储能科学与技术 ›› 2024, Vol. 13 ›› Issue (1): 130-142.doi: 10.19799/j.cnki.2095-4239.2023.0777

• 高比能二次电池关键材料与先进表征专刊 • 上一篇    下一篇

锂离子电池快充石墨负极材料研究进展

廖雅贇1,2(), 周峰2, 张颖曦2, 吕途安2, 何阳2, 陈晓燕2, 霍开富2()   

  1. 1.华中科技大学中欧清洁与可再生能源学院
    2.华中科技大学武汉光电国家研究中心,湖北 武汉 430074
  • 收稿日期:2023-10-31 修回日期:2023-11-15 出版日期:2024-01-05 发布日期:2024-01-22
  • 通讯作者: 霍开富 E-mail:liaoyy20000702@163.com;kfhuo@hust.edu.cn
  • 作者简介:廖雅贇(2000—),女,硕士研究生,研究方向为锂离子电池负极材料设计,E-mail:liaoyy20000702@163.com
  • 基金资助:
    国家重点研发计划资助(2022YFB2404800)

Research progress on fast-charging graphite anode materials for lithium-ion batteries

Yayun LIAO1,2(), Feng ZHOU2, Yingxi ZHANG2, Tu'an LV2, Yang HE2, Xiaoyan CHEN2, Kaifu HUO2()   

  1. 1.China -EU Institute for Clean and Renewable Energy, Huazhong University of Science and Technology
    2.Wuhan photoelectric National Research Center, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
  • Received:2023-10-31 Revised:2023-11-15 Online:2024-01-05 Published:2024-01-22
  • Contact: Kaifu HUO E-mail:liaoyy20000702@163.com;kfhuo@hust.edu.cn

摘要:

关键词: 锂离子电池, 石墨负极, 改性策略, 快充性能, 功率特性

Abstract:

Lithium-ion batteries (LIBs) currently dominate the electric vehicle and energy-storage sectors. However, conventional LIBs using graphite anode materials suffer from slow lithium diffusion dynamics and Li metal plating, particularly under fast-charging conditions. These limitations hinder our ability to meet the growing demand for fast-charging and discharging applications. In this review, we analyze the main challenges associated with fast-charging graphite anode materials, including their intrinsic layered structure and large concentration polarization. Furthermore, we summarize the methods developed to improve the fast-charging performance of graphite anodes through structural design, chemical modification, and surface coating strategies. The mechanisms of high ion electron diffusion and low interface resistance in fast-charging graphite anode materials have been emphasized. Finally, the current issues and possible future research directions in this field are discussed. Based on previous studies, we propose that hard-carbon-coated microcrystalline graphite is a promising anode material for high-power and high-energy-density LIBs.

Key words: lithium-ion battery, graphite anode, modification strategies, fast-charging, power performance

中图分类号: