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RSC Advances

Fe-modified NASICON-type Na3V2(PO4)3 as a cathode material for sodium ion batteries

Shuling Liu, ORCID logo *ab   Zheng Xu,ab   Lei Ren,ab   Wenxuan Xu,ab   Yuan Liu,ab   Xuanlu Fan,ab   Muxuan Luo,d   Jiebing Lic  and  Jianbo Tong ORCID logo *ab  

* Corresponding authors

a College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
E-mail: liushuling@sust.edu.cn, jianbotong@aliyun.com

b Shaanxi Key Laboratory of Chemical Additives for Industry, Xi'an 710021, China

c Shaanxi Applied Physics and Chemistry Research Institute, China

d State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China

Abstract

The sol–gel method is used to synthesize a new compound called Na3Fe0.8V1.2(PO4)3/C (NFVP/C), which has a crystal structure and belongs to the NASICON-type family. The dimensions of NFVP's unit cell are a = 8.717 (1) Å, c = 21.84 (1) Å, and V = 1437.27 (0) Å3. The Na‖NFVP/C battery provides a discharge potential of 3.43 V compared to Na+/Na, an intriguing rate capability of 76.2 mA h g−1 at 40C, and maintains an impressive capacity of 97.8% after 500 cycles at 5C. The excellent efficiency of Na3Fe0.8V1.2(PO4)3/C can be ascribed to its elevated Na+ conductivity and reduced energy barrier for sodium-ion diffusion. The NASICON-type Na3Fe0.8V1.2(PO4)3/C is a promising material for sodium-ion batteries.

Graphical abstract: Fe-modified NASICON-type Na3V2(PO4)3 as a cathode material for sodium ion batteries

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Article information

DOI
https://doi.org/10.1039/D3RA08714J
Article type
Paper
Submitted
21 Dec 2023
Accepted
16 Jan 2024
First published
05 Feb 2024
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2024,14, 4835-4843

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Fe-modified NASICON-type Na3V2(PO4)3 as a cathode material for sodium ion batteries

S. Liu, Z. Xu, L. Ren, W. Xu, Y. Liu, X. Fan, M. Luo, J. Li and J. Tong, RSC Adv., 2024, 14, 4835 DOI: 10.1039/D3RA08714J

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