阅读说明：本技术 辊压装置及锂电池的制造方法 (Rolling device and manufacturing method of lithium battery ) 是由 徐煜欣 于 2019-12-02 设计创作，主要内容包括：本发明涉及材料加工技术领域,提出了一种辊压装置及锂电池的制造方法,辊压装置包括：第一压辊,第一压辊包括多个凹槽和辊压部,凹槽沿第一压辊的周向方向延伸,多个凹槽沿第一压辊的轴向方向间隔设置,以在相邻两个凹槽之间形成辊压部；其中,第一压辊为一体结构。本发明的辊压装置通过在第一压辊上设置有用于与带材的留白区相对设置的凹槽,可以避免第一压辊压到带材的留白区,从而防止了带材在受辊压过程中出现断带的问题。(The invention relates to the technical field of material processing, and provides a rolling device and a manufacturing method of a lithium battery, wherein the rolling device comprises: the first pressing roller comprises a plurality of grooves and a pressing portion, the grooves extend along the circumferential direction of the first pressing roller, and the grooves are arranged at intervals along the axial direction of the first pressing roller so as to form the pressing portion between every two adjacent grooves; wherein, the first press roll is of an integrated structure. According to the rolling device, the first pressing roller is provided with the groove which is used for being arranged opposite to the blank leaving area of the strip, so that the blank leaving area of the strip can be prevented from being pressed by the first pressing roller, and the problem of strip breakage in the rolling process of the strip is prevented.)

1. A rolling device, characterized in that it comprises:

a first pressing roller (20), wherein the first pressing roller (20) comprises a plurality of grooves (21) and roller pressing parts (22), the grooves (21) extend along the circumferential direction of the first pressing roller (20), and the grooves (21) are arranged at intervals along the axial direction of the first pressing roller (20) so as to form the roller pressing parts (22) between two adjacent grooves (21);

wherein the first press roll (20) is of an integral structure.

2. A roller press device according to claim 1, wherein the groove wall of the groove (21) and the outer surface of the roller press portion (22) are in arc transition.

3. Roller press device according to claim 1, characterized in that at least one of the recesses (21) is a polygonal, an arc or a triangular recess.

4. A roller press device according to claim 1, characterized in that the roller press (22) is at least one, and the roller press (22) is located between two adjacent roller presses (22).

5. A roller press apparatus according to claim 1, wherein two of said grooves (21) of said plurality of grooves (21) located at the end of said first pressing roller (20) are polygonal grooves, arc-shaped grooves, triangular grooves or cutouts intersecting the end surface of said first pressing roller (20).

6. A roller device according to claim 1, characterized in that the first roller (20) is formed in one piece.

7. A roller device according to any one of claims 1 to 6, characterized in that the first rollers (20) are arranged in pairs, the two first rollers (20) of a pair being arranged opposite each other.

8. The rolling device according to any one of claims 1 to 6, characterized by further comprising:

a second press roller, the first press roller (20) being disposed opposite the second press roller;

wherein the second press roll is a cylindrical press roll.

9. A method of manufacturing a lithium battery, comprising:

coating electrode materials on the foil to form a coating area and a blank area which are spaced;

rolling the electrode material coated on the foil using the rolling device according to any one of claims 1 to 8.

10. The method of manufacturing a lithium battery according to claim 9, wherein a length of the rolled portion is greater than a width of the coating region so that the rolled portion rolls the entire coating region.

11. The method of manufacturing a lithium battery according to claim 9, wherein the length of the rolled portion is a, the width of the coating region is b, 1mm + b ≦ a ≦ 2mm + b;

wherein, the two sides of the coating area are provided with tab glue, the width of the tab glue is c, and c is more than or equal to 1mm and less than or equal to 1.5 mm.