This equipment is suitable for the stacking process of lithium-ion battery electrodes. The equipment adopts a tension roller structure design, automatic constant tension control of the coil separator, and a motor driven left and right movement to achieve a zigzag stacking. This reciprocation realizes the stacking assembly of the entire battery cell. The separator discharge adopts constant tension, and there is an electrode automatic correction function during the discharge process, and the discharge is neat and consistent; it has the characteristics of high stacking efficiency and high stacking precision. Different electrode sizes can be realized by adjusting the fixture, which is suitable for the research and development and sample production of stacking lithium-ion batteries.