科学通报(英文版)2024，Vol.69Issue(1) ：49-58.DOI:10.1016/j.scib.2023.11.017

Oxygen-regulated spontaneous solid electrolyte interphase enabling ultra-stable solid-state Na metal batteries

Keshuang Cao Yufan Xia Haosheng Li Huiqin Huang Sikandar Iqbal Muhammad Yousaf Ben Bin Xu Wenping Sun Mi Yan Hongge Pan Yinzhu Jiang
科学通报(英文版)2024，Vol.69Issue(1) ：49-58.DOI:10.1016/j.scib.2023.11.017
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Oxygen-regulated spontaneous solid electrolyte interphase enabling ultra-stable solid-state Na metal batteries

Keshuang Cao 1Yufan Xia 1Haosheng Li 1Huiqin Huang 1Sikandar Iqbal 2Muhammad Yousaf 2Ben Bin Xu 3Wenping Sun 4Mi Yan 5Hongge Pan 6Yinzhu Jiang7
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作者信息

  • 1. School of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China;ZJU-Hangzhou Global Scientific and Technological Innovation Center,Zhejiang University,Hangzhou 311200,China
  • 2. ZJU-Hangzhou Global Scientific and Technological Innovation Center,Zhejiang University,Hangzhou 311200,China
  • 3. Mechanical and Construction Engineering,Faculty of Engineering and Environment,Northumbria University,Newcastle upon Tyne NE1 8ST,UK
  • 4. School of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China
  • 5. School of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China;State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization,Baotou Research Institute of Rare Earths,Baotou 014030,China
  • 6. School of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China;Institute of Science and Technology for New Energy,Xi'an Technological University,Xi'an 710021,China
  • 7. School of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China;ZJU-Hangzhou Global Scientific and Technological Innovation Center,Zhejiang University,Hangzhou 311200,China;State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization,Baotou Research Institute of Rare Earths,Baotou 014030,China
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Abstract

Solid-state sodium metal batteries utilizing inorganic solid electrolytes(SEs)hold immense potentials such as intrinsical safety,high energy density,and environmental sustainability.However,the interfacial inhomogeneity/instability at the anode-SE interface usually triggers the penetration of sodium dendrites into the electrolyte,leading to short circuit and battery failure.Herein,confronting with the original nonuniform and high-resistance solid electrolyte interphase(SEI)at the Na-Na3Zr2Si2PO12 interface,an oxygen-regulated SEI innovative approach is proposed to enhance the cycling stability of anode-SEs inter-face,through a spontaneous reaction between the metallic sodium(containing trace amounts of oxygen)and the Na3Zr2Si2PO12 SE.The oxygen-regulated spontaneous SEI is thin,uniform,and kinetically stable to facilitate homogenous interfacial Na+transportation.Benefitting from the optimized SEI,the assem-bled symmetric cell exhibits an ultra-stable sodium plating/stripping cycle for over 6600 h under a prac-tical capacity of 3 mAh cm-2.Quasi-solid-state batteries with Na3V2(PO4)3 cathode deliver excellent cyclability over 500 cycles at a rate of 0.5 C(1 C=117 mA cm-2)with a high capacity retention of 95.4％.This oxygen-regulated SEI strategy may offer a potential avenue for the future development of high-energy-density solid-state metal batteries.

Key words

Na metal anode/Solid-state batteries/NaSICON/Anode interface/Solid electrolyte interphase

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基金项目

Zhejiang Provincial Natural Science Foundation of China(LZ23B030003)

Fundamental Research Funds for the Central Universities(2021FZZX001-09)

出版年

2024
科学通报(英文版)
中国科学院

科学通报(英文版)

CSTPCD
ISSN：1001-6538
参考文献量1
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