Issue 13, 2012

Cation disordered rock salt phase Li2CoTiO4 as a potential cathode material for Li-ion batteries

Abstract

Li2CoTiO4 as a new titanate cathode material for Li-ion batteries was successfully synthesized by a sol–gel process. It had a cation disordered rock salt structure and showed an excellent cycle stability at room temperature. After coating with carbon, the Li2CoTiO4 possessed a high discharge capacity of 144.3 mAh g−1. The poor conductivity and lithium ion diffusion coefficient of pure Li2CoTiO4 are the main reasons for the limited electrochemical performance of the lithium batteries. The irreversible capacity loss during the first cycle was assigned to the irreversibility of the structural changes.

Graphical abstract: Cation disordered rock salt phase Li2CoTiO4 as a potential cathode material for Li-ion batteries

Article information

Article type
Paper
Submitted
01 Nov 2011
Accepted
28 Jan 2012
First published
17 Feb 2012

J. Mater. Chem., 2012,22, 6200-6205

Cation disordered rock salt phase Li2CoTiO4 as a potential cathode material for Li-ion batteries

M. Yang, X. Zhao, Y. Bian, L. Ma, Y. Ding and X. Shen, J. Mater. Chem., 2012, 22, 6200 DOI: 10.1039/C2JM15587G

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