Roll map for electrode coating process and roll map creation method and system

Patent metadata

Field	Value
Publication number	US-12493394-B2
Application number	US-202519213529-A
Country	US
Kind code	B2
Filing date	May 20, 2025
Priority date	Mar 26, 2021
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

A roll map of an electrode coating process includes a roll map bar and a representation part. The roll map bar is displayed on a screen in synchronization with movement of an electrode between an unwinder and a rewinder while being coated with an electrode slurry in a roll-to-roll state. The roll map bar is displayed in the form of a bar by simulating the electrode in the roll-to-roll state. The representation part is configured to visually show either one of or both quality-related and defect-related acquired data associated with the electrode coating process. The acquired data is shown at a certain location on the roll map bar corresponding to a location in the electrode at which the data is measured. A roll map of an electrode coating process is generated by a process. A roll map of an electrode coating process is generated by a system.

First claim

The invention claimed is:

1 . A roll map of an electrode coating process, comprising:
a roll map bar that is displayed on a screen is displayed in a form of a bar by simulating the electrode; and a representation part configured to visually show data related to a loading amount of an electrode slurry on the electrode, the data being shown on the representation part along a longitudinal direction of the roll map bar.

2 . The roll map of claim 1 , wherein the representation part is configured to visually show at least one of quality-related and defect-related acquired data other than the data related to the loading amount of the electrode slurry, the acquired data being shown on the representation part at a certain location on the roll map bar corresponding to a location in the electrode at which the data is measured.

3 . The roll map of claim 1 , wherein a longitudinal dimension of the electrode is displayed at certain intervals in a longitudinal direction of the roll map bar.

4 . The roll map of claim 1 , wherein the data related to the loading amount of the electrode slurry comprise data indicating at least one of normal loading amount, insufficient loading amount, and excessive loading amount over a specific range on the roll map bar.

5 . The roll map of claim 2 , wherein the acquired data is selected from a group comprising 1) data on at least one of electrode dimensions and width, 2) data on a mismatch between a coated electrode part of the electrode and a non-coated electrode part of the electrode, 3) electrode appearance defect data, 4) data on a location of a disconnected section of an electrode or inter-electrode connection, 5) data on a location of a sample examination unit, 6) data on a location of an electrode discard section of an electrode, 7) data on insulating quality or defects in an insulating material coating process performed after electrode slurry coating, and 8) other defect data.

6 . The roll map of claim 2 , wherein the roll map bar is configured for having a specific range of the roll map bar on the screen specified and clicked such that at least one of the acquired data and the data related to the loading amount of the electrode slurry in a range on the electrode corresponding to the specific range is visually displayed on the screen separately from the roll map bar.

7 . The roll map of claim 1 , wherein the electrode is a double-sided electrode and roll maps for a top surface and a bottom surface of the double-sided electrode are displayed on the same screen.

8 . The roll map of claim 1 , wherein at least one of data on an input status of electrode foil, the electrode slurry, and an insulating material input to the electrode coating process and data on a loading amount of the electrode slurry input to the electrode coating process is visually displayed on the screen in parallel with the roll map in a longitudinal direction of the roll map.

Assignees

• Lg Energy Solution Ltd

Inventors

• Su Jun Hyo
• Park Jong Seok
• Lee Dong Yeop
• Han Ki Deok
• Han Byoung Eun
• Huh Seung
• Park Ju Yeon

Classifications

• H01M4/04

  Processes of manufacture in general · CPC title

• G01N2021/8427

  Coatings · CPC title

• G01N21/8422 Primary

  Investigating thin films, e.g. matrix isolation method · CPC title

• H01M4/0409

  by a doctor blade method, slip-casting or roller coating · CPC title

• H01M4/0404

  by coating on electrode collectors · CPC title