期刊
CERAMICS INTERNATIONAL
卷 49, 期 8, 页码 12452-12461出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2022.12.105
关键词
Sodium-ion batteries; Cathode; Layered oxides; Microwave calcination
Microwave calcination is proposed as an alternative route to prepare layered P2-Na2/ 3Ni1/3Mn2/3O2 for sodium-ion batteries. The sample obtained under the fastest conditions of a heating ramp of 20 degrees C min-1 for 2 hours showed well-crystallized rounded particles. It exhibited low internal cell resistance and high diffusion coefficients, allowing for the highest capacity at 1 C and maintaining discharge capacity for at least two hundred cycles.
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据