Abstract: A connector of a battery pack includes first pads at both sides of one end of the connector, and second pads at both sides of another end of the connector, wherein the first pads are in contact with each of first and second open portions, and the second pads are in contact with each of third and fourth open portions.

Abstract: A battery pack connector may include a plurality of layers stacked on top of each other along a vertical direction, and a plurality of pad portions arranged at corresponding positions in respective ones of the plurality of layers in central portions of the respective layers.

Abstract: An embodiment provides a circuit board including: a terminal part including a plurality of first terminals, a body part spaced apart from the terminal part and including a plurality of second terminals, and a wire part between the terminal part and the body part, wherein the wire part includes a power wire and a ground wire connecting the plurality of first terminals and the plurality of second terminals, and the ground wire is disposed more outward than the power wire, within the wire part.

Abstract: An embodiment provides a circuit board including: a terminal part including a plurality of first terminals, a body part spaced apart from the terminal part and including a plurality of second terminals, and a wire part between the terminal part and the body part, wherein the wire part includes a power wire and a ground wire connecting the plurality of first terminals and the plurality of second terminals, and the ground wire is disposed more outward than the power wire, within the wire part.

Abstract: A battery pack is disclosed. The battery pack includes at least two battery cells to provide a high capacity battery pack. The battery pack includes a single PCM assembly controlling at least two battery cells to decrease inferiority due to overcharge and overdischarge. Since a connector tab electrically connecting at least two battery cells to a single PCM assembly is provided, contacts are not separated during the swelling of the battery cells to prevent contact inferiority. A top case and a bottom case are provided to be coupled with at least two battery cells to maintain a secure coupling between the at least two battery cells.

Abstract: A battery pack including: a bare cell including a cathode and an anode; and a chip on board (COB) module electrically coupled to the cathode and anode of the bare cell. The COB module controls the charging/discharging of the bare cell. The COB module can be commonly used in different types of batteries and can be connected to a variety of electric devices.

Abstract: A secondary battery includes a bare cell having an electrode terminal and a cap plate, and a protective circuit module protecting the bare cell. The protective circuit module includes a first module positioned on an upper surface of the bare cell, a second module positioned on a lower surface of the bare cell and having a charge/discharge terminal, and a third module positioned on a side surface of the bare cell and electrically connecting the first module to the second module.

Abstract: A battery pack including a bare cell including an electrode assembly inserted therein, a holder case fixed to one side of the bare cell, a protective circuit board seated on the holder case and including a protection circuit electrically connected to the bare cell to control charging or discharging thereof, a first metal member fixed to the protective circuit board, and a second metal member fixed to the holder case and connected to the first metal member.

Abstract: A secondary battery including a first bare cell, a second bare cell disposed to face at least a portion of the first bare cell, and a protection circuit module including a circuit board having an electrical circuit device mounted thereon and at least one connection tab between the first and second bare cells, the connection tab electrically connecting the circuit board to the first and second bare cells.

Abstract: A lithium polymer battery where the corrosion or the electrical short resulting from contact of the metal film of the cut region of external material with the connecting lead or the terminal of the adjacent protective circuit cover can be prevented. The lithium polymer battery comprises: a chargeable and dischargeable bare cell; a protective circuit cover installed on one side surface of the bare cell so as to be electrically coupled to the bare cell; and a holder cap installed between the protective circuit cover and the bare cell so as to block contact between the bare cell and a terminal of the protective circuit cover.

Abstract: A protection circuit board for a secondary battery includes: a printed circuit board; a protection circuit attached to the printed circuit board and electrically connected thereto; a conducting pad electrically connected to a conducting pad of the protection circuit; a charging/discharging terminal electrically connected to the protection circuit and the conducting pad; a lead plate electrically connected to the conducting pad, the lead plate including at least one soldering hole arranged on a surface thereof to couple the lead plate to the conducting pad.

Abstract: A battery pack including a bare cell including an electrode assembly inserted therein, a holder case fixed to one side of the bare cell, a protective circuit board seated on the holder case and including a protection circuit electrically connected to the bare cell to control charging or discharging thereof, a first metal member fixed to the protective circuit board, and a second metal member fixed to the holder case and connected to the first metal member.

Abstract: A secondary battery including a first bare cell, a second bare cell disposed to face at least a portion of the first bare cell, and a protection circuit module including a circuit board having an electrical circuit device mounted thereon and at least one connection tab between the first and second bare cells, the connection tab electrically connecting the circuit board to the first and second bare cells.

Abstract: A secondary battery includes a bare cell having an electrode terminal and a cap plate, and a protective circuit module protecting the bare cell. The protective circuit module includes a first module positioned on an upper surface of the bare cell, a second module positioned on a lower surface of the bare cell and having a charge/discharge terminal, and a third module positioned on a side surface of the bare cell and electrically connecting the first module to the second module.

Abstract: A battery pack is disclosed. The battery pack includes at least two battery cells to provide a high capacity battery pack. The battery pack includes a single PCM assembly controlling at least two battery cells to decrease inferiority due to overcharge and overdischarge. Since a connector tab electrically connecting at least two battery cells to a single PCM assembly is provided, contacts are not separated during the swelling of the battery cells to prevent contact inferiority. A top case and a bottom case are provided to be coupled with at least two battery cells to maintain a secure coupling between the at least two battery cells.

Abstract: A battery pack including: a bare cell including a cathode and an anode; and a chip on board (COB) module electrically coupled to the cathode and anode of the bare cell. The COB module controls the charging/discharging of the bare cell. The COB module can be commonly used in different types of batteries and can be connected to a variety of electric devices.

Abstract: A protection circuit board for a secondary battery includes: a printed circuit board; a protection circuit attached to the printed circuit board and electrically connected thereto; a conducting pad electrically connected to a conducting pad of the protection circuit; a charging/discharging terminal electrically connected to the protection circuit and the conducting pad; a lead plate electrically connected to the conducting pad, the lead plate including at least one soldering hole arranged on a surface thereof to couple the lead plate to the conducting pad.

Abstract: A lithium polymer battery where the corrosion or the electrical short resulting from contact of the metal film of the cut region of external material with the connecting lead or the terminal of the adjacent protective circuit cover can be prevented. The lithium polymer battery comprises: a chargeable and dischargeable bare cell; a protective circuit cover installed on one side surface of the bare cell so as to be electrically coupled to the bare cell; and a holder cap installed between the protective circuit cover and the bare cell so as to block contact between the bare cell and a terminal of the protective circuit cover.