Laminating device, and manufacturing device for laminated electrode assembly

Patent metadata

Field	Value
Publication number	US-12447727-B2
Application number	US-202017794845-A
Country	US
Kind code	B2
Filing date	Nov 30, 2020
Priority date	Jan 27, 2020
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

A laminating device includes: multiple laminating heads that each hold a unit laminated body; a drum section that holds multiple laminating heads; a drum drive unit that rotates the drum section to advance each laminating head to a laminating position that faces a lamination stage; and multiple head drive units that move the respective laminating heads independently of the move made by the rotation of the drum section. A head drive unit for a laminating head that has reached the laminating position drives the laminating head such as to offset the advancement of the laminating head made by the rotation of the drum section. Each laminating head discharges, onto the lamination stage, a unit laminated body so that multiple unit laminated bodies are laminated.

First claim

The invention claimed is:

1. A laminating device, comprising:
a plurality of laminating heads that each hold a unit laminated body in which a separator and an electrode plate are laminated;
a drum section that holds a plurality of the laminating heads arranged on a circumference thereof;
a drum drive unit that rotates the drum section to advance each laminating head to a laminating position that faces a lamination stage; and
a plurality of head drive units that move the respective laminating heads independently of the move thereof made by the rotation of the drum section, wherein
a head drive unit for a laminating head that has reached the laminating position drives the laminating head such as to offset the advancement of the laminating head made by the rotation of the drum section,
each laminating head discharges, onto the lamination stage, a unit laminated body that the laminating head has been holding, so that a plurality of unit laminated bodies are laminated,
the drum section includes a discoid flange portion that projects perpendicularly to a rotating shaft of the drum section, and
the head drive unit includes i) a bracket that supports the laminating heads and that is engaged with the flange portion and ii) a motor supported by the bracket, the head drive unit moving on a circumference of the flange portion when the motor is driven.

2. The laminating device according to claim 1 , wherein a head drive unit accelerates, when the corresponding laminating head gets closer to the lamination stage and reaches a position at a predetermined distance from the lamination stage, the movement of the corresponding laminating head in the rotating direction of the drum section.

3. The laminating device according to claim 1 , wherein a head drive unit accelerates, after the corresponding laminating head discharges a unit laminated body, the movement of the corresponding laminating head in the rotating direction of the drum section.

4. A manufacturing device for a laminated electrode assembly, the manufacturing device comprising:
a first electrode cutting drum that cuts a continuous body of a plurality of first electrode plates into a plurality of the first electrode plates and conveys the first electrode plates;
a second electrode cutting drum that cuts a continuous body of a plurality of second electrode plates into a plurality of the second electrode plates and conveys the second electrode plates;
a bonding drum that laminates and bonds a first separator continuous body in which a plurality of first separators are continuously arranged, a plurality of the first electrode plates supplied from the first electrode cutting drum, a second separator continuous body in which a plurality of second separators are continuously arranged, and a plurality of the second electrode plates supplied from the second electrode cutting drum in this order, so as to form a continuous laminated body in which unit laminated bodies, which each are constituted by the first separator, the first electrode plate, the second separator, and the second electrode plate, are continuously arranged;
a separator cutting drum that cuts the first separator continuous body and the second separator continuous body in the continuous laminated body to obtain a plurality of the unit laminated bodies; and
a laminating drum that is constituted by the laminating device according to claim 1 and that laminates a plurality of the unit laminated bodies on a lamination stage to form a laminated electrode assembly.

Assignees

• Panasonic Holdings Corp

Inventors

• Matsushima Hiroyuki
• Maruyama Masahide

Classifications

• B32B2457/10

  Batteries · CPC title

• B32B2309/70

  Automated, e.g. using a computer or microcomputer · CPC title

• B32B38/185

  combined with the cutting of one or more layers · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• Y02P70/50

  Manufacturing or production processes characterised by the final manufactured product · CPC title