Carbon-coated silicon particle powders as the anode material...

Details Carbon-coated silicon particle powders as the anode material... Carbon-coated silicon particle powders as the anode material...

2003-12-19

2009-11-17

Lightfoot, Elena T (Department: 1792)

Coating processes

Particles, flakes, or granules coated or encapsulated

C427S228000

Reexamination Certificate

active

07618678

ABSTRACT:
A process for the production of coated silicon/carbon particles comprising:providing a carbon residue forming material;providing silicon particles;coating said silicon particles with said carbon residue forming material to form coated silicon particles;providing particles of a carbonaceous material;coating said particles of carbonaceous material with said carbon residue forming material to form coated carbonaceous particles;embedding said coated silicon particles onto said coated carbonaceous particles to form silicon/carbon composite particles;coating said silicon/carbon composite particles with said carbon residue forming material to form coated silicon/carbon composite particles; andstabilizing the coated composite particles by subjecting said coated composite particles to an oxidation reaction.The coated composite particles will have a substantially smooth coating. The particles may be coated with multiple layers of carbon residue forming material.

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Masaki Yoshio, Nikolay Dimov, Takashi Iwao, Kenji Fukuda, Tatsuo Umeno, Department of Applied Chemistry, Saga University, Saga, Japan, Sep. 2001.

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