Spider Web‑Inspired Graphene Skeleton‑Based High Thermal Conductivity Phase Change Nanocomposites for Battery Thermal Management

作     者：Ying Lin Qi Kang Han Wei Hua Bao Pingkai Jiang Yiu‑Wing Mai Xingyi Huang Ying Lin;Qi Kang;Han Wei;Hua Bao;Pingkai Jiang;Yiu?Wing Mai;Xingyi Huang

作者机构：Shanghai Key Lab of Electrical Insulation and Thermal AgeingThe State Key Laboratory of Metal Matrix CompositesDepartment of Polymer Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China University of Michigan‑Shanghai Jiao Tong University Joint InstituteShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China Centre for Advanced Materials Technology(CAMT)School of AerospaceMechanical and Mechatronic Engineering J07The University of SydneySydneyNSW 2006Australia 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2021年第13卷第11期

页      面：308-321页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：This work was supported by the National Natural Science Foundation of China(Numbers:U19A20105 51877132) 

主　　题：Thermal conductivity Radial freeze-casting Phase change materials 3D graphene aerogel Thermal management 

摘      要：Phase change materials(PCMs)can be used for efficient thermal energy harvesting,which has great potential for cost-effective thermal management and energy ***,the low intrinsic thermal conductivity of polymeric PCMs is a bottleneck for fast and efficient heat ***,it is also a challenge to achieve a high thermal conductivity for phase change nanocomposites at low filler *** constructing a three-dimensional(3D)thermally conductive network within PCMs can address these problems,the anisotropy of the 3D framework usually leads to poor thermal conductivity in the direction perpendicular to the alignment of *** by the interlaced structure of spider webs in nature,this study reports a new strategy for fabricating highly thermally conductive phase change composites(sw-GS/PW)with a 3D spider web(sw)-like structured graphene skeleton(GS)by hydrothermal reaction,radial freeze-casting and vacuum impregnation in paraffin wax(PW).The results show that the sw-GS hardly affected the phase transformation behavior of PW at low ***,sw-GS/PW exhibits both high cross-plane and in-plane thermal conductivity enhancements of~1260%and~840%,respectively,at an ultra-low filler loading of 2.25 vol.%.The thermal infrared results also demonstrate that sw-GS/PW possessed promising applications in battery thermal management.