过渡金属磷化物作为锂离子电池负极材料的研究进展

Recent Progress of Transition Metal Phosphides as Anode Materials for Lithium-ion Batteries

锂离子电池因其高能量密度、高功率密度和长循环寿命等优点,在消费电子、电动汽车和大型电网中得到越来越多的应用。为了满足不断增长的储能应用需求,人们在开发具有更高电化学性能的锂离子电池负极材料方面做了大量的研究工作。据此,概述了现阶段各种过渡金属磷化物的研究现状,重点介绍过渡金属磷化物所面临的挑战,以及面对挑战人们以提高材料的综合电化学性能为目标进行的改性工作。分别介绍了几种不同的制备方法,并且从材料的结构与调控、材料的形貌与尺寸设计、碳材料复合以及构建异质结结构四个方面介绍了相应的改性策略。将为过渡金属磷化物在锂离子电池中的应用提供重要参考。

Lithium-ion batteries are increasingly applied in consumer electronics,electric vehicles and large-scale power grids due to their various advantages both including high energy density,power density and long cycle life.In order to meet the growing demand for energy storage applications,people have done lots of research in the development of lithium-ion battery anode materials with higher electrochemical performance.Based on the current research,this article focuses on the challenges faced by transition metal phosphides and the modification strategies that people have done to improve the comprehensive electrochemical performance.Several different preparation methods are introduced respectively,and the corresponding modification methods are introduced from four aspects as fallow:The structure and control of the material,the design of the morphology and size of the material,the composite with the carbon material,and the construction of the heterojunction structure.And this review provides an important reference for the application of transition metal phosphides in lithium-ion batteries.