FIELD: electricity.
SUBSTANCE: each sealed housing (14) of the capacitor or supercapacitor comprises of a tubular element (16) and at least one cover (18) covering the tubular element at its end. There is a connecting strip (30) on the two covers (18) of the two adjacent bodies (14). The dimensions of the strip allow it to contact the cover (18) of each of the bodies. A rotating welding device (50) is engaged with the cover (18) and/or the strip (30). The said device is moved translationally along the axis running along the normal line to the cover (18), with its penetration into the material of the cover (18) and/or the strip (30). The strip (30) is welded to the cover (18) by friction stir welding forming at least one weld seam.
EFFECT: maintaining the tightness of each of the connected energy storage devices.
11 cl, 5 dwg
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