Patent ID: 8642197

Claim:
A rechargeable battery comprising: an electrode assembly comprising a positive electrode and a negative electrode; a case containing the electrode assembly; a terminal electrically connected to the electrode assembly; a current collecting member fixed to the electrode assembly; a connection member electrically connecting the electrode assembly and the terminal; and a lower insulation member into which a lower portion of the terminal and an upper portion of the current collecting member are inserted, wherein the connection member comprises a first end fixed to one of the current collecting member or the terminal, a second end spaced apart from the first end and contacting the other of the current collecting member or the terminal in a free end state over a fuse groove formed on an upper surface of the lower insulation member, and a fuse portion between the first end and the second end, the fuse portion having a smaller cross-sectional area than a surrounding portion of the connection member, and wherein the lower insulation member is between the fuse portion and the electrode assembly.