Carbon for lithium secondary battery, process for the...

H - Electricity – 01 – M

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H01M 4/58 (2006.01) H01M 4/62 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2197858

An excellent lithium secondary battery exhibiting a high total discharge capacity, a high effective discharge capacity, a high total discharge efficiency and a high effective discharge rate can be produced by using, as the carbon electrode, carbon for lithium secondary battery which is produced by subjecting a dry-distilled coal either to halogenation, dehalogenation and porosity control successively or to pulverization, molding and carbonization successively.

Cette invention concerne une batterie auxiliaire au lithium d'une grande qualité, présentant une capacité de décharge totale élevée, une capacité de décharge effective élevée, une haute efficacité de décharge totale ainsi qu'une fréquence élevée de décharge effective. Cette batterie peut être produite à l'aide d'une électrode au carbone, de carbone pour batterie auxiliaire au lithium, que l'on obtient en soumettant un charbon distillé à sec soit à des étapes successive d'halogénation, de déhalogénation et de régulation de la porosité, soit à des étapes successives de pulvérisation, de moulage et de carbonisation.

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