CASE FOR SECONDARY BATTERY, SECONDARY BATTERY INCLUDING CASE, AND METHOD FOR MANUFACTURING SECONDARY BATTERY

The present disclosure provides a case for a secondary battery, a secondary battery including the case, and a method for manufacturing the secondary battery. A secondary battery may include an electrode assembly including a first electrode, a second electrode, and a separator positioned between the first electrode and the second electrode, a case accommodating the electrode assembly, the case including a bottom part and a side part, a cap assembly electrically coupled to the electrode assembly, the cap assembly sealing the case, and a first electrode tab coupled to the first electrode. The bottom part may include a first region. The first region may be coupled with the first electrode tab. The first region may include a plurality of grooves.