Intrinsically self-healable, stretchable thermoelectric materials with a large ionic Seebeck effect

被引:143
作者
Akbar, Zico Alaia [1 ,2 ]
Jeon, Ju-Won [2 ]
Jang, Sung-Yeon [1 ]
机构
[1] Ulsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engin Eering, 50 UNIST Gil, Ulsan 44919, South Korea
[2] Kookmin Univ, Dept Chemistiy, 77 Jeongneung Ro, Seoul 136702, South Korea
基金
新加坡国家研究基金会;
关键词
CONDUCTIVITY; COMPOSITES; POLYMERS; BEHAVIOR;
D O I
10.1039/c9ee03861b
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
While the thermoelectric (TE) generator has attracted tremendous attention, the development of wearable TE generators with stretchability and self-healability has been a significant challenge. Herein, we report intrinsically self-healable and stretchable ternary ionic TE hybrid materials, composed of a conjugated polymer (polyaniline), a non-conjugated anionic polyelectrolyte (poly(2-acrylamido-2-methyl-1-propanesulfonic acid)), and phytic acid. The proposed materials exhibit an excellent ionic figure-of-merit (ZT(i)) as well as remarkable stretchability (up to similar to 750%) and autonomous self-healability without any external stimuli. The ionic TE performance was sustainable under severe deformation (50% strain) and multiple self-healing processes (30 cycles), which is the first demonstration of such performance. The ZT(i) of the stretchable and self-healable ternary TE hybrids is 1.04. Moreover, a self-healable and stretchable ionic thermoelectric capacitor device is also demonstrated using the ternary TE hybrid.
引用
收藏
页码:2915 / 2923
页数:9
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