储能科学与技术 ›› 2023, Vol. 12 ›› Issue (6): 1815-1830.doi: 10.19799/j.cnki.2095-4239.2023.0125

• 储能材料与器件 • 上一篇    下一篇

含有机硼的锂离子电池聚合物电解质的研究进展

黄凌锋1(), 韩东梅2, 黄盛1, 王拴紧1, 肖敏1(), 孟跃中1   

  1. 1.中山大学材料科学与工程学院,广东省低碳化学与过程节能重点实验室,广东 广州 510006
    2.中山大学化学工程与技术学院,广东 珠海 519082
  • 收稿日期:2023-03-09 修回日期:2023-03-27 出版日期:2023-06-05 发布日期:2023-06-21
  • 通讯作者: 肖敏 E-mail:huanglf28@mail2.sysu.edu.cn;stsxm@mail.sysu.edu.cn
  • 作者简介:黄凌锋(2000—),男,硕士研究生,研究方向为锂金属电池聚合物固态电解质,E-mail:huanglf28@mail2.sysu.edu.cn
  • 基金资助:
    国家自然科学基金项目(22179149);广东省基础与应用基础研究基金项目(2021A1515010731);国家重点研发计划-变革性技术关键科学问题专项(2019YFA0705701)

Research progress of polymer electrolytes containing organoboron for lithium-ion batteries

Lingfeng HUANG1(), Dongmei HAN2, Sheng HUANG1, Shuanjin WANG1, Min XIAO1(), Yuezhong MENG1   

  1. 1.The Key of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, Guangdong, China
    2.School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, Guangdong, China
  • Received:2023-03-09 Revised:2023-03-27 Online:2023-06-05 Published:2023-06-21
  • Contact: Min XIAO E-mail:huanglf28@mail2.sysu.edu.cn;stsxm@mail.sysu.edu.cn

摘要:

由于固态聚合物电解质具有较高的安全性、柔性、与电极的界面兼容性,易加工,锂聚合物固态电池成为一种有前景的、能满足高能量密度和高安全性要求的储能设备。有机硼化合物具有设计多样性、热稳定性好、能提高电解质锂离子迁移数等特点,在锂离子电池聚合物电解质中被广泛研究。本文通过对近年来相关文献的调研,综述了含有机硼的锂离子电池聚合物电解质的最新进展,介绍了锂离子电池聚合物电解质的优势、组成和分类,详细阐述了硼酸阴离子型单离子聚合物电解质、硼酸酯型聚合物电解质以及硼酸锂盐、硼酸酯、硼烷电解质添加剂在聚合物锂离子电池中的应用。综合分析表明,在聚合物电解质中引入含硼基团能提升电解质的锂离子迁移数、抑制锂枝晶的生长,使用有机硼电解质添加剂能改善界面接触、在电极和电解质间构建稳定的SEI膜。最后指出含有机硼的聚合物电解质实际应用面临的挑战,并对未来可能进行的研究方向进行了展望。本文旨在突出硼元素在聚合物电解质中的应用潜力,为锂聚合物固态电池的研究发展提供新的思路。

关键词: 硼, 聚合物电解质, 锂离子电池, 电解质添加剂

Abstract:

Polymer-based solid-state lithium batteries have become a promising energy storage device that can meet the high energy density and high safety requirements due to the high safety, flexibility, interface compatibility with electrodes, and easy processing of solid polymer electrolytes. Organoboron compounds have received significant attention in the research on polymer electrolytes for lithium-ion batteries because of their wide range of design possibilities, excellent thermal stability, and the prospect of increasing the Li+ transference number of electrolytes. This paper summarizes the latest research progress of polymer electrolytes, containing organoboron for lithium-ion batteries. First, the advantages, composition, and classification of polymer electrolytes for lithium-ion batteries are briefly introduced. Then, the application of anionic borate-based single-ion conducting and borate ester-based polymer electrolyte, borate lithium salts, boron ester, and borane electrolyte additives in polymer lithium-ion batteries are introduced in detail. The comprehensive analysis shows that boron-containing groups, covalently linked to the polymer electrolyte, can increase the Li+ transference number and suppress the growth of lithium dendrites. Using organoboron electrolyte additives can improve the interface contact and construct a stable SEI between the electrode and electrolyte. Finally, the challenges facing the practical application of polymer electrolytes containing organoboron are pointed out, and future research directions are prospected. This review aims to highlight the potential application of boron in polymer electrolytes and provide new insights for the research and development of polymer-based solid-state lithium batteries.

Key words: boron, polymer electrolytes, lithium-ion batteries, electrolyte additives

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