高比能量锂离子电池正极材料的研究进展

doi:10.12028/j.issn.2095-4239.2018.0060

摘要/Abstract

摘要： 便携式电子设备的微型化、轻量化与电动汽车、电网储能设备的飞速发展，对高能量密度的锂离子电池的研发和性能表现提出了越来越高的要求。锂离子电池正极材料是锂离子电池的核心，其提供锂离子并参与电化学反应，因此改善正极材料性能是提高锂离子电池能量密度的关键。人们需要进一步研究开发成本较低、安全性更好的高能量密度新型锂离子电池正极材料。本文主要从提升正极材料的比容量和工作电压两方面介绍三元、富锂锰基材料和高电位镍锰酸锂等高比能量正极材料的介尺度结构设计、制备与性能调控研发进展。

关键词: 锂离子电池, 正极材料, 能量密度, 电化学性能

Abstract: With the miniaturization and lighting of the portable electronic products, and the rapid development of electric vehicles and grid energy storage devices, lithium ion batteries with higher energy density and higher performances are increasingly demanded. Cathode materials play a key role in lithium ion batteries and their improvements are crucial for enhancing energy density of lithium ion batteries. Nowadays, cathode materials of high energy density with lower production cost and high safety for lithium-ion batteries has been of great significance. This paper summarizes recent progress in cathode materials from the prospects of enhancing the specific capacity and the working voltage, and mainly focuses on design and preparation of meso-scale structured nickel-rich and lithium-rich layered oxide and spinel oxide cathode materials with tunable electrochemical performances.

Key words: lithium ion battery, cathode material, energy density, electrochemical performance

中图分类号:

TQ028.8

熊凡, 张卫新, 杨则恒, 陈飞, 王同振, 陈章贤. 高比能量锂离子电池正极材料的研究进展[J]. 储能科学与技术, 2018, 7(4): 607-617.

XIONG Fan, ZHANG Weixin, YANG Zeheng, CHEN Fei, WANG Tongzhen, CHEN Zhangxian. Research progress on cathode materials for high energy density lithium ion batteries[J]. Energy Storage Science and Technology, 2018, 7(4): 607-617.

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