CN-122000277-A - Multi-piece composite unit sheet-making device, lamination system and pole group manufacturing method

CN122000277ACN 122000277 ACN122000277 ACN 122000277ACN-122000277-A

Abstract

The application relates to the technical field of batteries, in particular to a multi-piece composite unit tabletting device, a lamination system and a pole group manufacturing method, wherein the multi-piece composite unit tabletting device comprises a composite component; the device comprises a first blanking mechanism, a film covering assembly, a second blanking mechanism, an insulating film cutter and a composite assembly, wherein the first blanking mechanism is arranged at intervals with the composite assembly, the film covering assembly is arranged between the first blanking mechanism and the composite assembly, the second blanking mechanism is arranged at intervals with the composite assembly, and the insulating film cutter is arranged at intervals with the composite assembly. The multi-sheet composite unit sheet-making device provided by the application can make a plurality of first pole pieces and a plurality of second pole pieces at a time in a sheet-making stage, thereby obviously improving sheet-making efficiency, providing sufficient pole piece storage for subsequent operations such as lamination, hot pressing and the like, further improving the production efficiency of the pole group making equipment, realizing the multiple increase of the yield without improving the running speed of each processing flow, and obviously improving the running efficiency of the pole group making equipment.

Inventors

Request for anonymity
Request for anonymity
Request for anonymity
Request for anonymity
Request for anonymity

Assignees

蜂巢能源科技股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260212

Claims (10)

1. A multi-piece composite unit production apparatus, comprising: A composite component; The first blanking mechanism is arranged at intervals with the composite component and is used for supplying a first multi-chip unit to the composite component; The film covering assembly is arranged between the first blanking mechanism and the composite assembly and is used for attaching an insulating material belt to the first multi-chip unit before the first multi-chip unit enters the composite assembly; The second blanking mechanism is arranged at intervals with the composite component and is used for supplying a second multi-chip unit to the composite component; And the insulating film cutter is arranged at intervals with the composite component.
2. The multi-piece composite unit production apparatus of claim 1, wherein the first blanking mechanism comprises: A first pole roll blanking member; The first slitting device is arranged at intervals with the first pole roll blanking member, and the first pole roll blanking member is used for conveying a first pole roll to the first slitting device; The first cutting device is arranged at intervals with the first slitting device along the conveying direction of the first pole roll, and the first cutting device cuts the first pole roll along the width direction of the first pole roll.
3. The multi-piece composite unit production apparatus of claim 2, wherein the second blanking mechanism comprises: a second roll blanking member; the second slitting device is arranged at intervals with the second electrode roll blanking member, and the second electrode roll blanking member is used for conveying a second electrode roll to the second slitting device; The second cutting device is arranged at intervals with the second slitting device along the conveying direction of the second pole roll, and the second cutting device cuts the second pole roll along the width direction of the second pole roll.
4. A multi-piece composite unit production apparatus according to claim 3, further comprising: The electrostatic platform is arranged at the inlet of the composite component; the first carrying device is arranged between the first cutting device and the electrostatic platform; The second carrying device is arranged between the second cutting device and the electrostatic platform.
5. The multi-piece composite unit production apparatus of claim 2, wherein the film-coating assembly comprises: The first film coating component comprises an insulating material belt, the first film coating component and the first pole roll blanking component are arranged at intervals, and the first film coating component is used for paving the insulating material belt on one side surface of the first pole roll passing through the first cutting device; The second film coating component comprises another insulating material belt, the second film coating component and the first pole roll blanking component are arranged at intervals, and the second film coating component is used for paving the insulating material belt on the surface of the other side of the first pole roll passing through the first cutting device.
6. A lamination system comprising the multi-piece composite unit production apparatus of any one of claims 1 to 5, the lamination system further comprising: The lamination device is arranged at intervals with the insulating film cutter; the hot pressing device is arranged at intervals with the lamination device; and the pole component cutting device is arranged at intervals with the hot pressing device.
7. The manufacturing method of the pole group is characterized by comprising the following steps of: S100, manufacturing a first multi-chip unit, and conveying the first multi-chip unit to a composite assembly along a first direction; S200, the first multi-chip unit comprises a first surface and a second surface which are distributed along a third direction, and insulating material strips are respectively attached to the first surface and the second surface; s300, manufacturing a second multi-piece unit, conveying the second multi-piece unit to the composite assembly along the first direction, and compositing the first multi-piece unit and the second multi-piece unit in the composite assembly to form a multi-piece composite material belt; s400, cutting the multi-piece composite material belt into multi-piece composite units which are distributed at intervals along the first direction; stacking a plurality of the plurality of composite units one by one along the third direction; Manufacturing a double-piece composite unit L, and finally stacking a layer of double-piece composite units on the stacked multi-piece composite units to manufacture a multi-piece pole group; s500, dividing the plurality of pole groups into monopole groups which are distributed at intervals along the second direction.
8. The pole group manufacturing method according to claim 7, wherein the step S100 includes: S101, releasing a first pole roll along the first direction, dividing the first pole roll into first pole roll material belts which are arranged at intervals along the second direction, and cutting the first pole roll material belts along the third direction to obtain the first multi-piece unit, wherein the first multi-piece unit comprises a first pole piece.
9. The pole group manufacturing method according to claim 8, wherein the step S300 includes: S301, releasing a second pole roll along the first direction, dividing the second pole roll into second pole roll material belts which are arranged at intervals along the second direction, and cutting the second pole roll material belts along the third direction to obtain a second multi-piece unit, wherein the second multi-piece unit comprises a second pole piece with the polarity opposite to that of the first pole piece; S302, stacking and thermally compounding the second multi-piece unit and the first multi-piece unit in the composite assembly to obtain the multi-piece composite material belt.
10. The method according to claim 7, wherein the step S400 includes cutting the plurality of composite strips using an insulation film cutter, the length of the insulation film cutter extending in the second direction; The step S500 includes cutting the plurality of pole groups using a pole group cutting device, a length of the pole group cutting device extending along the first direction; The first direction, the second direction and the third direction are perpendicular to each other.

