Hermetically-sealed storage battery

Claim 1

A STORAGE CELL OF THE HERMETICALLY SEALED ALKALINE TYPE COMPRISING IN COMBINATION IN A CASING AT LEAST ONE POROUS NEGATIVE ELECTRODE, AT LEAST ONE POROUS POSITIVE ELECTRODE AND AT LEAST ONE POROUS SEPARATOR SITUATED BETWEEN AND CONTACTING SAID ELECTRODES, AN ALKALINE ELECTROLYTE SUBSTANTIALLY HELD IN THE PORES OF THE SEPARATOR AND THE ELECTRODES BY CAPILLARY ACTION, AT LEAST ONE OF SAID NEGATIVE ELECTRODES HAVING ITS REAR FACE SPACED FROM A WALL OF THE CASING, AND SPACER MEANS BETWEEN SAID REAR FACE AND SAID WALL FORMING A FREE GAS SPACE BETWEEN SAID REAR FACE AND SAID WALL, SAID REAR FACE BEING IN CONTACT WITH THE OXYGEN GENERATED IN THE CELL, FOR REMOVING SAID OXYGEN, THE POROUS SEPARATOR HAVING VERY FINE PORES AND BEING SATURATED WITH LIQUID ELECTROLYTE SO THAT FREE GASES, GENERATED AT THE SURFACES OF THE ELECTRODES, ARE NOT ABLE SUBSTANTIALLY TO PENETRATE THE SEPARATOR.