High output power density of a shear-mode piezoelectric energy harvester based on Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals

2020 ◽  
Vol 271 ◽  
pp. 115193 ◽  
Author(s):  
Xiangyu Gao ◽  
Chaorui Qiu ◽  
Guo Li ◽  
Ming Ma ◽  
Shuai Yang ◽  
...  
Keyword(s):  
Single Crystals ◽  
Power Density ◽  
Output Power ◽  
Energy Harvester ◽  
Shear Mode ◽  
High Output Power ◽  
Piezoelectric Energy ◽  
High Output

scholarly journals Power Density Improvement of Piezoelectric Energy Harvesters via a Novel Hybridization Scheme with Electromagnetic Transduction

Micromachines ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 803
Author(s):  
Zhongjie Li ◽  
Chuanfu Xin ◽  
Yan Peng ◽  
Min Wang ◽  
Jun Luo ◽  
...  
Keyword(s):  
Power Density ◽  
Output Power ◽  
Energy Harvester ◽  
Hybrid Energy ◽  
Energy Harvesters ◽  
Piezoelectric Patch ◽  
Piezoelectric Energy ◽  
Electromagnetic Transduction ◽  
Self Powered ◽  
Power Densities

A novel hybridization scheme is proposed with electromagnetic transduction to improve the power density of piezoelectric energy harvester (PEH) in this paper. Based on the basic cantilever piezoelectric energy harvester (BC-PEH) composed of a mass block, a piezoelectric patch, and a cantilever beam, we replaced the mass block by a magnet array and added a coil array to form the hybrid energy harvester. To enhance the output power of the electromagnetic energy harvester (EMEH), we utilized an alternating magnet array. Then, to compare the power density of the hybrid harvester and BC-PEH, the experiments of output power were conducted. According to the experimental results, the power densities of the hybrid harvester and BC-PEH are, respectively, 3.53 mW/cm3 and 5.14 μW/cm3 under the conditions of 18.6 Hz and 0.3 g. Therefore, the power density of the hybrid harvester is 686 times as high as that of the BC-PEH, which verified the power density improvement of PEH via a hybridization scheme with EMEH. Additionally, the hybrid harvester exhibits better performance for charging capacitors, such as charging a 2.2 mF capacitor to 8 V within 17 s. It is of great significance to further develop self-powered devices.

A high-output flexible triboelectric nanogenerator based on polydimethylsiloxane/three-dimensional bilayer graphene/carbon cloth composites

2020 ◽  
Vol 8 (33) ◽  
pp. 17150-17155 ◽  
Author(s):  
Yongteng Qian ◽  
Minkyun Sohn ◽  
Wen He ◽  
Hyunje Park ◽  
K. R. V. Subramanian ◽  
...  
Keyword(s):  
Power Density ◽  
Output Power ◽  
Three Dimensional ◽  
Bilayer Graphene ◽  
Triboelectric Nanogenerator ◽  
Carbon Cloth ◽  
Synthetic Route ◽  
High Output Power ◽  
High Output

A high output flexible triboelectric nanogenerator was successfully fabricated through a facile synthetic route which can achieve a high output power density of 0.65 mW cm−2.

Sign in / Sign up

Export Citation Format

Share Document