Preparation and Electrochemical Performance of Co Doped P3-KxMnO2-Reference-Cited by-同舟云学术

Preparation and Electrochemical Performance of Co Doped P3-K_xMnO₂

Published:2021-10-01 Issue:10 Volume:16 Page:1528-1536
ISSN:1555-130X
Container-title:Journal of Nanoelectronics and Optoelectronics
language:en
Short-container-title:Journal of Nanoelectronics and Optoelectronics

Author:

Shi Qinhao¹,Xia Fang²,Xia Zhonghong¹,Huang Qiu-An¹,Zhao Yufeng¹

Affiliation:

1. Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai, 200444, China

2. Key Laboratory of Applied Chemistry in Hebei Province, Yanshan University, Qinhuangdao, 066004, China

Abstract

Most of the cathode materials for potassium ion batteries (PIBs) suffer from poor structural stability due to the large ionic radius of K+, thereby leading to an inferior electrochemical performance. In this work, a representative P3-K0.51Mn0.73Co0.27O2 (KCM) is successfully synthesized by a sol–gel method. The crystal structure is characterized through various characterization means, and the electrochemical performance is tested. The as-prepared KCM sample delivers a high discharge capacity of 100.4 mAh g−1 at the current density of 0.1 C, and a specific capacity of 76 mAh g−1 is obtained after 150 cycles with a capacity retention of 77.6%. The superior structural stability, as evidenced by structural variation of less than 1% in terms of the unit cell parameters (c-axis) via ex-situ XRD, highlights the potential application prospects of this cathode materials.

Publisher

American Scientific Publishers

Subject

Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials

Reference26 articles.

1. Rational design of Na0.67Ni0.2Co0.2Mn0.6O2 microsphere cathode material for stable and low temperature sodium ion storage.;Wang;Chemical Engineering Journal,2022.

2. Construction nasicon-type NaTi2(PO4)3 nanoshell on the surface of P2-type Na0.67Co0.2Mn0.8O2 cathode for superior room/low-temperature sodium storage.;Li;Chemical Engineering Journal,2020.

3. Progress in and application prospects of advanced and costeffective iron (Fe)-based cathode materials for sodium-ion batteries.;Wang;Journal of Materials Chemistry A,2021.

4. Fep quantum dots confined in carbon-nanotube-grafted P-doped carbon octahedra for highrate sodium storage and full-cell applications.;Shi;Advanced Functional Materials,2020.