SEALING STRUCTURE AND PRODUCTION METHOD THEREFOR

摘要

This sealing structure includes: a first sealing member having a first surface; a second sealing member having a second surface facing the first surface; and one or more electrochemical elements sealed by the first sealing member and the second sealing member. A fused portion is formed around the one or more electrochemical elements. The fused portion is in a polygonal, circular or elliptical shape. The polygonal shape includes at least one of R-shape, C-shape, and V-shape with an obtuse angle.