The glass phase in the grain boundary of Na3Zr2Si2PO12, created by gallium modulation

Lou, Chenjie; Zhang, Wenda; Liu, Jie; Gao, Yanan; Sun, Xuan; Fu, Jipeng; Shi, Yongchao; Xu, Ligang; Luo, Huajie; Chen, Yongjin; Gao, Xiang; Kuang, Xiaojun; Su, Lei; Tang, Mingxue

doi:10.1039/d3sc06578b

Chem. Sci.

2024

DOI: 10.1039/d3sc06578b

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The glass phase in the grain boundary of Na₃Zr₂Si₂PO₁₂, created by gallium modulation

Chenjie Lou,

Wenda Zhang,

Jie Liu

et al.

Abstract: Na3Zr2SiPO12 was proven as a promising electrolyte in solid-state sodium batteries. However, its poor conductivity precludes application because of the large ionic resistance caused by grain boundary. Herein we proposed...

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Cited by 2 publications

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Self-forming Na3P/Na2O interphase on a novel biphasic Na3Zr2Si2PO12/Na3PO4 solid electrolyte for long-cycling solid-state Na-metal batteries

Xiang,

Gao,

Ding

et al. 2024

Energy Storage Materials

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Self-forming Na3P/Na2O interphase on a novel biphasic Na3Zr2Si2PO12/Na3PO4 solid electrolyte for long-cycling solid-state Na-metal batteries

Xiang,

Gao,

Ding

et al. 2024

Energy Storage Materials

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Correlating local structure and migration dynamics in Na/Li dual ion conductor Na ₅ YSi ₄ O ₁₂

Lou,

Liu,

Sun

et al. 2024

Proc. Natl. Acad. Sci. U.S.A.

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Na 5 YSi 4 O 12 (NYSO) is demonstrated as a promising electrolyte with high ionic conductivity and low activation energy for practical use in solid Na-ion batteries. Solid-state NMR was employed to identify the six types of coordination of Na + ions and migration pathway, which is vital to master working mechanism and enhance performance. The assignment of each sodium site is clearly determined from high-quality 23 Na NMR spectra by the aid of Density Functional Theory calculation. Well-resolved 23 Na exchangespectroscopy and electrochemical tracer exchange spectra provide the first experimental evidence to show the existence of ionic exchange between sodium at Na5 and Na6 sites, revealing that Na transport route is possibly along three-dimensional chain of open channel−Na4−open channel. Variable-temperature NMR relaxometry is developed to evaluate Na jump rates and self-diffusion coefficient to probe the sodium-ion dynamics in NYSO. Furthermore, NYSO works well as a dual ion conductor in Na and Li metal batteries with Na 3 V 2 (PO 4 ) 3 and LiFePO 4 as cathodes, respectively.

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The glass phase in the grain boundary of Na₃Zr₂Si₂PO₁₂, created by gallium modulation

Abstract: Na3Zr2SiPO12 was proven as a promising electrolyte in solid-state sodium batteries. However, its poor conductivity precludes application because of the large ionic resistance caused by grain boundary. Herein we proposed...

Cited by 2 publications

References 49 publications

Self-forming Na3P/Na2O interphase on a novel biphasic Na3Zr2Si2PO12/Na3PO4 solid electrolyte for long-cycling solid-state Na-metal batteries

Self-forming Na3P/Na2O interphase on a novel biphasic Na3Zr2Si2PO12/Na3PO4 solid electrolyte for long-cycling solid-state Na-metal batteries

Correlating local structure and migration dynamics in Na/Li dual ion conductor Na ₅ YSi ₄ O ₁₂

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The glass phase in the grain boundary of Na3Zr2Si2PO12, created by gallium modulation

Abstract: Na3Zr2SiPO12 was proven as a promising electrolyte in solid-state sodium batteries. However, its poor conductivity precludes application because of the large ionic resistance caused by grain boundary. Herein we proposed...

Cited by 2 publications

References 49 publications

Self-forming Na3P/Na2O interphase on a novel biphasic Na3Zr2Si2PO12/Na3PO4 solid electrolyte for long-cycling solid-state Na-metal batteries

Self-forming Na3P/Na2O interphase on a novel biphasic Na3Zr2Si2PO12/Na3PO4 solid electrolyte for long-cycling solid-state Na-metal batteries

Correlating local structure and migration dynamics in Na/Li dual ion conductor Na 5 YSi 4 O 12

Contact Info

Product

Resources

About

The glass phase in the grain boundary of Na₃Zr₂Si₂PO₁₂, created by gallium modulation

Correlating local structure and migration dynamics in Na/Li dual ion conductor Na ₅ YSi ₄ O ₁₂