| 摘要 |
PURPOSE:To enable lithium electrodes to be continuously stamped or cut out by applying a stearate to the blade edge of a stamping punch or a cutter. CONSTITUTION:Lithium is punched with a punch to the blade edge of which a stearate is applied. As a result, lithium does not adhere to or deposit on the blade edge of the punch every time when the punching is performed. A very thin lithium film having metallic luster is formed on the surface of the blade edge of the punch. This film does not grow as times for the punching increase. Owing to such a film, the irregular surface of the blade edge of the punch becomes smooth. Moreover, owing to the lubricating effect of the stearate, the blade edge of the punch and the cut surface of the lithium contact with each other moving smoothly and only a small force is necessary for the punching, thereby enabling continuous stamping of lithium electrodes. |
