Battery pack with reinforcement member

The invention relates to a battery pack having a strength-reinforced housing that accommodates a plurality of battery cells. The battery pack (100) comprises a plurality of battery cells (170) and a housing (110) configured to accommodate the plurality of battery cells (170) therein. A reinforcement member (180) is provided coupled to the housing (110), extending along and contacting different outer surfaces of the housing (110) to reinforce the housing.