Battery Line Docking Alignment for Flatness and Parallelism

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Solution Overview

Problem

Existing in-line manufacturing facilities for secondary batteries face challenges in achieving precise flatness and parallelism between adjacent facilities, leading to defects such as meandering of base materials and misalignment during the manufacturing process.

Innovation Solution

An in-line manufacturing facility with docking members featuring marked contact portions that ensure predetermined flatness and parallelism by visually guiding assembly, allowing for precise adjustment without manual measurement of facility heights and intervals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If facilities are connected in-line according to installation manuals with manual measurement, then assembly can be completed, but flatness and parallelism between facilities cannot be precisely achieved

Engineering Contradiction:
Improveflatness and parallelism between facilitiesVSAvoidassembly complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent introduces docking members as intermediary components between adjacent facilities. These docking members include contact portions with marks that serve as mediators to transfer and indicate position information, enabling precise alignment without complex manual measurement procedures.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the manual mechanical measurement system with a visual mark-based alignment system. Instead of using measurement tools and manual calculations, the contact portions display marks that directly indicate whether facilities are properly aligned, substituting complex mechanical measurement with simple visual detection.

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

2Loss of time

If manual measurement and adjustment is performed, then assembly can be completed, but measurement errors and time consumption increase

Engineering Contradiction:
Improveassembly timeVSAvoidmeasurement accuracy
Core Design Contradiction:
Loss of timeVSMeasurement precision

Solution Approach 1:

The docking members perform self-alignment indication by displaying marks that automatically show whether facilities are correctly positioned. The system serves itself by providing visual feedback without requiring external measurement tools or complex calculation procedures, thereby reducing both time and error.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent uses visual marks (which may include color changes or different visual patterns) on the contact portions to indicate alignment status. When facilities are properly aligned, the marks display in a predetermined pattern, providing immediate visual confirmation without requiring measurement.

Inventive Principle:
Principle #32Color changes

3Manufacturing precision

If facilities are connected without visual guidance, then assembly is simpler, but alignment accuracy decreases

Engineering Contradiction:
Improvealignment accuracyVSAvoidassembly ease
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The marks on contact portions serve as visual intermediaries that guide the assembly operation. These marks provide intuitive visual cues that simplify the alignment process while ensuring high accuracy, making the system both easy to operate and precise.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The visual marks provide immediate feedback on alignment status through color or pattern changes, making it easy for operators to understand whether facilities are correctly aligned without requiring technical expertise in measurement, thereby improving ease of operation while maintaining high precision.

Inventive Principle:
Principle #32Color changes

Data Source

PatentEP4685899A1In-line manufacturing facility for secondary battery
Publication Date: 2026.01.28 LG ENERGY SOLUTION LTD
  • EP4685899A1 patent drawingFigure 1a~1b
  • EP4685899A1 patent drawingFigure 2
  • EP4685899A1 patent drawingFigure 3a~4

AI summary

An in-line manufacturing facility for secondary batteries related to one example of the present invention comprises multiple facilities arranged for manufacturing secondary batteries, and a docking part including a pair of docking members each mounted on two facilities adjacent to each other and having at least one mark displayed on a contact portion, wherein the pair of docking members is arranged so that the mark has a predetermined shape when two facilities adjacent to each other are assembled at a normal position having predetermined flatness and parallelism.