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, which can secure the strength of an outer case, minimize the thickness over the whole outer case and ensure a battery capacity of the battery pack, by forming a portion of a main wall of the outer case with a metal plate. The battery pack includes a core pack, a first case, and a second case. The first case has a periphery including a first resin molding part, and is configured to cover a first surface of the core pack. The second case has a periphery including a second molding part, and is configured to cover a second surface of the core pack. The first and second cases are connected with each other by a weld of the first and second molding parts.

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 includes a battery cell including a cell tab, a protective circuit board including an internal terminal coupled to the cell tab and a positive temperature coefficient (PTC) device connected to the internal terminal, and a heat transfer member contacting the cell tab. The heat transfer member may be attached to the cell tab as well as the PTC device. Heat generated in the battery cell, the cell tab, and the internal terminal is quickly transferred to the PTC device through the heat transfer member to quickly interrupt current flow when the battery cell is exposed to high temperature. Therefore, the battery pack may have the improved stability and reliability.

Abstract: A card battery to charge and/or discharge an external electronic apparatus, the card battery including: a card battery body including a bare cell and a first substrate electrically connected to the bare cell; and a connector including a protection circuit module electrically connected to the card battery body.

Abstract: A protective circuit module and a rechargeable battery including the same, the protective circuit module including a circuit board main body having an electrode terminal tab configured to electrically connect to an electrode terminal of a bare cell, a chip-type PTC device on the circuit board main body, and a heat transfer member connected to the chip-type PTC device and the electrode terminal tab.

Abstract: A secondary battery secondary battery includes a bare cell having an electrode terminal, and a protective circuit module having a circuit board and a lead plate. The protective circuit module is electrically connected to the bare cell such that the electrode terminal and the circuit board are connected to each other through the lead plate. The lead plate includes a first plate mounted on the circuit board, and a second plate foldably connected to the first plate.

Abstract: Disclosed are a polymer battery pack and a method for manufacturing the same. In the polymer battery pack, a bare cell and a protection circuit member are separated from each other by a holder frame such that the bare cell is coupled to the inner side of the holder frame and the protection circuit member is coupled to the outer side of the holder frame. The method for manufacturing the polymer battery pack includes: coupling a bare cell to the inner side of a holder frame; electrically connecting the bare cell to a protection circuit member; coupling the protection circuit module to the holder frame; coupling a cover to the holder frame; attaching an external label to the cover; attaching a water sensitive paper to the cover; and performing a function test for the battery.

Abstract: A battery pack includes a bare cell; a circuit module on the bare cell and electrically connected to the bare cell; a loop antenna attached to the bare cell and electrically connected to the circuit module; and a PTC device on the loop antenna and electrically connected to the circuit module.

Abstract: A secondary battery, sheathes a protection circuit board with a separate cover, connects the sheathed protection circuit board to a bare cell, and executes a molding or hard pack operation with a molding resin member in a space between the protection circuit board and the bare cell. The secondary battery may be constructed with a rechargeable bare cell, a protection circuit board supporting a protection circuit electrically connected to the bare cell and an external terminal, a board exterior cover adhering to the protection circuit board and the board exterior cover exposing the external terminal, and a first lead plate and a second lead plate that electrically connect the bare cell to the protection circuit board.

Abstract: A battery pack is provided. The battery pack includes: a core pack including a bare cell, and a protective circuit member attached on a side of the bare cell; a housing case for covering at least a portion of the protective circuit member of the core pack, and where a connection part adapted to be connected with an outer electronic appliance is disposed; and a resin-molding part for combining the core pack and the housing case by contacting at least a portion of the core pack and the housing case.

Abstract: A secondary battery having a porous filling member that occupies a portion of a molding space between a bare cell and a protective circuit board. The presence of the filling member makes it possible to uniformly apply a molding resin into the molding space and to reduce defects due to thickness irregularity of a mold or a surface defect thereof. The secondary battery includes a bare cell, a protective circuit module including a protective circuit arranged on a protective circuit board and a plurality of electrical connection members electrically connecting the protective circuit board to the bare cell, a filling member arranged between the bare cell and the protective circuit board and a mold covering the electrical connection members and the filling member.

Abstract: A secondary battery secondary battery includes a bare cell having an electrode terminal, and a protective circuit module having a circuit board and a lead plate. The protective circuit module is electrically connected to the bare cell such that the electrode terminal and the circuit board are connected to each other through the lead plate. The lead plate includes a first plate mounted on the circuit board, and a second plate foldably connected to the first plate.

Abstract: A battery pack includes a battery cell including a cell tab, a protective circuit board including an internal terminal coupled to the cell tab and a positive temperature coefficient (PTC) device connected to the internal terminal, and a heat transfer member contacting the cell tab. The heat transfer member may be attached to the cell tab as well as the PTC device. Heat generated in the battery cell, the cell tab, and the internal terminal is quickly transferred to the PTC device through the heat transfer member to quickly interrupt current flow when the battery cell is exposed to high temperature. Therefore, the battery pack may have the improved stability and reliability.

Abstract: An external case for secondary batteries, and a secondary battery using the external case, in which the covering surfaces for the lower surface and side surfaces of a pouch type core pack are joined to prevent unfolding due to the resilience of the material. The external case includes: a base covering the lower surface of the pouch type cell, a pair of sidewalls joined to two opposing longer edges of the base to respectively form single linear boundaries, and covering two broad side surfaces of the pouch type cell, and skirts extending from two longer edges of each of the sidewalls, and covering two narrow side surfaces of the pouch type cell. The base, sidewalls, and skirts are all formed of a metallic material.

Abstract: A card battery to charge and/or discharge an external electronic apparatus, the card battery including: a card battery body including a bare cell and a first substrate electrically connected to the bare cell; and a connector including a protection circuit module electrically connected to the card battery 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 includes a bare cell; a circuit module on the bare cell and electrically connected to the bare cell; a loop antenna attached to the bare cell and electrically connected to the circuit module; and a PTC device on the loop antenna and electrically connected to the circuit module.

Abstract: A protective circuit module and a rechargeable battery including the same, the protective circuit module including a circuit board main body having an electrode terminal tab configured to electrically connect to an electrode terminal of a bare cell, a chip-type PTC device on the circuit board main body, and a heat transfer member connected to the chip-type PTC device and the electrode terminal tab.

Abstract: Disclosed are a polymer battery pack and a method for manufacturing the same. In the polymer battery pack, a bare cell and a protection circuit member are separated from each other by a holder frame such that the bare cell is coupled to the inner side of the holder frame and the protection circuit member is coupled to the outer side of the holder frame. The method for manufacturing the polymer battery pack includes: coupling a bare cell to the inner side of a holder frame; electrically connecting the bare cell to a protection circuit member; coupling the protection circuit module to the holder frame; coupling a cover to the holder frame; attaching an external label to the cover; attaching a water sensitive paper to the cover; and performing a function test for the battery.