化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (7) : 254-257.

开发与应用

高功率型镍锰酸锂正极材料的研究进展

作者信息 +

Research progress on LiNi_0.5Mn_1.5O₄ anode material with high power

Xie Jing, Li Shiyou, Li Chunlei, Geng Shan, Li Hongliang

Author information +

文章历史 +

Received		Published
2017-03-02		2018-07-20
Issue Date	Revised Date
2018-08-07	2017-03-02

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摘要

尖晶石结构的镍锰酸锂(LiNi_0.5Mn_1.5O₄)具有三维扩散通道,有利于锂离子的传输且结构稳定,具有高的能量密度与功率密度,是未来最具实用价值的功率型锂离子电池正极材料之一。其中倍率是评价锂离子电池功率性能的重要标准。综述了形貌控制、体相掺杂、表面包覆等多种提升LiNi_0.5Mn_1.5O₄倍率性能的方法,阐述了不同方法在改善锂离子电池电化学性能方面的作用,并指出高功率型LiNi_0.5Mn_1.5O₄正极材料目前需要解决的问题和研究方向。

Abstract

The spinel lithium nickel manganese oxide (LiNi_0.5Mn_1.5O₄) has a three-dimensional diffusion channel that facilitates the transport of Li⁺ and stable structure,which has become one of the most practical power lithium ion battery anode material due to its high energy density and power density.Rate capacity is an important criterion for evaluating the performance of Li ion battery.The method for improving the rate capability of LiNi_0.5Mn_1.5O₄ was reviewed from the aspect of morphology control,element doping and surface coating etc.,the role of different methods in improving the electrochemical performance of lithium ion battery were summarized,And the problem and research direction of high power LiNi_0.5Mn_1.5O₄ were pointed out.

关键词

高功率 / 正极材料 / 镍锰酸锂 / 倍率性能

Key words

high power / anode material / LiNi_0.5Mn_1.5O₄ / rate capability

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高功率型镍锰酸锂正极材料的研究进展[J]. 化工新型材料, 2018, 46(7): 254-257 DOI:

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