O3-type Na(Mn0.25Fe0.25Co0.25Ni0.25)O2: A quaternary layered cathode compound for rechargeable Na ion batteries

被引：177

作者：

Li, Xin ^{[1
]}

Wu, Di ^{[2
]}

Zhou, Yong-Ning ^{[3
]}

Liu, Lei ^{[1
]}

Yang, Xiao-Qing ^{[3
]}

Ceder, Gerbrand ^{[1
]}

机构：

[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[2] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

[3] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2014年 / 49卷

关键词：

Na(Mn0.25Fe0.25Co0.25Ni0.25)O-2; Quaternary; Na(Ni0.5Mn0.5)O-2; Na(Fe0.3Co0.5)O-2; Sodium; Na-ion battery; ELECTROCHEMICAL PROPERTIES; SODIUM-ION; ELECTRODE;

D O I：

10.1016/j.elecom.2014.10.003

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We report a new layered Na(Mn0.25Fe0.25Co0.25Ni0.25)O-2 compound with O3 oxygen stacking. It delivers 180 mAh/g initial discharge capacity and 578 Wh/kg specific energy density with good cycling capability at high cutoff voltage. In situ X-ray diffraction (XRD) shows a reversible structure evolution of O3-P3-O3'-O3 '' upon Na de-intercalation. The excellent capacity and cycling performance at high cutoff voltage make it an important model system for studying the general issue of capacity fading in layered Na cathode compounds. (C) 2014 The Authors. Published by Elsevier B.V.

引用

页码：51 / 54

页数：4

共 19 条

[1] ELECTROCHEMICAL INTERCALATION OF SODIUM IN NAXCOO2 BRONZES [J].