Chem. J. Chinese Universities ›› 2023, Vol. 44 ›› Issue (12): 20230340.doi: 10.7503/cjcu20230340

• Physical Chemistry • Previous Articles     Next Articles

Exploration of Gel-electrolyte Soft Package Sodium-ion Battery

HUANG Huawen1,2(), FAN Shanshan2, ZHAO Wei2, TANG Weichao2, GUO Panlong2, QIU Yaming1,2()   

  1. 1.School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510641,China
    2.Zhuhai CosMX Battery Co. ,Ltd. ,Zhuhai 519600,China
  • Received:2023-07-27 Online:2023-12-10 Published:2023-09-26
  • Contact: HUANG Huawen, QIU Yaming E-mail:huanghuawen888@163.com;610212110@qq.com
  • Supported by:
    the Chinese Postdoctoral Science Foundation(2022M713669)

Abstract:

Sodium-ion battery has been widely concerned in recent years because of its unique advantages in low-cost and work in low-temperature environment. The layered oxide cathode is first introduced due to its preparation process similar to that of the LiNi x Co y M1-xy O2(NCM) cathode material. However, due to the high residual alkali of sodium base layered oxide cathode and the lack of stability, it is easy to lead to the oxidation and decomposition of electrolyte in the long cycling test, which leads to gas production in the cell, limiting the application and development of soft package sodium-ion battery. In this work, the strategy of gel electrolyte was used to construct gel electrolyte soft package sodium-ion battery. The results show that the gel electrolyte has a significant role in inhibiting the gas production of the cell cycle, and can improve the safety performance of the cell, which provides a new idea for the development of soft packed sodium-ion battery.

Key words: Gel-electrolyte, Sodium-ion battery, Soft package battery, Gas production in cell, Safety performance

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