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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. We find that 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.

Authors:
 [1];  [2];  [1];  [1];  [3];  [2];  [3];  [4]; ORCiD logo [1]; ORCiD logo [5]
  1. Jilin Univ., Changchun (China). State Key Lab. of Inorganic Synthesis and Preparative Chemistry
  2. Shanghai Univ. (China). Materials Genome Inst.
  3. Jilin Univ., Changchun (China). Key Lab. of Physics and Technology for Advanced Batteries, State Key Lab. of Superhard Materials
  4. Chinese Academy of Sciences (CAS), Changchun (China). State Key Lab. of Rare Earth Resource Utilization, Changchun Inst. of Applied Chemistry
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; National Natural Science Foundation of China (NSFC); Ministry of Education of China
OSTI Identifier:
1777692
Grant/Contract Number:  
AC05-00OR22725; 21671073; 21621001; B17020
Resource Type:
Accepted Manuscript
Journal Name:
Advanced Science
Additional Journal Information:
Journal Volume: n/a; Journal Issue: n/a; Journal ID: ISSN 2198-3844
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; hierarchically porous structures; macro/mesoporous materials; NASICON-structured materials; self-assembly; spinodal decomposition

Citation Formats

Xiong, Hailong, Qian, Ruicheng, Liu, Zhilin, Zhang, Rui, Sun, Ge, Guo, Bingkong, Du, Fei, Song, Shuyan, Qiao, Zhen‐An, and Dai, Sheng. 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. United States: N. p., 2021. Web. doi:10.1002/advs.202004943.
Xiong, Hailong, Qian, Ruicheng, Liu, Zhilin, Zhang, Rui, Sun, Ge, Guo, Bingkong, Du, Fei, Song, Shuyan, Qiao, Zhen‐An, & Dai, Sheng. 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. United States. https://doi.org/10.1002/advs.202004943
Xiong, Hailong, Qian, Ruicheng, Liu, Zhilin, Zhang, Rui, Sun, Ge, Guo, Bingkong, Du, Fei, Song, Shuyan, Qiao, Zhen‐An, and Dai, Sheng. Sat . "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". United States. https://doi.org/10.1002/advs.202004943. https://www.osti.gov/servlets/purl/1777692.
@article{osti_1777692,
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},
author = {Xiong, Hailong and Qian, Ruicheng and Liu, Zhilin and Zhang, Rui and Sun, Ge and Guo, Bingkong and Du, Fei and Song, Shuyan and Qiao, Zhen‐An and Dai, Sheng},
abstractNote = {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. We find that 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.},
doi = {10.1002/advs.202004943},
journal = {Advanced Science},
number = n/a,
volume = n/a,
place = {United States},
year = {Sat Mar 20 00:00:00 EDT 2021},
month = {Sat Mar 20 00:00:00 EDT 2021}
}

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