1D Layered LiVO 3 Nanorods Synthesized by Ultrasonic‐Assisted Chemical Route for Supercapacitor Applications

• Published in: Energy technology (Weinheim, Germany) Vol. 12; no. 3
• Main Authors: Shinde, Tanuja Nagnath, Vedpathak, Amol, Nagare, Balasaheb J., Sapkal, Digambar M., Desai, Mangesh, Atre, Pradeep Prabhakar, Sartale, Shrikrishna D.
• Format: Journal Article
• Language: English
• Published: 01-03-2024
• ISSN: 2194-4288; 2194-4296
• DOI: 10.1002/ente.202301056

Herein, 1D layered lithium vanadate (LiVO
3
) nanorods are successfully synthesized using a facile ultrasonic‐assisted chemical route using V
2
O
5
as the starting material. The as‐prepared LiVO
3
nanorods are characterized by X‐ray diffraction, X‐ray photoelectron spectroscopy, and field emission scanning electron microscopy techniques. The reaction and growth mechanism of LiVO
3
nanorods formation are provided. The synthesized LiVO
3
nanorods are used as electrode material for supercapacitor applications and exhibit a high specific capacitance of 426.2 F g
−1
at 0.5 A g
−1
. Additionally, the LiVO
3
// AC asymmetric coin cell supercapacitor device fabricated with LiVO
3
as the cathode shows an excellent energy density of 25.4 Wh kg
−1
at a power density of 228.5 Wkg
−1
along with superior cyclic stability of ≈80% after 5000 cycles and wide operating voltage window of 1.6 V. Density functional theory studies show that the decrease in the bandgap of the LiVO
3
is one of the intrinsic reasons that the conductivity and capacitive charge storage performance are greatly improved over V
2
O
5
. This design of a 1D layered LiVO
3
nanorods presented in this work will provide a path to discover high performing electrode materials for supercapacitor applications.