Abstract: A protection element includes a positive temperature coefficient (PTC) material layer, a second conductive layer on a second surface of the PTC material layer, a first electrode lead layer on the first conductive layer, and a second electrode lead layer on the second conductive layer. The first conductive layer includes a plurality of laminated first layers and the second conductive layer includes a plurality of laminated second layers. The first conductive layer has a plurality of first through-holes including a first conductive material to connect at least two of the first layers. The second conductive layer having a plurality of second through-holes including a second conductive material to connect at least two of the second layers.

Abstract: A protection circuit module (PCM) integrated cap assembly includes a cap plate including an electrically conductive material and defining a through hole passing from a first surface of the cap plate to a second surface of the cap plate, a wiring unit including an electrically conductive material and a circuit pattern, and facing the first surface of the cap plate, wherein a first edge of the wiring unit is electrically coupled to the cap plate, and wherein a second edge of the wiring unit extends through the through hole of the cap plate a first insulating unit in a space of the circuit pattern a second insulating unit between the second edge of the wiring unit and a portion of the cap plate defining the through hole, and at least one electrical component coupled to the circuit pattern.

Abstract: A protection element includes a positive temperature coefficient (PTC) material layer, a second conductive layer on a second surface of the PTC material layer, a first electrode lead layer on the first conductive layer, and a second electrode lead layer on the second conductive layer. The first conductive layer includes a plurality of laminated first layers and the second conductive layer includes a plurality of laminated second layers. The first conductive layer has a plurality of first through-holes including a first conductive material to connect at least two of the first layers. The second conductive layer having a plurality of second through-holes including a second conductive material to connect at least two of the second layers.

Abstract: A battery pack providing power to a portable electronic device is disclosed which inhibits electromagnetic waves generated by the battery pack from interfering with the portable electronic device. The portable electronic device may include a radiofrequency (RF) circuit including a transceiver. The battery pack may include a battery cell and a protection circuit module (PCM) which operates to prevent the battery cell from overcharge/overdischarge and overheating. The PCM may include a substrate and a protection device mounted to the substrate. Electromagnetic waves generated when the protection device operates are shielded from the portable electronic device by a shielding layer formed on the substrate of the PCM. The substrate may include a plurality of circuit layers, each including a circuit layer, with the circuit layers in electrical communication with one another. A shielding pattern is formed on at least one of the circuit layers.

Abstract: An antenna module for a terminal device includes: a substrate; and a conductive coil on the substrate and having a first end at an outside of the conductive coil and a second end at an inside of the conductive coil, the conductive coil including: one or more loops; and a plurality of conductive strips extending from an innermost one of the one or more loops.

Abstract: A rechargeable battery is disclosed. In one aspect, the rechargeable battery includes an electrode assembly including a first electrode plate, a second electrode plate, and a separator interposed between the first and second electrode plates. The rechargeable battery also includes an electrolyte and a can having an opening which is formed at the top of the can and through which the electrode assembly is inserted, the can accommodating the electrode assembly and the electrolyte. The rechargeable battery further includes a cap plate sealing the opening of the can, attached to the can and forming a recessed region and a protrusion region protruding along a first direction toward the top of the can so as to form a step with respect to the recessed region, a protective circuit module disposed on the cap plate, and an electrode terminal formed on the cap plate.

Abstract: A protection apparatus for a battery pack includes a conduction portion including a pad portion, and a connection portion outside of the pad portion and electrically coupled to the pad portion and a bare cell; and an insulation portion covering at least a portion of the conduction portion, wherein the pad portion and the connection portion are coplanar.

Abstract: A protection circuit module (PCM) integrated cap assembly includes a cap plate including an electrically conductive material and defining a through hole passing from a first surface of the cap plate to a second surface of the cap plate, a wiring unit including an electrically conductive material and a circuit pattern, and facing the first surface of the cap plate, wherein a first edge of the wiring unit is electrically coupled to the cap plate, and wherein a second edge of the wiring unit extends through the through hole of the cap plate a first insulating unit in a space of the circuit pattern a second insulating unit between the second edge of the wiring unit and a portion of the cap plate defining the through hole, and at least one electrical component coupled to the circuit pattern.