Optimized synthesis of Na2/3Ni1/3Mn2/3O2 as cathode for sodium-ion batteries by rapid microwave calcination

被引：16

作者：

Bomio, M. R. D. ^{[1
]}

Lavela, P. ^{[2
]}

Santiago, A. A. G. ^{[1
]}

Motta, F. V. ^{[1
]}

Tirado, J. L. ^{[2
]}

机构：

[1] Fed Univ Rio Grande do Norte UFRN, LSQM Lab Chem Synth Mat, Dept Mat Engn, POB 1524, Natal, RN, Brazil

[2] Univ Cordoba, Inst Univ Quim Fina & Nanoquim, Dept Quim Inorgan & Ingn Quim, Edificio Marie Curie,Campus Rabanales, Cordoba 14071, Spain

来源：

CERAMICS INTERNATIONAL | 2023年 / 49卷 / 08期

基金：

巴西圣保罗研究基金会;

关键词：

Sodium-ion batteries; Cathode; Layered oxides; Microwave calcination; P2-TYPE NA2/3NI1/3MN2/3O2; ENERGY-STORAGE; PERFORMANCE; TEMPLATE; VOLTAGE; P2;

D O I：

10.1016/j.ceramint.2022.12.105

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Microwave calcination is proposed as an alternative route to conventional heating to prepare layered P2-Na2/ 3Ni1/3Mn2/3O2 as a positive electrode for sodium-ion batteries. The sample obtained by the fastest conditions, with a heating ramp of 20 degrees C min-1 for only 2 h, showed well-crystallized rounded particles. Cyclic voltammetry and impedance spectroscopy evidenced a low internal cell resistance, and high diffusion coefficients, which justify its capability to sustain the highest capacity at 1 C and retain the discharge capacity for at least two hundred cycles.

引用

页码：12452 / 12461

页数：10

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