Flat cell pack battery having a cushioning means

Claim 1

THE IMPROVED FLAT CELL PACK BATTERY WHICH COMPRISES IN ASSEMBLY AN ARRAY OF PLATES DISPOSED IN PARALLEL JUXTAPOSED SPACED APART RELATION AND CONSISTING OF AN UPPERMOST PLATE, A LOWEST PLATE AND AT LEAST ONE INTERMEDIATE PLATE; SAID UPPERMOST PLATE BEING A CATHODE COLLECTOR PLATE FORMED OF AN ELECTRICALLY CONDUCTIVE MATERIAL; SAID INTERMEDIATE AND LOWEST PLATES BEING ANODES FORMED OF MAGNESIUM METAL; EACH SAID PLATE HAVING AN UPPER AND A LOWER SURFACE; EACH SAID PLATE EXCEPT THE LOWEST HAVING A MOISTURE-IMPERVIOUS, CONDUCTIVE, CARBONACEOUS COATING BONDED TO THE ENTIRE LOWER SURFACE THEREOF; A CATHODE-DEPOLARIZER MIX CAKE DISPOSED BETWEEN EACH METAL PLATE IN THE ARRAY; EACH SAID MIX CAKE BEING SURROUNDED BY A POROUS ENVELOPE ON ALL SIDES EXCEPT THE SIDE CONTRACTING THE IMMEDIATELY ADJACENT CONDUCTIVE COATED METAL PLATE, EACH SAID ENVELOPE AND MIX CAKE BEING MOISTENED WITH AN AQUEOUS ELECTROLYTE; A SHEET OF BIBULOUS MATERIAL OVERLYING THE UPPER SURFACE OF SAID COLLECTOR PLATE AND BEING SUBSTANTIALLY COEXTENSIVE THEREWITH; CUSHIONING MEANS AT LEAST 1/8-INCH THICK AND HAVING SUBSTANTIALLY THE LENGTH AND WIDTH OF SAID CATHODE COLLECTOR PLATE SUPERPOSED ON SAID SHEET OF BIBULOUS MATERIAL; FLEXIBLE GAS DIRECTING MEANS SEALINGLY ATTACHED TO THE CONDUCTIVE COATED SIDE OF EACH METAL PLATE ADJACENT EACH EDGE OF SUCH PLATE, EACH SAID GAS DIRECTING MEANS HAVING THE FORM OF A MOISTURE IMPERVIOUS PLASTIC FILM OR LARGER DIMENSIONS THAN THE METAL PLATE TO WHICH THE FILM IS ATTACHED AND HAVING AN OPENING FORMED THERETHROUGH SMALLER THAN SAID METAL PLATE, EACH CATHODE-DEPOLARIZER MIX CAKE BEING PERMITTED TO CONTACT THE ADJACENT CONDUCTIVE COATED SURFACE OF A METAL PLATE, THE EDGE PORTIONS OF EACH SAID PLASTIC FILM BENG FOLDED UPWARDLY AROUND THE EDGES OF THE METAL PLATE TO WHICH SAID FILM IS ATTCHED AND SAID EDGE PORTIONS EXTENDING UPWARDLY AT LEAST PAST THE NEXT ADJACENT SPACED APART METAL PLATE, THE EDGES OF THE PLASTIC FILMS OF SAID CATHODE COLLECTOR PLATE AND OF THE NEXT ADJACENT ANODE BEING TUCKED IN BETWEEN SAID SHEET OF OF BIBULOUS MATERIAL AND THE CATHODE COLLECTOR PLATE; ADDITIONAL GAS DIRECTING MEANS IN THE FORM OF A MOISTURE IMPERVIOUS PLASTIC FILM COEXTENSIVE WITH AND SURROUNDING THE TOP OF SAID ASSEMBLY, SAID ADDITIONAL GAS DIRECTING MEANS OUTWARDLY OVERLAPPING IN AN OPPOSITE DIRECTION THE GAS DIRECTING MEANS ATTACHED TO SAID LOWEST PLATE; A SUBSTANTIALLY WATER AND GAS IMPERVIOUS ENVELOPE COMPLETELY ENCLOSING SAID ASSEMBLY; A STRANDED ELECTRICAL LEAD SURROUNDED BY A GAS-IMPERVIOUS ELECTRICALLY INSULATING EVELOPE CONDUCTIVELY ATTACHED TO SAID CATHODE COLLCTOR PLATE, SAID STANDED ELECTRICAL LEAD EXTENDING THROUGH AN OPENING IN SAID SHEET OF BIBULOUS MATERIAL AND FURTHER BEING DISPOSED BETWEEN SAID SHEET OF BIBULOUS MATERIAL AND SAID CUSHIONING MEANS AND EXTENDING THROUGH SAID ENCLOSING WATER AND GAS IMPERVIOUS ENVELOPE TO THE OUTSIDE OF THE BATTERY, SAID LEAD BEING THE POSITIVE TERMINAL AND A GAS VENT; AND A SECOND ELECTRICAL LEAD CONDUCTIVELY ATTACHED TO THE LOWER SURFACE OF SAID LOWEST PLATE AND BEING SUBSTANTIALLY DISPOSED BETWEEN SAID LOWEST PLATE AND THE ENCLOSING WATER AND GAS IMPERVIOUS ENVELOPE AND EXTENDING THERETHROUGH SAID ENVELOPE TO THE OUTSIDE OF THE BATTERY, SAID SECOND LEAD BEING THE NEGATIVE TERMINAL.