| 摘要 |
PROBLEM TO BE SOLVED: To provide a power storage device capable of facilitating insertion of an electrode assembly into a case.SOLUTION: An electrode assembly 14 of a secondary battery 10 has an opposed part T including a cathode active material layer and an anode active material layer opposed to the cathode active material layer and a non-opposed part 24 extending from the opposed part T in a direction along the surface of the cathode active material layer and having no cathode active material layer. The non-opposed part 24 is gathered up toward opposite ends in laminate direction of the electrode assembly 14, and protrudes in laminate direction than an end face along a direction orthogonal to the laminate direction of the electrode assembly 14 on the gathered side. Furthermore, adhesive tape 25 stuck over the gathered non-opposed part 24 is stuck to the opposed part T on the gathered end face. |
