Patent ID: 8354179

Claim:
A secondary battery, comprising: a battery body having a pair of horizontal sides parallel to each other, a plurality of vertical sides to connect peripheries of the pair of horizontal sides; and a side case, comprising: a first side case having a horizontal portion disposed to cover a first area of 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 any one vertical side of the battery body adjacent to the one of the horizontal sides of the battery body, a second side case having a horizontal portion, in which a plurality of terminal holes is formed, disposed to cover a second area of the 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 a vertical side of the battery body opposite to the any one vertical side of the battery body covered by the vertical portion of the first side case; and a guide member disposed between the battery body and the horizontal portions of the first and second side cases of the side case, and a protective circuit board disposed between the guide member and the horizontal portions of the first and second side cases and electrically connected to the battery body; wherein the guide member comprises guide rails and the horizontal portions of the first and second side cases have moving guide portions to couple slidably the guide member to the first and second side cases.