NOVELTY - The battery has a rectangular or hexahedral case (21) accommodating an electrode assembly. A plate-shaped terminal (41) is electrically connected to the electrode assembly, where the terminal is exposed outside the case. A terminal connecting member (54) extends outside the case from an interior of the terminal connecting member. The connecting member electrically connects the electrode assembly and the terminal and includes an electrolyte solution inlet. A sealing cap (52) is coupled with the connecting member, where the sealing cap covers the solution inlet.    USE - Cylindrical/prismatic shaped rechargeable battery e.g. low-capacity rechargeable battery and high-capacity rechargeable battery, for use as a power supply for a small electronic device e.g. cellular phone, notebook computer, and camcorder and for driving motor in hybrid vehicle and electric vehicle.    ADVANTAGE - The terminal is electrically connected to the terminal connecting member through a single welding process, and a sealing cap is coupled with the terminal connecting member so as to reduce or prevent leakage of electrolyte solution. The battery separates welded part from a space in which the electrolyte solution moves to prevent damage to weld. The battery is simplified by fixing the terminal, the sealing cap, and the terminal connecting member by a single welding process, so that productivity of the battery is improved. The electrolyte solution inlet is not installed in a cap plate, so that warping of the cap plate is prevented. The electrolyte solution inlet is not formed on the terminal and formed on the terminal connecting member, thus preventing contamination of the terminal by the electrolyte solution while the electrolyte solution is injected.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a rechargeable battery.    Rectangular or hexahedral shaped case (21)    Cap plate (31)    Vent member (39)    Plate-shaped terminals (41, 42)    Sealing cap (52)    Terminal connecting member (54)