Abstract: A secondary battery according to some embodiments of the present disclosure may include an electrode assembly including a first electrode, a second electrode, and a separator and a case accommodating the electrode assembly. The case may include a body part having an open side and accommodating the electrode assembly and a cover plate covering the open side of the body part and including a vent portion.

Abstract: A secondary battery includes a case comprising a body portion having an opening formed therein and a cover covering the opening. An electrode assembly is accommodated in the case, with the electrode assembly including a first electrode, a second electrode, and a separator. At least one of the body portion and the cover includes a vent hole configured to expose a portion of the electrode assembly and a vent plate sealing the vent hole.

Abstract: A charge and discharge pin for a secondary battery and a probe for a charge and discharge test of a secondary battery . The charge and discharge pin includes a head part including a front end surface and an outer peripheral surface, the front end surface configured to be in contact with a terminal of the secondary battery and the outer peripheral surface extending from the front end surface; a coupling part disposed on the head part and configured to be coupled to the terminal of the secondary battery; and an insulating member covering at least a portion of the outer peripheral surface of the head part.

Abstract: A secondary battery includes an electrode assembly having a first electrode, a second electrode, and a separator disposed between the first electrode and the second electrode. A body of the secondary battery includes a receiving portion in which the electrode assembly is received and a flange portion on an outer side. A cover is disposed on the body to seal the receiving portion. A bent portion is formed at which the body and the cover are integrally connected and bent. An electrode terminal is disposed on a side surface of the body that comprises the bent portion. The body and the cover each includes a metal layer, a polymer layer, and an adhesive layer interposed between the metal layer and the polymer layer.

Abstract: A method of manufacturing a secondary battery includes preparing a case in which an electrode assembly is accommodated. A first electrolyte is injected into an interior of the case through an electrolyte injection hole formed in the case. A solution is injected into the interior of the case after the first electrolyte has been injected through the electrolyte injection hole of the case. The solution includes a second electrolyte, a monomer, and a polymerization initiator.

Abstract: A secondary battery includes a case comprising a body part having an opening formed therein and a cover part covering the opening. A stacked electrode assembly is accommodated in the case, the electrode assembly including a first electrode connected to a first substrate tab, a second electrode connected to a second substrate tab, a separator between the first and second electrode, a first lead tab having an end coupled to the first substrate tab, and a second lead tab having an end coupled to the second substrate tab. The electrode assembly includes a first adhesive member covering a coupling region between the first substrate tab and the first lead tab, a second adhesive member wrapping at least one of side surfaces of the electrode assembly and a portion of at least one of main surfaces of the electrode assembly, a third adhesive member wrapping a lower surface of the electrode assembly and a portion of at least one of the main surfaces, and a fourth adhesive member attached in an inclined region.

Abstract: The present disclosure provides a case for a secondary battery. The case for a secondary battery includes a can that includes a receiving part including a first injection hole and a first terminal hole in a first side of the receiving part and a flange part around a second side of the receiving part, a reinforcing plate joined with the first side of the receiving part, wherein the reinforcing plate includes a second injection hole corresponding to the first injection hole and a second terminal hole corresponding to the first terminal hole and a cover joined with the flange part to seal the second side of the receiving part.

Abstract: A secondary battery includes: an electrode assembly including a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode; a lower case having an open top, and including a receiving portion to receive the electrode assembly; and an upper case sealing the open top of the lower case. A first electrode terminal electrically connected to the first electrode is located on one side surface of the lower case; the upper case is integrally extended from an upper edge portion of the one side surface; and the upper case is connected to edge portions of the lower case, other than the upper edge portion of the one side surface, from among open upper edge portions of the lower case.

Abstract: A case may include a case body having an accommodation space and a first through-hole in a first wall of the case body, a first insulating member on an inner surface of the first wall, a terminal plate on the first insulating member, a rivet terminal penetrating the first through-hole of the case body, the first insulating member, and the terminal plate, and an electrode terminal connected to the rivet terminal on an outer surface of the first wall. The first insulating member may include a horizontal portion on the inner surface of the first wall, and a first extension portion extending from one side of the horizontal portion. 4904-4113-1563, v.

Abstract: An aspect of the present invention is to provide a rechargeable battery that implements a high output of an electrode assembly by reducing electrical resistance at a connection portion of a uncoated portion and a lead tab. A rechargeable battery according to an embodiment of the present invention includes: an electrode assembly wound by arranging a separator between electrodes; a lead tab connected to the electrode; and a case which accommodates the electrode assembly and of which the lead tab is drawn to the outside, and the lead tab includes a first tab formed with a first width and a first thickness and connected to an uncoated portion of the electrode, and a second tab formed with a second width equal to or less than the first width and a second thickness equal to or more than the first thickness, and connected to the first tab.

Abstract: A secondary battery includes: a case including: a body portion having a receiving space accommodating an electrode assembly; and a flange portion extending horizontally from a top of the body portion, and surrounding around the receiving space; and a cover on the top of the body portion to be bonded to the flange portion and seal the receiving space. The flange portion includes: a first flange protrusion protruding from a first side of the flange portion, and having a first flange hole; and a second flange protrusion protruding from a second side opposite to the first side of the flange portion, and having a second flange hole. The cover includes: a first cover protrusion corresponding to the first flange protrusion, and having a first cover hole; and a second cover protrusion corresponding to the second flange protrusion, and having a second cover hole.

