Abstract: A battery includes a case accommodating an electrode assembly, the case including an opening at one end and including at least one sidewall, the sidewall having a coupling portion adjacent to the opening, a cap plate that closes the opening, the cap plate having an upper surface, the coupling portion of the sidewall connecting the cap plate to the case, the coupling portion including a top surface of the sidewall, the cap plate overlying a first portion of the top surface of the sidewall, such that the upper surface of the cap plate is entirely above top surface of the sidewall, and a welding bead contacting the cap plate and a second portion of the top surface of the sidewall, the second portion of the top surface being between the first portion and an outer surface of the sidewall.

Abstract: A rechargeable battery including an electrode assembly performing charging and discharging; a case accommodating the electrode assembly; a cap plate coupled with the case; an electrode terminal in a terminal hole of the cap plate, the electrode terminal being electrically connected to the electrode assembly; and an insulator electrically insulating the electrode terminal and the cap plate, wherein the insulator includes a first member between an outside of the cap plate and a surface of the electrode terminal facing the cap plate, and a second member enclosing an outer surface of the electrode terminal and the first member and being coupled with the first member with a step structure.

Abstract: A rechargeable battery includes an electrode assembly including a first electrode, a second electrode, and a separator provided between the first electrode and the second electrode; a first current collecting plate electrically connected to the first electrode; a second current collecting plate electrically connected to the second electrode; and a case for receiving the electrode assembly, the first current collecting plate, and the second current collecting plate, wherein the first current collecting plate is electrically connected to an inner wall of the case.

Abstract: A rechargeable battery includes an electrode assembly including a first electrode, a second electrode, and a separator provided between the first electrode and the second electrode; a first current collecting plate electrically connected to the first electrode; a second current collecting plate electrically connected to the second electrode; and a case for receiving the electrode assembly, the first current collecting plate, and the second current collecting plate, wherein the first current collecting plate is electrically connected to an inner wall of the case.

Abstract: A rechargeable battery may include an electrode assembly that performs a charge and discharge action, a case in which the electrode assembly is inserted, a cap plate coupled to an opening of the case, and an electrode terminal in a terminal hole of the cap plate. The electrode terminal may include a plate terminal outside the cap plate and corresponding to the terminal hole, the plate terminal including a through-hole, a first groove, and a second groove, and a rivet terminal, the rivet terminal passing through the terminal hole, being inserted in the through-hole, and being riveted to the plate terminal at an upper end of the rivet terminal. The first groove may extend from the through-hole at an upper end side of the rivet terminal, and the second groove may extend from the first groove to an outer side of the plate terminal.

Abstract: A battery module including a plurality of rechargeable batteries each having terminals; and a connection member electrically connecting terminals of neighboring ones of the rechargeable batteries, wherein the connection member includes a terminal hole into which one of the terminals is inserted, and a mounting portion that protrudes inwardly at the terminal hole, and wherein each terminal includes a support portion contacting the mounting portion and supporting the mounting portion.

Abstract: A battery includes a case accommodating an electrode assembly, the case including an opening at one end and including at least one sidewall, the sidewall having a coupling portion adjacent to the opening, a cap plate that closes the opening, the cap plate having an upper surface, the coupling portion of the sidewall connecting the cap plate to the case, the coupling portion including a top surface of the sidewall, the cap plate overlying a first portion of the top surface of the sidewall, such that the upper surface of the cap plate is entirely above top surface of the sidewall, and a welding bead contacting the cap plate and a second portion of the top surface of the sidewall, the second portion of the top surface being between the first portion and an outer surface of the sidewall.

Abstract: A rechargeable battery may include an electrode assembly that performs a charge and discharge action, a case in which the electrode assembly is inserted, a cap plate coupled to an opening of the case, and an electrode terminal in a terminal hole of the cap plate. The electrode terminal may include a plate terminal outside the cap plate and corresponding to the terminal hole, the plate terminal including a through-hole, a first groove, and a second groove, and a rivet terminal, the rivet terminal passing through the terminal hole, being inserted in the through-hole, and being riveted to the plate terminal at an upper end of the rivet terminal. The first groove may extend from the through-hole at an upper end side of the rivet terminal, and the second groove may extend from the first groove to an outer side of the plate terminal.

Abstract: A battery module including a plurality of rechargeable batteries each having terminals; and a connection member electrically connecting terminals of neighboring ones of the rechargeable batteries, wherein the connection member includes a terminal hole into which one of the terminals is inserted, and a mounting portion that protrudes inwardly at the terminal hole, and wherein each terminal includes a support portion contacting the mounting portion and supporting the mounting portion.

Abstract: A rechargeable battery including an electrode assembly performing charging and discharging; a case accommodating the electrode assembly; a cap plate coupled with the case; an electrode terminal in a terminal hole of the cap plate, the electrode terminal being electrically connected to the electrode assembly; and an insulator electrically insulating the electrode terminal and the cap plate, wherein the insulator includes a first member between an outside of the cap plate and a surface of the electrode terminal facing the cap plate, and a second member enclosing an outer surface of the electrode terminal and the first member and being coupled with the first member with a step structure.

Abstract: A rechargeable battery includes an electrode assembly including a first electrode, a second electrode, and a separator provided between the first electrode and the second electrode; a first current collecting plate electrically connected to the first electrode; a second current collecting plate electrically connected to the second electrode; and a case for receiving the electrode assembly, the first current collecting plate, and the second current collecting plate, wherein the first current collecting plate is electrically connected to an inner wall of the case.