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CN-120709514-B - Battery pole core manufacturing equipment, manufacturing method, battery pole core, battery and electric energy equipment

CN120709514BCN 120709514 BCN120709514 BCN 120709514BCN-120709514-B

Abstract

The application relates to the field of battery manufacturing, in particular to battery pole core manufacturing equipment, a manufacturing method, a battery pole core, a battery and electric energy equipment. The battery pole core manufacturing equipment comprises a cutting device and a compression forming device, wherein the cutting device is used for cutting off a pole core lamination material belt so as to form a pole core lamination unit on one side of the cutting device and block the pole core lamination material belt on the other side of the cutting device, and the compression forming device is used for compressing the pole core lamination unit to manufacture a group of battery pole cores. According to the application, the pole core lamination material belt is cut off through the cutting device, so that a pole core lamination unit is formed on one side of the cutting device, the pole core lamination material belt is blocked on the other side of the cutting device, then the pole core lamination unit is compressed through the compression molding device, and a group of battery poles are manufactured through continuous cutting and compounding processes on the pole core lamination material belt, so that the pole core lamination speed can be improved, and the battery core manufacturing efficiency is improved.

Inventors

  • JIN XIN
  • ZHENG ZIJUN
  • LIU DONG
  • FU JIXIAN
  • REN YIXIONG

Assignees

  • 比亚迪股份有限公司
  • 无为弗迪电池有限公司

Dates

Publication Date
20260505
Application Date
20250606

Claims (20)