Abstract: A secondary battery charge and discharge pin includes a head configured to come into contact with a terminal of a secondary battery, and an insulating member configured to cover at least a part of the head.

Abstract: Provided is a battery case including a lower case including a metal layer, an adhesive layer, and a polymer layer. To this end, the battery case includes: a lower case including an accommodation portion for accommodating an electrode assembly and a flange portion surrounding the accommodation portion, and an upper cover arranged to at least partially face the flange portion of the lower case. At least a portion of the lower case has a laminated structure in which a metal layer exposed to the outside, an adhesive layer in contact with the metal layer, and a polymer layer in contact with the adhesive layer are laminated.

Abstract: An aspect of the present invention is to provide a rechargeable battery that implements a high output of an electrode assembly by reducing electrical resistance at a connection portion of a uncoated portion and a lead tab. A rechargeable battery according to an embodiment of the present invention includes: an electrode assembly wound by arranging a separator between electrodes; a lead tab connected to the electrode; and a case which accommodates the electrode assembly and of which the lead tab is drawn to the outside, and the lead tab includes a first tab formed with a first width and a first thickness and connected to an uncoated portion of the electrode, and a second tab formed with a second width equal to or less than the first width and a second thickness equal to or more than the first thickness, and connected to the first tab.

Abstract: A rechargeable battery includes: an electrode assembly including a separator between a first electrode and a second electrode each having uncoated regions and coated regions, and in which the separator, the first electrode, and the second electrode are spirally wound; a case that houses the electrode assembly; and a first electrode tab and a second electrode tab to be drawn outside of the case that are respectively coupled to the uncoated regions of the first electrode and the second electrode while maintaining a tab gap between the first electrode tab and the second electrode tab, where the first electrode tab is coupled to a gap uncoated region between the coated regions of the first electrode, and where in a thickness direction of the electrode assembly, in an area facing the first electrode tab, an internal side end uncoated region of the second electrode is located.

Abstract: A rechargeable battery includes a wound electrode assembly including a separator between a first electrode and a second electrode, the first and second electrodes each including uncoated regions and coated regions; a case accommodating the electrode assembly; and a first electrode terminal and a second electrode terminal respectively coupled to the first and second electrodes and extending from the case, an uncoated region of the first electrode including inner and outer uncoated regions of a terminal end portion located at an outermost side of the electrode assembly, and the second electrode including an outer uncoated region of a terminal end portion facing the inner uncoated region of the first electrode and an additional inner coated region at an opposite side of the outer uncoated region.

Abstract: A rechargeable lithium battery includes a positive active material for intercalating and deintercalating lithium ions; a negative electrode including a negative active material for intercalating and deintercalating lithium ions; and a polymer electrolyte including a polymer, a non-aqueous organic solvent and a lithium salt. The rechargeable lithium battery has a battery capacity per unit area of the positive electrode from about 3.3 mAh/cm2 to about 2.8 mAh/cm2. The polymer includes a first monomer represented by the following Chemical Formula 1 and a second monomer represented by at least one of the following Chemical Formulae 2 to 7 at a weight ratio of about 85:15 to about 50:50 of the first monomer to the second monomer. In the above Chemical Formulae 1 to 7, each compound is as described in the detailed description.

Abstract: A rechargeable battery includes: an electrode assembly including a separator between a first electrode and a second electrode each having uncoated regions and coated regions, and in which the separator, the first electrode, and the second electrode are spirally wound; a case that houses the electrode assembly; and a first electrode tab and a second electrode tab to be drawn outside of the case that are respectively coupled to the uncoated regions of the first electrode and the second electrode while maintaining a tab gap between the first electrode tab and the second electrode tab, where the first electrode tab is coupled to a gap uncoated region between the coated regions of the first electrode, and where in a thickness direction of the electrode assembly, in an area facing the first electrode tab, an internal side end uncoated region of the second electrode is located.

Abstract: A rechargeable battery, including an electrode assembly including wound electrodes with a separator therebetween; a pouch housing the electrode assembly; and lead tabs connected to the electrodes and drawn out of the pouch, the lead tabs including an inner tab having a first thickness, connected to the electrode, and drawn out of the electrode assembly.

Abstract: A rechargeable battery includes a wound electrode assembly comprising a separator between a first electrode and a second electrode, wherein the first and second electrodes each include uncoated regions and coated regions; a case accommodating the electrode assembly; and a first electrode terminal and a second electrode terminal respectively coupled to the first and second electrodes and extending from the case, wherein an uncoated region of the first electrode includes inner and outer uncoated regions of a terminal end portion located at an outermost side of the electrode assembly, and wherein the second electrode includes an outer uncoated region of a terminal end portion facing the inner uncoated region of the first electrode and an additional inner coated region at an opposite side of the outer uncoated region.