锂电池负极材料钛酸锂的研究进展

Research progress of lithium titanate as cathode material for lithium batteries

锂离子电池作为如今乘用车使用的重要电池,受到了广泛的关注,涉及的技术也更新较快。在锂离子电池的结构中,对电池性能起决定作用的是负极材料。传统石墨负极材料由于具有放电电位低、易析出锂枝晶、扩散速率低等缺点已逐渐被淘汰。钛酸锂(Li4Ti5O12,LTO)是一种无机化合物,它作为负极材料,对锂离子电池性能的提升有显著作用。就锂电池负极材料钛酸锂的优势原理进行阐述,对钛酸锂的制备及改性研究进行分析,从而为锂电池负极材料钛酸锂的制备提供参考。

As an important battery used in passenger cars,lithium-ion battery has received extensive attention,and the technology involved has also speeded up the upgrade cycle.In the structure of lithium-ion battery,the cathode material plays a decisive role in the performance of the battery.Traditional graphite anode materials have been gradually eliminated because of their low discharge potential,easy to precipitate lithium dendrites and low diffusion rate.Li4Ti5O12 is an inorganic compound,As a negative electrode material,it can significantly improve the performance of lithium-ion batteries.In this paper,the advantages and principles of lithium titanate as cathode material for lithium batteries are described,the current preparation of lithium titanate is discussed,and the modification research of lithium titanate is described,so as to provide theoretical and practical reference for the preparation of lithium titanate as cathode material for lithium batteries.