Sealed power storage device

A sealed power storage device, comprising:

• an electrode body;
• an electrolytic solution;
• a device case accommodating the electrode body and the electrolytic solution;
• and
• a metal terminal member connected to the electrode body and extended from inside to outside of the device case,
• wherein the device case includes:
• a case body having an opening;
• and
• a lid closing the opening of the case body,
• the lid is a resin lid made of a resin having electrical insulation,
• the metal terminal member is extended from inside to outside of the device case to penetrate through the resin lid,
• the resin lid is hermetically integrated with the metal terminal member in a form of directly joining to an outer peripheral surface of the metal terminal member without interposing another member between the resin lid and the metal terminal member,
• the outer peripheral surface of the metal terminal member includes an annular roughened surface having pits and protrusions and extending to make a circuit of a periphery of the metal terminal member, and
• the resin lid is hermetically joined to the annular roughened surface by a part of the resin that forms the resin lid, the part of the resin entering into the pits of the annular roughened surface of the metal terminal member.