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Graphitized Needle Cokes and Natural Graphites for Lithium Intercalation

Published online by Cambridge University Press:  10 February 2011

T. D. Tran
Affiliation:
Chemistry & Materials Science Department, Lawrence Livermore National Laboratory, Livermore, CA 94550
L. M. Spellman
Affiliation:
Chemistry & Materials Science Department, Lawrence Livermore National Laboratory, Livermore, CA 94550
R. W. Pekala
Affiliation:
Chemistry & Materials Science Department, Lawrence Livermore National Laboratory, Livermore, CA 94550
W. M. Goldberger
Affiliation:
Superior Graphite Co., Chicago, IL 60606
K. Kinoshita
Affiliation:
Energy and Environment Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
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Abstract

The microstructure of carbonaceous materials strongly affect their ability to electrochemically intercalate lithium [1]. The fractional intercalation capacity (x in LixC 6) for various types of amorphous and graphitic carbons can vary over a range between 0 to 1. Capacities exceeding that of graphite (372 mAh/g or LiC6) can be obtained from chemically doped (i.e., with phosphorous [2]) materials or from carbonized organic precursors pyrolyzed at low temperatures (<900°C) [3]. Additional chemical effects apparently influence the carbon electrochemical behavior in these cases.

Type
Research Article
Copyright
Copyright © Materials Research Society 1996

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References

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