| 摘要 |
PROBLEM TO BE SOLVED: To provide a group cell, in which dropouts of a laminated battery cell in a direction of thickness can be prevented adequately. SOLUTION: In the group cell 10, the plural battery cells 12, which have been laminated in a direction of the thickness, are integrated by: two lock plates 20, which are set on both ends of the thickness direction of the laminated, plural battery cells 12; and a lock rod 30, which is bridged between the lock plates 20 and which blocks a separation of the two lock plates 20. The cut surface of the plural battery cell 12 in the direction of the thickness is made as a wedge shape. Although the dropout to the thin side of the wedge shape might be attended with a spread of the battery cells 12 in the direction of the lamination due to its wedge-shaped cut surface, the dropout of the battery cells 12 to the thin side of the wedge shape can be prevented because its spread in the lamination direction has been blocked by two lock plates 20 and the lock rod 30 that has been bridged between the lock plates 20.
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