A high-performance flexible piezoelectric energy harvester based on lead-free (Na0.5Bi0.5)TiO3–BaTiO3 piezoelectric nanofibers

2017 ◽  
Vol 5 (45) ◽  
pp. 23634-23640 ◽  
Author(s):  
Bao Liu ◽  
Bin Lu ◽  
Xiaoqiu Chen ◽  
Xin Wu ◽  
Shengjie Shi ◽  
...  
Keyword(s):  
High Performance ◽  
Energy Harvester ◽  
Lead Free ◽  
Piezoelectric Energy

A high-performance flexible piezoelectric energy harvester based on lead-free nanofibers.

High-performance piezoelectric-energy-harvester and self-powered mechanosensing using lead-free potassium–sodium niobate flexible piezoelectric composites

2018 ◽  
Vol 6 (34) ◽  
pp. 16439-16449 ◽  
Author(s):  
Mengjun Wu ◽  
Ting Zheng ◽  
Haiwu Zheng ◽  
Jifang Li ◽  
Weichao Wang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
High Performance ◽  
Energy Harvester ◽  
Lead Free ◽  
Sodium Niobate ◽  
Potassium Sodium Niobate ◽  
Piezoelectric Composites ◽  
Potassium Sodium ◽  
Piezoelectric Energy ◽  
Self Powered

A flexible piezoelectric nanogenerator (PENG) was fabricated based on a new inorganic piezoelectric KNN–BNZ–AS–Fe, which exhibited the great potential in energy harvesting and self-powered mechanosensing.

scholarly journals Magnetic Field Energy Harvesting with a Lead-Free Piezoelectric High Energy Conversion Material

2021 ◽  
Author(s):  
Tae Hyun Sung ◽  
QUAN WANG ◽  
Kyung Bum Kim ◽  
Sang Bum Woo
Keyword(s):  
Magnetic Field ◽  
Energy Conversion ◽  
High Performance ◽  
Energy Harvester ◽  
High Energy ◽  
Green Energy ◽  
Lead Free ◽  
Field Energy ◽  
Magnetic Field Energy ◽  
Piezoelectric Energy

A high-performance Lead-free Piezoelectric Energy Harvester (LPEH) based on a Ba0.85Ca0.15Ti0.90Zr0.10O3 + CuO 0.3 wt% (BCTZC0.3) composite was fabricated by sintering at 1450℃. The BCTZC0.3 composite, which has an enhanced high-energy-conversion constant (〖d_33×g〗_33), shows improved piezoelectric power-generation performance when compared with conventional piezoelectric energy harvesters. The BCTZC0.3-based LPEH produces instantaneous maximum power of 8.2 mW and an energy density of 107.9 mW/cm3 in a weak magnetic field of 250 μT. This energy harvester can be used to charge a capacitor and operate a wireless sensor network (WSN) system to provide temperature sensing and radio-frequency (RF) transmission in a 250 μT magnetic field. The proposed LPEH is a promising green-energy device for potentially self-powering WSN systems when applied.

A High Performance and Consolidated Piezoelectric Energy Harvester Based on 1D/2D Hybrid Zinc Oxide Nanostructures

2018 ◽  
Vol 5 (23) ◽  
pp. 1801167 ◽  
Author(s):  
Alam Mahmud ◽  
Asif Abdullah Khan ◽  
Peter Voss ◽  
Taylan Das ◽  
Eihab Abdel‐Rahman ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
High Performance ◽  
Energy Harvester ◽  
Zinc Oxide Nanostructures ◽  
Piezoelectric Energy ◽  
Oxide Nanostructures

scholarly journals Crack Protective Layered Architecture of Lead-Free Piezoelectric Energy Harvester in Bistable Configuration

Sensors ◽  
2020 ◽  
Vol 20 (20) ◽  
pp. 5808
Author(s):  
Ondrej Rubes ◽  
Zdenek Machu ◽  
Oldrich Sevecek ◽  
Zdenek Hadas
Keyword(s):  
Energy Harvester ◽  
Lead Free ◽  
Vibration Energy Harvester ◽  
Ultra Low Power ◽  
Energy Harvesters ◽  
Layered Architecture ◽  
Piezoelectric Energy ◽  
Wide Range ◽  
Ultra Low Power Devices ◽  
Novel Design

Kinetic piezoelectric energy harvesters are used to power up ultra-low power devices without batteries as an alternative and eco-friendly source of energy. This paper deals with a novel design of a lead-free multilayer energy harvester based on BaTiO3 ceramics. This material is very brittle and might be cracked in small amplitudes of oscillations. However, the main aim of our development is the design of a crack protective layered architecture that protects an energy harvesting device in very high amplitudes of oscillations. This architecture is described and optimized for chosen geometry and the resulted one degree of freedom coupled electromechanical model is derived. This model could be used in bistable configuration and the model is extended about the nonlinear stiffness produced by auxiliary magnets. The complex bistable vibration energy harvester is simulated to predict operation in a wide range of frequency excitation. It should demonstrate typical operation of designed beam and a stress intensity factor was calculated for layers. The whole system, without presence of cracks, was simulated with an excitation acceleration of amplitude up to 1g. The maximal obtained power was around 2 mW at the frequency around 40 Hz with a maximal tip displacement 7.5 mm. The maximal operating amplitude of this novel design was calculated around 10 mm which is 10-times higher than without protective layers.

Selective current collecting design for spring-type energy harvesters

RSC Advances ◽  
2015 ◽  
Vol 5 (14) ◽  
pp. 10662-10666 ◽  
Author(s):  
Dongjin Kim ◽  
Hee Seok Roh ◽  
Yeontae Kim ◽  
Kwangsoo No ◽  
Seungbum Hong
Keyword(s):  
High Performance ◽  
Energy Harvester ◽  
Energy Harvesters ◽  
Piezoelectric Energy ◽  
Spring Type

We designed and fabricated a high performance spring-type piezoelectric energy harvester that selectively collects current from the inner part of a spring shell.

Self-powered fully-flexible light-emitting system enabled by flexible energy harvester

2014 ◽  
Vol 7 (12) ◽  
pp. 4035-4043 ◽  
Author(s):  
Chang Kyu Jeong ◽  
Kwi-Il Park ◽  
Jung Hwan Son ◽  
Geon-Tae Hwang ◽  
Seung Hyun Lee ◽  
...  
Keyword(s):  
High Performance ◽  
Energy Harvester ◽  
Optoelectronic Device ◽  
Light Emitting ◽  
Piezoelectric Energy ◽  
Led Array ◽  
Self Powered

We present a self-powered all-flexible light-emitting optoelectronic device using a flexible and high-performance piezoelectric energy harvester with a robustly developed flexible and vertically structured inorganic LED array.

High performance of macro-flexible piezoelectric energy harvester using a 0.3PIN-0.4Pb(Mg1/3Nb2/3)O3-0.3PbTiO3flake array

2016 ◽  
Vol 25 (12) ◽  
pp. 125015 ◽  
Author(s):  
Zhou Zeng ◽  
Rongyu Xia ◽  
Linlin Gai ◽  
Xian Wang ◽  
Di Lin ◽  
...  
Keyword(s):  
High Performance ◽  
Energy Harvester ◽  
Piezoelectric Energy
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