Patent ID: 9257689
Filing Date: 2016-02-09
CPC Classification: H01M,Y02E

Claim Text:
1. A battery pack, comprising: At least one bare cell, each having a pair of long side surfaces opposite to each other, and short side surfaces that connect the long side surfaces; and an exterior member composed of an adhesive layer provided adjacent to the at least one bare cell while surrounding a portion of the at least one bare cell, and a base material layer provided on the adhesive layer, and wherein the exterior member comprises one or more first surfaces that face the long side surfaces of the at least one bare cell, and one or more second surfaces connected to the one or more first surfaces so as to correspond to the short side surfaces of the at least one bare cell that extends substantially perpendicular to the one or more first surfaces, wherein the adhesive layer has one or more openings therein, and the opening is provided adjacent to a portion at which the long and short side surfaces of the at least one bare cell come in contact with each other so that the opening is formed on the one or more first surfaces interposed between the adhesive of the one or more first surfaces and the adhesive of the one or more second surfaces, wherein the opening is co-planar with the adhesive of the one or more first surfaces and is extending in a direction substantially perpendicular to the one or more first surfaces.