Alkaline electrochemical cell capable of providing optimum discharge efficiencies at a high tech drain rate and a low drain rate

An electrochemical cell, comprising:

• a cylindrical container housing a first electrode, a second electrode, an alkaline electrolyte, and a separator;
• said first electrode defines a tubular cavity therein and comprises manganese dioxide as an electrochemically active material, said first electrode's electrochemical capacity determined by multiplying the grams of manganese dioxide by 285 mAhr/g;
• said second electrode, disposed within said cavity, comprises zinc as an electrochemically active material, said second electrode's electrochemical capacity determined by multiplying the grams of zinc by 821 mAhr/g;
• said separator disposed at the interface between the first and second electrodes, wherein said cell is an LR6 size cell, the area of the interface is between 12.6 cm2 and 13.2 cm2 and the ratio of the second electrode's electrochemical capacity to the first electrode's electrochemical capacity is between 1.33:1 and 1.40:1, wherein said zinc consists of particulate zinc, wherein said particulate zinc has a tap density greater than 2.80 g/cc and less than 3.65 g/cc, said second electrode has a known volume, and said particulate zinc occupies less than 28.0 volume percent of said second electrode's volume.

An electrochemical cell, comprising:

• a container housing a first electrode, said electrode defining a cavity therein, said cavity created by utilizing a cylindrical tool to impact mold said first electrode comprising manganese dioxide into a tubular configuration, said tool having a circumference of at least 29.12 mm, said container having an outer diameter between 13.89 mm and 14.00 mm;
• a separator lining said cavity and contacting said first electrode;
• a second electrode comprising zinc powder and disposed within said separator lined cavity, said zinc powder having a tap density greater than 2.80 g/cc and less than 3.65 g/cc, a BET surface area greater than 400 cm2/g, a KOH absorption value of at least 14%, and a D50 less than 130 microns;
• and
• a quantity of alkaline electrolyte disposed within said container and in contact with said electrodes and said separator;
• wherein
• said cell is an LR6 size cell, said first electrode's electrochemical capacity is determined by multiplying the grams of manganese dioxide by 285 mAhr/g, said second electrode's electrochemical capacity is determined by multiplying the grams of zinc by 821 mAhr/g, the ratio of the second electrode's electrochemical capacity to the first electrochemical capacity is between 1.33:1 and 1.40:1, and the area of interface between the first and second electrodes is between 12.6 cm2 and 13.2 cm2.