Composite electrode material

H - Electricity – 01 – M

Patent

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Details

H01M 4/36 (2006.01) C01B 13/00 (2006.01) C01B 31/00 (2006.01) C01B 31/02 (2006.01) C25B 11/04 (2006.01) H01M 4/60 (2006.01)

Patent

CA 2731678

The invention relates to a composite material comprising carbon fibers and complex oxide par-ticles, wherein the carbon fibers and the complex oxide particles have a carbon coating on at least part of their surface, said carbon coating be-ing a non powdery coating The mate-rial is prepared by a method compris-ing mixing a complex oxide or pre-cursors thereof, an organic carbon precursor and carbon fibers, and sub-jecting the mixture to a heat treatment in an inert or reducing atmosphere for the decomposition of the precursors The material is useful as the cathode material in a battery

L'invention porte sur un matériau composite comprenant des fibres de carbone et des particules d'oxyde complexe, les fibres de carbone et les particules d'oxyde complexe ayant un revêtement de carbone sur au moins une partie de leur surface, ledit revêtement de carbone étant un revêtement non pulvérulent. Le matériau est préparé par un procédé comprenant le mélange d'un oxyde complexe ou de précurseurs de celui-ci, d'un précurseur de carbone organique et de fibres de carbone, et la soumission du mélange à un traitement thermique dans une atmosphère inerte ou réductrice pour la décomposition des précurseurs. Le matériau est utile en tant que matériau de cathode dans une batterie.

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