simulation of high density lithium battery[D]. Zhengzhou: Zhongyuan University of Technology, 2016.
17	AN Z G, ZHANG C J, LUO Y S, et al. Cooling and preheating behavior of compact power lithium-ion battery thermal management system[J]. Applied Thermal Engineering, 2023, 226: 120238.
18	王学章, 李科群. 锂电池叉流流道液冷结构设计及散热特性分析[J]. 物理学报, 2022, 71(18): 184702.
	WANG X Z, LI K Q. Liquid-cooled structure design and heat dissipation characteristics analysis of cross-flow channels for lithium batteries[J]. Acta Physica Sinica, 2022, 71(18): 184702.
19	KONG D P, PENG R Q, PING P, et al. A novel battery thermal management system coupling with PCM and optimized controllable liquid cooling for different ambient temperatures[J]. Energy Conversion and Management, 2020, 204: 112280.
20	LIU Z Q, HUANG J H, CAO M, et al. Experimental study on the thermal management of batteries based on the coupling of composite phase change materials and liquid cooling[J]. Applied Thermal Engineering, 2021, 185: 116415.

项目	密度/(kg/m³)	比热容/[J/(kg·K)]	导热系数/[W/(m·K)]
冷却液	1071	3300	0.384
电芯	1760	1108	3.91(径向)/23(轴向)

项目	一体化冷板	蜂窝状冷板
最高温度平均值/K	301.483	301.598
最低温度平均值/K	300.158	300.065
最大温差平均值/K	1.325	1.533

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[4]	孔为, 金劲涛, 陆西坡, 孙洋. 对称蛇形流道锂离子电池冷却性能[J]. 储能科学与技术, 2022, 11(7): 2258-2265.
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[6]	刘显茜, 孙安梁, 田川. 基于仿生翅脉流道冷板的锂离子电池组液冷散热[J]. 储能科学与技术, 2022, 11(7): 2266-2273.
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[10]	徐余丰, 严加斌, 何建明, 琚正伟, 程革, 郑达, 邹印龙, 叶磊, 王建新. 退役动力锂电池在光储微电网的集成与应用[J]. 储能科学与技术, 2021, 10(1): 349-354.
[11]	蒋聪, 王顺利, 李小霞, 熊鑫. 基于改进EKF算法变温度下的动力锂电池SOC估算[J]. 储能科学与技术, 2020, 9(1): 145-151.
[12]	祝夏雨, 金朝庆, 赵鹏程, 邱景义, 陆林, 明海. 国内外动力锂电池安全性测试标准及规范综述[J]. 储能科学与技术, 2019, 8(2): 428-441.
[13]	赵国柱, 李亮, 招晓荷, 周廷博. 混合动力汽车用锂电池热管理系统[J]. 储能科学与技术, 2018, 7(6): 1146-1151.
[14]	尤若波. 相变材料在动力电池热管理中的应用研究[J]. 储能科学与技术, 2017, 6(5): 1148-1157.
[15]	刘霞, 匡勇, 钱振, 郭成龙, 黄丛亮, 饶中浩. 电池热管理用相变储能材料的研究进展[J]. 储能科学与技术, 2015, 4(4): 365-373.