Thermal energy harvesting by piezoelectric PVDF polymer coupled with shape memory alloy

被引：42
|
作者：
Gusarov, B. [1 ,2 ]
Gusarova, E. [3 ]
Viala, B. [3 ]
Gimeno, L. [1 ,2 ]
Boisseau, S. [3 ]
Cugat, O. [1 ,2 ]
Vandelle, E. [1 ]
Louison, B. [1 ]
机构：
[1] Univ Grenoble Alpes, G2Elab, F-38000 Grenoble, France
[2] CNRS, G2Elab, F-38000 Grenoble, France
[3] CEA, LETI, MINATEC Campus, F-38000 Grenoble, France
来源：
SENSORS AND ACTUATORS A-PHYSICAL | 2016年 / 243卷
关键词：
Thermal energy harvesting; PVDF; Polyvinylidene fluoride; Shape memory alloy; TiNiCu; PYROELECTRIC CONVERSION; COMPOSITE; FILM;
D O I：
10.1016/j.sna.2016.03.026
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel flexible composite thermal energy harvester is presented, which couples pyroelectric and piezoelectric effects of polyvinylidene fluoride (PVDF) with shape memory effect of TiNiCu alloy. The harvester combines superior flexibility of PVDF with large temperature-induced strain of the shape memory alloy to harvest small and quasi-static temperature variations. The post-stamp size harvester (27.5 mm(3)) achieved an energy density of 0.41 mJ/cm(3) per event of temperature variation of 20 degrees C. When reaching 70 degrees C the harvester, consisting of a stack of four PVDF, powered a wireless node instantaneously without any storage unit. The use of PVDF quadruples the energy output, compared to previously reported PZT-based composites. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：175 / 181
页数：7
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