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Electrochemical Energy Reviews ›› 2024, Vol. 7 ›› Issue (1): 3-.doi: 10.1007/s41918-023-00196-4

• • 上一篇    下一篇

Research Progress on the Solid Electrolyte of Solid-State Sodium-Ion Batteries

Shuzhi Zhao1, Haiying Che2, Suli Chen3, Haixiang Tao2, Jianping Liao2, Xiao Zhen Liao1, Zi Feng Ma1,4   

  1. 1. Shanghai Electrochemical Energy Devices Research Center, Department of Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
    2. Zhejiang Natrium Energy Co., Ltd., Shaoxing 312300, Zhejiang, China;
    3. School of Chemical and Materials Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China;
    4. Shaoxing Research Institute of Renewable Energy and Molecular Engineering Shanghai Jiao Tong University, Shaoxing 312300, Zhejiang, China
  • 收稿日期:2023-04-16 修回日期:2023-01-07 发布日期:2024-04-03
  • 通讯作者: Haiying Che,E-mail:chysyx@sjtu.edu.cn;Zi-Feng Ma,E-mail:zfma@sjtu.edu.cn E-mail:chysyx@sjtu.edu.cn;zfma@sjtu.edu.cn
  • 基金资助:
    This work was supported by the Natural Science Foundation of China (22005190, 21938005), the Science & Technology Commission of Shanghai Municipality (20QB1405700, 19DZ1205500), and the Zhejiang Key Research and Development Program (2020C01128).

Research Progress on the Solid Electrolyte of Solid-State Sodium-Ion Batteries

Shuzhi Zhao1, Haiying Che2, Suli Chen3, Haixiang Tao2, Jianping Liao2, Xiao Zhen Liao1, Zi Feng Ma1,4   

  1. 1. Shanghai Electrochemical Energy Devices Research Center, Department of Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
    2. Zhejiang Natrium Energy Co., Ltd., Shaoxing 312300, Zhejiang, China;
    3. School of Chemical and Materials Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China;
    4. Shaoxing Research Institute of Renewable Energy and Molecular Engineering Shanghai Jiao Tong University, Shaoxing 312300, Zhejiang, China
  • Received:2023-04-16 Revised:2023-01-07 Published:2024-04-03
  • Contact: Haiying Che,E-mail:chysyx@sjtu.edu.cn;Zi-Feng Ma,E-mail:zfma@sjtu.edu.cn E-mail:chysyx@sjtu.edu.cn;zfma@sjtu.edu.cn
  • Supported by:
    This work was supported by the Natural Science Foundation of China (22005190, 21938005), the Science & Technology Commission of Shanghai Municipality (20QB1405700, 19DZ1205500), and the Zhejiang Key Research and Development Program (2020C01128).

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摘要： Because sodium-ion batteries are relatively inexpensive, they have gained significant traction as large-scale energy storage devices instead of lithium-ion batteries in recent years. However, sodium-ion batteries have a lower energy density than lithium-ion batteries because sodium-ion batteries have not been as well developed as lithium-ion batteries. Solid-state batteries using solid electrolytes have a higher energy density than liquid batteries in regard to applications with sodium-ion batteries, making them more suitable for energy storage systems than liquid batteries. Due to their low ionic conductivity, solid electrolytes are currently unable to achieve comparable performance to liquid electrolytes at room temperature. In this review, we discuss the advancements in SSEs applied to sodium-ion batteries in recent years, including inorganic solid electrolytes, such as Na–β-Al2O3, NASICON and Na3PS4, polymer solid electrolytes based on PEO, PVDF-HFP and PAN, and plastic crystal solid electrolytes mainly composed of succinonitrile. Additionally, appropriate solutions for low ionic conductivity, a narrow electrochemical stability window and poor contact with electrodes, which are the significant flaws in current SSEs, are discussed in this review.

关键词: Energy storage, Sodium-ion batteries, Solid-state electrolyte, Ionic conductivity, Electrochemical stability window

Abstract: Because sodium-ion batteries are relatively inexpensive, they have gained significant traction as large-scale energy storage devices instead of lithium-ion batteries in recent years. However, sodium-ion batteries have a lower energy density than lithium-ion batteries because sodium-ion batteries have not been as well developed as lithium-ion batteries. Solid-state batteries using solid electrolytes have a higher energy density than liquid batteries in regard to applications with sodium-ion batteries, making them more suitable for energy storage systems than liquid batteries. Due to their low ionic conductivity, solid electrolytes are currently unable to achieve comparable performance to liquid electrolytes at room temperature. In this review, we discuss the advancements in SSEs applied to sodium-ion batteries in recent years, including inorganic solid electrolytes, such as Na–β-Al2O3, NASICON and Na3PS4, polymer solid electrolytes based on PEO, PVDF-HFP and PAN, and plastic crystal solid electrolytes mainly composed of succinonitrile. Additionally, appropriate solutions for low ionic conductivity, a narrow electrochemical stability window and poor contact with electrodes, which are the significant flaws in current SSEs, are discussed in this review.

Key words: Energy storage, Sodium-ion batteries, Solid-state electrolyte, Ionic conductivity, Electrochemical stability window

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