| 摘要 |
A battery pack including a battery, and a case for housing the battery, the case including: a top surface plate; a bottom surface plate; side surface plates defining the space therebetween; first connecting portions connecting the top surface plate and the side surface plates; and second connecting portions connecting the bottom surface plate and the side surface plates, wherein at least one group of the first connecting portions and the second connecting portions has a thick portion or a thin portion. The thick portion or the thin portion may be: provided entirely across the edge-lines formed by the first connecting portions or by the second connecting portions; provided partially along the edge-line formed thereby; or provided intermittently along the edge-line formed thereby. |
