ROLL PRESS DEVICE

A rolling apparatus (100) includes a roller assembly (110) and a power source. The roller assembly (110) includes four rollers (1 10a) rotatable around their respective axes, where the four rollers (110a) are arranged side by side in pairs along a first direction (X) and a second direction (Y) intersected with each other, and two rollers (110a) arranged side by side define a roll gap therebetween. The power source drives two rollers (110a) arranged diagonally to rotate in a same direction around their axes. Two roll gaps defined by one of the two rollers (110a) arranged diagonally and the two rollers (110a) arranged side by side therewith are used for rolling a first electrode plate (200) twice, and two roll gaps defined by the other one of the two rollers arranged diagonally and the two rollers (110a) arranged side by side therewith are used for rolling a second electrode plate (300) twice. In the rolling apparatus, the four rollers form strip moving routes for separately rolling the first electrode plate and the second electrode plate twice, such that each of the electrode plates can be continuously rolled twice, helping to reduce the cost of double rolling and improving the production efficiency of the rolling apparatus.