Abstract: A rechargeable battery according to an exemplary embodiment of the present invention includes: an electrode assembly including electrodes at opposite sides of a separator, each of the electrodes having a coated region and an uncoated region, and the electrodes and the separator being spirally wound; an insulating case for accommodating the electrode assembly and allowing the uncoated regions to be drawn out through respective uncoated region holes; a case for accommodating the insulating case; and a cap plate coupled to an opening of the case and allowing electrode terminals respectively coupled to the uncoated regions to be drawn out through respective terminal holes.

Abstract: A rechargeable battery includes: an electrode assembly including an electrode including an uncoated region; a case configured to accommodate the electrode assembly and including an opening; a cap assembly including an electrode terminal and configured to be coupled to the opening to seal the case; and a current collecting plate configured to be coupled to the uncoated region of the electrode assembly, and the current collecting plate includes: a first flat plate portion including a welded portion welded to the uncoated region, a second flat plate portion including a fuse portion and electrically connected to the electrode terminal, and a vibration absorbing portion connected to the first and second flat plate portions of which opposite end portions face each other in a longitudinal direction, the vibration absorbing portion having a thickness that is thinner than thicknesses of the first and second flat plate portions.

Abstract: A rechargeable battery including: an electrode assembly; a case containing the electrode assembly; a cap plate covering an opening of the case; a terminal extending outside the cap plate; a lead tab connecting the electrode assembly to the terminal; and a retainer coupled to the lead tab inside the case and arranged between the lead tab and the case, the retainer including an insertion guide facing away from the electrode assembly and being inclined toward the electrode assembly in a direction extending away from the cap plate.

Abstract: A secondary battery capable of achieving a higher capacity than a related art jelly-rolled electrode assembly is provided, the secondary battery including an electrode assembly including a first electrode plate and a second electrode plate, each having an uncoated portion protruding from a respective one of laterally opposite sides of the electrode assembly; a current collector at a region corresponding to the uncoated portion of the electrode assembly; and a ductile sub-tab electrically connecting the uncoated portion of the electrode assembly to the current collector, wherein the uncoated portion and the sub-tab are connected to each other and bent together in the same direction.

Abstract: A secondary battery has increased space utilization efficiency and can increase a capacity of an electrode assembly within a given dimension. In an exemplary embodiment, a secondary battery includes: an electrode assembly including an electrode uncoated portion; a case receiving the electrode assembly; a cap plate coupled to a top portion of the case and sealing the case; and a current collector including a terminal connector positioned between the electrode assembly and the cap plate, and an electrode connector bent at an end of the terminal connector and positioned between the electrode assembly and the case, and the electrode connector includes a first region connected to the terminal connector and protruding toward the case, and a second region positioned under the first region and protruding toward the electrode assembly.

Abstract: Provided is a secondary battery, which can reduce defects of an uncoated portion of a current collector while ensuring a larger capacity and improving welding quality of the current collector. In one embodiment, the secondary battery includes a series of electrode assemblies each including a first electrode tab and a second electrode tab, a case accommodating the electrode assemblies, a cap plate coupled to the case at an opening in the case, a first current collector electrically connected to the first electrode tabs of the electrode assemblies, a second current collector electrically connected to the second electrode tabs of the electrode assemblies, and a first series of sub-tabs. A first sub-tab is coupled to the first electrode tab of a first electrode assembly, and a second sub-tab is coupled to the first electrode tab of a second electrode assembly. The first sub-tab is bent along a first boundary and the second sub-tab is bent along a second boundary.

Abstract: A secondary battery includes a retainer and/or an insulation plate having bilateral symmetry, thereby improving work efficiency and productivity. In one or more exemplary embodiments, the secondary battery includes: an electrode assembly; a case receiving the electrode assembly; a cap plate coupled to a top portion of the case and sealing the case; a current collector including a terminal connector positioned between the electrode assembly and the cap plate, and an electrode connector bent from an end of the terminal connector, positioned between the electrode assembly and the case, and having a coupling hole formed therein; an insulation plate positioned on the electrode assembly and coupled to the terminal connector; and a retainer coupled to the electrode connector and including a fixing hook engaged with the coupling hole.

Abstract: A rechargeable battery includes: a first electrode assembly and a second electrode assembly, each of the first and second electrode assemblies including a first electrode and a second electrode, each of the first and second electrodes including an electrode plate and an electrode uncoated region; a case accommodating the first and second electrode assemblies; a cap assembly sealing the case; a first current collecting member electrically connecting the first electrode of the first electrode assembly and the first electrode of the second electrode assembly; and a second current collecting member electrically connecting the second electrode of the first electrode assembly and the second electrode of the second electrode assembly. Each of the first and second current collecting members includes a first current collecting plate coupled with a connecting terminal, and a second current collecting plate, one surface of the second current collecting plate contacting at least one of the electrode uncoated regions.

Abstract: A rechargeable battery includes an electrode assembly comprising electrodes having coated and uncoated regions, being located on opposite sides of a separator and spirally wound together with the separator; a case accommodating the electrode assembly; an insulating plate on the electrode assembly and having a protruding portion and internal terminal holes; and a cap plate sealing the case and having terminal holes, wherein each of the electrode terminals passes through a respective one of the internal terminal holes to protrude from that terminal hole.

Abstract: A rechargeable battery includes an electrode assembly comprising electrodes having coated and uncoated regions and being located at opposite sides of a separator; a case accommodating the electrode assembly; a cap plate sealing the case and having terminal holes through which electrode terminals coupled to the uncoated regions extend; a gasket between each electrode terminal and the cap plate; and a first insulating plate between the cap plate and the electrode assembly and fastened to the gaskets.

