A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, a separator located between the first electrode and the second electrode, a first electrode tab extended from the first electrode, and a second electrode tab extended from the second electrode; a case connected to the first electrode tab to accommodate the electrode assembly, and including an opening portion to expose the electrode assembly; a cap plate coupled with the case to cover an outer peripheral region of the opening portion and including a through-hole to expose a center region of the opening portion; and a terminal plate connected to the second electrode tab to be insulation-bonded to the cap plate, and including a flange part covering the through-hole and a protruding part passing through the through-hole from a center portion of the flange part.

A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, a separator located between the first electrode and the second electrode, a first electrode tab extended from the first electrode, and a second electrode tab extended from the second electrode; a case connected to the first electrode tab to accommodate the electrode assembly, and including an opening portion to expose the electrode assembly; a cap plate coupled with the case to cover an outer peripheral region of the opening portion and including a through-hole to expose a center region of the opening portion; and a terminal plate connected to the second electrode tab to be insulation-bonded to the cap plate, and including a flange part covering the through-hole and a protruding part passing through the through-hole from a center portion of the flange part.

A rechargeable battery according to one embodiment of the present invention includes: an electrode assembly having a separator interposed between a first electrode and a second electrode; a case including an upper case having an open lower portion and a penetration hole in the upper portion thereof, and a lower case having an open upper portion to seal the lower portion of the upper case, and accommodating the electrode assembly therein; and a cap plate coupled to the upper case so as to seal the penetration hole and electrically insulated from the upper case, wherein the upper case and the lower case are coupled such that partial regions overlap, and an upper end of the lower case protrudes inwardly and is latched and fixed to the outside of the upper case.

A rechargeable battery according to one embodiment of the present invention includes: an electrode assembly having a separator interposed between a first electrode and a second electrode; a case including an upper case having an open lower portion and a penetration hole in the upper portion thereof, and a lower case having an open upper portion to seal the lower portion of the upper case, and accommodating the electrode assembly therein; and a cap plate coupled to the upper case so as to seal the penetration hole and electrically insulated from the upper case, wherein the upper case and the lower case are coupled such that partial regions overlap, and an upper end of the lower case protrudes inwardly and is latched and fixed to the outside of the upper case.

A battery housing structure and a button battery. The battery housing structure comprises an upper cover and a bottom housing; the bottom housing mates with the upper cover to form a sealing cavity; the sealing cavity is used for mounting of a cell assembly; the bottom housing is provided with a first blind groove. The button battery comprises the cell assembly and the battery housing structure, and the cell assembly is provided in the sealing cavity.

A battery housing structure and a button battery. The battery housing structure comprises an upper cover and a bottom housing; the bottom housing mates with the upper cover to form a sealing cavity; the sealing cavity is used for mounting of a cell assembly; the bottom housing is provided with a first blind groove. The button battery comprises the cell assembly and the battery housing structure, and the cell assembly is provided in the sealing cavity.

The present application provides a case component for a battery, a battery, and a material belt. The case component for the battery according to the present application for accommodating a battery cell includes a case body and a conductive element; the case body includes a bottom case and a top cover; an accommodating cavity is in the bottom case; one end of the bottom case has an opening that is in communication with the accommodating cavity; the battery cell is accommodated in the accommodating cavity of the bottom case; the top cover is disposed on the opening of the bottom case; the conductive element is disposed on the top cover by an insulating adhesive layer; and an edge of the conductive element is provided with at least one positioning gap.

The present application provides a case component for a battery, a battery, and a material belt. The case component for the battery according to the present application for accommodating a battery cell includes a case body and a conductive element; the case body includes a bottom case and a top cover; an accommodating cavity is in the bottom case; one end of the bottom case has an opening that is in communication with the accommodating cavity; the battery cell is accommodated in the accommodating cavity of the bottom case; the top cover is disposed on the opening of the bottom case; the conductive element is disposed on the top cover by an insulating adhesive layer; and an edge of the conductive element is provided with at least one positioning gap.

A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator disposed between the first electrode and the second electrode; a case that is connected to the first electrode to accommodate the electrode assembly and includes an opening exposing the electrode assembly; a cap plate configured to be coupled with the case to cover an outer area of the opening, and configured to include a through-hole exposing a central area of the opening; and a terminal plate that is insulation-bonded to the cap plate to cover the through-hole and is connected to the second electrode, wherein the terminal plate includes a first plate and a second plate.

A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator disposed between the first electrode and the second electrode; a case that is connected to the first electrode to accommodate the electrode assembly and includes an opening exposing the electrode assembly; a cap plate configured to be coupled with the case to cover an outer area of the opening, and configured to include a through-hole exposing a central area of the opening; and a terminal plate that is insulation-bonded to the cap plate to cover the through-hole and is connected to the second electrode, wherein the terminal plate includes a first plate and a second plate.