相变材料可利用其相变潜热有效解决储能电池在充放电过程中因温度不均引起的电池热失控问题。采用真空浸渍法,以泡沫铝为封装载体制备了聚乙二醇(PEG)基相变储能材料,首先在泡沫铝基底上原位生长镁铝水滑石构建三维新型封装结构,提高了对有机相变材料PEG的约束作用,同时对基底上的镁铝水滑石进行硅烷偶联剂有机改性,增强其与有机相变材料亲和性。制备的硅烷偶联剂KH570和水滑石改性泡沫铝封装PEG(PEG/K7-LDH/ALF)复合相变材料的相变潜热可达到99J/g,且相较PEG,复合相变材料相变储热时间缩短86.5%,经过Comsol模拟,性能和实验过程中的表现一致,证明复合相变材料导热性优于PEG,可以实现电池表面不均的高温热量的快速吸收,延长电池的使用寿命。
Phase change materials can effectively solve the problem of battery thermal runaway caused by uneven temperature during charging and discharging of energy storage batteries by using their latent heat of phase change.Polyethylene glycol (PEG)-based phase change energy storage materials were prepared by vacuum impregnation method with foam aluminum as the encapsulation carrier.Firstly,a three-dimensional new encapsulation structure was constructed by in-situ growth of Mg-Al hydrotalcite on the foam aluminum substrate,which improved the confinement of the organic phase change material PEG.At the same time,the Mg-Al hydrotalcite on the substrate was organically modified by silane coupling agent to enhance its affinity with organic phase change materials.The phase change latent heat of PEG/K7-LDH/ALF composite phase change material encapsulated with silane coupling agent KH570 and hydrotalcite-modified foam aluminum could reach 99 J/g,and compared with polyethylene glycol PEG,the phase change heat storage time of the composite phase change material was shortened by 86.5%.After Comsol simulation,the performance was consistent with the performance in the experimental process,which proved that the thermal conductivity of the composite phase change material was better than that of polyethylene glycol PEG.This enabled the rapid absorption of uneven high-temperature heat on the surface of the battery and extended the lifespan of battery.
[1] Nasiri M,Hadim H.Advances in battery thermal management:current landscape and future directions[J].Renewable and Sustainable Energy Reviews,2024,200:114611.
[2] Zhang J,Shao D,Jiang L,et al.Advanced thermal management system driven by phase change materials for power lithium-ion batteries:a review[J].Renewable and Sustainable Energy Reviews,2022,159:112207.
[3] Zhao Y,Zou B,Zhang T,et al.A comprehensive review of composite phase change material based thermal management system for lithium-ion batteries[J].Renewable and Sustainable Energy Reviews,2022,167:112667.
[4] Luo J,Zou D,Wang Y,et al.Battery thermal management systems (BTMs) based on phase change material (PCM):acomprehensive review[J].Chemical Engineering Journal,2021,430:132741.
[5] Xi S,Wang L,Xie H,et al.Superhydrophilic modified elastomeric RGO aerogel based hydrated salt phase change materials for effective solar thermal conversion and storage[J].ACS Nano,2022,16(3):3843-3851.
[6] Li J,Long Y,Jing Y,et al.Superhydrophobic multi-shell hollow microsphere confined phase change materials for solar photothermal conversion and energy storage[J].Applied Energy,2024,365:123193.
[7] Lian P,Yan R,Wu Z,et al.Thermal performance of novel form-stable disodium hydrogen phosphate dodecahydrate-based composite phase change materials for building thermal energy storage[J].Advanced Composites and Hybrid Materials,2023,6(2):74.
[8] Zhuli S,Zhou Y,Wang L,et al.Flexible composite phase change materials with enhanced thermal conductivity and mechanical performance for thermal management[J].Journal of Materials Chemistry A,2023,11(35):18832-18842.
[9] 张屹东,张红婴,闻静,等.月桂酸-棕榈酸-石蜡/膨胀石墨定形复合相变材料的制备及性能表征[J].化工新型材料,2025,53(8):229-235.
[10] 方国栋,柯惠珍,李浩浩,等.纳米MgO对聚苯乙烯基相变复合纤维形貌及热学性能的影响[J].化工新型材料,2024,52(6):113-116,121.
