Multilayered Piezoelectric Nanogenerator Based on Lead-Free Poly(vinylidene fluoride)-(0.67BiFeO3-0.33BaTiO3) Electrospun Nanofiber Mats for Fast Charging of Supercapacitors

Muduli, Sakti Prasanna and Veeralingam, Sushmitha and Badhulika, Sushmee (2022) Multilayered Piezoelectric Nanogenerator Based on Lead-Free Poly(vinylidene fluoride)-(0.67BiFeO3-0.33BaTiO3) Electrospun Nanofiber Mats for Fast Charging of Supercapacitors. ACS Applied Energy Materials, 5 (3). pp. 2993-3003. ISSN 2574-0962

Text
ACS_Applied_Energy_Materials.pdf - Published Version
Restricted to Registered users only
Download (10MB) | Request a copy

Abstract

Polymer-based piezoelectric nanogenerators (PENG) produce satisfactory voltage but low current outputs. Herein, a flexible, multilayered PENG with a high power density is demonstrated based on poly(vinylidene fluoride) (PVDF)-[0.67(BiFeO3)-0.33(BaTiO3)] (BF33BT) electrospun nanofiber mats. With a maximum β-phase and piezoresponse, the optimized composite with 30 wt % BF33BT was used to fabricate the multilayered PENG (MPENG). The MPENG, comprising three layers, shows an open-circuit voltage, short-circuit current, and instantaneous power density of 83 V, 1.62 μA, and 142 mW m-2, respectively, by applying a compressive force of 0.1 kgf at 3 Hz frequency. This power density is almost three times more than that of a single-layer composite-based PENG and 65 times more than that of a single-layer PENG of pristine PVDF. The exceptional piezoresponse is due to the combined effect of the piezoceramic and multilayered structures. The MPENG was used to charge a supercapacitor (0.047 F) up to 1.5 V in 660 s to power a calculator. The device showed no performance degradation for more than 5000 cycles, thus opening up promising avenues for sustainable energy harvesting applications. © 2022 American Chemical Society. All rights reserved.

[error in script]

IITH Creators:

IITH Creators	ORCiD
Badhulika, Sushmee	https://orcid.org/0000-0003-3237-3031

Item Type:

Article

Additional Information:

S.P.M. acknowledges Dr. Karnan Manickavasakam for characterization of the supercapacitor. S.B. acknowledges financial assistance from Defence Research Development Organization Young Scientist Laboratory-Smart Materials (DRDO DYSL −SM) grant DYSL-SM/CARS-04.

Uncontrolled Keywords:

composite nanofiber; energy harvesting; morphotropic phase boundary; multilayered piezoelectric nanogenerator; PVDF-BF33BT

Subjects:

Electrical Engineering

Divisions:

Department of Electrical Engineering

Depositing User:

. LibTrainee 2021

Date Deposited:

22 Jul 2022 09:10

Last Modified:

22 Jul 2022 09:10