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Flexible PVDF based piezoelectric nanogenerators
Nano Energy ( IF 16.8 ) Pub Date : 2020-08-06 , DOI: 10.1016/j.nanoen.2020.105251
Lijun Lu , Wenqing Ding , Jingquan Liu , Bin Yang

Confronting the depletion of fossil energy and the pollution of chemical batteries, together with the rapid development of various portable electronic devices and the Internet of Things (IoT), there is an urgent requirement to develop high-performance, lightweight, and sustainable energy conversion and power supply devices. Currently, the flexible piezoelectric nanogenerator is a favourable candidate, which can be integrated with personal electronics and wireless sensors to realize sustainable energy for working with long time due to their excellent mechanical properties, good environmental adaptability and outstanding energy harvesting performance. Poly(vinylidene fluoride) (PVDF) and its copolymers, as the most flexible piezoelectric polymer materials, have been widely concerned and become the research hotspot because of their excellent flexibility, strength, easy processing and low cost. To date, significant progress has been made for PVDF based nanogenerators considering improving the output performance to meet the requirement of adapting to complex vibration environments (in vivo or in vitro). Hence, a critical review is presented to systematically summary the recent advance of flexible PVDF based piezoelectric nanogenerators in the aspects of incorporating various nanofillers, structural design, optimizing fabrication techniques and energy harvesting application. Finally, some existing challenges and future perspectives are outlined and discussed to facilitate the development of flexible piezoelectric PVDF based nanogenerators. It is hoped that this review can help researchers to gain a better overall understanding of this field and push forward it to a new stage.



中文翻译:

基于柔性PVDF的压电纳米发电机

面对化石能源的消耗和化学电池的污染,以及各种便携式电子设备和物联网(IoT)的迅猛发展,迫切需要开发高性能,轻便且可持续的能源转换和电源设备。目前,柔性压电纳米发电机是一种理想的选择,由于其优异的机械性能,良好的环境适应性和出色的能量收集性能,可与个人电子设备和无线传感器集成以实现可持续的能量以长时间工作。聚偏二氟乙烯(PVDF)及其共聚物是最柔软的压电聚合物材料,由于其出色的柔韧性,强度,易加工性和低成本,受到广泛关注并成为研究热点。迄今为止,考虑到提高输出性能以满足适应复杂振动环境的要求,基于PVDF的纳米发电机已经取得了重大进展(体内体外)。因此,提出了一项重要的综述,以系统地总结基于柔性PVDF的压电纳米发电机在结合各种纳米填料,结构设计,优化制造技术和能量收集应用方面的最新进展。最后,概述并讨论了一些现有的挑战和未来的观点,以促进基于柔性压电PVDF的纳米发电机的开发。希望这篇综述可以帮助研究人员更好地了解这一领域并将其推向一个新的阶段。

更新日期:2020-08-14
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