NOVELTY - The battery has electrode assembly with positive electrode substrate exposed portion (14) and negative electrode substrate exposed portions connected to collector element (16). One of the exposed portion or both is split into two groups, and intermediate element made of resin is arranged between divided groups for holding connective conductive elements. Collector element for exposed portion is arranged on outermost faces of two split groups of exposed portions and electrically joined to split groups by resistance welding method, together with conductive elements.    USE - Prismatic sealed secondary battery such as lithium ion secondary battery for electric vehicle and hybrid electric vehicle.    ADVANTAGE - Enhanced resistance of the welds can be realized, and variation in the welding strength is curbed.Since the conductive elements are held by the intermediate element made of resin material, the precision of the dimensions among the conductive elements can be improved.Since intermediate element is provided with holes and/or cutouts, gas generated in the electrode assembly interior can be easily expelled to the exterior of the electrode assembly, and since the pressure-reduction type current interruption mechanism, gas exhaust valve, etc., are activated stably, safety can be secured. The volume of the intermediate element is reduced, so that lighter battery is obtained. Positioning error and tilting of the intermediate element relative to the electrode assembly is prevented, so that the reliability of the electrode assembly welding and the product yield can be improved. Manufacturing equipment can be simplified by fitting the intermediate element and positioning jig or arm. Physical properties of the welds are stabilized and quality of the welds is improved.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for method for manufacturing sealed battery.    DESCRIPTION OF DRAWING(S) - The drawing shows a side view explaining the post-welding disposition of positive electrode connecting conductive portion.    Sealing plate (13)    Positive electrode substrate exposed portion (14)    Collector element (16)    Positive electrode terminal (17)    Insulating element (20)