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Microwave-Assisted Synthesis of Porous Nano-Sized Na 3V 2(PO 4) 2F 3@C Nanospheres for Sodium Ion Batteries with Enhanced Stability

16 Pages Posted: 6 Jan 2020 First Look: Accepted

See all articles by Yujia Mao

Yujia Mao

Sichuan University - School of Chemical Engineering

Xiong Zhang

Sichuan University - School of Chemical Engineering

Yanping Zhou

Sichuan University - Key Laboratory of Wireless Power Transmission of Ministry of Education

Wei Chu

Sichuan University - School of Chemical Engineering

Abstract

Na3V2(PO4)2F3 is a prospective cathode material for sodium ion batteries (SIBs) because of its high theoretical capacity. Nevertheless, its low electronic conductivity leads to poor cycling and rate performance, hindering its practical application. In this work, ultrafine-Na3V2(PO4)2F3 nanocrystals less than 20 nm embedded in porous carbon nanospheres are fabricated via a microwave-assisted glycerol-mediated hydrothermal process followed by annealing. Microwave irradiation is shown to be critical for the formation of homogenous ultrafine nanostructure. The product exhibits a charge/discharge capacity of 106 mAh g-1 at 0.5 C after 100 cycles with a retention of approximate 100% as cathode material for SIBs.

Keywords: Na3V2(PO4)2F3, Nanostructured material, Cathode material, Sodium ion battery, Microwave-assisted synthesis

Suggested Citation

Mao, Yujia and Zhang, Xiong and Zhou, Yanping and Chu, Wei, Microwave-Assisted Synthesis of Porous Nano-Sized Na 3V 2(PO 4) 2F 3@C Nanospheres for Sodium Ion Batteries with Enhanced Stability. Available at SSRN: https://ssrn.com/abstract=3507487 or http://dx.doi.org/10.2139/ssrn.3507487

Yujia Mao (Contact Author)

Sichuan University - School of Chemical Engineering

China

Xiong Zhang

Sichuan University - School of Chemical Engineering

China

Yanping Zhou

Sichuan University - Key Laboratory of Wireless Power Transmission of Ministry of Education

Chengdu
China

Wei Chu

Sichuan University - School of Chemical Engineering ( email )

China

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