Electrode Roll Tape Removal Using Air Separation and Gripping

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Solution Overview

Problem

Existing tape removal methods for electrode rolls require manual intervention, leading to inconsistent tape removal and potential damage to the electrode roll, which can delay the manufacturing process.

Innovation Solution

A tape removal apparatus that includes a sensing unit to detect the tape, an injection unit to inject air between the tape and the electrode roll, a support unit to hold the non-adhesive portion of the tape, and a gripper to fix the tape, allowing for automatic and uniform tape removal without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual tape removal is performed by workers, then the tape can be removed from electrode rolls, but the removal process is inconsistent and may damage the electrode roll

Engineering Contradiction:
Improvetape removal consistencyVSAvoidelectrode roll damage
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces manual mechanical tape removal with an automated system using compressed air injection. The air is injected between the tape and electrode roll to separate them, eliminating direct mechanical contact that causes damage. This substitution of manual operation with pneumatic mechanism achieves consistent, damage-free tape removal.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces compressed air as an intermediary substance between the tape and electrode roll. The air acts as a mediator to separate the tape from the roll surface without direct contact, preventing damage while ensuring consistent removal. The support unit also serves as an intermediary structure to hold the separated tape.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Extent of automation

If automated tape removal is implemented, then worker intervention is eliminated, but the apparatus complexity increases

Engineering Contradiction:
Improveautomatic tape removalVSAvoidapparatus structure
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The automated tape removal apparatus is divided into distinct functional modules: a compressed air injection unit, a support unit, and an electrode roll holder. Each module performs a specific function, making the overall system easier to design, manufacture, and maintain. The segmentation allows for independent optimization of each component while achieving complete automation.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If a fixed frame structure is used to hold the electrode roll, then the tape removal process is stable, but the apparatus cannot handle electrode rolls of varying sizes

Engineering Contradiction:
Improveelectrode roll size compatibilityVSAvoidapparatus structure stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent employs a dynamic support unit that can move vertically along the electrode roll axis. This dynamic adjustment capability allows the apparatus to accommodate electrode rolls of different diameters and lengths while maintaining stable operation. The support unit's position can be adjusted to match the specific geometry of each electrode roll, ensuring consistent tape removal performance across varying sizes.

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The apparatus enables efficient and automatic removal of tapes from electrode rolls of varying sizes, preventing damage to the rolls and ensuring consistent productivity in the electrode manufacturing process.

Implementation Method 1

an injection unit configured to inject air toward the tape

Methodology Applied
Scientific EffectAir injection:

Data Source

PatentEP4108613B1Tape removal device
Publication Date: 2025.06.04 LG ENERGY SOLUTION LTD
  • EP4108613B1 patent drawingFigure 1
  • EP4108613B1 patent drawingFigure 2
  • EP4108613B1 patent drawingFigure 3

AI summary

The present invention relates to a tape removal apparatus for automatically removing a tape attached to an electrode roll in order to fix the electrode roll, and more particularly to a tape removal apparatus including a sensing unit configured to sense the tape attached to the electrode roll, an injection unit configured to inject air toward the tape, a support unit configured to support a non-adhesive portion of the tape, and a gripper, together with the support unit, configured to fix the non-adhesive portion of the tape.