Secondary battery, case for secondary battery and method for manufacturing secondary battery

A secondary battery comprising:

• an electrode assembly comprising a first electrode, a separator, and a second electrode;
• a body comprising one end with an opening, and an accommodating space accommodating the electrode assembly;
• and
• a cover coupled to the one end with the opening to seal the accommodating space, the cover being recessed from the opening toward the accommodating space,
• wherein an outer end of the cover is coupled to an inner end of the body.

A method for manufacturing a secondary battery, the method comprising:

• preparing an opening at one end of a body of a case, and an accommodating space for accommodating an electrode assembly in the body;
• inserting the electrode assembly into the accommodating space;
• arranging a cover recessed toward the accommodating space in the opening;
• pressing the cover to be in contact with the electrode assembly;
• and
• coupling an outer end of the cover to an inner end of the body.