Improving the structural and cyclic stabilities of P2-type Na0.67MnO2cathode material via Cu and Ti co-substitution for sodium ion batteries

被引：30

作者：

Zhang, Xueping ^{[1
]}

Qiu, Feilong ^{[1
]}

Jiang, Kezhu ^{[1
]}

He, Ping ^{[1
]}

Han, Min ^{[1
]}

Guo, Shaohua ^{[1
]}

Zhou, Haoshen ^{[1
,2
]}

机构：

[1] Nanjing Univ, Jiangsu Key Lab Artificial Funct Mat, Collaborat Innovat Ctr Adv Microstruct, Natl Lab Solid State Microstruct,Coll Engn & Appl, Nanjing 210093, Peoples R China

[2] Natl Inst Adv Ind Sci & Technol, Energy Technol Res Inst, Tsukuba, Ibaraki 3058568, Japan

来源：

CHEMICAL COMMUNICATIONS | 2020年 / 56卷 / 46期

关键词：

CATHODE MATERIALS; PHASE; ELECTROLYTES; TRANSITION; INTERFACE;

D O I：

10.1039/d0cc01442g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An air-stable Na0.67Mn0.7Cu0.15Ti0.15O2(NMCT) has been synthesized using a solid-state method. It displays a reversible capacity of 170 mA h g(-1)and a capacity retention of 82.5% after 300 cycles. NMCT also exhibits good structural stability upon electrochemical de/intercalation processes as observed byoperandoXRD. And the result shows that the unit-cell volume change of NMCT during the whole process of Na(+)de/intercalation is only 3.2%. These data indicate that NMCT is a promising cathode material for sodium ion batteries (SIBs).

引用

页码：6293 / 6296

页数：4

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