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Patent
H - Electricity
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Patent
CA 2126071
2126071 9312553 PCTABS00023 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.
Daniel-Ivad Josef
Flack Robert
Kordesch Karl
Battery Technologies Inc.
Mccarthy Tetrault Llp
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