Patent ID: 8808904

Claim:
A secondary battery comprising: a bare cell having a first electrode and a second electrode; a protective circuit module comprising a protective circuit for the bare cell; a conductive bonding layer on the protective circuit module; a secondary protective element assembly comprising a connecting plate connected to the protective circuit module by the conductive bonding layer; a first lead plate electrically connecting the secondary protective element assembly to the first electrode; and a second lead plate electrically connecting the second electrode to the protective circuit module; wherein the connecting plate comprises a first connecting portion in contact with the conductive bonding layer, a coupling portion extending from the first connecting portion, and a second connecting portion substantially parallel to the first connecting portion, wherein the first connecting portion comprises at least one through hole allowing a portion of the conductive bonding layer to penetrate therethrough and form at least one reinforcement protrusion on a side of the first connecting portion opposite the protective circuit module.