CURRENT SUPPLY PART FOR ELECTROCHEMICAL CELL BATTERY

PURPOSE: To work battery even when a high ambient pressure is applied by welding a metallic plate in a closed loop shape between both contact thin plates of contact bodies, and by providing an elastmer frame in an edge part of a metallic plate having a metal tongue piece projecting outwardly. CONSTITUTION: A part item 6 is provided with a metallic plate 7, two contact thin plates 8 and 9, and an elastmer frame 10 to be pressure welded around the metallic plate 7. The contact thin plates 8 and 9 are welded to the metallic plate 7, in particular, which is radially provided with a metal tongue piece 11 guided outwardly for the purpose of external current supply. Both a chamber 12 between the metallic plate 7 and the contact thin plate 8, and a chamber 13 between the metallic plate 7 and the contact thin plate 9 are used for receiving a pressure-producing fluid. The metallic plate 7 is weldded in a closed loop shape between the contact thin plates 8 and 9, and the contact thin plates is at most 0.2mm in thickness to thereby exhibit flexibility, and it is composed of, for example, nickel. In this way, working s possible even under high pressures.