SECONDARY BATTERY

A secondary battery includes an electrode assembly including a first electrode, a separator, and a second electrode, a case accommodating the electrode assembly, the case being electrically connected to the second electrode, a cap assembly sealing an opening of the case, the cap assembly being electrically connected to a first electrode tab of the first electrode, and an insulating sheet disposed between the cap assembly and the electrode assembly, wherein the first electrode tab is bent two or more times, the first electrode tab being coupled to the cap assembly.