Abstract: A secondary battery includes a contact portion on a bottom retainer that contacts a bottom of a case, thus performing a tension function. The secondary battery includes an electrode assembly having a first electrode, a second electrode, and a separator between the first and second electrodes; a case accommodating the electrode assembly therein, having a top and a bottom and an opening in the top of the case; a cap plate closing the opening of the case; a bottom retainer on an upper surface of the bottom of the case, the bottom retainer including a support portion supporting the electrode assembly and at least one contact portion contacting the bottom of the case. As such, the contact portion may absorb external shocks, thus increasing durability and enhancing safety of the secondary battery.

Abstract: A rechargeable battery includes an electrode assembly comprising electrodes having coated and uncoated regions and being located at opposite sides of a separator; a case accommodating the electrode assembly; a cap plate sealing the case and having terminal holes through which electrode terminals coupled to the uncoated regions extend; a gasket between each electrode terminal and the cap plate; and a first insulating plate between the cap plate and the electrode assembly and fastened to the gaskets.

Abstract: A rechargeable battery that simplifies a structure that implements an external short circuit and that reduces a production cost is provided. The rechargeable battery includes: an electrode assembly that is formed by spiral-winding a first electrode and a second electrode that are disposed at respective surfaces of a separator interposed therebetween; a case that houses the electrode assembly; a cap plate that closes and seals an opening of the case; a first electrode terminal that is connected to the first electrode and that is installed in an insulation state in the cap plate; a second electrode terminal that is connected to the second electrode and that is electrically connected to the cap plate; and a vent plate that is installed in a vent hole of the cap plate and that is short-circuited with the first electrode terminal when the vent hole is opened.

Abstract: The described technology has been made in an effort to provide a rechargeable battery having advantages of protecting an electrode assembly and a case from arc debris generated from a cell fuse. A rechargeable battery in accordance with exemplary embodiment includes: an electrode assembly configured to perform charging and discharging operations; a case configured to accommodate the electrode assembly therein; a cap plate coupled to an opening of the case; an electrode terminal installed on the cap plate; a lead tab configured to connect the electrode assembly to the electrode terminal, and including a fuse; and a side retainer supported in an inner surface of the case to be coupled to the lead tab. The side retainer includes an exhaust guide member that is opened toward the cell fuse and a sidewall of the case.

Abstract: A battery module includes: a plurality of rechargeable batteries electrically connected in series with each other, each including a short-circuit member that is deformable according to an increase of an internal pressure; and a fuse member including a connection plate overlapping the short-circuit member and a fuse including a first end connected with the connection plate and a second end connected with a first electrode or a second electrode of one of a first rechargeable battery and a second rechargeable battery located at an end along the plurality of rechargeable batteries.

Abstract: A rechargeable battery that simplifies a structure that implements an external short circuit and that reduces a production cost is provided. The rechargeable battery includes: an electrode assembly that is formed by spiral-winding a first electrode and a second electrode that are disposed at respective surfaces of a separator interposed therebetween; a case that houses the electrode assembly; a cap plate that closes and seals an opening of the case; a first electrode terminal that is connected to the first electrode and that is installed in an insulation state in the cap plate; a second electrode terminal that is connected to the second electrode and that is electrically connected to the cap plate; and a vent plate that is installed in a vent hole of the cap plate and that is short-circuited with the first electrode terminal when the vent hole is opened.

Abstract: A rechargeable battery includes: a first electrode assembly and a second electrode assembly, each of the first and second electrode assemblies including a first electrode and a second electrode, each of the first and second electrodes including an electrode plate and an electrode uncoated region; a case accommodating the first and second electrode assemblies; a cap assembly sealing the case; a first current collecting member electrically connecting the first electrode of the first electrode assembly and the first electrode of the second electrode assembly; and a second current collecting member electrically connecting the second electrode of the first electrode assembly and the second electrode of the second electrode assembly. Each of the first and second current collecting members includes a first current collecting plate coupled with a connecting terminal, and a second current collecting plate, one surface of the second current collecting plate contacting at least one of the electrode uncoated regions.

Abstract: A rechargeable battery includes an electrode assembly comprising electrodes having coated and uncoated regions and being located at opposite sides of a separator; a case accommodating the electrode assembly; a cap plate sealing the case and having terminal holes through which electrode terminals coupled to the uncoated regions extend; a gasket between each electrode terminal and the cap plate; and a first insulating plate between the cap plate and the electrode assembly and fastened to the gaskets.

Abstract: An aspect of an exemplary embodiment of the present invention is directed toward a rechargeable battery for reducing the number of parts for electrically insulating an electrode assembly from a case as well as enabling sizes of the parts to be easily controlled. A rechargeable battery according to an exemplary embodiment of the present invention includes: an electrode assembly including electrodes at opposite sides of a separator, each of the electrodes having a coated region and an uncoated region, and the electrodes and the separator being spirally wound; an insulating case for accommodating the electrode assembly and allowing the uncoated regions to be drawn out through respective uncoated region holes; a case for accommodating the insulating case; and a cap plate coupled to an opening of the case and allowing electrode terminals respectively coupled to the uncoated regions to be drawn out through respective terminal holes.

Abstract: A rechargeable battery includes an electrode assembly comprising electrodes having coated and uncoated regions, being located on opposite sides of a separator and spirally wound together with the separator; a case accommodating the electrode assembly; an insulating plate on the electrode assembly and having a protruding portion and internal terminal holes; and a cap plate sealing the case and having terminal holes, wherein each of the electrode terminals passes through a respective one of the internal terminal holes to protrude from that terminal hole.