无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2025, Vol. 57 ›› Issue (1): 1-13.doi: 10.19964/j.issn.1006-4990.2024-0284

• 综述与专论 •    下一篇

锂离子电池正极预锂化技术研究进展

张珊珊(), 曾雨乐, 张婷, 林森, 刘程琳()   

  1. 华东理工大学国家盐湖资源综合利用工程技术研究中心,上海 200237
  • 收稿日期:2024-05-22 出版日期:2025-01-10 发布日期:2024-07-08
  • 通讯作者: 刘程琳(1986— ),男,博士,副教授,主要研究方向为电池材料开发;E-mail:liuchenglin@ecust.edu.cn
  • 作者简介:张珊珊(2000— ),女,硕士研究生在读,主要研究方向为草酸锂正极补锂剂改性研究;E-mail:2638120633@qq.com
  • 基金资助:
    国家重点研发计划项目(2023YFB4103502)

Research progress of cathode pre-lithiation technology for lithium-ion batteries

ZHANG Shanshan(), ZENG Yule, ZHANG Ting, LIN Sen, LIU Chenglin()   

  1. National Engineering Research Center for Integrated Utilization of Salt Lake Resources,East China University of Science and Technology,Shanghai 200237,China
  • Received:2024-05-22 Published:2025-01-10 Online:2024-07-08

摘要:

锂离子电池近几年在许多行业的应用呈现爆发式增长,几乎每个领域都对锂离子电池的能量密度提出了更高的要求,以满足不断提升的动力和储能需求。锂离子电池在首次充放电过程中,负极表面会形成固态电解质界面(SEI)膜,并消耗正极材料中的活性锂,造成电池容量不可逆的损失,降低了电池的首次库仑效率。研究发现,预锂化技术是解决该问题的有效途径之一,并且正极预锂化相对于负极预锂化更有优势。主要阐述了二元含锂化合物、三元含锂化合物和有机锂盐等几种常见的补锂技术,并综述了正极预锂化添加剂材料对性能优化的进展,指出面临的一些亟待解决的问题,并对未来预锂化技术进行展望。

关键词: 锂离子电池, 预锂化, 正极补锂, 首次库仑效率

Abstract:

In recent years,the application of lithium-ion batteries has seen explosive growth in various fields,and almost every field has placed higher demands on the energy density of lithium-ion batteries to meet the ever-increasing demand for power and energy storage.Nevertheless,during the initial charge/discharge cycle of a lithium-ion battery,a solid electrolyte interface(SEI) film forms on the surface of the anode,resulting in the depletion of active lithium ions in the cathode materials.This phenomenon leads to an irreversible loss of battery capacity and a reduction in the first-time coulombic efficiency of the battery.Research has demonstrated that the pre-lithiation technique represents a viable solution to the issue at hand.The findings indicate that pre-lithiation of the cathode confers greater benefits than pre-lithiation of the anode.The common lithium replenishment technologies were mainly described,such as binary lithium-containing compounds,ternary lithium-containing compounds and organic lithium salts,etc.The progress of cathode pre-lithiation additive materials in optimising performance was also reviewed.It was pointed out that there were some urgent problems to be solved,and looked forward to the future of pre-lithiation technology.

Key words: lithium-ion batteries, pre-lithiation, cathode lithium replenishment, initial coulombic efficiency

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