以石蜡为相变材料、苯乙烯-乙烯/丁烯-苯乙烯嵌段共聚物为弹性载体、石墨烯为导热增强剂,制备了一种柔性复合相变材料(FCPCM),对FCPCM用于锂离子电池热管理的效果进行了模拟研究。结果表明:与空气自然对流热管理手段相比,将FCPCM贴敷于锂离子电池表面进行被动式控温,可使锂离子电池表面中心最高温度至少降低1.89℃;在一定范围内增大FCPCM的导热系数和厚度,可减小电池表面中心最高温度和电池厚度方向的温差;FCPCM与锂离子电池之间的接触热阻也明显影响热管理效果,随着接触热阻增大,热管理效果下降。
A flexible composite phase change material (FCPCM) was prepared using paraffin as the phase change material,styrene-ethylene/butylene-styrene block copolymer as the elastic carrier,and graphene as the thermal conductivity enhancer,and a simulation study was conducted to investigate the effect of the FCPCM for thermal management of lithium-ion batteries.The results showed that,compared with natural air convection thermal management,applying FCPCM on the surface of Lithium-ion batteries for passive temperature control could reduce the maximum temperature at the center of the Lithium-ion battery surface by at least 1.89℃.Increasing the thermal conductivity and thickness of FCPCM within a certain range could reduce the temperature difference between the maximum temperature at the center of the battery surface and the direction of the battery thickness.The contact thermal resistance between the FCPCM and the Lithium-ion battery also significantly affected the thermal management effect,which decreased as the contact thermal resistance increased.
[1] Shahbaz M,Raghutla C,Chittedi K R,et al.The effect of renewable energy consumption on economic growth:evidence from the renewable energy country attractive index[J].Energy,2020,207:118162.
[2] Tran M K,Akinsanya M,Panchal S,et al.Design of a hybrid electric vehicle powertrain for performance optimization considering various powertrain components and configurations[J].Vehicles,2020,3(1):20-32.
[3] Ouyang D,Liu J,Chen M,et al.An experimental study on the thermal failure propagation in lithium-ion battery pack[J].Journal of the Electrochemical Society,2018,165(10):2184-2193.
[4] Wu W,Yang X,Zhang G,et al.An experimental study of thermal management system using copper mesh-enhanced composite phase change materials for power battery pack[J].Energy,2016,113:909-916.
[5] 钟国彬,王羽平,王超,等.大容量锂离子电池储能系统的热管理技术现状分析[J].储能科学与技术,2018,7(2):203-210.
[6] Väyrynen A,Salminen J.Lithium ion battery production[J].Journal of Chemical Thermodynamics,2011,46:80-85.
[7] Zhao Y,Zou B,Li C,et al.Active cooling based battery thermal management using composite phase change materials[J].Energy Procedia,2019,158:4933-4940.
[8] 李志扬,鲁文凡,吕帅帅,等.电动汽车动力电池组热管理系统研究进展[J].化工新型材料,2017,45(8):29-31.
[9] Floros M C,Narine S S.Latent heat storage using renewable saturated diesters as phase change materials[J].Energy,2016,115:924-930.
[10] Zhang P,Xiao X,Ma Z W.A review of the composite phase change materials:fabrication,characterization,mathematical modeling and application to performance enhancement[J].Applied Energy,2016,165:472-510.
[11] Hallaj S A,Selman J R.A novel thermal management system for electric vehicle batteries using phase-change material[J].Journal of the Electrochemical Society,2019,147(9):3231-3236.
[12] 靳鹏超,王世学.一种使用相变材料的新型电动汽车电池热管理系统[J].化工进展,2014,33(10):2608-2612.
[13] 张云芳,李建立,吴立志.动力电池相变控温材料关键问题分析[J].化工新型材料,2022,50(2):258-264.
[14] Huang Q Q,Li X X,Zhang G Q,et al.Flexible composite phase change material with anti-leakage and anti-vibration properties for battery thermal management[J].Applied Energy,2022,309:118434.
[15] 陈炎丰.聚合物相变材料的制备及其应用研究[D].广州:华南理工大学,2019.
[16] Peng S,Fuchs A,Wirtz R A.Polymeric phase change compo-sites for thermal energy storage[J].J Appl Polym Sci,2004,93(3):1240-1251.
[17] Luo C Y,Zuo J D.Property of POE,EVA and EPDM encapsulating paraffin as form stable phase change materials[J].Materials Research Innovations,2013,17(1):58-61.
[18] 潘仲鸣.基于CFD的车用动力锂电池组散热结构优化研究[D].深圳:中国科学院大学(中国科学院深圳先进技术研究院),2019.
[19] 许建青.锂离子动力电池热状态研究[D].杭州:浙江大学,2016.
[20] Bernardi D,Pawlikowski E,Newman J.A general energy ba-lance for battery systems[J].Journal of the Electrochemical Society,1985,132(1):5-12.
[21] 柯彬彬.圆管外石蜡相变传热过程数值模拟及传热强化[D].镇江:江苏大学,2016.
[22] Rao Z,Wang S,Zhang G.Simulation and experiment of thermal energy management with phase change material for ageing LiFePO4 power battery[J].Energy Conversion and Management,2011,52(12):3408-3414.
[23] Huang R,Li Z,Hong W,et al.Experimental and numerical study of PCM thermophysical parameters on lithium-ion battery thermal management[J].Energy Reports,2020,6:8-19.
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