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Understanding the Electrochemical Performance and Diffusion Kinetics of HC||Na3V2(PO4)3/C Full Cell Battery for Energy Storage Applications

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Title Understanding the Electrochemical Performance and Diffusion Kinetics of HC||Na3V2(PO4)3/C Full Cell Battery for Energy Storage Applications
 
Creator Sharma, Madhav
Dhaka, Rajendra S
 
Subject Full cell battery
Electrochemical performance
Diffusion kinetics
Energy storage
 
Description 93-101
The efficient energy storage devices are crucial to meet the soaring global energy demand for sustainable future. Recently,
the sodium-ion batteries (SIBs) have emerged as one of the excellent cost effective solution due to the uniform geographical
distribution and abundance of sodium. Here, we use hard carbon (HC) as an anode and Na3V2(PO4)3/C (NVP/C) as a cathode to
fabricate a HC||NVP/C full cell battery and understand its electrochemical performance and diffusion kinetics. These materials
are characterized through the analysis of x-ray diffraction and Raman spectroscopy to confirm their single phase and structure.
The full cell demonstrates a high operating voltage of ∼3.3 V, with minimal polarization of 0.05 V, attributed to the lower
working voltage of the HC. Interestingly, for the full cell battery we find the specific capacity of around 70 mAh/g at 0.1 C and
even around 35 mAh/g at high current rate of 5 C along with high rate capability up to 55 cycles. The diffusion kinetics of the
full cell battery is investigated through detailed analysis of CV curves at various scan rates, and the diffusion coefficient is
found to be 5–8×10-11 cm2/s for the anodic as well as cathodic peaks.
 
Date 2024-02-26T09:25:51Z
2024-02-26T09:25:51Z
2024-02
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/63415
https://doi.org/10.56042/ijpap.v62i2.7371
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJPAP Vol.62(02) [February 2024]