Alkaline manganese battery

Details Alkaline manganese battery Alkaline manganese battery

H - Electricity

01

M

H01M 4/24 (2006.01) H01M 4/62 (2006.01)

Patent

CA 2145564

An alkaline battery having excellent discharge characteristics and higher discharge capacity with an increase in its internal resistance being suppressed is disclosed. The alkaline battery has a positive electrode active material which comprises primarily manganese dioxide and electroconductive carbon material. The electroconductive carbon material comprises expanded graphite particles having an average particle size in the range from 0.5 to 15 µm, and the content of the expanded graphite particles is in the range from 2 to 8 % by weight based on the solids in the positive electrode active material.

Une pile alcaline ayant d'excellentes caractéristiques de décharge et une plus grande capacité de décharge, l'augmentation dans sa résistance interne étant supprimée. La pile alcaline a une matière active à électrode positive qui est composée principalement de bioxyde de manganèse et de matière carbonée électro-conductrice. La matière carbonée électro-conductrice est composée de particules de graphite expansé dont la taille moyenne varie de 0,5 à 15 µm, et le contenu des particules de graphite expansé varie de 2 à 8 % du poids des solides dans la matière active à électrode positive.

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