Fabricating Wide-Temperature-Range Quasi-Solid Sodium Batteries with Fast Ion Transport via Tin Additives

Zhendong Yang; Haoyang Jiang; Xiang Li; Xinghui Liang; Jinping Wei; Zhaojun Xie; Bin Tang; Yue Zhang; Zhen Zhou

doi:10.1002/adfm.202407713

Fabricating Wide-Temperature-Range Quasi-Solid Sodium Batteries with Fast Ion Transport via Tin Additives

Zhendong Yang, Haoyang Jiang, Xiang Li, Xinghui Liang, Jinping Wei, Zhaojun Xie, Bin Tang, Yue Zhang, Zhen Zhou

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Quasi-solid sodium batteries, employing quasi-solid polymer electrolytes (QSPEs) renowned for their high energy density and cost-effective fabrication, are promising candidates for next-generation energy storage systems. However, their practical application has encountered impediments such as insufficient ion transport and uneven sodium plating/stripping attributed to suboptimal interfacial compatibility. In this work, an innovative QSPE is developed by incorporating functional additives, specifically fluoroethylene carbonate (FEC) and tin trifluoromethanesulfonate (Sn(OTf)₂), into the poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP)/propylene carbonate (PC) polymer electrolyte. Sn(OTf)₂ catalyzes a ring-opening reaction in PC, thereby reducing transmission barriers and augmenting the transport of sodium ions. Consequently, the resulting HFP-PC-FEC-Sn QSPE demonstrates remarkable ionic conductivity (0.42 mS cm^─1) and ion transference number (0.58). Furthermore, it forms a dense and smooth interphase enriched with NaF and metallic Sn, significantly enhancing the long-term cycling stability of Na symmetric cells, which endure over 3000 h at 0.2 mA cm^─2, and effectively suppressing the formation of sodium dendrites. This outstanding electrochemical performance extends to Na₃V₂(PO₄)₃/Na full coin and pouch cells across a wide temperature range. This work introduces an innovative approach for designing high-performance QSPEs suitable for wide-temperature quasi-solid sodium batteries.

Original language	English
Article number	2407713
Journal	Advanced Functional Materials
Volume	34
Issue number	45
DOIs	https://doi.org/10.1002/adfm.202407713
State	Published - Nov 5 2024
Externally published	Yes

Scopus Subject Areas

Electronic, Optical and Magnetic Materials
General Chemistry
Biomaterials
General Materials Science
Condensed Matter Physics
Electrochemistry

Keywords

Sn(OTf)
interfacial contact
ion transport dynamics
quasi-solid polymer electrolyte
quasi-solid sodium batteries

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10.1002/adfm.202407713

Cite this

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title = "Fabricating Wide-Temperature-Range Quasi-Solid Sodium Batteries with Fast Ion Transport via Tin Additives",

abstract = "Quasi-solid sodium batteries, employing quasi-solid polymer electrolytes (QSPEs) renowned for their high energy density and cost-effective fabrication, are promising candidates for next-generation energy storage systems. However, their practical application has encountered impediments such as insufficient ion transport and uneven sodium plating/stripping attributed to suboptimal interfacial compatibility. In this work, an innovative QSPE is developed by incorporating functional additives, specifically fluoroethylene carbonate (FEC) and tin trifluoromethanesulfonate (Sn(OTf)2), into the poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP)/propylene carbonate (PC) polymer electrolyte. Sn(OTf)2 catalyzes a ring-opening reaction in PC, thereby reducing transmission barriers and augmenting the transport of sodium ions. Consequently, the resulting HFP-PC-FEC-Sn QSPE demonstrates remarkable ionic conductivity (0.42 mS cm─1) and ion transference number (0.58). Furthermore, it forms a dense and smooth interphase enriched with NaF and metallic Sn, significantly enhancing the long-term cycling stability of Na symmetric cells, which endure over 3000 h at 0.2 mA cm─2, and effectively suppressing the formation of sodium dendrites. This outstanding electrochemical performance extends to Na3V2(PO4)3/Na full coin and pouch cells across a wide temperature range. This work introduces an innovative approach for designing high-performance QSPEs suitable for wide-temperature quasi-solid sodium batteries.",

keywords = "Sn(OTf), interfacial contact, ion transport dynamics, quasi-solid polymer electrolyte, quasi-solid sodium batteries",

author = "Zhendong Yang and Haoyang Jiang and Xiang Li and Xinghui Liang and Jinping Wei and Zhaojun Xie and Bin Tang and Yue Zhang and Zhen Zhou",

