Issue 11, 2012
From the journal:

Journal of Materials Chemistry

Conductive surface modification of LiFePO4 with nitrogen-doped carbon layers for lithium-ion batteries

Sukeun Yoon,†a   Chen Liao,a   Xiao-Guang Sun,a   Craig A. Bridges,a   Raymond R. Unocic,b   Jagjit Nanda,b   Sheng Dai*a  and  M. Parans Paranthaman*a  

* Corresponding authors

a Chemical Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, USA
E-mail: dais@ornl.gov, paranthamanm@ornl.gov
Fax: +1-865-574-4961
Tel: +1-865-574-5045

b Materials Science Technology Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, USA

Abstract

The surface of rod-like LiFePO4 modified with a conductive nitrogen-doped carbon layer has been prepared using hydrothermal processing followed by post-annealing in the presence of an ionic liquid. The conductive surface modified rod-like LiFePO4 exhibits good capacity retention and high rate capability as the nitrogen-doped carbon layer improves conductivity and prevents aggregation of the rods during cycling.

Graphical abstract: Conductive surface modification of LiFePO4 with nitrogen-doped carbon layers for lithium-ion batteries

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Article information

DOI
https://doi.org/10.1039/C2JM15325D
Article type
Communication
Submitted
19 Oct 2011
Accepted
17 Jan 2012
First published
31 Jan 2012

J. Mater. Chem., 2012,22, 4611-4614

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Conductive surface modification of LiFePO4 with nitrogen-doped carbon layers for lithium-ion batteries

S. Yoon, C. Liao, X. Sun, C. A. Bridges, R. R. Unocic, J. Nanda, S. Dai and M. P. Paranthaman, J. Mater. Chem., 2012, 22, 4611 DOI: 10.1039/C2JM15325D

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