The paraffin-based composites with different mass fractions were prepared by adding nano-boron nitride (BN).The thermophysical properties and application of paraffin/BN in the Li-ion battery thermal management were analyzed.The results showed that it was a physical interaction between BN and paraffin.The melting point and latent heat of paraffin/BN had a certain decrease with the increasing of BN contents.The turning place of the thermal conductivity values was the melting point.Due to the settlement of BN,the thermal conductivity of paraffin/BN with1 wt% BN was the highest,which was 0.3386W/m·K.Paraffin/BN with 1wt% BN was used to study the heat dissipation of Li-ion battery.It was obtained that when the discharge rate was 3C and 5C,the highest temperature of the battery surface using paraffin/BN was reduced by 1.43℃ and 3.39℃,respectively.Acooling effect with 3.5%～7.6% was realized comparing to those of pure paraffin.The maximum temperature difference was respectively reduced by 0.24℃ and 0.35℃,which decreased over 20%.The battery surface temperature using paraffin/BN distributed more evenly than paraffin.Therefore,composite phase change material had good application prospects in battery thermal management.
[1] Rao Z H,Wang S F.A review of power battery thermal energy management[J].Renewable and Sustainable Energy Reviews,2011,15(9):4554-4571.
[2] Kim J,Oh J,Lee H.Review on battery thermal management system for electric vehicles[J].Applied Thermal Engineering,2019,149:192-212.
[3] Wu W,Wang S,Wu W,et al.A critical review of battery thermal performance and liquid based battery thermal management[J].Energy Conversion and Management,2019,182:262-281.
[4] Azizi Y,Sadrameli S M.Thermal management of a LiFePO4 battery pack at high temperature environment using a composite of phase change materials and aluminum wire mesh plates[J].Energy Conversion & Management,2016,128:294-302.
[5] Gao Z,Zhang X,Xiao Y,et al.Influence of coupling of overcharge state and short-term cycle on the mechanical integrity behavior of 18650 Li-ion batteries subject to lateral compression[J].International Journal of Hydrogen Energy,2018,43(10):5261-5271.
[6] Malik M,Dincer I,Rosen M A.Review on use of phase change materials in battery thermal management for electric and hybrid electric vehicles[J].International Journal of Energy Research,2016,40(8):1011-1031.
[7] 马先锋,邹得球,刘小诗,等.动力电池热管理用相变材料的研究进展[J].化工新型材料,2017,45(9):23-25.
[8] Zalba B,MaríN J M A,Cabeza L F,et al.Review on thermal energy storage with phase change:materials,heat transfer analysis and applications[J].Applied Thermal Engineering,2003,23(3):251-283.
[9] Oya T,Nomura T,Tsubota M,et al.Thermal conductivity enhancement of erythritol as PCM by using graphite and nickel particles[J].Applied Thermal Engineering,2013,61(2):825-828.
[10] Samimi F,Babapoor A,Azizi M,et al.Thermal management analysis of a Li-ion battery cell using phase change material loaded with carbon fibers[J].Energy,2016,96:355-371.
[11] 李玉洋,章学来,Munyalo J M,等.正辛酸-癸酸/膨胀石墨低温复合相变材料的制备及热物性研究[J].化工新型材料,2019,47(8):39-43.
[12] Cai W C,Yang W B,Jiang Z N,et.al.Numerical and experimental study of paraffin/expanded graphite phase change materials with an anisotropic model[J].Solar Energy Materials and Solar Cells,2019,194:111-120.
[13] 施尚,余建祖,陈梦东,等.基于泡沫铜/石蜡的锂电池热管理系统性能[J].化工学报,2017,68(7):2678-2683.
[14] 刘洋.基于石蜡-泡沫铜相变复合材料的储能散热器研究[M].包头:内蒙古科技大学,2018.
[15] Goli P,Legedza S,Dhar A,et al.Graphene-enhanced hybrid phase change materials for thermal management of Li-ion batteries[J].Journal of Power Sources,2013,248:37-43.
[16] Amin F,Meysam K,Mohammad S,et al.Experimental investigation of multiwall carbon nanotube/paraffin based heat sink for electronic device thermal management[J].Energy Conversion and Management,2019,179:314-325.
[17] Shirazi A H N,Mohebbi F,Azadi Kakavand M R,et al.Paraffin nanocomposites for heat management of lithium-ion batteries:a computational investigation[J].Journal of Nanomaterials,2016,2016:10.
[18] Abid H,Irfan H A,Tso C Y,et al.Thermal management of lithium ion batteries using graphene coated nickel foam saturated with phase change materials[J].International Journal of Thermal Sciences,2018,124:23-35.
[19] Ma X Y,Wu S Y,Yi Z M,et al.The effect mechanism of functionalization on thermal conductivity of boron nitride nanosheets/paraffin composites[J].International Journal of Heat and Mass Transfer,2019,137:790-798.
[20] Karaipekli A,Biçer A,Sarı A,et al.Thermal characteristics of expanded perlite/paraffin composite phase change material with enhanced thermal conductivity using carbon nanotubes[J].Energy Conversion & Management,2017,134:373-381.
[21] Mengjie W,Jiao Z,Chen Y,et al.Enhanced thermal conductivity of poly(vinylidene fluoride)/boron nitride nanosheet composites at low filler content[J].Composites Part A:Applied Science and Manufacturing,2018,109:321-329.
[22] Xie B H,Huang X,Zhang G J.High thermal conductive polyvinyl alcohol composites with hexagonal boron nitride microplatelets as fillers[J].Composites Science and Technology,2013,85:98-103.
[23] Yang J S,Yang C L,Wang M S,et al.Crystallization of alkane melts induced by carbon nanotubes and graphene nanosheets:a molecular dynamics simulation study[J].Physical Chemistry Chemical Physics,2011,34(13):15476-15482.
[24] Fang X,Fan L W,Ding Q,et al.Thermal energy storage performance of paraffin-based composite phase change materials filled with hexagonal boron nitride nanosheets[J].Energy Conversion & Management,2014,80:103-109.
[25] 冷鑫钰,肖超,陈璐,等.环氧树脂中3D氮化硼复合导热网络的构筑及性能[J].高分子材料科学与工程,2019,35(3):102-107.
[26] Raza G,Zhu W,Xu L,et al.Design,fabrication and numerical analysis of compact thermal management system integrated with composite phase change material and thermal bridge[J].Energy Conversion and Management,2018,156:25-33.
