| 摘要 |
PROBLEM TO BE SOLVED: To improve insertion property into a case and to suppress occurrence of lamination deviation of an electrode assembly.SOLUTION: A case body 13 for storing an electrode assembly includes side walls 13b to 13e erected from four sides of a bottom wall 13a. In side walls 13b and 13c being two facing side walls, and side walls 13d and 13e, wall heights H2 of the side walls 13c and 13e are made longer than wall heights H1 of the side walls 13b and 13d. Thus, wall faces Z1 and Z2 projected from ends b1 and d1 of the side walls 13b and 13d are arranged on the side walls 13c and 13e. When the electrode assembly is stored in the case body 13, the electrode assembly is made to abut on the wall faces Z1 and Z2 of the side walls 13c and 13e. Thus, the electrode assembly is positioned to an opening 14. |
