Issue 10, 2011
From the journal:

Energy & Environmental Science

Multi-scale study of thermal stability of lithiated graphite†

Zonghai Chen,*a   Yan Qin,a   Yang Ren,b   Wenquan Lu,a   Christopher Orendorff,c   E. Peter Rothc  and  Khalil Amine*a  

* Corresponding authors

a Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL, USA
E-mail: Zonghai.chen@anl.gov, amine@anl.gov
Tel: +1-630-252-6551

b X-Ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL, USA

c Advanced Power Sources R&D Department, Sandia National Laboratory, Albuquerque, NM, USA

Abstract

Safety remains a major issue for the graphite anode used in lithium-ion batteries. The thermal stability of lithiated graphite was studied by atomic-scale characterization and cell tests. The results revealed that the thermal decomposition of the solid–electrolyte interface is the most easily triggered chemical reaction in lithium-ion cells and plays a critical role in determining the battery safety. It was also shown that natural graphite containing a small amount of 3R graphite had much better thermal stability than mesocarbon microbeads that had no detectable 3R graphite.

Graphical abstract: Multi-scale study of thermal stability of lithiated graphite

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Article information

DOI
https://doi.org/10.1039/C1EE01786A
Article type
Paper
Submitted
20 May 2011
Accepted
15 Jun 2011
First published
05 Aug 2011

Energy Environ. Sci., 2011,4, 4023-4030

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Multi-scale study of thermal stability of lithiated graphite

Z. Chen, Y. Qin, Y. Ren, W. Lu, C. Orendorff, E. P. Roth and K. Amine, Energy Environ. Sci., 2011, 4, 4023 DOI: 10.1039/C1EE01786A

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