Manganese dioxide cathode
AssigneeHer Majesty the Queen in right of Canada, as represented by the Minister of National Defence
InventorsJohn Ralph Coleman, Torstein Valand
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Abstract
Improved cathodes for use in acid Leclanche cells, particularly of the reserve type where sulphuric acid is added to activate the cell prior to use, are constructed using an anodized lead current collector which possesses advantages over other materials in being less bulky than carbon, cheaper than platinum and giving a steadier output voltage than un-anodized lead, while still being resistant to corrosion.
Claims5
In a reserve primary cell of the acid Leclanche type having a cathode and an amalgamated zinc anode mounted in a container and arranged to be activatable by the addition of sulfuric acid as electrolyte, the improvement which consists of said cathode being a lead current collector having thereon a layer of anodized lead and having a conductive compressed cathodic layer of manganese dioxide and carbon adhered to said anoidic layer.
Dependencies are inferred from the claim text.