Abstract:
A secondary battery includes an electrode assembly including a positive electrode, a negative electrode, and separators which are wound together, current collecting plates attached to the electrode assembly, a case configured to accommodate the electrode assembly and the current collecting plates, and a cap configured to cover an opening of the case and electrically connect to the current collecting plates. Each of the current collecting plates includes a current collecting part and a welding part. The current collecting parts electrically connect to the electrode assembly. The welding part is welded to the electrode assembly and the current collecting part.
Abstract:
A secondary battery may be manufactured with an electrode assembly having a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. A container encases the electrode assembly. A hole formed on one end of the container with a stepped configuration that opens with different diameters on opposite sides of a cap plate and a safety valve mounted in the stepped surface of the hole, is configured to rupture and tear open upon occurrence of a predetermined internal battery pressure.
Abstract:
A battery module including a plurality of rechargeable batteries, and a connector for connecting a first terminal of one of the plurality of rechargeable batteries and including a first material to a second terminal of another one of the plurality of rechargeable batteries and including a second material, wherein the connector includes: a first portion connected to the first terminal and including the first material; and a second portion connected to the second terminal and including the second material, and a welded portion connecting the first portion and the second portion.
Abstract:
An RFID reader control system and method is provided. A protocol for controlling an RFID reader and an RFID reader control unit of a mobile phone is defined. Messages, information, commands, responses, and notification are constructed and transmitted between the RFID reader and the RFID reader control unit.
Abstract:
A secondary battery includes: an electrode assembly having a winding including a positive electrode, a negative electrode, and a separator interposed therebetween, the winding centered around a winding axis; a case adapted to receive the electrode assembly, the winding axis being parallel to a longitudinal axis of the case; and first and second cap assemblies adapted to respectively seal opposite ends of the case, the first and second cap assemblies respectively having positive and negative electrode terminals electrically coupled to the electrode assembly. The electrode assembly is adapted to respectively be connected to the first and second cap assemblies by parts of the electrode assembly not coated with active materials, the parts of the electrode assembly not coated with active materials being arranged at opposite ends of the electrode assembly perpendicular to the winding axis.
Abstract:
A rechargeable battery includes an electrode assembly, a case containing the electrode assembly and a cap assembly coupled to the case. The electrode assembly includes a first electrode, a second electrode, and a separator between the first electrode and the second electrode. The cap assembly includes a cap plate and a deformable plate attached to the cap plate and configured to deform in response to an increase in pressure inside the case to electrically couple the first electrode and the second electrode to each other.
Abstract:
A battery module includes a plurality of unit batteries each having a terminal electrically connected to a terminal base. The battery module further includes at least one connector including at least one protrusion on a side facing the terminal base of the terminal to electrically couple the terminal of one of the plurality of unit batteries with the terminal of a neighboring one of the plurality of unit batteries. The at least one protrusion may include at least one first protrusion and at least one second protrusion. The at least one first protrusion contacts the terminal base of the one of the plurality of unit batteries and the at least one second protrusion contacts the terminal base of the neighboring one of the plurality of unit batteries.
Abstract:
A battery includes a case housing an electrode assembly, the case having an opening for receiving the electrode assembly, a cap plate combined with the opening so as to close the case, a first insulator on an outer surface of the cap plate, an electrode terminal electrically connected to the electrode assembly, the electrode terminal extending through a first terminal hole in the cap plate and a second terminal hole in the first insulator, a first connection portion that mates the cap plate to the first insulator so as to oppose rotation of the first insulator relative to the cap plate, the first connection portion being eccentric with respect to a central line of the first terminal hole, and a second connection portion that mates the first insulator to the electrode terminal so as to oppose rotation of the electrode terminal relative to the first insulator.
Abstract:
A battery module includes first supporting members on first terminals of a plurality of batteries, second supporting members on second terminals of the plurality of batteries, the second supporting members having different heights from the first supporting members, and a bus bar that electrically connects a first terminal of a first one of the plurality of batteries to a second terminal of a second one of the plurality of batteries. The bus bar includes a first connection part that is supported on the first supporting member, a second connection part that is supported on the second supporting member, and a third connection part that forms an angle with respect to the first connection part and the second connection part.
Abstract:
A battery module according to the present invention includes rechargeable batteries that include a first terminal and a second terminal which protrude outward, the first terminal including differentiation portions formed of an indentation or a protruding portion to differentiate the first terminal from the second terminal; and connection members that electrically connect the rechargeable batteries, fixed to the first and second terminals of adjacent rechargeable batteries, including verification portions which fit the differentiation portions so as to improve assemblability and minimize contact resistance.