Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent
1992-12-21
1994-01-25
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
429230, 429 57, H01M 448
Patent
active
052814971
ABSTRACT:
Low mercury or mercury free primary or secondary alkaline manganese dioxide-zinc cell that comprises a manganese dioxide cathode with a manganese dioxide active material and a conductive powder. The active material and powder are uniformly mixed and pressed to form a porous cathode body. The cell further comprises a gelled zinc anode, a separator between the cathode and the anode, and an alkaline electrolyte. The anode gel comprises a modified starch as a gelling agent capable of releasing hydrogen gases developed during slow corrosion of zinc in the anode.
A hydrogen recombination system can be used in the cell to limit inside pressure within permitted limits by recombining the evolved hydrogen.
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"Das (ubervundene) Quecksibberproblem der Primarzellentechinik" Dechema-Monographien Band 124, VCH Verlagsgesellschaft 1991, pp. 375-388.
Chemical Abstracts, vol. 104, No. 20, issued May 19, 1986, Columbus, Ohio, U.S.A., Teraoka Hirohito et al. "Mercury free alkaline batteries" p. 529, column 2, the abstract-No. 176 606g Jpn Kokai Tokkyo Koho JP 60,221,957.
Daniel-Ivad Josef
Flack Robert
Kordesch Karl
Battery Technologies Inc.
Hewson Donald E.
Skapars Anthony
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