METHOD OF JAR SEALING Russian patent published in 1995 - IPC

FIELD: production of chemical power sources. SUBSTANCE: placed into cell jar 1 is element of plates 2 with separators 5 between plates and current posts 4 brought out through lid 3 fixed on jar 1. Heated electrodes 7 are driven into zone contact of jar 1 and lid 3 to a depth equal to 1.0-1.2 of wall thickness of jar 1. Electrodes are held so to provide softening of material in welding zone, then they are brought out without separating lid 3 and jar 1 and melted surfaces are exposed to pressure. To increase strength of seam thickness of electrodes 7 should be equal to 0.3-0.5 of wall thickness of jar 1. EFFECT: enhanced reliability of sealing. 4 dwg