Flat type battery and method of manufacture thereof

Claim 1

THAT IMPROVEMENT IN THE PROCESS OF PREPARING A BATTERY BLOCK COMPRISING N PILED FLAT CELLS INCLUDING PROVIDING N+1 TRAYS OF THERMOPLASTIC MATERIAL EACH HAVING A DEPTH IN EXCESS OF THE DEPTH OF A COMPLETED CELL AND A BOTTOM OPENILNG AND EACH BEING PROVIDED INTERIORLY AT ITS BOTTOM WITH AN ANODE PLATE OVERLYING THE BOTTOM OPENING, AND EXTERIORLY ON ITS BOTTOM WITH A CONDUCTIVE COATING PLATE UNITED BOTH TO THE BOTTOM AND TO THE ANODE PLATE APPEARING IN THE OPENING, LOADING A FIRST OF SAID TRAYS WITH AN ELECTROLYTE CARRYING SEPARATOR AND A MIX CAKE AS COMPONENTS OF THE FIRST OF SAID CELLS, NESTING A SECOND OF SAID TRAYS IN THE FIRST SO THAT UPPER WALL PORTIONS OF THE FIRST TRAY LAP ONLY THE LOWER WALL PORTIONS OF THE SECOND TRAY AND SO THAT THE CONDUCTIVE COATING PLATE OF THE SECOND TRAY IS IN SURFACE CONTACT WITH THE MIX CAKE IN THE FIRST TRAY, APPLYING A PREDETERMINED AMOUNT OF COMPRESSION TO THE CELL COMPONENTS BETWEEN THE TWO TRAYS AND SIMULTANEOUSLY PROVIDING INTERNAL SUPPORT FOR THE LAPPED PORTIONS AND EXTERNALLY APPLIED, LATERAL PRESSURE WITH HEAT TO SAID LAPPED PORTIONS AGAINST SAID SUPPORT FOR UNITING SAID LAPPED PORTIONS OF THE TWO TRAYS PERMANENTLY TO COMPLETE THE FIRST OF THE CELLS, THEREAFTER SUCCESSIVELY AND INDEPENDENTLY REPEATING THE LOADING, NESTING, COMPRESSION AND UNION TO COMPLETE EACH OF THE SUCCEEDING CELLS UNTIL N PILED CELLS HAVE BEEN PREPARED WITH THE N+1 TRAYS, ALL OF THE SUCCESSIVE COMPRESSIONS UTILIZING LIKE PRESSURE AND EACH UNION SERVING INDEPENDENTLY TO UNITE THE UPPERMOST OF THE PILED TRAYS TO THE NEXT PRECEDING TRAY OF THE ALREADY UNITED TRAYS OF PRECEDING CELLS SO THAT WHEN N CELLS ARE COMPLETED A UNITARY OVERALL COVERING FOR ALL THE CELLS IS DEFINED BY THE UNITED WALL PORTIONS OF THE N+1 INDIVIDUAL TRAYS, AND THE COMPONENTS OF EACH INDIVIDUAL CELL ARE MAINTAINED IN REQUIRED CONTACT WITH EACH OTHER AND THOSE OF ADJACENT CELLS AT SUBSTANTIALLY IDENTICAL PRESSURES.