Solid-state NMR study on sodium intercalation at low voltage window for Na3V2(PO4)3 as an anode

Magnetic Resonance Letters Pub Date : 2024-05-01 DOI:10.1016/j.mrl.2023.12.001

Yuxin Liao, Fushan Geng, Ming Shen, Bingwen Hu

引用次数: 0

Abstract

In-situ XRD, ³¹P NMR and ²³Na NMR were used to analyze the interaction behavior of Na₃V₂(PO₄)₃ at low voltage, and then a new intercalation model was proposed. During the transition from Na₃V₂(PO₄)₃ to Na₄V₂(PO₄)₃, Na ions insert into M1, M2 and M3 sites simultaneously. Afterwards, during the transition of Na₄V₂(PO₄)₃ to Na₅V₂(PO₄)₃, Na ions mainly insert into M3 site.

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以 Na3V2(PO4)3 为阳极的低电压窗口钠插层固态核磁共振研究

利用原位 XRD、31P NMR 和 23Na NMR 分析了 Na3V2(PO4)3 在低电压下的相互作用行为，然后提出了一个新的插层模型。在 Na3V2(PO4)3 向 Na4V2(PO4)3 的转变过程中，Na 离子同时插入 M1、M2 和 M3 位点。之后，在 Na4V2(PO4)3 向 Na5V2(PO4)3 的转变过程中，Na 离子主要插入 M3 位点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Magnetic Resonance Letters Analytical Chemistry, Spectroscopy, Radiology and Imaging, Biochemistry, Genetics and Molecular Biology (General)

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