| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery case in which any one of the enhancement of strength and rigidity of a lower case compared with prior art, or the compaction compared with prior art can be satisfied.SOLUTION: In a battery pack 10 having a laminate 20 of a plurality of square batteries 21, and a case 30 for housing the laminate 20, the case 30 includes a lower case 40 for fixing and supporting the laminate 20, and an upper case 50 to be attached to the lower case 40. The lower case 40 is composed of a heat pipe. |
