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ECS Meeting Abstracts, 1(MA2005-03), p. 3-3, 2006

DOI: 10.1149/ma2005-03/1/3

Elsevier, Journal of Power Sources, 1(163), p. 180-184

DOI: 10.1016/j.jpowsour.2005.11.075

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Optimization of carbon coatings on LiFePO4

Journal article published in 2006 by Marca M. Doeff ORCID, James D. Wilcox, Robert Kostecki, Grace Lau
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The electrochemical performance of LiFePO{sub 4} in lithium cells is strongly dependent on the structure (disordered/graphene or D/G ratio) of the in situ carbon produced during synthesis from carbon-containing precursors. Addition of pyromellitic acid (PA) prior to final calcination results in lower D/G ratios, yielding a higher-rate material. Further, improvements in electrochemical performance are realized when graphitization catalysts such as ferrocene are also added during LiFePO{sub 4} preparation, although overall carbon content is still less than 2 wt.%.