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Intrinsically self-healable, stretchable thermoelectric materials with a large ionic Seebeck effect
Energy & Environmental Science ( IF 32.4 ) Pub Date : 2020-04-29 , DOI: 10.1039/c9ee03861b
Zico Alaia Akbar 1, 2, 3, 4, 5 , Ju-Won Jeon 4, 5, 6, 7 , Sung-Yeon Jang 1, 2, 3, 4
Affiliation  

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 (ZTi) as well as remarkable stretchability (up 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 ZTi 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.

中文翻译:

具有大离子塞贝克效应的本能自修复,可拉伸的热电材料

尽管热电(TE)发电机已经引起了极大的关注,但是具有可拉伸性和自愈性的可穿戴式TE发电机的开发却是一个巨大的挑战。在这里,我们报告本质上可自我修复和可拉伸的三元离子TE杂化材料,它由共轭聚合物(聚苯胺),非共轭阴离子聚电解质(聚(2-丙烯酰胺基-2-甲基-1-丙磺酸))和植酸。拟议的材料表现出优异的离子品质因数(ZT i)以及出色的拉伸性(高达750%)和自主的自我修复能力,而无需任何外部刺激。在严重变形(50%应变)和多次自我修复过程(30个循环)下,离子TE性能是可持续的,这是此类性能的首次证明。可拉伸和自修复的三元TE杂化物的ZT i为1.04。此外,还使用三元TE混合体展示了可自我修复且可拉伸的离子型热电电容器。
更新日期:2020-04-29
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