Sealed electrolytic cell with auxiliary electrode

Claim 1

A HERMETICALLY SEALED NICKEL-CADMIUM GALVANIC CELL CONTAINING ALTERNATE POSITIVE AND NEGATIVE PLATES SPACED APART AND ARRANGED PARALLEL TO EACH OTHER, AND SEPARATORS FILLING THE SPACES BETWEEN SAID PLATES, MEANS DEFINING A RESERVOIR CONTIGUOUS TO THE ENDS OF SAID PLATES AND SEPARATORS, ELECTROLYTE COMPLETELY FILLING SAID RESERVOIR AND SATURATING SAID SEPARATORS, AN AUXILIARY NEGATIVE ELECTRODE IN CONTACT WITH THE ELECTROLYTE IN SAID RESERVOIR, SAID AUXILIARY ELECTRODE BEING SPACED APART FROM THE POSITIVE PLATES IN SAID CELL AND FORMING SUBSTANTIALLY A PART OF SAID RESERVOIR-DEFINING MEANS, AND BEING ELECTRICALLY DIRECTLY CONNECTED IN PARALLEL WITH THE NEGATIVE PLATES THEREIN, AND BEING IN CONTACT WITH SAID ELECTROLYTE THROUGHOUT ITS EXPOSED SURFACE AREA, A FORAMINOUS AUXILIARY POSITIVE ELECTRODE WITHIN SAID RESEVOIR IN ELECTRICAL CONTACT WITH THE POSITIVE ELEMENTS OF SAID CELL AND INSULATED FROM THE NEGATIVE ELEMENTS THEREOF AND POSITIONED BETWEEN SAID AUXILIARY NEGATIVE ELECTRODE AND SAID PLATES AND SEPARATORS, SAID ELECTROLYTE FILLING THE ENTIRE FREE SPACE WITHIN SAID CELL.