Abstract: A rechargeable battery may include a case that receives an electrode assembly, a cap plate that closes and seals an opening of the case, an electrode terminal that passes through the cap plate and is electrically connected to the electrode assembly, an insulator between the electrode terminal and the cap plate, the insulator electrically insulating the electrode terminal and the cap plate, and an electrification switch in the insulator. The electrification switch may electrically connect the electrode terminal to the cap plate according to manipulation of the electrification switch.

Abstract: A rechargeable battery includes: an electrode assembly configured to perform charging and discharging; a case enclosing the electrode assembly; a cap plate coupled to an opening of the case; an electrode terminal engaging a terminal hole of the cap plate; and an insulator between the cap plate and the electrode terminal, wherein the insulator comprises: a fluid receiving recess at a side of the electrode terminal to receive fluid, and an outlet extending through the insulator from the fluid receiving recess to discharge the received fluid.

Abstract: A rechargeable battery and a battery module. A rechargeable battery includes: a unit cell including an electrode assembly, a case containing the electrode assembly, a cap plate covering an opening of the case, and a terminal electrically connected to the electrode assembly and protruding through the cap plate; and a cover including an electrically insulating material and covering the cap plate, the cover having an opening exposing the terminal therethrough.

Abstract: A separator for a rechargeable lithium battery includes a backbone polymer, an ion conductive polymer coating the backbone polymer, and an electrolyte solution immersing the backbone polymer, wherein the backbone polymer and the ion conductive polymer are different from each other.

Abstract: A rechargeable battery including an electrode assembly including 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; and a connection member electrically connecting the electrode assembly and the terminal, and the connection member includes 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, 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.

Abstract: A rechargeable battery includes an electrode assembly including a positive electrode and a negative electrode, each of the positive and negative electrodes including a coated region and an uncoated region at an end of the coated region in a longitudinal direction of the electrode assembly, a case housing the electrode assembly, a terminal coupled to the electrode assembly, and a current collecting member electrically coupling the electrode assembly to the terminal, wherein the uncoated region is fixed to the current collecting member, and includes a portion that is substantially perpendicular to the longitudinal direction of the electrode assembly.

Abstract: Provided is a rechargeable battery capable of easily connecting a terminal and a cap plate to each other. The rechargeable battery includes; an electrode assembly having a positive electrode and a negative electrode; a case receiving the electrode assembly; a cap plate coupled with the case; first and second terminals electrically connected to the electrodes; and a connecting member electrically connecting the first terminal to the cap plate, in which the connecting member may have an elastically deformable structure.

Abstract: A rechargeable battery including an electrode assembly including a positive electrode, a negative electrode, and a separator therebetween; a case housing the electrode assembly; a cap plate sealing an opening of the case; and an electrode terminal installed in the cap plate, wherein the electrode terminal includes a first terminal section in a terminal hole of the cap plate, the first terminal being connected to the electrode assembly in the case and including a protruding portion that protrudes outwardly from the cap plate, the protruding portion having a receiving portion therein, a second terminal section in the receiving portion, the second terminal section protruding outwardly from the receiving portion, and a fastening member between an inner peripheral surface of the receiving portion and the second terminal section, the fastening member fastening the first terminal section and the second terminal section to each other.

Abstract: A rechargeable battery, and a module thereof, including a case accommodating an electrode assembly therein; a cap plate covering an opening of the case and having terminal holes; and electrode terminals installed in the terminal holes and electrically connected to the electrode assembly, the electrode terminals being protruded from lateral surfaces of the case adjacent the opening.

Abstract: A rechargeable battery including an electrode assembly; a case containing the electrode assembly; a cap plate covering an opening of the case; and an external insulating member on an outer surface of the case, the external insulating member including an insulating cover on the cap plate, and an insulating tape coupled to the insulating cover on the case.

Abstract: A battery may include an electrode assembly including a first electrode and a second electrode, an electrode terminal, a current collecting member electrically connecting the electrode terminal and a first electrode uncoated region of the first electrode, a fixing member, and a case. The current collecting member may include a terminal connecting portion coupled to the electrode terminal and an electrode connecting portion extending from the terminal connecting portion. The electrode connecting portion may include an extending connecting plate and a current collecting piece extending from the connecting plate and being in contact with the first electrode uncoated region along sidewalls of the first electrode uncoated region. The fixing member may include a current collecting member coupling portion engaged with the current collecting member, the electrode connecting portion extending through the fixing member. The fixing member may be between the current collecting member and the case.

