Abstract: A battery module includes a first rechargeable battery and a second rechargeable battery electrically coupled in series to each other, the first rechargeable battery and the second rechargeable battery each including a first electrode and a second electrode, and the first rechargeable battery and second rechargeable battery each including a short circuit member that deforms when an internal pressure of the respective one of the first rechargeable battery and second rechargeable battery exceeds a predetermined pressure, and a fuse member including a first pad electrically coupled to the second electrode of the second rechargeable battery, a second pad overlapping the short-circuit member of the second rechargeable battery, and a plurality of fuses formed between the first pad and the second pad, wherein widths of the fuses are smaller than widths of the first and second pads.

Abstract: A rechargeable battery includes an electrode assembly; a case accommodating the electrode assembly; a cap plate coupled to an opening of the case; an electrode terminal connected to the electrode assembly and extending through a terminal hole of the cap plate; and a retainer having first ends contacting the case and located between the electrode assembly and the side wall to support the electrode assembly and the side wall, wherein a thickness of the retainer gradually decreases away from the first ends of the retainer.

Abstract: A rechargeable battery includes an electrode assembly comprising a positive electrode and a negative electrode; a case accommodating the electrode assembly; and a cap assembly combined to the case and electrically connected to the electrode assembly, wherein the cap assembly comprises a first member and a second member that are electrically connected to each other, and a minute current transporting member located between the first member and the second member, the minute current transporting member having a larger resistance than the first member and the second member, and electrically connected to the first member and the second member.

Abstract: A rechargeable battery includes a terminal, a connector, and an insulator. The terminal protrudes from a cap plate and electrically connected to an electrode. The connector is between the first terminal and the cap plate and includes a hole for the terminal. The insulator overlaps a first area of a top surface of the connector and a first area of a bottom surface of the connector, and does not overlap a second area of the top surface of the connector and a second area of the bottom surface of the connector.

Abstract: A rechargeable battery includes an electrode assembly including a first electrode and a second electrode; a case receiving the electrode assembly; a cap plate coupled to the case and defining a terminal hole; a first electrode terminal at the cap plate; a second electrode terminal at the cap plate; a first current collecting tab electrically connecting the electrode assembly to the first electrode terminal; and a second current collecting tab electrically connecting the electrode assembly to the second electrode terminal, wherein at least one of the first electrode terminal or the second electrode terminal protrudes outside the cap plate as a rivet terminal.

Abstract: A rechargeable battery includes an electrode assembly for performing charging and discharging operations, a case accommodating the electrode assembly, a cap plate coupled to an opening of the case, an electrode terminal installed on the cap plate, and a lead tab connecting the electrode assembly to the electrode terminal, the lead tab including a terminal connection part connected to the electrode terminal, and a current-collecting connection part connected to the electrode assembly, the current-collecting connection part including a welding portion connected to the electrode assembly, and an absorption portion separated from the welding portion in a first direction parallel to the cap plate and provided on an outer side of the welding portion.

Abstract: A rechargeable battery includes an electrode assembly including a first electrode and a second electrode inside a case, the case including an open side that is open, and a cap assembly that covers the open side. The cap assembly includes a cap plate that covers the open side, a first terminal that protrudes outside the cap plate and is electrically connected to the first electrode, a connecting member between the first terminal and the cap plate, the connecting member being in a form of a ring including a slit and being made of a conductive material, and an insulating member that covers at least a part of an upper side and a lower side of the connecting member such that another part of the upper side and the lower side of the connecting member is exposed, the insulating member being made of an insulating material.

Abstract: An exemplary embodiment of the present disclosure provides a rechargeable battery including: an electrode assembly that includes a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode; a case that accommodates the electrode assembly, in one lateral surface of which a hole is formed, and that includes an opening formed in another lateral surface facing the one lateral surface; a sealing portion that is connected to the hole and seals the hole so that a lateral surface of the case is flattened; a cap plate combined with the opening; and a second terminal that is connected to the second electrode and is protruded outside the case while passing through the cap plate, wherein the hole may have a shape recessed toward the electrode assembly with respect to a surface of the case.

Abstract: A rechargeable battery including: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case accommodating the electrode assembly; a cap plate sealing an opening of the case; a first sub-terminal including a first portion and a second portion integrally formed with the first portion, the first portion being arranged at one end of the cap plate and the second portion being arranged at an outer surface of the case; and a second sub-terminal including a third portion and a fourth portion integrally formed with the third portion, the third portion being arranged at another end of the cap plate and the fourth portion being arranged at another outer surface of the case.

