Cathodic active material composition for dry cells, method for p

Details Cathodic active material composition for dry cells, method for p Cathodic active material composition for dry cells, method for p

1996-12-17

1999-08-17

Nuzzolillo, Maria

Metal working

Method of mechanical manufacture

Electrical device making

429224, 429232, H01M 426

Patent

active

059387980

ABSTRACT:
A cathodic active material comprises a mixture of graphite particles and electrolytic manganese dioxide particles which are composed of needle-like crystals having an aspect ratio ranging from about 2 to about 20 and an alkaline manganese dioxide cell is provided with a cathode prepared from the cathodic active material. The cathodic active material for dry cells can be prepared by mixing, in advance, carbon powder with manganese dioxide powder in a weight ratio ranging from about 1:100 to about 15:100 and then pulverizing the resulting mixture. The novel cathodic active material for dry cells permits substantial improvement of the resulting dry cell in the high load-discharge quality.

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