高等学校化学学报 ›› 2023, Vol. 44 ›› Issue (12): 20230340.doi: 10.7503/cjcu20230340

• 物理化学 • 上一篇    下一篇

凝胶电解质软包钠离子电池的研究

黄华文1,2(), 范珊珊2, 赵伟2, 唐伟超2, 郭盼龙2, 邱亚明1,2()   

  1. 1.华南理工大学化学与化工学院, 广州 510641
    2.珠海冠宇电池股份有限公司, 珠海 519600
  • 收稿日期:2023-07-27 出版日期:2023-12-10 发布日期:2023-09-26
  • 通讯作者: 黄华文,邱亚明 E-mail:huanghuawen888@163.com;610212110@qq.com
  • 基金资助:
    中国博士后科学基金(2022M713669)

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)

摘要:

近年来, 钠离子电池因其在成本和低温性能方面具有独特优势而被广泛关注. 由于层状氧化物正极与锂离子电池三元正极材料类似的制备工艺被率先推出, 并将其与硬碳负极搭配组建钠离子电池. 但是, 由于钠离子电池层状氧化物残碱高、 稳定性欠缺, 在长循环过程中易引发电解液氧化分解而导致电芯产气, 限制了软包钠离子电池的应用. 本文采用凝胶电解质策略构建了凝胶电解质软包钠离子电池, 并研究了该电池的电化学性能. 结果表明, 凝胶电解质对抑制电芯循环产气有显著作用, 同时可以提高电芯的安全性能.

关键词: 凝胶电解质, 钠离子电池, 软包电池, 电芯产气, 安全性能

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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