| 摘要 |
[Problem] To provide a battery pack that can suppress deterioration of battery characteristics, improve long-term reliability, and also prevent incorrect installation or the like of the battery pack. [Solution] A battery pack (700) of the present invention is covered by a rectangular laminate film outer packaging material provided with a melt-adhesion section on the periphery, and comprises a battery cell having a positive electrode pull-out tab and a negative electrode pull-out tab pulled out from the laminate film outer packaging material, and a case (300) having a housing section that houses the battery cell, singly, wherein the battery pack (700) is characterized in that the housing section is broader than the outer peripheral edge of the laminate film outer packaging material, opposing protrusions opposing are formed inside the case (300) such that the melt-adhesion section of the laminate film outer packaging material is disposed therebetween, two grip parts (310, 320) are formed on the outside of the case (300), and different rugged patterns (315, 325) are formed on the two grip parts. |
