A shape memory supercapacitor and its application in smart energy storage textiles

被引:122
作者
Huang, Yang [1 ]
Zhu, Minshen [1 ]
Pei, Zengxia [1 ]
Xue, Qi [1 ]
Huang, Yan [1 ]
Zhi, Chunyi [1 ,2 ]
机构
[1] City Univ Hong Kong, Dept Phys & Mat Sci, 83 Tat Chee Ave, Kowloon, Hong Kong, Peoples R China
[2] City Univ Hong Kong, Shenzhen Res Inst, Shenzhen, Peoples R China
关键词
ASYMMETRIC SUPERCAPACITORS; FLEXIBLE SUPERCAPACITORS; YARN SUPERCAPACITORS; METAL-OXIDE; ELECTRODE; DENSITY; PAPER; SUBSTRATE; NETWORKS;
D O I
10.1039/c5ta09473a
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
As a result of the popularization of wearable electronics, a variety of compact flexible energy storage devices have been successfully developed recently. During practical application, these delicate devices unavoidably experience all kinds of deformations. These deformations would become irreversible under the long-term concentration of local stresses, leading to structure and functional fatigue. To solve this problem, a shape memory supercapacitor (SMSC) is successfully fabricated for the first time. The SMSC is flexible and easily deformed below its activation temperature. Once it is heated over a trigger temperature, it would automatically recover its original shape, meanwhile restoring all deformations. By embedding with shape memory functions, all potential damage to the supercapacitor would be nipped in the bud, while simultaneously prolonging the life span of the device. Furthermore, an energy storage shape memory textile woven with these SMSCs and traditional fabrics can work as a smart sleeve. It can "remember" its pre-designed shape and realize automatic cooling when it is over-heated, demonstrating a diversity of potential applications other than energy storage.
引用
收藏
页码:1290 / 1297
页数:8
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