[11] Yang X,Li C,Ma Y,et al.High thermal conductivity of porous graphite/paraffin composite phase change material with 3D porous graphite foam[J].Chemical Engineering Journal,2023,473:145364.
[12] Zhang Y,Xie K,Shi J,et al.Dressing paraffin wax/boron nitride phase change composite with a polyethylene“underwear” for the reliable battery safety management[J].Small,2024,20(15):2304886.
[13] Huang Q,Wang S,He J,et al.Experimental design of paraffin/methylated melamine-formaldehyde microencapsulated composite phase change material and the application in battery thermal management system[J].Journal of Materials Science & Technology,2024,169:124-136.
[14] 赵中国,薛嵘,王筹萱,等.石墨烯-碳纳米管-聚乳酸/聚乙二醇相变储能复合材料的制备与温敏响应行为[J].复合材料学报,2024,41(1):250-260.
[15] Zhao Y,Liu T,Wei Z,et al.Towards high performance semi-interpenetrating phase change materials networks via linear polyethylene glycol-based multimerization effect[J].Chemical Engineering Journal,2022,446:136982.
[16] 刘玲伟,邹新全,张鸿,等.三维网笼状聚N-羟甲基丙烯酰胺/聚乙二醇半互穿网络复合相变微球的制备及热性能[J].复合材料学报,2021,38(4):1098-1106.
[17] Hu Z,Zou Y,Xiang C,et al.Stabilized multifunctional phase change materials based on carbonized Cu-coated melamine foam/reduced graphene oxide framework for multiple energy conversion and storage[J].Carbon Energy,2022,4(6):1214-1227.
[18] Dai Z,Zhang G,Xiao Y,et al.High-directional thermally conductive stearic acid/expanded graphite-graphene films for efficient photothermal energy storage[J].Chemical Engineering Journal,2024,484:149203.
[19] Zhang T,Zhang T,Zhang J,et al.Design of stearic acid/graphene oxide-attapulgite aerogel shape-stabilized phase change materials with excellent thermophysical properties[J].Renewable Energy,2021,165:504-513.
[20] 李向辉,刘松阳,白瑞雪,等.建筑节能用癸酸-月桂酸/膨胀蛭石复合相变储热材料的制备及性能[J].辽宁石油化工大学学报,2023,43(3):34-40.
[21] 李威龙,刘松阳,韩杰,等.膨润土/月桂酸/鳞片石墨定型储热材料的制备及性能[J].辽宁石油化工大学学报,2020,40(6):39-44.
[22] 李果,欧阳婷,蒋朝,等.碳纤维-纳米石墨片网络体导热增强石蜡相变储能复合材料的制备及表征[J].复合材料学报,2020,37(5):1130-1137.
[23] 肖鑫,何俊颖,贾洪伟,等.聚乙二醇/膨胀石墨/氮化硼复合相变材料的热物性研究[J].工程热物理学报,2023,44(10):2872-2877.
[24] 万倩,肖浩南,钱京,等.泡沫铁对石蜡相变储热过程的影响[J].储能科学与技术,2020,9(1):94-100.
[25] Zhang H,Wang L,Xi S,et al.3D porous copper foam-based shape-stabilized composite phase change materials for high photothermal conversion,thermal conductivity and storage[J].Renewable Energy,2021,175:307-317.
[26] Zhu S,Ji T,Yang B,et al.Preparation and characterization of PEG/surface-modified layered double hydroxides as a new shape-stabilized phase change material[J].RSC Advances,2019,9(41):23435-23443.
[27] Chang C,Chen G,Wu F,et al.Fabrication and thermal performance of 3D copper-mesh-sintered foam/paraffin phase change materials for solar thermal energy storage[J].Processes,2022,10(5):897.
[28] Ye Q,Tao P,Chang C,et al.Form-stable solar thermal heat packs prepared by impregnating phase-changing materials within carbon-coated copper foams[J].ACS Applied Materials & Interfaces,2019,11(3):3417-3427.
[29] Liang W,Zhu H,Wang R,et al.Superhydrophobic copper foam supported phase change composites with high thermal conductivity for energy storage[J].Materials Research,2018,21:e20170813.
[30] 刘琦,陈立飞,邴乃慈,等.镍泡沫定型相变变材料制备与性能研究[J].上海第二工业大学学报,2022,39(2):158-163.
基金资助
辽宁省应用基础研究项目(2023JH2/101300230)
PDF
