A new route to fabricate flexible, breathable composites with advanced thermal management capability for wearable electronics

Chen, Huibao1,2; Ding, Yafei3; Zhu, Guimei4; Liu, Yu2; Fang, Qun5; Bai, Xue6; Zhao, Yan7; Li, Xin1; Huang, Xingyi8; Zhang, Tong-Yi9; Li, Baowen3,10,11,12; Sun, Bin1,2,13

2023-05-08

10.1038/s41528-023-00257-0

NPJ FLEXIBLE ELECTRONICS   Impact Factor & Quartile

2397-4621

Wearable electronics with miniaturization and high-power density call for devices with advanced thermal management capabilities, outstanding flexibility, and excellent permeability. However, it is difficult to achieve these goals simultaneously due to the conflict between high thermal conductivity and permeability and flexibility. Here, we report an approach to fabricate flexible, breathable composites with advanced thermal management capability by coating the boron nitride nanosheets (BNNSs) layer with high thermal conductivity on the grids of patterned electrospun thermoplastic polyurethane (TPU) fibrous mats. The composite exhibited a significant enhancement of thermal conductivity and preserved instinctive breathability simultaneously. When the composite was integrated into flexible devices, its saturating operating temperature dropped significantly compared to that of pure Ecoflex packaging. Moreover, the surface temperature fluctuation was less than 0.5 degrees C during more than 2000 cycles bending-releasing process. Finally, a prototype to fabricate wearable electronics with advanced thermal management capability was proposed.

SCI

English

Corresponding

Natural Science Foundation of Shandong Province[ZR2020ME193] ; National Natural Science Foundation of China[62004211] ; Shenzhen Science and Technology Program[RCBS20200714114858221]

Engineering ; Materials Science

Engineering, Electrical & Electronic ; Materials Science, Multidisciplinary

WOS:000983074900001

NATURE PORTFOLIO

Web of Science

1.Qingdao Univ, Coll Phys, Qingdao 266071, Peoples R China
2.Qingdao Univ, Coll Elect & Informat, Qingdao 266071, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Sch Microelect, Shenzhen 518055, Peoples R China
5.Qingdao Univ, Sch Phys Educ, Qingdao 266071, Peoples R China
6.Chinese Acad Sci, Shenzhen Inst Adv Elect Mat, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China
7.Soochow Univ, Coll Text & Clothing Engn, Suzhou 215123, Peoples R China
8.Shanghai Jiao Tong Univ, Dept Polymer Sci & Engn, Shanghai Key Lab Elect Insulat & Thermal Aging, Shanghai 200240, Peoples R China
9.Shanghai Univ, Mat Genome Inst, Shanghai 200444, Peoples R China
10.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
11.Southern Univ Sci & Technol, Shenzhen Int Quantum Acad, Shenzhen 518055, Peoples R China
12.Univ Colorado, Paul M Rady Dept Mech Engn, Dept Phys, Boulder, CO 80305 USA
13.Qingdao Univ, Weihai Innovat Res Inst, Weihai 264200, Peoples R China

Chen, Huibao,Ding, Yafei,Zhu, Guimei,et al. A new route to fabricate flexible, breathable composites with advanced thermal management capability for wearable electronics[J]. NPJ FLEXIBLE ELECTRONICS,2023,7(1).

Chen, Huibao.,Ding, Yafei.,Zhu, Guimei.,Liu, Yu.,Fang, Qun.,...&Sun, Bin.(2023).A new route to fabricate flexible, breathable composites with advanced thermal management capability for wearable electronics.NPJ FLEXIBLE ELECTRONICS,7(1).

Chen, Huibao,et al."A new route to fabricate flexible, breathable composites with advanced thermal management capability for wearable electronics".NPJ FLEXIBLE ELECTRONICS 7.1(2023).