快充型锂离子电池电极材料与电解液结构调控及设计
Structural Regulation and Design of Electrode Materials and Electrolytes for Fast-Charging Lithium-Ion Batteries
玉笛声 1刘昌林 1林雪 1盛利志 1江丽丽2
作者信息
- 1. 北华大学材料科学与工程学院 吉林 132013
- 2. 吉林化工学院材料科学与工程学院 吉林 132022
- 折叠
摘要
实现锂离子电池的快速充电是促进电动汽车普及、解决环境和能源问题的有效途径.然而,常规锂离子电池体系在快速充电条件下的缓慢动力学和安全风险的增加严重阻碍了该技术的实际应用.本文综述了快充型锂离子电池电极材料和电解液在结构调控与设计方面的研究进展.首先,详细介绍了通过电极材料的结构调控来提高锂离子在电极材料中扩散速度的方法.然后,阐述了通过对锂离子溶剂化结构的调控来提高锂离子在电解液中的传输和相界面处转移速度的方法.最后,对快充型锂离子电池所面临的关键科学问题进行了总结以及对未来的研究方向进行了展望.
Abstract
Achieving fast charging of lithium-ion batteries is an effective way to promote the popularity of electric vehicles and solve environmental and energy problems.However,the slow kinetics and increased safety risks of conventional lithium-ion battery systems under fast charging conditions severely hinder the practical application of this technology.This paper reviews the latest research progress in the structural regulation and design of electrode materials and electrolytes for fast-charging lithium-ion batteries.First,we systematically introduce the research progress made in recent years within the scope of improving the diffusion rate of Li-ion in electrode materials by structural modulation of electrode materials.The review focused on optimizing the ion/electron conductivity of the materials and shortening the Li-ion transfer path.Then,we systematically introduce the methods to improve the fast charging performance through the regulation and design of electrolytes,in terms of improving the ion conductivity of electrolytes and regulating Li-ion solvation structure and then highlight the acceleration of Li-ion de-solvation process by regulating the lithium salt concentration and Li-ion solvent interactions with the goal of achieving promotion of Li-ion transfer at the phase interface.Finally,the key scientific issues facing fast-charging Li-ion batteries is summarized as well as the future research directions.
关键词
负极材料/正极材料/电解液/快充/锂离子电池Key words
anode materials/cathode material/electrolytes/fast-charging/lithium-ion batteries引用本文复制引用
基金项目
吉林省科技发展计划(YDZJ202301ZYTS293)
吉林省科技发展计划(20210101065JC)
国家自然科学基金项目(51902006)
国家留学基金委项目(202108220125)
吉林市科技局杰出青年人才基金项目(20210103112)
出版年
2024
NETL
NSTL
万方数据