A Polymer-Assisted Spinodal Decomposition Strategy toward Interconnected Porous Sodium Super Ionic Conductor-Structured Polyanion-Type Materials and Their Application as a High-Power Sodium-Ion Battery Cathode

Hailong Xiong; Ruicheng Qian; Zhilin Liu; Rui Zhang; Ge Sun; Bingkun Guo; Fei Du; Shuyan Song; Zhen An Qiao; Sheng Dai

doi:10.1002/advs.202004943

A Polymer-Assisted Spinodal Decomposition Strategy toward Interconnected Porous Sodium Super Ionic Conductor-Structured Polyanion-Type Materials and Their Application as a High-Power Sodium-Ion Battery Cathode

Hailong Xiong, Ruicheng Qian, Zhilin Liu, Rui Zhang, Ge Sun, Bingkun Guo, Fei Du, Shuyan Song, Zhen An Qiao, Sheng Dai

Chemical Sciences Division

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

41 Scopus citations

Abstract

A general polymer-assisted spinodal decomposition strategy is used to prepare hierarchically porous sodium super ionic conductor (NASICON)-structured polyanion-type materials (e.g., Na₃V₂(PO₄)₃, Li₃V₂(PO₄)₃, K₃V₂(PO₄)₃, Na₄MnV(PO₄)₃, and Na₂TiV(PO₄)₃) in a tetrahydrofuran/ethanol/H₂O synthesis system. Depending on the boiling point of solvents, the selective evaporation of the solvents induces both macrophase separation via spinodal decomposition and mesophase separation via self-assembly of inorganic precursors and amphiphilic block copolymers, leading to the formation of hierarchically porous structures. The resulting hierarchically porous Na₃V₂(PO₄)₃ possessing large specific surface area (≈77 m² g⁻¹) and pore volume (≈0.272 cm³ g⁻¹) shows a high specific capacity of 117.6 mAh g⁻¹ at 0.1 C achieving the theoretical value and a long cycling life with 77% capacity retention over 1000 cycles at 5 C. This method presented here can open a facile avenue to synthesize other hierarchically porous polyanion-type materials.

Original language	English
Article number	2004943
Journal	Advanced Science
Volume	8
Issue number	11
DOIs	https://doi.org/10.1002/advs.202004943
State	Published - Jun 9 2021

Funding

This work was supported by the Young Thousand Talented Program and the National Natural Science Foundation of China (21671073 and 21621001), the “111” Project of the Ministry of Education of China (B17020), and Program for JLU Science and Technology Innovative Research Team. S.D. was supported by U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division.

Keywords

NASICON-structured materials
hierarchically porous structures
macro/mesoporous materials
self-assembly
spinodal decomposition

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Xiong, H., Qian, R., Liu, Z., Zhang, R., Sun, G., Guo, B., Du, F., Song, S., Qiao, Z. A., & Dai, S. (2021). A Polymer-Assisted Spinodal Decomposition Strategy toward Interconnected Porous Sodium Super Ionic Conductor-Structured Polyanion-Type Materials and Their Application as a High-Power Sodium-Ion Battery Cathode. Advanced Science, 8(11), Article 2004943. https://doi.org/10.1002/advs.202004943

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title = "A Polymer-Assisted Spinodal Decomposition Strategy toward Interconnected Porous Sodium Super Ionic Conductor-Structured Polyanion-Type Materials and Their Application as a High-Power Sodium-Ion Battery Cathode",

abstract = "A general polymer-assisted spinodal decomposition strategy is used to prepare hierarchically porous sodium super ionic conductor (NASICON)-structured polyanion-type materials (e.g., Na3V2(PO4)3, Li3V2(PO4)3, K3V2(PO4)3, Na4MnV(PO4)3, and Na2TiV(PO4)3) in a tetrahydrofuran/ethanol/H2O synthesis system. Depending on the boiling point of solvents, the selective evaporation of the solvents induces both macrophase separation via spinodal decomposition and mesophase separation via self-assembly of inorganic precursors and amphiphilic block copolymers, leading to the formation of hierarchically porous structures. The resulting hierarchically porous Na3V2(PO4)3 possessing large specific surface area (≈77 m2 g−1) and pore volume (≈0.272 cm3 g−1) shows a high specific capacity of 117.6 mAh g−1 at 0.1 C achieving the theoretical value and a long cycling life with 77% capacity retention over 1000 cycles at 5 C. This method presented here can open a facile avenue to synthesize other hierarchically porous polyanion-type materials.",

keywords = "NASICON-structured materials, hierarchically porous structures, macro/mesoporous materials, self-assembly, spinodal decomposition",

author = "Hailong Xiong and Ruicheng Qian and Zhilin Liu and Rui Zhang and Ge Sun and Bingkun Guo and Fei Du and Shuyan Song and Qiao, {Zhen An} and Sheng Dai",

note = "Publisher Copyright: {\textcopyright} 2021 The Authors. Advanced Science published by Wiley-VCH GmbH",

year = "2021",

month = jun,

day = "9",

doi = "10.1002/advs.202004943",

language = "English",

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Xiong, H, Qian, R, Liu, Z, Zhang, R, Sun, G, Guo, B, Du, F, Song, S, Qiao, ZA & Dai, S 2021, 'A Polymer-Assisted Spinodal Decomposition Strategy toward Interconnected Porous Sodium Super Ionic Conductor-Structured Polyanion-Type Materials and Their Application as a High-Power Sodium-Ion Battery Cathode', Advanced Science, vol. 8, no. 11, 2004943. https://doi.org/10.1002/advs.202004943

A Polymer-Assisted Spinodal Decomposition Strategy toward Interconnected Porous Sodium Super Ionic Conductor-Structured Polyanion-Type Materials and Their Application as a High-Power Sodium-Ion Battery Cathode. / Xiong, Hailong; Qian, Ruicheng; Liu, Zhilin et al.
In: Advanced Science, Vol. 8, No. 11, 2004943, 09.06.2021.

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

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T1 - A Polymer-Assisted Spinodal Decomposition Strategy toward Interconnected Porous Sodium Super Ionic Conductor-Structured Polyanion-Type Materials and Their Application as a High-Power Sodium-Ion Battery Cathode

AU - Xiong, Hailong

AU - Qian, Ruicheng

AU - Liu, Zhilin

AU - Zhang, Rui

AU - Sun, Ge

AU - Guo, Bingkun

AU - Du, Fei

AU - Song, Shuyan

AU - Qiao, Zhen An

AU - Dai, Sheng

PY - 2021/6/9

Y1 - 2021/6/9

N2 - A general polymer-assisted spinodal decomposition strategy is used to prepare hierarchically porous sodium super ionic conductor (NASICON)-structured polyanion-type materials (e.g., Na3V2(PO4)3, Li3V2(PO4)3, K3V2(PO4)3, Na4MnV(PO4)3, and Na2TiV(PO4)3) in a tetrahydrofuran/ethanol/H2O synthesis system. Depending on the boiling point of solvents, the selective evaporation of the solvents induces both macrophase separation via spinodal decomposition and mesophase separation via self-assembly of inorganic precursors and amphiphilic block copolymers, leading to the formation of hierarchically porous structures. The resulting hierarchically porous Na3V2(PO4)3 possessing large specific surface area (≈77 m2 g−1) and pore volume (≈0.272 cm3 g−1) shows a high specific capacity of 117.6 mAh g−1 at 0.1 C achieving the theoretical value and a long cycling life with 77% capacity retention over 1000 cycles at 5 C. This method presented here can open a facile avenue to synthesize other hierarchically porous polyanion-type materials.

AB - A general polymer-assisted spinodal decomposition strategy is used to prepare hierarchically porous sodium super ionic conductor (NASICON)-structured polyanion-type materials (e.g., Na3V2(PO4)3, Li3V2(PO4)3, K3V2(PO4)3, Na4MnV(PO4)3, and Na2TiV(PO4)3) in a tetrahydrofuran/ethanol/H2O synthesis system. Depending on the boiling point of solvents, the selective evaporation of the solvents induces both macrophase separation via spinodal decomposition and mesophase separation via self-assembly of inorganic precursors and amphiphilic block copolymers, leading to the formation of hierarchically porous structures. The resulting hierarchically porous Na3V2(PO4)3 possessing large specific surface area (≈77 m2 g−1) and pore volume (≈0.272 cm3 g−1) shows a high specific capacity of 117.6 mAh g−1 at 0.1 C achieving the theoretical value and a long cycling life with 77% capacity retention over 1000 cycles at 5 C. This method presented here can open a facile avenue to synthesize other hierarchically porous polyanion-type materials.

KW - NASICON-structured materials

KW - hierarchically porous structures

KW - macro/mesoporous materials

KW - self-assembly

KW - spinodal decomposition

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DO - 10.1002/advs.202004943

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SN - 2198-3844

VL - 8

JO - Advanced Science

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ER -

A Polymer-Assisted Spinodal Decomposition Strategy toward Interconnected Porous Sodium Super Ionic Conductor-Structured Polyanion-Type Materials and Their Application as a High-Power Sodium-Ion Battery Cathode

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