| 摘要 |
A winding-type energy storage device is provided to prevent electrical property degradation or damage of product by preventing shaking of a winding device by a pressurization part. A winding-type energy storage device comprises a case(10) and a winding device. The winding device is mounted on the case. A terminal plate(30) is arranged on a top of the winding device. An external terminal(40) of lug or screw type is coupled in the terminal plate. The winding device and the external terminal are connected by a tap terminal. The terminal plate is fixed in the case by curing. A pressurization part(50) is formed in a wall or a bottom of the case by pressing or embossing, prevents shaking of the winding device, and is formed into a ring shape according to a circumference of the wall of the case.
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