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T1 - Fabricating Wide-Temperature-Range Quasi-Solid Sodium Batteries with Fast Ion Transport via Tin Additives

AU - Yang, Zhendong

AU - Jiang, Haoyang

AU - Li, Xiang

AU - Liang, Xinghui

AU - Wei, Jinping

AU - Xie, Zhaojun

AU - Tang, Bin

AU - Zhang, Yue

AU - Zhou, Zhen

PY - 2024/11/5

Y1 - 2024/11/5

N2 - Quasi-solid sodium batteries, employing quasi-solid polymer electrolytes (QSPEs) renowned for their high energy density and cost-effective fabrication, are promising candidates for next-generation energy storage systems. However, their practical application has encountered impediments such as insufficient ion transport and uneven sodium plating/stripping attributed to suboptimal interfacial compatibility. In this work, an innovative QSPE is developed by incorporating functional additives, specifically fluoroethylene carbonate (FEC) and tin trifluoromethanesulfonate (Sn(OTf)2), into the poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP)/propylene carbonate (PC) polymer electrolyte. Sn(OTf)2 catalyzes a ring-opening reaction in PC, thereby reducing transmission barriers and augmenting the transport of sodium ions. Consequently, the resulting HFP-PC-FEC-Sn QSPE demonstrates remarkable ionic conductivity (0.42 mS cm─1) and ion transference number (0.58). Furthermore, it forms a dense and smooth interphase enriched with NaF and metallic Sn, significantly enhancing the long-term cycling stability of Na symmetric cells, which endure over 3000 h at 0.2 mA cm─2, and effectively suppressing the formation of sodium dendrites. This outstanding electrochemical performance extends to Na3V2(PO4)3/Na full coin and pouch cells across a wide temperature range. This work introduces an innovative approach for designing high-performance QSPEs suitable for wide-temperature quasi-solid sodium batteries.

AB - Quasi-solid sodium batteries, employing quasi-solid polymer electrolytes (QSPEs) renowned for their high energy density and cost-effective fabrication, are promising candidates for next-generation energy storage systems. However, their practical application has encountered impediments such as insufficient ion transport and uneven sodium plating/stripping attributed to suboptimal interfacial compatibility. In this work, an innovative QSPE is developed by incorporating functional additives, specifically fluoroethylene carbonate (FEC) and tin trifluoromethanesulfonate (Sn(OTf)2), into the poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP)/propylene carbonate (PC) polymer electrolyte. Sn(OTf)2 catalyzes a ring-opening reaction in PC, thereby reducing transmission barriers and augmenting the transport of sodium ions. Consequently, the resulting HFP-PC-FEC-Sn QSPE demonstrates remarkable ionic conductivity (0.42 mS cm─1) and ion transference number (0.58). Furthermore, it forms a dense and smooth interphase enriched with NaF and metallic Sn, significantly enhancing the long-term cycling stability of Na symmetric cells, which endure over 3000 h at 0.2 mA cm─2, and effectively suppressing the formation of sodium dendrites. This outstanding electrochemical performance extends to Na3V2(PO4)3/Na full coin and pouch cells across a wide temperature range. This work introduces an innovative approach for designing high-performance QSPEs suitable for wide-temperature quasi-solid sodium batteries.

KW - Sn(OTf)

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ER -

Fabricating Wide-Temperature-Range Quasi-Solid Sodium Batteries with Fast Ion Transport via Tin Additives

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Keywords

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