NON-AQUEOUS ELECTROLYTIC SECONDARY CELL

摘要

A non-aqueous electrolytic secondary cell comprising a power generating element formed by laminating a positive electrode plate, a separating unit and a negative electrode plate together and spirally rolling them, an electrolyte being impregnated onto a separator used as the separating unit, wherein the power generating element is enclosed in a cell case formed of a resin laminate sheet using a metal layer as a barrier layer with a pair of lead terminals only led outside. The resin sheet has stretched resin layers laminated on the opposite sides of the metal layer and fusion-deposited with inner opposite fusion layers facing each other. A resin lump extending into a cell-inner-side space at least 0.1 mm from the inner end of the fusion-deposition portion is formed by melting and then solidifying or by thermocompression bonding so that the outer end is thinner than the inner end.