| 摘要 |
PROBLEM TO BE SOLVED: To provide a restriction structure for a lamination type battery that can absorb dispersion in tolerance of the lamination type battery while uniformly pressing the lamination type battery.SOLUTION: A collar 14 extending in a lamination direction Y supports a part of the outer peripheral surface of a bolt 15 extending in the lamination direction Y. Thus, the collar 14 can suppress deformation of the bolt 15 and deformation of end plates 13 without obstruction of inward press of the bolt 15 by the collar 14. Accordingly, the parallelism of the pair of end plates 13 can be kept by the bolt 15 and the collar 14. Since the collar 14 does not obstruct the inward press of the bolt 15, the bolt 15 makes the pair of end plates approach to each other, whereby a lamination type battery 11 can be uniformly pressed. |
