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.

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

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1346
Author(s):  
Quan Wang ◽  
Kyung-Bum Kim ◽  
Sang Bum Woo ◽  
Tae Hyun Sung
Keyword(s):  
Magnetic Field ◽  
Energy Conversion ◽  
High Performance ◽  
High Energy ◽  
Green Energy ◽  
Lead Free ◽  
Field Energy ◽  
Energy Harvesters ◽  
Magnetic Field Energy ◽  
Piezoelectric Energy

This article presents a high-performance lead-free piezoelectric energy harvester (LPEH) system for magnetic field. It based on a Ba0.85Ca0.15Ti0.90Zr0.10O3 + CuO 0.3 wt% (BCTZC0.3) composite was fabricated by sintering at 1450 °C. The BCTZC0.3 composite, which has an enhanced high energy conversion constant (), 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 system 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.

Piezoelectric energy harvester scavenging AC magnetic field energy from electric power lines

2013 ◽  
Vol 193 ◽  
pp. 59-68 ◽  
Author(s):  
Wei He ◽  
Ping Li ◽  
Yumei Wen ◽  
Jitao Zhang ◽  
Aichao Yang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electric Power ◽  
Energy Harvester ◽  
Power Lines ◽  
Field Energy ◽  
Ac Magnetic Field ◽  
Magnetic Field Energy ◽  
Piezoelectric Energy

scholarly journals Fast magnetic energy dissipation in relativistic plasma induced by high order laser modes

2016 ◽  
Vol 4 ◽  
Author(s):  
Y. J. Gu ◽  
Q. Yu ◽  
O. Klimo ◽  
T. Zh. Esirkepov ◽  
S. V. Bulanov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electric Field ◽  
Magnetic Energy ◽  
Collisionless Plasma ◽  
High Energy ◽  
Field Energy ◽  
Displacement Current ◽  
Particle In Cell ◽  
Magnetic Field Energy ◽  
High Energy Electrons

Fast magnetic field annihilation in a collisionless plasma is induced by using TEM(1,0) laser pulse. The magnetic quadrupole structure formation, expansion and annihilation stages are demonstrated with 2.5-dimensional particle-in-cell simulations. The magnetic field energy is converted to the electric field and accelerate the particles inside the annihilation plane. A bunch of high energy electrons moving backwards is detected in the current sheet. The strong displacement current is the dominant contribution which induces the longitudinal inductive electric field.

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.

A new insight towards eggshell membrane as high energy conversion efficient bio-piezoelectric energy harvester

2018 ◽  
Vol 9 ◽  
pp. 114-125 ◽  
Author(s):  
Sumanta Kumar Karan ◽  
Sandip Maiti ◽  
Sarbaranjan Paria ◽  
Anirban Maitra ◽  
Suman Kumar Si ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Energy Harvester ◽  
High Energy ◽  
Eggshell Membrane ◽  
Piezoelectric Energy

scholarly journals An integrated multi-source energy harvester based on vibration and magnetic field energy

AIP Advances ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 056623 ◽  
Author(s):  
Zhengwen Hu ◽  
Jing Qiu ◽  
Xian Wang ◽  
Yuan Gao ◽  
Xin Liu ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Energy Harvester ◽  
Field Energy ◽  
Magnetic Field Energy

Magnetic Field Energy Harvester and Management Algorithm for Power Tower Sensors

2018 ◽  
Author(s):  
Awab A. Ali ◽  
Syed Ahmed Ali Najafi ◽  
Okan Boler ◽  
Yilmaz Sozer ◽  
Alex De Abreu-Garcia
Keyword(s):  
Magnetic Field ◽  
Energy Harvester ◽  
Field Energy ◽  
Management Algorithm ◽  
Magnetic Field Energy

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.

scholarly journals Lead-free (Ag,K)NbO3 materials for high-performance explosive energy conversion

2020 ◽  
Vol 6 (21) ◽  
pp. eaba0367 ◽  
Author(s):  
Zhen Liu ◽  
Teng Lu ◽  
Fei Xue ◽  
Hengchang Nie ◽  
Ray Withers ◽  
...  
Keyword(s):  
Energy Conversion ◽  
High Performance ◽  
Response Times ◽  
Temperature Stability ◽  
High Energy ◽  
Lead Free ◽  
Explosive Energy ◽  
Mining Areas ◽  
Antiferroelectric Phase ◽  
Underlying Mechanisms

Explosive energy conversion materials with extremely rapid response times have broad and growing applications in energy, medical, defense, and mining areas. Research into the underlying mechanisms and the search for new candidate materials in this field are so limited that environment-unfriendly Pb(Zr,Ti)O3 still dominates after half a century. Here, we report the discovery of a previously undiscovered, lead-free (Ag0.935K0.065)NbO3 material, which possesses a record-high energy storage density of 5.401 J/g, enabling a pulse current ~ 22 A within 1.8 microseconds. It also exhibits excellent temperature stability up to 150°C. Various in situ experimental and theoretical investigations reveal the mechanism underlying this explosive energy conversion can be attributed to a pressure-induced octahedral tilt change from a−a−c+ to a−a−c−/a−a−c+, in accordance with an irreversible pressure-driven ferroelectric-antiferroelectric phase transition. This work provides a high performance alternative to Pb(Zr,Ti)O3 and also guidance for the further development of new materials and devices for explosive energy conversion.

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