Description

Multi-piece composite unit sheet-making device, lamination system and pole group manufacturing method Technical Field The application relates to the technical field of batteries, in particular to a multi-piece composite unit sheet-making device, a lamination system and a pole group manufacturing method. Background At present, a thermal composite lamination is used as one lamination mode, and the process is that a polar pole piece and an insulating film are firstly combined in a thermal composite mode to form a thermal composite unit, and then the thermal composite unit and another polar pole piece are alternately laminated to form a pole group. The method has the advantages that 100% full detection of the positive electrode plate, the negative electrode plate and the insulating film can be realized, the risk of wrinkling of the insulating film is eliminated, and the safety of the battery cell is improved. Meanwhile, compared with a winding mode, the traditional thermal compounding and Z-folded sheet has lower production efficiency and higher production cost. Therefore, to reduce the production cost of the lamination, it is important to further improve the efficiency of the lamination equipment. And efficiency and the output of film-making process are as the front end process of lamination equipment, and film-making efficiency has greatly influenced the holistic machining efficiency of lamination equipment, in prior art, promotes efficiency through the process speed that improves the film-making process generally, but along with the progress of technology, the film-making speed has hardly obtained promoting by a wide margin, and this has also restricted the promotion of lamination equipment holistic efficiency. Disclosure of Invention The application aims to provide a multi-piece composite unit sheet-making device, a lamination system and a pole group manufacturing method, so as to solve the technical problem of how to improve the processing efficiency of lamination equipment in the sheet-making stage in the prior art to a certain extent. The application provides a multi-piece composite unit tabletting device, which comprises: A composite component; The first blanking mechanism is arranged at intervals with the composite component and is used for supplying a first multi-chip unit to the composite component; The film covering assembly is arranged between the first blanking mechanism and the composite assembly and is used for attaching an insulating material belt to the first multi-chip unit before the first multi-chip unit enters the composite assembly; The second blanking mechanism is arranged at intervals with the composite component and is used for supplying a second multi-chip unit to the composite component; And the insulating film cutter is arranged at intervals with the composite component. In the above technical solution, further, the first blanking mechanism includes: A first pole roll blanking member; The first slitting device is arranged at intervals with the first pole roll blanking member, and the first pole roll blanking member is used for conveying a first pole roll to the first slitting device; The first cutting device is arranged at intervals with the first slitting device along the conveying direction of the first pole roll, and the first cutting device cuts the first pole roll along the width direction of the first pole roll. In any of the foregoing technical solutions, further, the second discharging mechanism includes: a second roll blanking member; the second slitting device is arranged at intervals with the second electrode roll blanking member, and the second electrode roll blanking member is used for conveying a second electrode roll to the second slitting device; The second cutting device is arranged at intervals with the second slitting device along the conveying direction of the second pole roll, and the second cutting device cuts the second pole roll along the width direction of the second pole roll. In any of the above embodiments, further, the multi-piece composite unit production apparatus further includes: The electrostatic platform is arranged at the inlet of the composite component; the first carrying device is arranged between the first cutting device and the electrostatic platform; The second carrying device is arranged between the second cutting device and the electrostatic platform. In any of the above technical solutions, further, the membrane-covered assembly includes: The first film coating component comprises an insulating material belt, the first film coating component and the first pole roll blanking component are arranged at intervals, and the first film coating component is used for paving the insulating material belt on one side surface of the first pole roll passing through the first cutting device; The second film coating component comprises another insulating material belt, the second film coating component and the first pole roll blanking component are arran