Abstract: Disclosed is a secondary battery that enhances the coupling strength between a protection circuit module and a bare cell. The secondary battery includes: a bare cell; and a protection circuit module including a circuit board and at least one coupling member coupling the circuit board to the bare cell by welding, the coupling member including a first coupling portion having a substantially plate-like shape coupled to the bare cell by welding and at least a through-hole formed inside the edge of the first coupling portion.

Abstract: The present invention relates to a secondary battery. The present invention is aimed to provide a secondary battery having a thin upper case formed of a metal. The secondary battery includes a bare cell; a protection circuit module having a circuit board; an upper case formed of a metal and having a cover plate for covering the circuit board of the protection circuit module; and a case-insulating layer formed on an external surface of the cover plate of the upper case.

Abstract: A battery pack includes a bare cell including a cap plate and an electrode terminal insulated from the cap plate and a circuit module including a circuit board having a first short side, a second short side generally opposite the first short side, a first long side and a second long side generally opposite the first long side. The circuit board includes a base lead plate attached to the circuit board and a base fixing protrusion extending from the base lead plate, wherein the circuit module is on and electrically connected to the bare cell. The battery pack also includes an upper cover covering the circuit module, the upper cover including a base fixing groove adapted to receive the base fixing protrusion, wherein base fixing protrusion is in the base fixing groove.

Abstract: A secondary battery includes a bare cell and a protection circuit module electrically connected to the bare cell. The protection circuit module includes a flexible printed circuit board including a circuit board body and a terminal-forming portion providing a first external terminal and a second external terminal and a support member to which the terminal-forming portion is attached, the support member having a support surface spaced from the circuit board body.

Abstract: A battery pack is constructed with at least two battery cells that are arranged in parallel to each other and provided with surfaces facing each other, and a spacer structure interposed between the facing surfaces of the battery cells. A through-hole is formed in an interior portion of the spacer structure and corresponds to a portion where thicknesses of the battery cells are increased when the battery cells are swollen. Therefore, the facing battery cells do not interfere with each other even if the thickness of the battery cell is changed due to swelling of the middle portion thereof when the battery cells are repeatedly charged/discharged in the case where at least two battery cells are included.

Abstract: A battery pack including a bare cell, a protective circuit module electrically connected to the bare cell, and a case assembly overlying the bare cell and protective circuit module, the case assembly including a cover case and a fixing member; the cover case and the fixing member of the case assembly both being integral with each other.

Abstract: A secondary battery capable of being formed to be relatively small by reducing the sizes of internal devices and compactly locating the internal devices. Accordingly, the volume of the secondary battery is reduced and the capacity thereof is maintained, thereby increasing the capacity density of the secondary battery. In one embodiment, the secondary battery includes a bare cell having a cap plate and a protection circuit module on the bare cell and including a printed circuit board surface-contacting the cap plate.

Abstract: A protection circuit board, a secondary battery with the protection circuit board, and a battery pack comprising the secondary battery. A PTC device which is a secondary protection device is provided on the protection circuit board, and is installed in electrical connection with an electrode terminal of a bare cell of the secondary battery. According to a structural configuration where the PTC device is electrically connected to the bare cell while being installed on the protection circuit board, the PTC device sensitively responds to temperature changes of the bare cell to thereby cut off a flow of electric current. Due to such a structural configuration of the PTC device, formation of an electrode lead is excluded for electrical connection with the bare cell on the protection circuit board. Consequently, a pattern-forming area which is designed on the protection circuit board increases.

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 protective circuit module including a layered insulating substrate, a printed circuit pattern disposed within the insulating substrate, and a loop antenna electrically connected to the printed circuit pattern. Ends of the loop antenna can be inserted into the insulating substrate and connected to the printed circuit pattern. Portions of the printed circuit pattern may extend out of the insulating substrate, and may be connected to the loop antenna. The protective circuit module can be included in a secondary battery pack comprising a secondary battery. The loop antenna can be adhered to the secondary battery.

Abstract: A side case coupled to a secondary battery in a sliding manner to cover sides of the secondary battery. The secondary battery includes: a rectangular prism battery body; a guide member arranged in a lengthwise direction of one of the pair of the sides of the battery body; a first side case that includes a horizontal portion that is coupled to the guide member to cover one of the horizontal sides of the battery body and a vertical portion that is connected to one end of the horizontal portion to cover at least a portion of an adjacent side of the battery body; and a second side case that is coupled to the battery body, and includes vertical and horizontal portions that are generally symmetric to the vertical portion and the horizontal portion of the first side case and a plurality of terminal holes formed in the horizontal portion.

Abstract: A pack type battery includes a bare cell having a top edge, a bottom edge, and opposing side surfaces. A protective circuit module is electrically coupled to the bare cell by a lead plate. A substrate cover is attached to the bare cell and covers the protective circuit module. A pair of elongate cell covers are provided, each elongate cell cover including a base for covering an edge of the bare cell and a skirt extending from longitudinal edges of the base for covering a portion of the opposing side surfaces. A label covers the opposing side surfaces of the bare cell and the skirt of each elongate cell cover.

Abstract: A secondary battery capable of assembling a bare cell and a protective circuit module (PCM) in a manner of mechanical connection without performing a molding is provided. The secondary battery includes a bare cell whose top surface is provided with an electrode terminal having a polarity, a first case covering the top surface of the bare cell, a second case covering a first side surface of the bare cell, a first lead tab coupling the electrode terminal to the PCM, and a second lead tab coupling a surface of the bare cell having another polarity to the protective circuit module. Both of the first and the second lead tabs are covered by the first case.

Abstract: A secondary battery that can simplify manufacturing of an assembly of a bare cell and a protection circuit module, and reduce manufacturing costs by installing a connecting member of a protection circuit module electrically coupled to a bare cell in one direction of the bare cell. The secondary battery may be constructed with a bare cell; a protection circuit module installed on one edge side surface of the bare cell; first and second electrode terminals included in the bare cell; and first and second lead plates respectively configured to electrically couple the protection circuit module to the first and second electrode terminals, wherein the first and second lead plates are installed on the same single side edge surface between side surfaces of the bare cell.

Abstract: A connection terminal of a secondary battery and a secondary battery using the same, and more particularly, to a connection terminal and a secondary battery using the same that have the anti-press function and the support function of a protection circuit board as well as the function of electrically connecting a bare cell with the protection circuit board. A connection terminal is installed between one side of a bare cell and a protective circuit board and includes a connection part that is connected with one electric terminal of the protective circuit board and a support part, and the support part has a horizontal support part that is fixed to one side of the bare cell and a vertical support part that connects the horizontal support part with the connection part.

Abstract: The present invention relates to a lithium rechargeable battery having outer covers, each having a rib formed on the inner surface thereof, coupled to both sides of a core pack, which makes it possible to prevent resin from flowing into the outer covers when resin molding parting is performed on an upper part of the core pack and thus to reduce defects occurring in the outer covers due to the flow of resin. A lithium rechargeable battery according to an embodiment of the invention includes a core pack having a bare cell and a protective circuit module which is arranged on the top side of the bare cell so as to be electrically connected to the bare cell through lead plates; outer covers covering two short lateral sides of the core pack on which the lead plates are provided; and a resin molding part formed at an upper part of the core pack, the upper part of the core pack includes a portion of each of the outer covers and the protective circuit module.