Manganese dioxide for alkaline cells

Details Manganese dioxide for alkaline cells Manganese dioxide for alkaline cells

2005-03-08

2005-03-08

Silverman, Stanley S. (Department: 1754)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C429S224000

Reexamination Certificate

active

06863876

ABSTRACT:
Particulate MnO2, having simultaneously a micropore surface area greater than 8.0 m2/g, desirably between about 8.0 and 13 m2/g and BET surface area of between about 20 and 31 m2/g within the context of an MnO2having a total intraparticle porosity of between about 0.035 cm3/g and 0.06 cm3/g produces enhanced performance when employed as cathode active material in an electrochemical cell, particularly an alkaline cell. The average pore radius of the meso and macro pores within the MnO2(meso-macro pore radius) is desirably greater than 32 Angstrom.

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