Tab heightening module, wrinkle removing tension roller and roller press

The invention discloses a tab heightening module, a wrinkle removing tension roller and a roller press, and relates to the field of battery production equipment. The tab heightening module comprises a heightening sheet and a locking mechanism. The heightening piece comprises two free ends in the length direction. The locking mechanism is detachably connected with the two free ends, and the end faces of the two free ends draw close to each other and are in butt joint, so that the heightening pieces form an annular cushion. Wherein the peripheral surface of the annular pad is used for abutting against the tab. The tab heightening module disclosed by the invention can prevent the tab from generating wrinkles, is applied to a wrinkle removal tension roller, does not leave glue marks on the roller shaft when the tab heightening module is disassembled, is beneficial to cleaning the roller shaft, and is more convenient and quicker to disassemble, assemble and adjust compared with the prior art, so that the working e