Insulating coating overlay control system and insulating coating overlay control method

Patent metadata

Field	Value
Publication number	US-12418012-B2
Application number	US-202117914964-A
Country	US
Kind code	B2
Filing date	Nov 26, 2021
Priority date	Dec 3, 2020
Publication date	Sep 16, 2025
Grant date	Sep 16, 2025

Abstract

An insulation-coating overlay control system, an electrode plate for a secondary battery, and an insulation-coating overlay control method are provided. The system includes an insulation coater configured to coat an insulating material to allow the insulating material to cover a partial region of a coated part and a non-coated part in an electrode plate along a boundary part. The coated part has an electrode slurry coated thereon and the non-coated part does not have the electrode slurry coated thereon. An insulation-coating width measuring means is configured to measure an overlay width. An insulation coater moving means is configured to move the insulation coater and a controller is configured to control the insulation coater moving means to adjust the overlay width by comparing the measured overlay width with a predetermined overlay width setting range or an overlay width reference value.

First claim

The invention claimed is:

1. An insulation-coating overlay control system comprising:
an insulation coater configured to coat an insulating material to allow the insulating material to cover a partial region of a coated part and a non-coated part in an electrode plate, along a boundary part between the coated part and the non-coated part, wherein the coated part has an electrode slurry coated thereon and the non-coated part does not have the electrode slurry coated thereon;
an insulation-coating width measuring means configured to measure an overlay width and a non-coated part coating width, wherein the overlay width is a width of an overlay region where the insulating material is coated on the coated part and the non-coated part coating width is a width of a region where the insulating material is coated on the non-coated part;
an insulation coater moving means configured to move the insulation coater; and
a controller configured to compare the measured overlay width with a predetermined overlay width setting range or an overlay width reference value and control the insulation coater moving means based on the comparison,
wherein the insulation coater moving means is controlled to move the insulation coater to a coated part side when the measured overlay width is less than the predetermined overlay width setting range, and to move the insulation coater to a non-coated part side when the measured overlay width exceeds the predetermined overlay width setting range, or wherein the insulation coater moving means is controlled to move the insulation coater to a coated part side when the measured overlay width is less than the overlay width reference value, and to move the insulation coater to a non-coated part side when the measured overlay width exceeds the overlay width reference value.

2. The insulation-coating overlay control system of claim 1 , wherein the overlay width reference value is a median value corresponding to ½ of the predetermined overlay width setting range, and the insulation coater moving means is controlled by comparing a median value of the measured overlay width with a median value of the predetermined overlay width setting range.

3. The insulation-coating overlay control system of claim 1 , wherein the insulation-coating width measuring means is a vision camera configured to visually sense the overlay width and the non-coated part coating width.

4. The insulation-coating overlay control system of claim 3 , wherein the vision camera measures the overlay width and the non-coated part coating width by sensing at least one of color, contrast and chroma of the coated part or the non-coated part.

5. The insulation-coating overlay control system of claim 1 , wherein the insulation coater moving means allows the insulation coater to be moved horizontally and vertically.

6. The insulation-coating overlay control system of claim 1 , wherein the controller adjusts the overlay width by controlling a horizontal movement of the insulation coater moving means,
wherein the adjusted overlay width is measured again by the insulation-coating width measuring means, and
wherein it is determined whether to readjust the overlay width by comparing the remeasured overlay width with the predetermined overlay width setting range or the overlay width reference value.

7. The insulation-coating overlay control system of claim 1 , wherein when the measured overlay width is within the predetermined overlay width setting range or coincides with the overlay width reference value, the insulation coater moving means is controlled to adjust the non-coated part coating width by comparing the measured non-coated part coating width with a predetermined non-coated part coating width setting range or non-coated part coating width reference value.

8. The insulation-coating overlay control system of claim 7 , wherein the controller adjusts the non-coated part coating width by controlling a vertical movement of the insulation coater moving means,
wherein the non-coated part coating width and the overlay coating width are remeasured by the insulation-coating width measuring means when the non-coated part coating width and the overlay coating width have been adjusted according to the vertical movement of the insulation coater moving means, and
wherein it is determined whether to readjust the overlay width and the non-coated part coating width by comparing the remeasured overlay width with the predetermined overlay width setting range or the overlay width reference value and comparing the remeasured non-coated part coating width with the predetermined non-coated part coating width setting range or a non-coated part coating width reference value.

9. The insulation-coating overlay control system of claim 6 , wherein when the remeasured overlay width is within the predetermined overlay width setting range or coincides with the overlay width reference value, the insulation coater moving means is controlled to adjust the non-coated part coating width by comparing the measured non-coated part coating width with a predetermined non-coated part coating width setting range or non-coated part coating width reference value.

10. The insulation-coating overlay control system of claim 9 , wherein the controller is configured to adjust the non-coated part coating width by controlling a vertical movement of the insulation coater moving means,
wherein the non-coated part coating width and the overlay coating width, are remeasured by the insulation coating width measuring means when the non-coated part coating width and the overlay coating width have been adjusted according to the vertical movement of the insulation coater moving means, and
wherein it is determined whether to readjust the overlay width and the non-coated part coating width by comparing the remeasured overlay width with the predetermined overlay width setting range or overlay width reference value and comparing the remeasured non-coated part coating width with a predetermined non-coated part coating width setting range or a non-coated part coating width reference value.

Assignees

• Lg Energy Solution Ltd

Inventors

• Lee Chang Hun
• Hong Seong Wook
• Song Dong Hun
• Choy Sang Hoon
• Jeon Shin Wook

Classifications

• H01M4/13

  Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof · CPC title

• H01M4/62

  Selection of inactive substances as ingredients for active masses, e.g. binders, fillers · CPC title

• B05C11/1015

  responsive to a conditions of ambient medium or target, e.g. humidity, temperature (B05C11/1005 takes precedence); responsive to position or movement of the coating head relative to the target · CPC title

• B05C11/1005 Primary

  responsive to condition of liquid or other fluent material already applied to the surface, e.g. coating thickness, weight or pattern · CPC title

• B05C5/0254

  Coating heads with slot-shaped outlet (B05C5/0283 takes precedence) · CPC title