Abstract: A rechargeable battery includes a case having an interior and an exterior, an electrode assembly having a first electrode and a second electrode, the electrode assembly being disposed in the interior of the case, an electrode terminal, an electrode connection portion, the electrode connection portion being electrically connected to the electrode terminal through a fuse portion, the fuse portion being positioned between and extending between the electrode connection portion and the electrode terminal.

Abstract: A rechargeable battery module includes a plurality of unit cells adjacent to each other, each unit cell including a rechargeable battery with a first electrode terminal, a second electrode terminal, and a case electrically connected to the first electrode terminal, and a conductive member electrically connected to a second electrode terminal of one of the unit cells of the plurality of unit cells, the conductive member including first conductive plates at outermost sides of the unit cells and a plurality of second conductive plates between the unit cells.

Abstract: A rechargeable battery includes an electrode assembly including first and second electrodes; a case accommodating the electrode assembly; a cap plate coupled to the case and having a short-circuit opening formed therein; a first electrode terminal electrically connected to the first electrode; a second electrode terminal electrically connected to the second electrode; a short-circuit member fixed to the cap plate in the short-circuit opening and configured to electrically connect the first electrode and the second electrode to each other; and a top insulation member covering the short-circuit member and having a plurality of air holes formed therein.

Abstract: A rechargeable battery module includes unit battery cells and a bus bar connecting the unit battery cells in parallel. Each unit battery cell includes a cap plate, a case that accommodates an electrode assembly, lead tabs connected to the electrode assembly, one of the lead tabs including a cell fuse, first and second electrode terminals that penetrate the cap plate and are connected to the lead tabs, and an external short-circuit part including a membrane that seals a short-circuit hole of the cap plate and that is electrically connected to the second electrode terminal and a connection plate that is electrically connected to the first electrode terminal. The bus bar includes two current paths that connect neighboring second electrode terminals through different resistances, one of the two current paths including an external fuse. A resistance of the external fuse is greater than a resistance of the cell fuse.

Abstract: A battery module of the present invention includes a plurality of rechargeable batteries, each rechargeable battery having a first terminal and a second terminal, a bus bar having a first connection member and a second connection member, the first connection member being coupled to the bus bar via a serial connection member and a short-circuit connection member, and the second connection member being coupled to the bus bar via a fuse portion, and a short-circuit member connected to the first connection member through a serial connection member and connected to the second connection member through a fuse portion. The short-circuit member may be configured to be deformed by increased internal pressure in the respective rechargeable battery to couple to the short-circuit connection member.

Abstract: A secondary battery including an electrode assembly, the electrode assembly including a first electrode plate, a separator, and a second electrode plate; a case, the case accommodating the electrode assembly; a first current collector and a second current collector electrically connected to the first electrode plate and the second electrode plate of the electrode assembly, respectively; and a short inducing member disposed between the first current collector and the second current collector, the short inducing member being configured to electrically short-circuit the first current collector and the second current collector when a shape of the case is changed.

Abstract: A rechargeable battery includes an electrode assembly; a case accommodating the electrode assembly therein; a cap plate configured to close and seal an opening of the case; first and second electrode terminals extending through the cap plate and electrically coupled to the electrode assembly; and an external short-circuiter configured to electrically isolate or short-circuit the cap plate and the first terminal from or to each other, the cap plate being electrically coupled to the second electrode terminal. The external short-circuiter includes a membrane configured to close and seal a short-circuit opening in the cap plate, a short-circuit tab electrically coupled to the first electrode terminal and located at a side of the membrane, and the short-circuit tab includes a short-circuit protrusion, the short-circuit protrusion being configured to be separated from or short-circuited to the membrane. The membrane and the short-circuit protrusion have substantially the same resistivity.

Abstract: A rechargeable battery includes: an electrode; a case accommodating the electrode assembly therein; a cap plate closing an opening of the case; a first electrode terminal and a second electrode terminal extending through the cap plate and coupled to the electrode assembly; and an external short-circuiter including a membrane closing and sealing a short-circuit opening in the cap plate and coupled to the second electrode terminal, and a short-circuit tab coupled to the first electrode terminal and separated from the membrane, wherein the cap plate includes a bending inducement groove formed at the second electrode terminal.

Abstract: A rechargeable battery including an electrode assembly including a separator, and a negative electrode and a positive electrode provided on opposite surfaces of the separator; a case accommodating the electrode assembly therein; a cap plate coupled to the case; a negative electrode terminal and a positive electrode terminal respectively connected to the negative electrode and the positive electrode, the negative electrode terminal and positive electrode terminal extending through a terminal hole of the cap plate; a safety member between the electrode assembly and the case; and a first resistance member connecting the safety member with the negative electrode.

