Vanadium dissolution at 30 °C and its suppression at a low temperature of −20 °C for a Na3V1.5Cr0.5(PO4)3 cathode

Yuxin Liao; Fushan Geng; Yu Jiang; Ming Shen; Bingwen Hu

doi:10.1039/D2CC02715A

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Vanadium dissolution at 30 °C and its suppression at a low temperature of −20 °C for a Na₃V_1.5Cr_0.5(PO₄)₃ cathode†

Yuxin Liao,^a Fushan Geng,

^a Yu Jiang,^a Ming Shen

^a and Bingwen Hu

*^a

Author affiliations

* Corresponding authors

^a Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
E-mail: bwhu@phy.ecnu.edu.cn

Abstract

Na₃V_1.5Cr_0.5(PO₄)₃ cycled at 30 °C shows fast capacity decay, due to the migration of V ions into the electrolyte and the loss of V³⁺/V⁴⁺ redox. A low temperature of −20 °C attenuates V-ion dissolution, retains V³⁺/V⁴⁺ redox and improves the electrochemical performance, favorable for use in cold climates and high-altitude drones.

This article is part of the themed collection: Electrochemical Energy

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Article information

DOI: https://doi.org/10.1039/D2CC02715A
Article type: Communication
Submitted: 12 5 2022
Accepted: 01 7 2022
First published: 04 7 2022

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Chem. Commun., 2022,58, 8488-8491

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Vanadium dissolution at 30 °C and its suppression at a low temperature of −20 °C for a Na₃V_1.5Cr_0.5(PO₄)₃ cathode

Y. Liao, F. Geng, Y. Jiang, M. Shen and B. Hu, Chem. Commun., 2022, 58, 8488 DOI: 10.1039/D2CC02715A

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