Abstract: A cylindrical secondary battery includes: an electrode assembly including a positive electrode plate having a positive electrode multi-tab, a separator, and a negative electrode plate having a negative electrode multi-tab, the positive electrode plate, the separator, and the negative electrode plate being laminated and wound; a cylindrical can accommodating the electrode assembly; a cap plate coupled at an upper end of the cylindrical can and being electrically connected to the negative electrode multi-tab; and a positive electrode terminal protruding upwardly through the cap plate and being electrically connected to the positive electrode multi-tab.

Abstract: A secondary battery is provided in which a first electrode (negative electrode) terminal and a second electrode (positive electrode) terminal may be concurrently (e.g., simultaneously) implemented in a cap assembly. A secondary battery includes: a case including a beading part and a crimping part; an electrode assembly physically coupled to the case and including a first electrode plate and a second electrode plate, the first electrode plate being electrically connected to the case; a first insulating gasket between the beading part and the crimping part; a cap plate coupled between the beading part and the crimping part through the first insulating gasket; a second insulating gasket extending through and coupled to the cap plate; and a rivet terminal extending through and physically coupled to the second insulating gasket, wherein the rivet terminal is electrically connected to the second electrode plate of the electrode assembly.

Abstract: A secondary battery includes: an electrode assembly having a first electrode plate having a first electrode substrate tab arranged in one direction, a second electrode plate having a second electrode substrate tab arranged in an opposite direction to the first electrode substrate tab, and a separator interposed between the first electrode plate and the second electrode plate, and wound into a cylindrical shape; a cylindrical can configured accommodating the electrode assembly; a first electrode current collector plate electrically connected to the first electrode substrate tab; and a second electrode current collector plate electrically connected to the second electrode substrate tab, wherein the first electrode substrate tab contacts the first electrode current collector plate, and the separator extends and contacts the first electrode current collector plate with the first electrode substrate tab interposed therebetween.

Abstract: One or more embodiments relates to a secondary battery capable of suppressing internal stress of the side of the electrode assembly, and capable of ensuring internal space of a case. The secondary battery according to one or more embodiments includes a case defining a space therein, an electrode assembly in the case and including a positive electrode plate, a negative electrode plate, and a separator wound in a cylindrical shape, and an adhesive part adhering and fixing a winding end of an outermost surface of the electrode assembly, and a cap assembly sealing the case.

Abstract: Disclosed is a cylindrical secondary battery including an electrode assembly, a cylindrical can having a circular upper surface portion and a side portion extending from the upper surface portion, the side portion having a beading portion formed adjacent to an end thereof so as to be inwardly recessed and a crimping portion formed by bending an end of the side portion, the can receiving the electrode assembly, and a cap plate coupled to an open end of the can, the cap plate having a notch formed therein, wherein the rupture pressure of the notch is lower than the uncrimping pressure of the crimping portion. The cylindrical secondary battery may be efficiently designed by designing and controlling factors that affect the rupture pressure and uncrimping, and safety of the cylindrical secondary battery can be improved by performing control such that uncrimping does not occur before rupture of the notch.

Abstract: A secondary battery includes: an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a case accommodating the electrode assembly; a positive electrode current collector in the case and electrically connected to the first electrode plate; a rivet terminal having one side connected to the positive electrode current collector and another side extending to an outside of the case; an inner insulating part between the positive electrode current collector and the case to block an electrical connection between the positive electrode current collector and the case; and a distance-maintaining member between the inner insulating part and the positive electrode current collector to maintain a distance between the inner insulating part and the positive electrode current collector.

Abstract: A cylindrical secondary battery including an electrode assembly including a negative electrode plate and a positive electrode plate; a cylindrical can accommodating the electrode assembly and including a terminal hole in one side of the cylindrical can and an open inlet in another side of the cylindrical can; a terminal coupled to the cylindrical can through the terminal hole; and a negative electrode current collector in the cylindrical can and electrically connecting the cylindrical can to the negative electrode plate. The negative electrode current collector includes a notch groove or a cutting hole configured to be cut in response to an increase in pressure in the cylindrical can.

Abstract: A cylindrical secondary battery includes an electrode assembly including a first electrode plate, a separator, and a second electrode plate; a case accommodating the electrode assembly and electrically connected to the second electrode plate; a terminal electrically connected to the first electrode plate and coupled to the case via a first gasket; a cap plate configured to seal an upper end portion of the case, a second gasket between the case and the cap plate; a first current collector between a lower surface of the electrode assembly and the terminal; and a second current collector between an upper surface of the electrode assembly and the cap plate and at one side of an edge region thereof between the case and the second gasket. An electrically conductive connection induction portion is on at least one of the cap plate or the second current collector.

Abstract: The present disclosure provides a secondary battery including a case having a cylindrical shape, an electrode assembly in the case, and including a first tab protruding in a first direction at a center portion, and a second tab protruding in the first direction at a perimeter, a first current collector plate in the case and electrically connected to the first tab, a second current collector plate electrically connecting the second tab to the case, and a rivet terminal electrically connected to the first current collector plate, and passing through the case.

