锂电池极片微结构优化及可控制备技术进展

Progress on Microstructural Optimization and Controllable Preparation Technology for Lithium Ion Battery Electrodes

锂离子电池是应用最广泛的电化学储能器件,目前,经济的快速发展对其提出了更高的要求。电极微观结构对电池性能影响显著,电极微结构精细设计及可控制备成为锂离子电池领域的研究热点之一。本文结合锂离子电池最新发展趋势,总结了锂离子电池电极反应基本过程及电极微结构的表征技术,然后概述了近几年电极微观结构的设计与优化,并分析了电极微结构的关键特征。基于理想的电极结构,综述了电极可控制备技术的最新进展。

Lithium-ion batteries are the most widely used energy storage device,and currently,the rapid development of economy has put forward higher requirements on their performances. Electrode microstructure has significant influence on the battery performance, therefore, elaborate microstructure design and controllable preparation thereof is becoming one of the hot topics in this field. In this paper,according to the latest development trend of lithium ion batteries,the basic electrochemical process and the microstructural characterization technology of the lithium ion battery electrode are enumerated. Then the design and optimization of the electrode in recent years are summarized, and the key microstructural features are discussed. Based on an ideal electrode structure,the latest development in controllable electrode preparation technology is reviewed.