A notching apparatus for an electrode substrate of a rechargeable battery includes a lower plate assembly provided with a die, an upper plate assembly provided with a punch facing toward the die, interposing the electrode substrate that passes in a first d...

The element (1) has a passage opening (10) arranged in a central part of the element that exhibits thickness (D), where the plate exhibits thickness that ranges between 3.5 to 6 mm. A release region (5) is arranged in a region of the passage opening, and p...

A resin tank includes a tank body (11), a pipe sealing member (12,13) and a pipe (14,15). The tank body reserves a liquid and is made of resin. Also, the tank body has at least a circular hole (19,20) that connects with an inside of the tank body. The pipe...