CN-122000412-A - Pole group manufacturing equipment and pole group manufacturing method

CN122000412ACN 122000412 ACN122000412 ACN 122000412ACN-122000412-A

Abstract

The application relates to the technical field of batteries, in particular to a pole group manufacturing device and a pole group manufacturing method, wherein the pole group manufacturing device comprises a first sheet manufacturing mechanism, a second sheet manufacturing mechanism and a first sheet manufacturing mechanism, wherein the first sheet manufacturing mechanism comprises at least two first blanking members, and all the first blanking members are sequentially arranged along a first direction; the second sheet making mechanism comprises at least two second blanking members, and a film coating mechanism which is arranged at the side part of the second sheet making mechanism and can lay diaphragm material belts on the two large sides of all the second pole pieces. The pole group manufacturing equipment provided by the application can manufacture at least two first pole pieces and at least two second pole pieces at a time in the pole group manufacturing stage, so that the pole group manufacturing efficiency is obviously improved, sufficient pole piece storage is provided for subsequent lamination, hot pressing and other operations, the production efficiency of the pole group manufacturing equipment is improved, the running speed of each processing flow is not required to be improved, the multiple increase of the yield can be realized, and the running efficiency of the pole group manufacturing equipment is obviously improved.

Inventors

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Assignees

蜂巢能源科技股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260212

Claims (10)

1. A pole set manufacturing apparatus, comprising: the first sheet making mechanism comprises at least two first blanking members, all the first blanking members are sequentially arranged along a first direction, the first blanking members are used for manufacturing first pole pieces, and the first pole pieces manufactured by all the first blanking members are arranged at intervals along the first direction; The second sheet making mechanism comprises at least two second blanking members, all the second blanking members are sequentially arranged along the first direction, the second blanking members are used for making second pole pieces with polarity opposite to that of the first pole pieces, and all the second pole pieces made of the second blanking members are arranged at intervals along the first direction; and the film coating mechanism is arranged at the side part of the second sheet making mechanism, and can lay diaphragm material belts on the two large surfaces of all the second pole pieces.
2. The pole set manufacturing apparatus of claim 1, wherein each of the first blanking members comprises: The first rollers of all the first blanking members are sequentially arranged along the first direction, and the axes of all the first rollers are collinear or parallel; the first rollers can convey the first pole rolls to the first cutters, the first pole roll can be cut into the first pole piece by the first cutter when passing through the first cutter; Each second blanking member includes: The second rollers of all the second blanking members are sequentially arranged along the first direction, and the axes of all the second rollers are collinear or parallel; Each second roller can convey the second pole piece to the second cutter, and the second pole piece can be cut into the second pole piece when passing through the second cutter.
3. The pole group manufacturing apparatus according to claim 1, wherein the film coating mechanism includes: the first film coating component comprises the diaphragm material belt, the first film coating component and the second blanking component are arranged at intervals, and the first film coating component is used for paving the diaphragm material belt on one side surface of all the second pole pieces; The second film coating component comprises another diaphragm material belt, the second film coating component and the second blanking component are arranged at intervals, and the second film coating component is used for paving the diaphragm material belt on the other side surface of all the second pole pieces.
4. The pole group manufacturing apparatus according to claim 1, the pole group manufacturing equipment is characterized by further comprising: A composite member; the membrane covering mechanism, the composite member and the membrane cutter are sequentially arranged along the conveying direction of the second pole piece.
5. The pole group manufacturing apparatus according to claim 1, the pole group manufacturing equipment is characterized by further comprising: The lamination mechanism comprises at least one lamination station, and the lamination station comprises a first deviation rectifying table, a lamination table and a second deviation rectifying table which are sequentially arranged; The pole piece unit transfer mechanism is arranged between the first sheet making mechanism and the first deviation correcting table; the compound unit transfer mechanism is arranged between the second film-making mechanism and the second deviation rectifying table.
6. The pole group manufacturing apparatus as claimed in claim 5, the pole group manufacturing equipment is characterized by further comprising: the hot pressing mechanism is arranged at the side part of the lamination mechanism; the slitting device is arranged at intervals with the hot pressing mechanism; The hot-pressing feeding mechanism is arranged between the lamination mechanism and the hot-pressing mechanism; And the hot pressing blanking mechanism is arranged between the hot pressing mechanism and the slitting device.
7. The pole group manufacturing apparatus as claimed in claim 6, the pole group manufacturing equipment is characterized by further comprising: The pole group transfer device is arranged between the slitting device and the hot-pressing blanking mechanism; the electrode group blanking device is arranged at the side part of the electrode group transfer device; Unloading transfer chain and waste material stretching strap, the unloading transfer chain with waste material stretching strap interval distribution in utmost point group unloader's lateral part.
8. The manufacturing method of the pole group is characterized by comprising the following steps of: S100, manufacturing a double-sheet pole piece unit, namely simultaneously cutting at least two first pole rolls distributed along a first direction to divide the at least two first pole rolls into the double-sheet pole piece unit, wherein the double-sheet pole piece unit comprises first pole pieces distributed at intervals along the first direction; s200, manufacturing a double-sheet composite material belt, namely simultaneously cutting at least two second pole rolls distributed along the first direction so as to divide the at least two second pole rolls into a plurality of second pole pieces with opposite polarities to the first pole pieces; the second pole pieces comprise first surfaces and second surfaces distributed along a third direction, and a diaphragm material belt is attached to the first surface of each second pole piece and the second surface of each second pole piece; S300, manufacturing a double-sheet composite unit, namely cutting the diaphragm material belt, and dividing the double-sheet composite material belt into a plurality of double-sheet composite units which are sequentially arranged along the first direction; s400, manufacturing a double-sheet pole group, namely alternately stacking the double-sheet pole piece units and the double-sheet composite units to a preset layer number; s500, manufacturing a monopole group, cutting the biplate pole group, and dividing the biplate pole group into the monopole group.
9. The pole group manufacturing method according to claim 8, wherein step S400 includes: s301, cutting the diaphragm material belt between two adjacent second pole pieces in the double-piece composite material belt through a diaphragm cutter, wherein the length of the diaphragm cutter extends along the first direction.
10. The pole group manufacturing method according to claim 8, wherein step S500 includes: S501, cutting the double-plate pole group through a cutting device, wherein the length of the cutting device extends along a second direction so as to divide the double-plate pole group into monopole groups distributed along the first direction.

