| 摘要 |
There is provided an electric storage element and a production method thereof. The electric storage element has excellent air tightness at a portion connected with an external terminal and realizes high assembling performance, even in a simple configuration. The electric storage element includes casings, an external terminal that has a surface exposed outward from one of the casings, a current collector that is provided inside the casings and is connected to the external terminal, and an electrode assembly that is provided inside the casings and is connected to the current collector. The casings are provided with a through hole. The external terminal includes a flange in contact with an outer surface of one of the casings, and a first shaft that extends from the flange to be inserted into the through hole in one of the casings and be welded over the entire periphery.
|
