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US 4,285,122 AGranted
Heat-treated, organic solvent-treated manganese dioxide
AssigneeUnion Carbide Corporation
InventorAkiya Kozawa
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Abstract
A homogeneous mass of particulate manganese dioxide which has been heat-treated to reduce its moisture content and treated with an organic solvent which substantially fills the pores of the manganese dioxide thereby reducing its affinity for absorbing moisture when exposed to a moisture environment for a fixed time period. The invention also relates to a process for producing the manganese dioxide.
Claims5
A method for assembling a nonaqueous cell employing a manganese dioxide-containing cathode comprising the steps:
- removing the moisture content from particulate manganese dioxide to less than 300 parts per million;
- (b) contacting the particulate manganese dioxide with at least one organic solvent such that the solvent substantially fills a majority of the pores of the manganese dioxide.
- (c) blending the solvent treated manganese dioxide with a conductive agent and a binder to form a manganese dioxide-containing cathode;
- and
- (d) assembling the solvent-treated manganese dioxide-containing cathode into a cell along with an anode and an electrolyte solution.
2 more elements
Dependencies are inferred from the claim text.