Description

Pole group manufacturing equipment and pole group manufacturing method Technical Field The application relates to the technical field of batteries, in particular to a pole group manufacturing device and a pole group manufacturing method. Background The scheme adopted by the existing thermal composite lamination and Z-lamination mass production equipment is that after positive and negative electrode material strips are cut into pieces, the positive and negative electrode material strips are conveyed to a lamination area through a belt line, positive and negative electrode plates are conveyed through a PNP mechanical arm to form a pole group through alternate lamination, and after thermal compression hardening, two-dimension code pasting blanking is completed. Wherein the 'Z' -shaped stacking device separates the positive and negative plates at the lamination by a continuous 'Z' -shaped diaphragm material belt. The thermal compounding equipment is characterized in that the negative electrode material belt is cut into pieces and then is compounded with an upper diaphragm layer and a lower diaphragm layer to form a negative electrode compound unit material belt, the negative electrode compound unit material belt is heated and cut by the diaphragms to form a diaphragm-negative electrode-diaphragm negative electrode compound unit, and the negative electrode compound unit and a positive plate are laminated to form a pole group, so that the following defects exist: 1) The production efficiency of the equipment is low, and the production cost is high compared with the winding mode; 2) Based on the existing scheme, the mode of improving the equipment efficiency by improving the mechanical operation speed has the problems of high technical difficulty, high cost, immature key mechanism technology and difficult debugging. Disclosure of Invention The application aims to provide a pole group manufacturing device and a pole group manufacturing method, which are used for solving the technical problems of low production efficiency, high cost and great difficulty in improving the efficiency of lamination equipment in the prior art to a certain extent. The application provides a pole group manufacturing device, which comprises: the first sheet making mechanism comprises at least two first blanking members, all the first blanking members are sequentially arranged along a first direction, the first blanking members are used for manufacturing first pole pieces, and the first pole pieces manufactured by all the first blanking members are arranged at intervals along the first direction; The second sheet making mechanism comprises at least two second blanking members, all the second blanking members are sequentially arranged along the first direction, the second blanking members are used for making second pole pieces with polarity opposite to that of the first pole pieces, and all the second pole pieces made of the second blanking members are arranged at intervals along the first direction; and the film coating mechanism is arranged at the side part of the second sheet making mechanism, and can lay diaphragm material belts on the two large surfaces of all the second pole pieces. In the above technical solution, further, each of the first blanking members includes: The first rollers of all the first blanking members are sequentially arranged along the first direction, and the axes of all the first rollers are collinear or parallel; the first rollers can convey the first pole rolls to the first cutters, the first pole roll can be cut into the first pole piece by the first cutter when passing through the first cutter; Each second blanking member includes: The second rollers of all the second blanking members are sequentially arranged along the first direction, and the axes of all the second rollers are collinear or parallel; Each second roller can convey the second pole piece to the second cutter, and the second pole piece can be cut into the second pole piece when passing through the second cutter. In any of the above technical solutions, further, the film covering mechanism includes: the first film coating component comprises the diaphragm material belt, the first film coating component and the second blanking component are arranged at intervals, and the first film coating component is used for paving the diaphragm material belt on one side surface of all the second pole pieces; The second film coating component comprises another diaphragm material belt, the second film coating component and the second blanking component are arranged at intervals, and the second film coating component is used for paving the diaphragm material belt on the other side surface of all the second pole pieces. In any of the above solutions, further, the pole group manufacturing apparatus further includes: A composite member; the membrane covering mechanism, the composite member and the membrane cutter are sequentially arranged along the conveying direction