Abstract: A rechargeable battery including an electrode assembly including a positive electrode and a negative electrode formed on both surfaces of a separator; a case accommodating the electrode assembly; a cap plate closing an opening of one side of the case; and an electrode terminal installed to the cap plate, wherein the electrode terminal includes a first terminal part installed to a terminal hole of the cap plate, connected to the electrode assembly inside the case, and protruding outside the cap plate thereby forming a first connection portion, a second terminal part forming a second connection portion coupled to the first connection portion in a first direction determined along a length of the electrode terminal and protruding from the first terminal part, and a fastener coupling the first connection portion and the second connection portion in a second direction intersecting the first direction.

Abstract: A battery includes a plurality of electrode assemblies arranged in a case, each electrode assembly including a first electrode, a second electrode and a separator between the first electrode and the second electrode, and an interior safety member including an interior plate between the electrode assemblies, the interior safety member being electrically connected to at least one of the plurality of electrode assemblies.

Abstract: A rechargeable battery including at least one electrode assembly, the at least one electrode assembly including a positive electrode and a negative electrode; a case accommodating the electrode assembly, the case having an installation surface; a terminal installed on the installation surface of the case; and a cap member coupled with the case.

Abstract: A rechargeable battery including an electrode assembly including 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; and a connection member electrically connecting the electrode assembly and the terminal, and the connection member includes 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, 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.

Abstract: A battery includes a plurality of electrode assemblies, each having an electrode and an electrode uncoated region, such that the plurality of electrode assemblies together present a plurality of electrodes and electrode uncoated regions, an electrode terminal, and a current collecting member electrically connecting the electrode terminal and the plurality of electrodes of the electrode assemblies, the current collecting member including a terminal connection portion, and side plates, extending from lateral sides of the terminal connection portion, a plurality of current collecting plates, each current collecting plate contacting the electrode uncoated region of a respective one of the plurality of electrode assemblies, a plurality of supporting portions, each supporting portion connecting certain adjacent ones of the current collecting plates together, each of the side plates being coupled with at least one of the current collecting plates.

Abstract: A rechargeable battery including an electrode assembly including a first electrode and a second electrode; a case having a space in which the electrode assembly is located; a cap plate coupled with the case; a terminal coupled to the electrode assembly through a current collecting tap, and protruding through the cap plate to an outside of the case; a first cover in which a lower portion of the terminal is located; and a second cover in which an upper portion of the current collecting tap is located, the second cover being coupled with the first cover to secure the terminal and the current collecting tap.

Abstract: An apparatus for detecting a failure of a battery includes a plurality of cell internal pressure sensors each provided in a corresponding one of a plurality of battery cells to measure internal pressure of the battery cells and generate and transmit pressure signals, a sensing unit for receiving the pressure signals to sense the internal pressure of the battery cells, a control logic unit for receiving the internal pressure data of each of the battery cells and determining a battery cell having cell internal pressure outside of a predetermined normal range of internal pressure of the battery cell as a failed cell, and a battery control unit for controlling charging or discharging of the other battery cells of the battery except for the failed cell while the failed cell is being repaired or replaced.

Abstract: A rechargeable battery including an electrode assembly including a positive electrode and a negative electrode; a case containing the electrode assembly; a cap plate covering an opening of the case; a terminal electrically connected to the electrode assembly; and a sealing member on the cap plate to seal between the terminal and the cap plate, the sealing member including a connection member arranged therein and electrically connecting the terminal and the cap plate.

Abstract: A rechargeable battery includes an electrode assembly charging and discharging a current, a case in which the electrode assembly is installed, a cap plate coupled to an opening of the case, an electrode terminal provided on the cap plate, and an external insulator receiving the electrode terminal from the outside of the cap plate. The electrode terminal includes a first plate terminal electrically connected to the electrode assembly, a second plate terminal separated from the first plate terminal, and a fuse portion connecting the first plate terminal and the second plate terminal.