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Combustion synthesis of nanoparticulate LiMgxMn1−xPO4 (x = 0, 0.1, 0.2) carbon composites

Published online by Cambridge University Press:  31 January 2011

Marca M. Doeff ,
Jiajun Chen ,
Thomas E. Conry ,
Ruigang Wang ,
James Wilcox  and
Albert Aumentado
Albert Aumentado
Affiliation:
Materials Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720
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Abstract

A combustion synthesis technique was used to prepare nanoparticulate LiMgxMn1−xPO4 (x = 0, 0.1, 0.2)/carbon composites. Powders consisted of carbon-coated particles about 30 nm in diameter, which were partly agglomerated into larger secondary particles. The utilization of the active materials in lithium cells depended most strongly on the post-treatment and the Mg content and was not influenced by the amount of carbon. Best results were achieved with a hydrothermally treated LiMg0.2Mn0.8PO4/C composite, which exhibited close to 50% utilization of the theoretical capacity at a C/2 discharge rate.

Keywords

Energy storageLi
Type
Articles
Information
Journal of Materials Research , Volume 25 , Issue 8: Materials for Electrical Energy Storage , August 2010 , pp. 1460 - 1468
Copyright
Copyright © Materials Research Society 2010

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