High-Performance LiNi0.5Mn1.5O4 Spinel Controlled by Mn3+Concentration and Site Disorder

被引：454

作者：

Xiao, Jie ^{[1
]}

Chen, Xilin ^{[1
]}

Sushko, Peter V. ^{[2
,3
]}

Sushko, Maria L. ^{[1
]}

Kovarik, Libor ^{[1
]}

Feng, Jijun ^{[4
]}

Deng, Zhiqun ^{[1
]}

Zheng, Jianming ^{[1
]}

Graff, Gordon L. ^{[1
]}

Nie, Zimin ^{[1
]}

Choi, Daiwon ^{[1
]}

Liu, Jun ^{[1
]}

Zhang, Ji-Guang ^{[1
]}

Whittingham, M. Stanley ^{[4
]}

机构：

[1] Pacific NW Natl Lab, Richland, WA 99352 USA

[2] UCL, Dept Phys & Astron, London WC1E 6BT, England

[3] UCL, London Ctr Nanotechnol, London WC1E 6BT, England

[4] SUNY Binghamton, Dept Chem, Binghamton, NY 13902 USA

来源：

ADVANCED MATERIALS | 2012年 / 24卷 / 16期

基金：

英国工程与自然科学研究理事会;

关键词：

structure-property relationship; high voltage spinel; cathode; lithium ion batteries; energy storage; LITHIUM-ION BATTERIES; V CATHODE MATERIAL; ELECTROCHEMICAL PROPERTIES; RATE CAPABILITY; PARTICLE-SIZE; AB-INITIO; LI; OXIDES; INSERTION; THERMOCHEMISTRY;

D O I：

10.1002/adma.201104767

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The complex correlation between Mn 3+ ions and the disordered phase in the lattice structure of high voltage spinel, and its effect on the charge transport properties, are revealed through a combination of experimental study and computer simulations. Superior cycling stability is achieved in LiNi 0.45Cr 0.05Mn 1.5O 4 with carefully controlled Mn 3+ concentration. At 250th cycle, capacity retention is 99.6% along with excellent rate capabilities. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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页码：2109 / 2116

页数：8

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