  1. 1. A battery pole piece manufacturing apparatus, characterized by comprising: a cutting device (100) and a compression molding device (200); The cutting device (100) is used for cutting off the pole piece lamination material belt (3) so as to form a pole piece lamination unit (21) on one side of the cutting device (100) and block the pole piece lamination material belt (3) on the other side of the cutting device (100); The compression molding device (200) is used for compressing the pole core lamination unit (21) to manufacture a group of battery pole cores (19); The cutting device (100) comprises a first cutting clamp (110) and a second cutting clamp (120), wherein the first cutting clamp (110) and the second cutting clamp (120) are oppositely arranged, the first cutting clamp (110) is arranged on one side of the pole core lamination material belt (3), and the second cutting clamp (120) is arranged on the other side of the pole core lamination material belt (3); the first cutting clamp (110) and the second cutting clamp (120) are used for clamping the pole core lamination material belt (3); the first cutting clamp (110) comprises a first clamp (9) and a second clamp (10), and the second cutting clamp (120) comprises a third clamp (7) and a fourth clamp (12); The first clamp (9), the third clamp (7), the fourth clamp (12) and the second clamp (10) are sequentially arranged at intervals along a first direction, the first direction is the transmission direction of the conveying device (1), and the conveying device (1) is used for conveying the pole core lamination material belt (3); the compression molding device (200) comprises: a molding device (13) and a position adjusting device (15); The forming device (13) is positioned on the same side of the fourth clamp (12) and is connected with the fourth clamp (12); The position adjustment means (15) is arranged at the end in the first direction; the forming device (13) is used for driving the fourth clamp (12) to press the pole core lamination unit (21) to one side close to the position adjusting device (15), and/or the position adjusting device (15) is used for pressing the pole core lamination unit (21) to one side close to the forming device (13) so as to manufacture a group of battery pole cores (19).
  2. 2. The battery pole piece manufacturing equipment according to claim 1, characterized in that the cutting device (100) further comprises a cutting mechanism (8), the cutting mechanism (8) being arranged at a first side of the pole piece lamination material strip (3), and the cutting mechanism (8) being located between the third clamp (7) and the fourth clamp (12); The cutting mechanism (8) is used for cutting the pole core lamination material belt (3) from a connecting position to form the pole core lamination unit (21); The pole core lamination material belt (3) comprises a pole core diaphragm (30), a first pole piece (31) and a second pole piece (32), wherein the first pole piece (31) is arranged on one surface of the pole core diaphragm (30), the second pole piece (32) is arranged on the other surface of the pole core diaphragm (30), the first pole piece (31) and the second pole piece (32) are sequentially arranged at intervals, a blank section is arranged between the first pole piece (31) and the second pole piece (32), and the blank section is provided with the connecting part.
  3. 3. The battery pole core manufacturing apparatus according to claim 2, comprising: -a detection device (20), the detection device (20) being arranged between the third clamp (7) and the fourth clamp (12); the detection device (20) is used for identifying and marking the connection point on the pole piece lamination material belt (3).
  4. 4. The battery pole core manufacturing apparatus according to claim 1, comprising: And the blanking device (11) is used for taking out the battery pole core (19).
  5. 5. The battery pole piece manufacturing apparatus according to claim 4, comprising: The sliding chute device (300) is used for supporting and limiting the pole core lamination material belt (3), the pole core lamination unit (21) and the battery pole core (19).
  6. 6. The battery pole core manufacturing equipment according to claim 5, wherein the chute device (300) includes: a first chute means (6) and a second chute means (14), said first chute means (6) being arranged above said second chute means (14); The first chute device (6) is used for limiting the pole core lamination material belt (3), the pole core lamination unit (21) and the battery pole core (19), and the second chute device (14) is used for supporting the pole core lamination material belt (3), the pole core lamination unit (21) and the battery pole core (19).
  7. 7. The battery pole piece manufacturing apparatus of claim 6, comprising: a first pre-folding device (4) and a second pre-folding device (5); The first pre-folding device (4) is arranged on the first side of the pole core lamination material belt (3), the second pre-folding device (5) is arranged on the second side, a plurality of folding plates are arranged on the first pre-folding device (4) and the second pre-folding device (5), and the folding plates are used for pre-folding the pole core lamination material belt (3).
  8. 8. The battery pole piece manufacturing apparatus of claim 7, wherein the plurality of folded sheets are equally spaced apart.
  9. 9. The battery pole piece manufacturing apparatus of claim 8, comprising: the conveying device (1) and the compression roller device (2) are used for driving the pole piece lamination material belt (3) to one side of the cutting device (100).
  10. 10. A method of manufacturing a battery pole core, comprising: Cutting the pole piece lamination material strip (3) through a cutting device (100) to form a pole piece lamination unit (21) on one side of the cutting device (100) and blocking the pole piece lamination material strip (3) on the other side of the cutting device (100), wherein the pole piece lamination material strip (3) is clamped through a first clamp (9), a second clamp (10), a third clamp (7) and a fourth clamp (12), the pole piece lamination material strip (3) is cut through a cutting mechanism (8) to form the pole piece lamination unit (21) on one side of the cutting mechanism (8), and the pole piece lamination material strip (3) is blocked on the other side of the cutting mechanism (8); The pole core lamination units (21) are compressed by a compression molding device (200) to form a group of battery pole cores (19), and the battery pole core lamination units comprise a group of battery pole cores (19) which are formed by driving the fourth clamp (12) by the molding device (13) to extrude the pole core lamination units (21) to the side close to the position adjusting device (15) and/or extruding the pole core lamination units (21) to the side close to the molding device (13) by the position adjusting device (15).
  11. 11. The method according to claim 10, characterized in that the pole core lamination strip (3) comprises a pole core diaphragm (30), a first pole piece (31) and a second pole piece (32), wherein the first pole piece (31) is arranged on one surface of the pole core diaphragm (30), the second pole piece (32) is arranged on the other surface of the pole core diaphragm (30), the first pole piece (31) and the second pole piece (32) are sequentially arranged at intervals, a blank section is arranged between the first pole piece (31) and the second pole piece (32), and a connection part is arranged on the blank section; The pole piece lamination material belt (3) is cut off through a cutting mechanism (8), and the pole piece lamination material belt comprises: -cutting the strip of pole core laminations (3) from the junction by means of the cutting mechanism (8) to form the pole core lamination unit (21).
  12. 12. The method according to claim 11, characterized in that said cutting of said strip of pole core laminations (3) from said connection by said cutting mechanism (8) to form said pole core lamination unit (21) comprises: the connection on the pole piece lamination material strip (3) is identified by a detection device (20).
  13. 13. Method according to claim 11, characterized in that said cutting of said strip of pole core laminations (3) from said connection by said cutting mechanism (8) to form said pole core lamination unit (21) comprises: And continuously clamping the pole core lamination material belt (3) through the first clamp (9) and the third clamp (7), and withdrawing the second clamp (10) and the fourth clamp (12) to clamp the pole core lamination material belt (3).
  14. 14. The method according to claim 10, wherein the clamping of the pole core lamination strip (3) by means of a first clamp (9), a second clamp (10), a third clamp (7) and a fourth clamp (12) comprises: The first clamp (9) and the second clamp (10) move towards the direction of the pole core lamination material belt (3), and meanwhile, the third clamp (7) and the fourth clamp (12) move towards the direction of the pole core lamination material belt (3) so as to clamp the pole core lamination material belt (3) together.
  15. 15. The method according to claim 11, characterized in that before said compressing said pole core lamination units (21) by means of a compression molding device (200) to make a group of battery poles (19), it comprises: The first clamp (9) and the third clamp (7) continue to clamp the pole core lamination material belt (3), and the second clamp (10) and the fourth clamp (12) withdraw from clamping the pole core lamination material belt (3).
  16. 16. The method according to claim 10, wherein after the compression of the pole core lamination unit (21) by a compression molding device (200) to make a set of battery pole cores (19), comprising: And taking out the battery pole core (19) through a blanking device (11).
  17. 17. The method according to claim 10, comprising: The forming device (13) drives the fourth clamp (12) to exit from the extrusion working state, and the position adjusting device (15) moves towards the direction of the pole core lamination material belt (3) until the position adjusting device (15) abuts against the pole core lamination material belt (3).
  18. 18. Method according to claim 17, characterized in that after the abutment of the position adjustment device (15) against the pole piece lamination strip (3) it comprises: the first clamp (9) and the third clamp (7) are withdrawn from clamping the pole core lamination material belt (3).
  19. 19. A method according to claim 10, wherein the severing of the pole core lamination web (3) by a severing device (100) to form a pole core lamination unit (21) on one side of the severing device (100) and before blocking the pole core lamination web (3) on the other side of the severing device (100), the method comprises: the pole piece lamination material belt (3) is pre-folded through a first pre-folding device (4) and a second pre-folding device (5).
  20. 20. Method according to claim 19, characterized in that before the prefolding of the pole piece web (3) by means of a first prefolding device (4) and a second prefolding device (5), the method comprises: The pole piece lamination material belt (3) is driven to one side of the first pre-folding device (4) and one side of the second pre-folding device (5) through the conveying device (1) and the pressing roller device (2).

