C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
C09C 3/00 (2006.01) H01M 4/133 (2010.01) H01M 4/1393 (2010.01) H01M 10/058 (2010.01) C01B 31/02 (2006.01) C01B 31/04 (2006.01) C09C 1/44 (2006.01) C10C 3/02 (2006.01) C10C 3/14 (2006.01)
Patent
CA 2471015
A process for the production of coated carbonaceous particles including: providing a carbon residue forming material; providing particles of a carbonaceous material; mixing the carbon residue forming material and the particles of a carbonaceous material at an elevated temperature; depositing a coating of the carbon residue forming material onto the surface of the particles; and stabilizing the coated particles by subjecting the particles to an oxidation reaction. These coated carbonaceous particles are particularly useful in the manufacture of electrodes in electrical storage cells, particularly in rechargeable electrical storage cells.
Cette invention concerne un procédé de fabrication de particules carbonées enduites consistant à : prendre un matériau formant un résidu de carbone; prendre des particules de matériau carboné; mélanger sous haute température le matériau formant un résidu de carbone et les particules de matériau carboné; déposer une couche du matériau formant un résidu de carbone sur la surface des particules; et stabiliser les particules en les soumettant à une réaction d'oxydation. Ces particules carbonées enduites conviennent particulièrement bien pour la fabrication d'électrodes dans les éléments accumulateurs d'électricité, en particulier dans les éléments de type rechargeable.
Carel Mark W.
Mao Zhenhua
Romine H. Ernest
Conocophillips Company
Oyen Wiggs Green & Mutala Llp
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