Secondary battery, device for manufacturing secondary battery, and method of manufacturing secondary battery

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

• a support block configured to support an electrode assembly with a lead tab protruding from a side of the electrode assembly;
• a lower jig configured (i) to support a first section of a strip terminal connected to the lead tab and (ii) to move in a vertical direction that is a first direction along the side of the electrode assembly or in a front-rear direction with respect to the electrode assembly;
• an upper jig disposed above the lower jig and configured to press the first section of the strip terminal;
• and
• a bending roller configured to bend the second section connected to the first section of the strip terminal by moving up and down in the first direction along a rear side of the lower jig,
• wherein the bending roller is configured to be lowered so that an angle between the first section and the second section becomes 90 degrees or less.

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

• disposing an electrode assembly on a support block, the electrode assembly including a lead tab protruding from a side of the electrode assembly;
• disposing a first section of a strip terminal connected to the lead tab on a lower jig;
• lowering an upper jig to press and fix the first section;
• lowering a bending roller along a side of the lower jig to bend a second section of the strip terminal connected to the first section a first time;
• raising the lower jig and lowering the bending roller a second time along the side of the lower jig to bend the second section a second time;
• and
• moving the lower jig toward the electrode assembly to bend the lead tab.