Thin walled electrochemical cell

Details Thin walled electrochemical cell Thin walled electrochemical cell

1996-10-07

1998-09-08

Valentine, Donald R.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429162, 429171, 429206, 429223, H01M 400, H01M 612, H01M 202, H01M 432

Patent

active

058043276

ABSTRACT:
This invention pertains to alkaline electrochemical cells, typically to metal-air cells of the button-type. Non-reactive elements of cells of the invention are thinner than corresponding non-reactive elements of prior art cells. Such elements can be made thinner because of improved structures of such elements. The anode can is made from a metal strip structure having a higher steel content. The cathode can has a modified temper, which improves relative stiffness and rigidity while retaining sufficient ductility. By so reducing the thicknesses of non-reactive elements of the cell, and thus the volume occupied by such non-reactive elements, the fraction of the cell devoted to holding electrochemically reactive anode material therein is increased, with corresponding increase in the milliampere hour capacity of the cell.

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