Optimization of Carbon Coatings on LiFePO4

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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.%.

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Doeff, Marca M.; Wilcox, James D.; Kostecki, Robert & Lau, Grace July 14, 2005.

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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.%.

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  • Journal Name: Journal of Power Sources; Journal Volume: 163; Journal Issue: 1SI; Related Information: Journal Publication Date: 12/07/2006

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  • Report No.: LBNL--58221
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 920058
  • Archival Resource Key: ark:/67531/metadc902348

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  • July 14, 2005

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Sept. 30, 2016, 12:29 p.m.

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Doeff, Marca M.; Wilcox, James D.; Kostecki, Robert & Lau, Grace. Optimization of Carbon Coatings on LiFePO4, article, July 14, 2005; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc902348/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.