Abstract: A secondary battery includes a case having a cylindrical shape, an electrode assembly accommodated in the case and including first tabs protruding in a first direction and second tabs protruding in the first direction, a first current collector plate accommodated in the case and connected to the first tabs, a second current collector plate configured to connect the second tabs to the case, a rivet terminal connected to the first current collector plate and passing through the case, and an insulating member in contact with a perimeter of each of the electrode assembly, the first current collector plate, and the second current collector plate.

Abstract: A cylindrical secondary battery includes: an electrode assembly including a positive electrode plate having a positive electrode multi-tab, a separator, and a negative electrode plate having a negative electrode multi-tab, the positive electrode plate, the separator, and the negative electrode plate being laminated and wound; a cylindrical can accommodating the electrode assembly; a cap plate coupled at an upper end of the cylindrical can and being electrically connected to the negative electrode multi-tab; and a positive electrode terminal protruding upwardly through the cap plate and being electrically connected to the positive electrode multi-tab.

Abstract: A processing apparatus for a base material tab protruding from a cylindrical electrode assembly includes: a vertical plate arranged in a second direction perpendicular to a first direction, the first direction being a longitudinal direction of the electrode assembly; a rotatable plate that is a planar plate arranged parallel to the vertical plate and coupled to be rotatable relative to the vertical plate; and a plurality of blades coupled between the vertical plate and the rotatable plate. The blades together form a variable diameter central area defined by ends of the blades according to the relative rotation of the rotatable plate to process the base material tab of the electrode assembly.

Abstract: A winding member, including a winding core for an electrode assembly, winding a positive electrode plate, a negative electrode plate, and a first separator, the winding core including a pair of clamps extending along a longitudinal direction of the winding core a base portion coupled to a first and second end of each of the clamps the clamps being spaced apart from each other vertically around an insertion groove, the clamps including a first clamp and a second clamp extending along the longitudinal direction the first clamp including a pair of protrusions protruding in the direction of the second clamp on an inner surface of the first clamp, and at least one of the pair of protrusions fixing a winding-front end of the first separator inserted into the insertion groove to an inner surface of the second clamp.

Abstract: A secondary battery includes: a can having an accommodation space therein; an electrode assembly accommodated in the accommodation space in the can; and a cap assembly sealed with the can. The can has a beading part recessed into a side wall of the can at a region below where the cap assembly is accommodated, and the beading part has an acute angle with respect to the side wall of the can.

Abstract: A cylindrical secondary battery and a manufacturing method of a secondary battery are provided. A manufacturing method of a cylindrical secondary battery includes: winding an electrode assembly to expose a first electrode uncoated portion and a second electrode uncoated portion to opposite ends in a longitudinal direction; bending at least some portions of the first electrode uncoated portion and the second electrode uncoated portion of the electrode assembly in a direction by pressing the first electrode uncoated portion and the second electrode uncoated portion; welding electrode collector plates to ends of the bent first and second electrode uncoated portions; and inserting and sealing the electrode assembly into a cylindrical case.

Abstract: A cylindrical secondary battery includes: an electrode assembly including a positive electrode plate having a positive electrode multi-tab, a separator, and a negative electrode plate having a negative electrode multi-tab, the positive electrode plate, the separator, and the negative electrode plate being laminated and wound; a cylindrical can accommodating the electrode assembly; a cap plate coupled at an upper end of the cylindrical can and being electrically connected to the negative electrode multi-tab; and a positive electrode terminal protruding upwardly through the cap plate and being electrically connected to the positive electrode multi-tab.

Abstract: A cylindrical secondary battery includes: a cylindrical can having a circular bottom portion, a side portion extending from the bottom portion, a beading part concavely formed inwardly at one end of the side portion, and a crimping part formed by bending a distal end of the side portion; an electrode assembly in the can; and a cap assembly sealing the can. The cap assembly includes a gasket for insulation from the can, and an upper portion of the gasket in a direction away from the electrode assembly has a smaller thickness than a lower portion of the gasket.

Abstract: A secondary battery is provided in which a first electrode (negative electrode) terminal and a second electrode (positive electrode) terminal may be concurrently (e.g., simultaneously) implemented in a cap assembly. A secondary battery includes: a case including a beading part and a crimping part; an electrode assembly physically coupled to the case and including a first electrode plate and a second electrode plate, the first electrode plate being electrically connected to the case; a first insulating gasket between the beading part and the crimping part; a cap plate coupled between the beading part and the crimping part through the first insulating gasket; a second insulating gasket extending through and coupled to the cap plate; and a rivet terminal extending through and physically coupled to the second insulating gasket, wherein the rivet terminal is electrically connected to the second electrode plate of the electrode assembly.

Abstract: Disclosed is an apparatus for opening and closing sample storage containers, including: a housing 110 having an external appearance provided such that a handle 130 held by a user is exposed; a driving device 180 for generating driving force to rotate a rotation shaft; a key 150 fitted and coupled to a lid 1 of at least one sample storage container and configured to be rotated by the driving force; and an ejector 160 for pressing the lid 1 when the handle 130 is pressed, so that the key 150 is disengaged from the lid 1.

Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulating member is mounted on the top of the jelly-roll and the insulating member includes a perforated inlet enabling gas discharge and penetration of electrode terminals and a plurality of pores with a diameter of 100 ?m or less provided over the entire surface of the insulating member.