Description

Battery pole core manufacturing equipment, manufacturing method, battery pole core, battery and electric energy equipment Technical Field The application relates to the technical field of vehicle-mounted display, in particular to battery pole core manufacturing equipment, a manufacturing method, a battery pole core, a battery and electric energy equipment. Background With the development of new energy equipment such as new energy automobiles and new energy machines, the application of batteries is becoming wider and wider. In the field of batteries such as lithium batteries, lamination processes are commonly used to manufacture pole groups for battery cells when manufacturing such pole groups. However, in the prior art, when lamination is performed, the negative electrode plate is laminated, then the diaphragm is coated on the negative electrode plate, then the positive electrode plate is laminated, and then the diaphragm is coated on the positive electrode plate. The lamination unit of the lamination mode is a single pole piece or a single Zhang Gemo, and the lamination method is low in speed, so that the manufacturing efficiency of the battery cell is low. Disclosure of Invention The embodiment of the application provides a method for manufacturing a battery pole core, equipment, a battery pole core, a battery and electric energy equipment, the first pole piece and the second pole piece of the pole piece lamination material belt are cut off and folded to form a battery pole piece, so that the pole piece lamination speed can be improved, and the battery core manufacturing efficiency can be improved. In order to achieve the above object, according to a first aspect of the present application, there is provided a battery pole core manufacturing apparatus comprising: a cutting device and a compression molding device; the cutting device is used for cutting the pole core lamination material belt to form a pole core lamination unit on one side of the cutting device and blocking the pole core lamination material belt on the other side of the cutting device; the compression molding device is used for compressing the pole core lamination unit to manufacture a group of battery pole cores. In some embodiments, the severing device comprises a first severing clamp and a second severing clamp, the first severing clamp and the second severing clamp being disposed opposite one another; the first cutting clamp and the second cutting clamp are used for clamping the pole piece lamination material belt. In some embodiments, the first severing clamp comprises a first clamp and a second clamp, the second severing clamp comprising a third clamp and a fourth clamp; the first clamp, the third clamp, the fourth clamp and the second clamp are arranged at intervals along a first direction in sequence. In some embodiments, the cutoff clamp further comprises a cutoff mechanism disposed on a first side of the pole core lamination strip, the cutoff mechanism being located between the third clamp and the fourth clamp; the cutting mechanism is used for cutting the pole core lamination material belt from the joint to form the pole core lamination unit; The pole core lamination material belt comprises a pole core diaphragm, a first pole piece and a second pole piece, wherein the first pole piece is arranged on one surface of the pole core diaphragm, the second pole piece is arranged on the other surface of the pole core diaphragm, the first pole piece and the second pole piece are sequentially arranged at intervals, a blank section is arranged between the first pole piece and the second pole piece, and the blank section is arranged at the joint. In some embodiments, the battery pole piece manufacturing equipment includes a detection device disposed between the third clamp and the fourth clamp; the detection device is used for identifying and marking the connection part on the pole piece lamination material belt. In some embodiments, the compression molding device comprises a molding device and a position adjusting device, wherein the molding device is positioned on the same side of the fourth clamp and is connected with the fourth clamp; the position adjusting device is arranged at the tail end along the first direction; The forming device is used for driving the fourth clamp to extrude the pole core lamination unit to one side close to the position adjusting device, and/or the position adjusting device is used for extruding the pole core lamination unit to one side close to the forming device so as to manufacture a group of battery pole cores. In some embodiments, the battery pole core manufacturing equipment comprises a blanking device for taking out the battery pole core. In some embodiments, the battery pole piece manufacturing equipment includes a chute device for supporting and restraining the pole piece lamination tape, the pole piece lamination unit, and the battery pole piece. In some embodiments, the chute apparatus comprises a fir