Rechargeable battery including a terminal connecting member

A rechargeable battery, comprising:

• an electrode assembly, the electrode assembly including a positive electrode and a negative electrode;
• a case accommodating the electrode assembly;
• a terminal electrically connected to the electrode assembly, the terminal being exposed outside the case;
• a terminal connecting member extending outside of the case from an interior thereof, the terminal connecting member:
• electrically connecting the electrode assembly and the terminal, and
• including an electrolyte solution inlet therein;
• and
• a sealing cap coupled with an outer side of the terminal connecting member, the sealing cap covering the electrolyte solution inlet, wherein:
• the terminal connecting member includes a groove into which the sealing cap is inserted, the groove having a width greater than a width of the electrolyte solution inlet,
• the width of the groove at a widest point thereof is about the same as a width of an adjacent top end of the terminal connecting member such that the groove at the widest point thereof abuts an edge of the top end of the terminal connecting member and abuts an outer edge of the sealing cap,
• the edge of the top end of terminal connecting member, the terminal, and the outer edge of the sealing cap are adjacent to one another and are fixed by a single continuous weld, and
• the terminal has a plate shape.