Cell preparation apparatus and method

Patent metadata

Field	Value
Publication number	US-12438179-B2
Application number	US-202117912324-A
Country	US
Kind code	B2
Filing date	Mar 25, 2021
Priority date	Mar 25, 2020
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

An apparatus for preparing a cell is provided. The apparatus includes an electrode reel from which an electrode sheet is unwound, wherein the electrode sheet is configured to form a plurality of electrodes, a separator reel from which a separator sheet is unwound, wherein the separator sheet is configured to stack with the electrode while covering the electrode by being folded when the electrode is stably placed, a table having an upper surface on which the electrode and the separator sheet are stably placed, and a nozzle configured to apply an adhesive to at least a portion of a region of the separator sheet stably placed on the table.

First claim

The invention claimed is:

1. An apparatus for preparing a cell, the apparatus comprising:
a first electrode reel from which a first electrode sheet is unwound, wherein the first electrode sheet is configured to form a plurality of first electrodes;
a second electrode reel from which a second electrode sheet is unwound, wherein the second electrode sheet is configured to form a plurality of second electrodes;
a separator reel from which a separator sheet is unwound, wherein the separator sheet is configured to be stacked with the plurality of first and second electrodes while covering an electrode of the plurality of first and second electrodes by being folded when the respective electrode of the plurality of first and second electrodes is stably placed;
a table having an upper surface on which the plurality of first and second electrodes and the separator sheet are stably placed;
a first nozzle configured to apply an adhesive to at least a portion of a first region of the separator sheet which covers a second electrode of the plurality of second electrodes; and
a second nozzle configured to apply the adhesive to at least a portion of a second region of the separator sheet which covers a first electrode of the plurality of first electrodes,
wherein the table is configured to repeatedly move between a first position and a second position spaced apart from one another along a horizontal dimension, and the first and second nozzles are positioned above the table along a vertical dimension transverse to the horizontal dimension,
wherein the first nozzle is configured to apply the adhesive to the portion of the first region of the separator sheet positioned underneath the first nozzle in the vertical dimension, and
wherein the second nozzle is configured to apply the adhesive to the portion of the second region of the separator sheet positioned underneath the second nozzle in the vertical dimension.

2. The apparatus for preparing the cell of claim 1 , wherein the first nozzle and the second nozzle are disposed at opposite sides with the separator sheet disposed therebetween.

3. The apparatus for preparing the cell of claim 1 , wherein a first electrode of the plurality of first electrodes is stably placed in the first region of the separator sheet, and
a second electrode of the plurality of second electrodes is stably placed in the second region of the separator sheet.

4. The apparatus for preparing the cell of claim 3 , further comprising:
a first header configured to suck the first electrode to stably place the first electrode in the first region; and
a second header configured to suck the second electrode to stably place the second electrode in the second region.

5. The apparatus for preparing the cell of claim 1 , further comprising:
a moving box configured to accommodate the separator sheet, the first nozzle, and the second nozzle therein.

6. The apparatus for preparing the cell of claim 1 , wherein the table is configured to linearly reciprocate along the horizontal dimension.

7. The apparatus for preparing the cell of claim 1 , wherein the table is configured to swing back and forth along the horizontal dimension.

8. The apparatus for preparing the cell of claim 1 , wherein one side of the separator sheet is folded to cover a first electrode of the plurality of first electrodes when the first electrode is stably placed on the separator sheet, and
the other side of the separator sheet is folded to cover a second electrode of the plurality of second electrodes when the second electrode is stably placed on the separator sheet.

9. A method of preparing a cell, the method comprising:
cutting a first electrode sheet unwound from a first electrode reel to form a first electrode of a plurality of first electrodes;
stably placing a separator sheet unwound from a separator reel on a table;
applying an adhesive by a first nozzle to at least a portion of a first region of the separator sheet;
stably placing the first electrode in the first region to which the adhesive has been applied; and
covering the first electrode with a second region of the separator sheet by folding the separator sheet;
after the covering of the first electrode, cutting a second electrode sheet unwound from a second electrode reel to form a second electrode of a plurality of second electrodes;
applying the adhesive by a second nozzle to at least a portion of the second region; stably placing the second electrode in the second region to which the adhesive has been applied; and
covering the second electrode with the first region of the separator sheet by folding the separator sheet,
wherein the table is configured to repeatedly move between a first position and a second position spaced apart from one another along a horizontal dimension, and the first and second nozzles are positioned above the table along a vertical dimension transverse to the horizontal dimension,
wherein the first nozzle is configured to apply the adhesive to the portion of the first region of the separator sheet positioned underneath the first nozzle in the vertical dimension, and
wherein the second nozzle is configured to apply the adhesive to the portion of the second region of the separator sheet positioned underneath the second nozzle in the vertical dimension.

10. The method of claim 9 , wherein the covering of the first electrode and the covering of the second electrode comprises
the table configured to linearly reciprocate along the horizontal dimension.

11. The method of claim 9 , wherein the covering of the first electrode and the covering of the second electrode comprises
the table configured to swing back and forth along the horizontal dimension.

12. The method of claim 9 , wherein the covering of the first electrode and the covering of the second electrode comprises
a moving box configured to accommodate the separator sheet, the first nozzle, and the second nozzle therein, the moving box configured to linearly reciprocate in a direction in which the separator sheet covers the first electrode and the second electrode.

Assignees

• Lg Energy Solution Ltd

Inventors

• Jung Tai Jin
• Jung Su Taek
• Kwon Soon Kwan
• Bae Sang Ho
• Choi Seong Won
• Lee Yong Jun

Classifications

• B65H35/0006

  Article or web delivery apparatus incorporating cutting or line-perforating devices · CPC title

• H01M10/0459

  Cells or batteries with folded separator between plate-like electrodes · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• Y02P70/50

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

• H01M10/0404 Primary

  Machines for assembling batteries · CPC title