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A Novel Method for Obtaining a High Performance Carbon Anode for Li-Ion Secondary Batteries

Published online by Cambridge University Press:  10 February 2011

T. Takamura
Affiliation:
Advanced Material Division, Petoca, Ltd, 3–6 Kioicho, Chiyodaku, Tokyo 102–0094, Japan
K. Sumiya
Affiliation:
Department of Chemistry, Rikkyo University, 3–34–1 Nishiikebukuro, Toshimaku, Tokyo 171–0021, Japan
Y. Nishijima
Affiliation:
Department of Chemistry, Rikkyo University, 3–34–1 Nishiikebukuro, Toshimaku, Tokyo 171–0021, Japan
J. Suzuki
Affiliation:
Department of Chemistry, Rikkyo University, 3–34–1 Nishiikebukuro, Toshimaku, Tokyo 171–0021, Japan
K. Sekine
Affiliation:
Department of Chemistry, Rikkyo University, 3–34–1 Nishiikebukuro, Toshimaku, Tokyo 171–0021, Japan
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Abstract

Entire surfaces of the pitch-based well graphitized and poorly graphitized carbon fibers were covered with an evaporated metallic film of Au, Ag, Sn, or Zn, whose thickness was varied from 100 to 600 Å. Li dope and undope characteristics as the anode of Li-ion secondary battery were compared for the samples with and without evaporated film. Not only high rate charge/discharge characteristics but cycleability have been realized to be improved remarkably for the sample whose surface was covered with a thin metal film.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

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