Patent ID: 9515302
Filing Date: 2016-12-06
CPC Classification: H01M,Y02E

Claim Text:
1. A rechargeable battery pack comprising: a frame accommodating a unit cell comprising a rechargeable battery; a protection circuit module electrically connected to the unit cell and in the frame; and a pair of cases coupled to opposite sides of the frame and accommodating the unit cell and the protection circuit module, wherein the frame has coupling grooves in the sides and insertion grooves continuously extending along the sides, the coupling grooves being alternately located in a top portion and a bottom portion of the sides of the frame along a height of the frame and being offset from each other along a first direction perpendicular to the height of the frame, the insertion grooves being configured for insertion of outer edges of the cases and open to the coupling grooves, and wherein each of the pair of cases comprises coupling protrusions, the coupling protrusions of each case being alternately coupled to the coupling grooves.