Additives for primary electrochemical cells having manganese dio

Details Additives for primary electrochemical cells having manganese dio Additives for primary electrochemical cells having manganese dio

1995-02-13

1996-05-14

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429218, H01M 450, H01M 456

Patent

active

055166040

ABSTRACT:
The invention relates to alkaline cells containing manganese dioxide cathode active material. A substance selected from the group of compounds Bi.sub.2 O.sub.3, PbO.sub.2, SnO.sub.2, Co.sub.3 O.sub.4, CoO, Bi.sub.2 O.sub.3.3ZrO.sub.3 and K.sub.2 Cr.sub.2 O.sub.7 is added to the cathode of conventional alkaline cells typically having an anode comprising zinc and cathode comprising manganese dioxide and an alkaline electrolyte. The additive increases the specific capacity (amp-hr/g) of the manganese dioxide in the cathode.

REFERENCES:
patent: 5156934 (1992-10-01), Kainthia et al.
patent: 5227261 (1993-07-01), Georgopoulos
patent: 5391365 (1995-02-01), Wang et al.

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