| 摘要 |
A primary alkaline cell (10) comprising a casing (12), an annularly shaped cathode structure (14) comprising manganese dioxide in electrical contact with the inner casing wall; a separator lining the annular cavity of the cathode; an anode (16) comprising discrete zinc particles substantially filling the separator lined cavity; an alkaline electrolyte permeating said cathode, separator, and anode; and an anode current collector (20) comprising a foraminous metal inserted into said anode wherein said collector provides electrical continuity along substantially the entire axial portion of the cavity which contains the anode from a locus at or near the center axis of said anode cavity to a locus near the periphery of said anode cavity, wherein the anode current collector comprises a foraminous metal cylinder of a size and shape which fits within the anode and wherein said foraminous metal is uniformly distributed from the central axial portion of the cylinder outwardly to the cylinder outer wall. |