Abstract: A battery module is disclosed. In one aspect, the battery module includes: a plurality of rechargeable batteries electrically connected to each other, wherein each of the rechargeable batteries comprises a first short-circuit generator configured to be short-circuited based on an increase in battery internal pressure. The battery module also includes a positive electrode and a negative electrode respectively connected to first and second ones of the rechargeable batteries and a first drawn-out tab and a second drawn-out tab respectively connected to the positive and negative electrodes. The battery module further includes a switch configured to electrically connect the negative electrode and the second drawn-out tab and a second short-circuit generator electrically connected to the switch, wherein the second short-circuit generator overlaps, in the height dimension of each of the rechargeable batteries, the first short-circuit generator of the second rechargeable battery.

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 includes: a case accommodating an electrode assembly; a cap plate closing and sealing an opening of the case; an electrode terminal including a rivet terminal being coupled to the electrode assembly and extending through a terminal opening in the cap plate, and a plate terminal being at an outer surface of the cap plate and coupled to the rivet terminal; and an insulating member electrically insulating the electrode terminal from the cap plate, the insulating member including a first insulator and a second insulator. The first insulator being between the cap plate and the plate terminal at an outer periphery of the rivet terminal, and the second insulator being coupled to the first insulator at an outer periphery of the first insulator and between the cap plate and the plate terminal.

Abstract: A rechargeable battery having an improved penetration characteristic of an external short-circuit current in an electrode assembly by reducing an external short-circuit current. A rechargeable battery including an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case containing the electrode assembly; a cap plate covering an opening of the case; an electrode terminal protruding outside the case and electrically connected to the second electrode; and a resistance member between and electrically connecting the electrode terminal and the cap plate.

Abstract: A rechargeable battery includes an electrode assembly including first and second electrodes; a case in which the electrode assembly is accommodated; a cap plate combined to the case; an electrode terminal provided in the cap plate and including first and second electrode terminals; and a lead tab including first and second current collecting tabs for electrically connecting the electrode assembly to the electrode terminal, wherein the second current collecting tab includes an electrode connecting portion that is connected to the electrode assembly, and a terminal connecting portion that is bent from the electrode connecting portion and electrically coupled to the cap plate.

Abstract: A rechargeable battery includes an electrode assembly including first and second electrodes, a case in which the electrode assembly is accommodated, a cap plate combined to an opening of the case, the cap plate including a first terminal hole and a second terminal hole, a first electrode terminal passing through the first terminal hole of the cap plate and a second electrode terminal passing through the second terminal hole of the cap plate, and a lead tab connecting the electrode assembly to the second electrode terminal. The second electrode terminal includes a press-fit portion protruding therefrom, the press-fit portion being press-fitted to the second terminal hole of the cap plate.

Abstract: A rechargeable battery includes: an electrode assembly; a case housing the electrode assembly; a cap plate closing and sealing an opening of the case; an electrode terminal at an outside of the cap plate with respect to the case, extending through an opening in the cap plate, and electrically connected to the electrode assembly; and an insulating member between the electrode terminal and the cap plate. The electrode terminal includes: a first plate terminal electrically connected to the electrode assembly; a second plate terminal spaced from the first plate terminal; and a fuse connecting the first plate terminal and the second plate terminal and being at least partially surrounded by the insulating member.

Abstract: A rechargeable battery includes: an electrode assembly having a first electrode and a second electrode; an electrode terminal electrically coupled to the electrode assembly; a case that receives the electrode assembly; a cap plate at an opening of the case that closes and seals the case, the cap plate having a vent hole to discharge an internal pressure of the case and having a vent plate that closes and seals the vent hole; and a short circuit member having one end electrically coupled to the electrode assembly and another end that extends along a direction toward the vent hole at the inside of the case. At least a portion of the short circuit member is modified to be drawn outside of the vent hole when the internal pressure is discharged.

Abstract: A rechargeable battery includes: an electrode assembly having a first electrode and a second electrode; an electrode terminal electrically connected to the electrode assembly; a case that receives the electrode assembly; a cap plate at an opening of the case, the cap plate closing and sealing the case and having a vent hole configured to discharge an internal pressure of the case; and a vent module including a vent portion, the vent portion including a buffer portion configured to buffer an impact that is transferred to the vent hole, and a fracture portion that closes and seals the vent hole, wherein the fracture portion is configured to be fractured by the internal pressure.

Abstract: A rechargeable battery includes: an electrode assembly including a first electrode and a second electrode; a case accommodating the electrode assembly; a cap plate coupled to the case; and a connection member electrically connecting the first electrode and the cap plate, wherein the connection member is configured to be deformed to electrically disconnect the first electrode and the cap plate.

Abstract: A rechargeable battery includes an electrode assembly; a case housing the electrode assembly; a cap plate sealing an opening of the case; an electrode terminal that is electrically connected to the electrode assembly and extends through a terminal hole of the cap plate and is oriented outside of the cap plate; and an insulating member that electrically insulates the cap plate and the electrode terminal while supporting the electrode terminal at an outer surface of the cap plate.