Abstract: An apparatus for manufacturing a secondary battery includes: an index table configured to receive a secondary battery cell, the secondary battery cell including an electrode assembly, a can accommodating the electrode assembly, and an electrode tab between the electrode assembly and the can to electrically connect the electrode assembly to the can; a laser scanner configured to irradiate laser onto an outer surface of the can to weld the electrode tab to the can; and a controller configured to variably control the laser scanner according to an operation of the index table.

Abstract: A battery pack includes: a core pack comprising a battery cell including a plurality of unit battery cells electrically connected to each other, a first electrode tab, and a second electrode tab; a case comprising a lower case accommodating the core pack therein and having an opening at a side thereof to insert the core pack therethrough, and an upper case closing the opening and including a first terminal and a second terminal electrically connected to the first electrode tab and the second electrode tab, respectively; and an elastic body between the core pack and the case to elastically support an exterior of the core pack.

Abstract: A battery pack has a case which includes accommodating areas for battery cells located between and printed circuit boards (PCBs). Each PCB has openings that correspond to respective accommodating areas. The battery pack also has tabs connected to the battery cells through the openings in the PCBs. First ends of pattern portions of a first PCB are connected to respective tabs of the first PCB, and second ends of the pattern portions are at a first pattern collecting portion in the case. First ends of pattern portions of a second PCB are connected to respective tabs corresponding to the second PCB, and second ends of the pattern portions of the second PCB are at a second pattern collecting portion in the case. A battery management system is connected to the batteries through the first and second PCBs.

Abstract: A battery pack includes: a core pack comprising a battery cell including a plurality of unit battery cells electrically connected to each other, a first electrode tab, and a second electrode tab; a case comprising a lower case accommodating the core pack therein and having an opening at a side thereof to insert the core pack therethrough, and an upper case closing the opening and including a first terminal and a second terminal electrically connected to the first electrode tab and the second electrode tab, respectively; and an elastic body between the core pack and the case to elastically support an exterior of the core pack.

Abstract: A battery module includes a plurality of unit batteries, a holder accommodating the unit batteries and including a pin extending from the holder, a protective circuit module electrically coupled to the plurality of unit batteries, and a coupling member coupled to the pin to fix the protective circuit module to the holder. The holder may include a boss supporting the protective circuit module. The protective circuit module may define a coupling opening configured to receive the pin.

Abstract: Provided is battery pack, including a plurality of battery cells that and a case covering the plurality of battery cells, wherein at least one drainage hole is formed on a bottom of the lower case, that includes a first region and a second region, the first region being a region from an inner surface to a predetermined depth in a thickness direction of the bottom of the lower case and the second region being a region from where the first region ends to an outer surface from the thickness direction of the bottom of the lower case, wherein the first region includes a first tiling portion formed tilted such that the drainage hole becomes smaller, grooves formed at regular intervals along a circumference of the drainage hole from where the first tilting portion ends to the outer surface of the bottom of the lower case and a foreign substance blocking portion formed on a same plane as the outer surface of the lower case.

Abstract: A battery pack has a case which includes accommodating areas for battery cells located between and printed circuit boards (PCBs). Each PCB has openings that correspond to respective accommodating areas. The battery pack also has tabs connected to the battery cells through the openings in the PCBs. First ends of pattern portions of a first PCB are connected to respective tabs of the first PCB, and second ends of the pattern portions are at a first pattern collecting portion in the case. First ends of pattern portions of a second PCB are connected to respective tabs corresponding to the second PCB, and second ends of the pattern portions of the second PCB are at a second pattern collecting portion in the case. A battery management system is connected to the batteries through the first and second PCBs.

Abstract: Provided is battery pack, including a plurality of battery cells that and a case covering the plurality of battery cells, wherein at least one drainage hole is formed on a bottom of the lower case, that includes a first region and a second region, the first region being a region from an inner surface to a predetermined depth in a thickness direction of the bottom of the lower case and the second region being a region from where the first region ends to an outer surface from the thickness direction of the bottom of the lower case, wherein the first region includes a first tiling portion formed tilted such that the drainage hole becomes smaller, grooves formed at regular intervals along a circumference of the drainage hole from where the first tilting portion ends to the outer surface of the bottom of the lower case and a foreign substance blocking portion formed on a same plane as the outer surface of the lower case.

Abstract: A secondary battery pack is disclosed. In one aspect, the secondary battery pack includes a first cell holder accommodating a plurality of first unit cells therein and a second cell holder accommodating a plurality of second unit cells therein. The first cell holder includes a plurality of fixing ribs protruding therefrom and the second cell holder includes a plurality of second fixing ribs protruding therefrom. The first and second fixing ribs are arranged in a line. The secondary battery pack also includes at least one connection tab electrically connecting the first and second unit cells. The connection tab has a pair of holes respectively accepting the first and second fixing ribs.

Abstract: A battery module includes a plurality of unit batteries, a holder accommodating the unit batteries and including a pin extending from the holder, a protective circuit module electrically coupled to the plurality of unit batteries, and a coupling member coupled to the pin to fix the protective circuit module to the holder. The holder may include a boss supporting the protective circuit module. The protective circuit module may define a coupling opening configured to receive the pin.

Abstract: A rechargeable battery pack for improving watertight performance for unit cells and a protection circuit module by draining water having permeated into a case while allowing inflow and outflow of cooling air into/out of the case. The rechargeable battery pack includes at least one unit cell including a rechargeable battery, and a case for supporting the unit cell and receiving the same, wherein the case includes a bottom, a reinforcing rib protruded in the bottom, and a drainage hole formed in the bottom beneath the reinforcing rib.