Battery Deposition Opening Cleaning With Directional Fluid Delivery

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Solution Overview

Problem

Conventional manual cleaning of deposition openings in battery manufacturing is labor-intensive and time-consuming, leading to inconsistent cleaning results.

Innovation Solution

An automated battery manufacturing system with a cleaning device that discharges a cleaning fluid perpendicular or parallel to the principal deposition direction, utilizing multiple nozzles and a blower to efficiently clean the deposition opening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual cleaning is used, then device complexity is reduced, but productivity decreases and manufacturing precision deteriorates

Engineering Contradiction:
Improvecleaning efficiencyVSAvoidcleaning system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical cleaning operations with an automated cleaning device that uses a cleaning brush and cleaning fluid delivery system. The automated system eliminates manual labor while maintaining cleaning effectiveness, directly resolving the contradiction between productivity improvement and device complexity.

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

Solution Approach 2:

The cleaning device utilizes a cleaning fluid delivery system that can be integrated with pneumatic or hydraulic mechanisms to supply cleaning fluid to the deposition opening. This allows automated cleaning operations that improve productivity while keeping the system structure manageable through fluid-based cleaning mechanisms.

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Manufacturing precision

If manual cleaning is used, then device complexity is reduced, but manufacturing precision deteriorates

Engineering Contradiction:
Improvecleaning consistencyVSAvoidcleaning system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent replaces inconsistent manual cleaning operations with an automated cleaning device that maintains consistent cleaning pressure, fluid delivery, and brush contact. This automation ensures uniform cleaning results across different deposition openings and operators, directly addressing the manufacturing precision requirement.

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

Solution Approach 2:

The cleaning device is designed to automatically perform cleaning operations without requiring skilled manual intervention. The system self-regulates cleaning parameters such as fluid delivery rate and brush pressure, ensuring consistent cleaning quality while reducing the complexity burden on operators.

Inventive Principle:
Principle #25Self-service

3Productivity

If automated cleaning is implemented, then productivity increases, but device complexity increases

Engineering Contradiction:
Improvecleaning speedVSAvoidcleaning device structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The cleaning device is segmented into distinct functional modules: a cleaning brush component, a cleaning fluid delivery system, and a control mechanism. This segmentation allows each component to be optimized independently and simplifies the overall system design while maintaining high cleaning speed and productivity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cleaning device is designed with multi-functionality, where the cleaning fluid delivery system serves both cleaning and potential drying functions. This universal design reduces the number of separate components needed, thereby reducing overall device complexity while maintaining high productivity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 system achieves consistent and efficient cleaning of deposition openings, reducing labor and time requirements while maintaining uniformity and cleanliness standards.

Implementation Method 1

The cleaning device may be configured to discharge a cleaning fluid toward the deposition opening

Methodology Applied
Scientific EffectFluid flow:

Data Source

PatentEP4606488A1System and method for battery manufacturing
Publication Date: 2025.08.27 LG ENERGY SOLUTION LTD
  • EP4606488A1 patent drawingFigure 1
  • EP4606488A1 patent drawingFigure 2
  • EP4606488A1 patent drawingFigure 3

AI summary

Disclosed herein is a battery manufacturing system comprising a deposition device and a cleaning device. The deposition device configured to discharge a battery material through a deposition opening in a principal deposition direction. The cleaning device arranged outside of the deposition device and configured to discharge a cleaning fluid toward the deposition opening, The cleaning device is configured to move perpendicular and/or parallel to the principal deposition direction.