| 摘要 |
PROBLEM TO BE SOLVED: To enhance productivity of a power storage element by quickly injecting an electrolyte.SOLUTION: A nonaqueous electrolyte secondary battery 1 includes a power generating element 111 and a storage container which stores the power generating element 111 and has a container body 110 and a lid 120. In the storage container, a liquid injection passage 11 penetrating a rear surface 120d from a front surface 120c of the storage container is formed. The position of an opening 10b on a rear surface of the liquid injection passage 11 is moved from a position facing an opening 10a of the liquid injection passage 11, in a direction matching or substantially matching a direction in which a distance between the rear surface 120d as one surface of the storage container and the surface of the power generating element 111 in a direction perpendicular to the rear surface 120d becomes larger. |
