Issue 46, 2020

Improving the structural and cyclic stabilities of P2-type Na0.67MnO2 cathode material via Cu and Ti co-substitution for sodium ion batteries

Abstract

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 gāˆ’1 and a capacity retention of 82.5% after 300 cycles. NMCT also exhibits good structural stability upon electrochemical de/intercalation processes as observed by operando XRD. 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).

Graphical abstract: Improving the structural and cyclic stabilities of P2-type Na0.67MnO2 cathode material via Cu and Ti co-substitution for sodium ion batteries

Supplementary files

Article information

Article type
Communication
Submitted
24 Feb 2020
Accepted
21 Apr 2020
First published
28 Apr 2020

Chem. Commun., 2020,56, 6293-6296

Improving the structural and cyclic stabilities of P2-type Na0.67MnO2 cathode material via Cu and Ti co-substitution for sodium ion batteries

X. Zhang, F. Qiu, K. Jiang, P. He, M. Han, S. Guo and H. Zhou, Chem. Commun., 2020, 56, 6293 DOI: 10.1039/D0CC01442G

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