Abstract: A rechargeable battery module includes a plurality of unit cells each including a rechargeable battery, a first electrode terminal, and a second electrode terminal; a bus bar coupling adjacent ones of the plurality of unit cells; a first module terminal coupled to the first electrode terminal of one of the plurality of unit cells at one side of the unit cells; a second module terminal coupled to the second electrode terminal of an other one of the plurality of unit cells at an opposite side of the unit cells; and a module short-circuit member coupled to the first module terminal or the second module terminal, separated from the other module terminal, and configured to contact the other module terminal according to temperature.

Abstract: A battery includes an electrode assembly including a first electrode and a second electrode, a first electrode terminal, and a first current collecting member electrically connecting the first electrode terminal and a first electrode uncoated region of the first electrode. The first current collecting member includes a first terminal connection region, a side plate extending downwardly from the first terminal connection region towards the first electrode uncoated region, a first current collecting piece extending from the side plate, the first current collecting piece being in contact with the first electrode uncoated region, and a fuse between the side plate and the first current collecting piece.

Abstract: A rechargeable battery includes at least two electrode assemblies including electrodes on opposite surfaces of a separator, a case accommodating the electrode assemblies, a cap plate coupled to an opening of the case, first and second electrode terminals in the cap plate, and first and second lead tabs connected to respective first and second electrode terminals and to respective uncoated regions of the two electrode assemblies, wherein a first uncoated region of each of the two electrode assemblies is at a center of the case and is connected to the first lead tab, and wherein a second uncoated region of each of the two electrode assemblies is at an edge of the case and is connected to the second lead tab.

Abstract: A rechargeable battery having an electrode assembly including a first electrode, and a second electrode, a case receiving the electrode assembly, a cap plate coupled with the case, a first electrode terminal electrically connected with the first electrode, and a cap connection member connecting the first electrode terminal and the cap plate and having a connection fuse portion formed therein.

Abstract: A rechargeable battery module includes a plurality of rechargeable batteries, each of the rechargeable batteries including an electrode assembly including a positive electrode and a negative electrode, and a first electrode terminal and a second electrode terminal connected to the electrode assembly, and a bus bar electrically connecting the rechargeable batteries, the bus bar including a bus bar fuse part. The first electrode terminal is connected to and installed with a current collecting member that connects the electrode assembly and the first electrode terminal. The current collecting member includes a current collecting fuse part. An operation current at which the bus bar fuse part is melted is less than an operation current at which the current collecting fuse part is melted.

Abstract: A rechargeable battery including an electrode assembly including a first surface; a case containing the electrode assembly and an electrolyte solution; a cap plate covering an opening of the case and including a first surface spaced apart in a first direction from and facing the first surface of the electrode assembly; and an electrolyte solution absorption member inside the case and located between the first surface of the electrode assembly and the first surface of the cap plate in the first direction, the electrolyte solution absorption member configured to absorb a portion of the electrolyte solution.

Abstract: A rechargeable battery includes: an electrode assembly; a case housing the electrode assembly, the case comprising a side wall and having a case opening; a terminal coupled to the electrode assembly; a lead tab coupled between the terminal and the electrode assembly, the lead tab comprising a cell fuse; and a thermal insulation member at a portion of the lead tab adjacent the case opening and another portion of the lead tab adjacent the side wall.

Abstract: A battery pack includes a plurality of six-sided first batteries arranged so that first surfaces of neighboring ones of the first batteries contact each other, and a second battery including a surface that extends in a direction in which the first batteries are arranged, and that contacts second surfaces of the first batteries, wherein the first surfaces of the first batteries have a larger surface area than the second surfaces of the first batteries.

Abstract: A secondary battery includes an electrode assembly, a case having an opening at an upper portion to accommodate the electrode assembly, a cap plate for covering the opening of the case, and a retainer surrounding a corner portion of the electrode assembly, the retainer being disposed between the electrode assembly and a bottom of the case.

Abstract: A battery module including a battery cell including: an electrode assembly including a first electrode and a second electrode; a case housing the electrode assembly; and a short circuit member at a side of the case and electrically coupled to the second electrode is disclosed. The battery may further include a short circuit connector including a short circuit conductor electrically coupled to the first electrode, the short circuit member being spaced from the short circuit conductor and being configured to change shape to contact the short circuit conductor, and the short circuit connector having a cutout below the short circuit conductor.

Abstract: A rechargeable battery module includes: a first battery unit including a plurality of first rechargeable batteries having a first electrode terminal that is electrically connected to a first electrode and a second electrode terminal that is electrically connected to a second electrode; a second battery unit that includes at least one second rechargeable battery having a first electrode terminal that is electrically connected to a first electrode and a second electrode terminal that is electrically connected to a second electrode and that is coupled in series to the first battery unit; and a control unit that controls charge and discharge of the first battery unit and the second battery unit. A short circuit member is provided that is electrically connected to the second electrode terminal of the second rechargeable battery and that is electrically connected to the first module terminal by deformation to cause a short circuit.