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Ball-milling: an alternative way for the preparation of anodes for lithium-ion batteries

Published online by Cambridge University Press:  11 February 2011

Daniel Guérard  and
Raphaël Janot
Daniel Guérard
Affiliation:
Laboratoire de Chimie du Solide Minéral, UMR 7555 CNRS, UHP Nancy, BP 239, 54506 Vandoeuvre lès Nancy Cedex, France
Raphaël Janot
Affiliation:
Laboratoire de Chimie du Solide Minéral, UMR 7555 CNRS, UHP Nancy, BP 239, 54506 Vandoeuvre lès Nancy Cedex, France
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Abstract

The preparation of new anodic materials for lithium-ion batteries is possible by ball-milling within liquid media. Those powders can be as diverse as: highly anisometric graphite particles (geometrical anisotropy around 100), graphite-maghemite (γ Fe2O3) composites and graphite-intercalation compounds with high lithium contents (e.g. LiC3 is obtained by ball-milling of Li + 2C powders). These phases are the first superdense graphite-lithium compounds stable under ambient pressure and lead to a capacity of 1 Ah/g as primary battery and 370 mAh/g as secondary one. The synthesis and characterizationschemical analysis, XRD, pycnometry, TEM, SEM, 7Li NMR, magnetic measurements) are presented for each materials as well as the electrochemical behavior.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 756: Symposia EE/FF – Solid-State Ionics – Materials for Fuel Cells and Fuel Processors , 2002 , EE8.5
Copyright
Copyright © Materials Research Society 2003

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References

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