H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 4/28 (2006.01) H01M 4/36 (2006.01) H01M 4/58 (2006.01) H01M 4/90 (2006.01)
Patent
CA 2230948
The present invention relates to a process for producing electrode active material for an electrochemical generator, the said active material being composed of crystallized carbon particles capable of taking lithium into their structure, comprising at least the following steps: a solution is prepared, in a chemically inert volatile solvent, of at least one compound comprised of many molecules capable of creating a covalent bond with a oxygenated functional group which comprises at least one organometallic compound selected from a borane, a phosphate, an organophosphorus compound, an organotin, an organotungsten, an organotitanium and polymethyl hydroxysiloxane; the said particles are immersed in the said solution; the said solvent is eliminated to obtain the said dry particles.
La présente invention a pour objet un procédé de fabrication de la matière active d'électrode pour un générateur électrochimique, ladite matière active étant composée de particules de carbone cristallisé susceptibles d'insérer du lithium dans leur structure, comprenant au moins les étapes suivantes: - on prépare une solution, dans un solvant volatil chimiquement inerte, d'au moins un composé constitué de molécules volumineuses susceptibles de créer une liaison covalente avec un groupement fonctionnel oxygéné qui comprend au moins un composé organométallique choisi parmi un borane, un phosphate, un organo-phosphoré, un organo-étain, un organo-tungstène, un organo-titane et le polyméthylhydroxysiloxane, - on immerge lesdites particules dans ladite solution, - on élimine ledit solvant pour obtenir lesdites particules sèches.
Bernard Simon.
Biensan Philippe
Feyrin Sylvie
Galaj Stanislas
Alcatel
Alcatel Alsthom Compagnie Generale D'electricite
Robic
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