Electrode Layer Inspection for Precise Module Stacking Alignment

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Solution Overview

Problem

Existing methods for producing modules or precursors, such as fuel or battery cells, suffer from vertical precision issues and high short-circuit risks due to imprecise manufacturing of electrode stacks, leading to inefficient production processes.

Innovation Solution

An inspection process and apparatus that includes cameras to detect the position and orientation of anode/cathode layers, adjusting the stacking apparatus for precise alignment, and checking the position of layers relative to the stack, achieving an accuracy of ±0.1 mm.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional manufacturing methods are used for electrode stacks, then production speed can be maintained, but vertical precision deteriorates leading to short-circuit risks

Engineering Contradiction:

Improvevertical precision of layer placementVSAvoidshort-circuit risk

Core Design Contradiction:

Manufacturing precisionVSReliability

Solution Approach 1:

The system performs preliminary detection of layer position and orientation using cameras before the stacking operation. Correction values are calculated in advance based on detected deviations, and the stacking apparatus is pre-adjusted according to these values. This preliminary action ensures that precise alignment is achieved before actual stacking, eliminating short-circuit risks while maintaining production speed.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements a closed-loop feedback mechanism where cameras continuously detect the position and orientation of anode/cathode layers, and the stacking apparatus automatically adjusts based on detected deviations. The feedback loop real-time corrects alignment errors, ensuring vertical precision of ±0.1 mm and preventing short circuits without requiring slow manual adjustments.

Inventive Principle:

Principle #23Feedback

2Manufacturing precision

If inspection and adjustment processes are added to improve precision, then manufacturing accuracy improves, but production time increases

Engineering Contradiction:

Improvelayer placement accuracyVSAvoidproduction speed

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The detection and adjustment processes are integrated into the continuous stacking operation rather than being separate batch operations. Cameras continuously monitor layer positions during transport, and adjustments are made in real-time without interrupting the stacking flow. This continuous action maintains production speed while achieving ±0.1 mm precision through automated real-time corrections.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The system replaces manual inspection and adjustment operations with automated optical detection (cameras) and automated positioning systems. This substitution eliminates time-consuming human intervention while maintaining continuous production flow. The automated system detects deviations and executes corrections instantly, preserving production speed while achieving high precision that would be difficult to obtain manually.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Measurement precision

If multiple cameras and detection systems are deployed to achieve high precision, then measurement accuracy improves, but device complexity increases

Engineering Contradiction:

Improveposition and orientation detection accuracyVSAvoidinspection apparatus complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The camera system is designed to perform multiple functions: detecting position, detecting orientation, and providing data for correction value calculation. The same optical sensors and image processing algorithms serve both measurement and control functions. This multi-functionality reduces the need for separate dedicated sensors for each parameter, simplifying the overall system while maintaining high measurement precision for both position and orientation.

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

This process significantly reduces the risk of short circuits and improves the efficiency of module production by ensuring precise layer placement, resulting in higher quality and reduced waste.

Implementation Method 1

a camera (first camera, second camera) for detecting a position and/or an orientation of the anode/cathode layer

Methodology Applied

Scientific EffectReflection: Reflection

Data Source

PatentUS20250391900A1Inspection process in the production of modules or precursors of modules

Publication Date: 2025.12.25 MB AUTOMATION GMBH& CO KG

AI summary

An inspection in the manufacture of modules or pre-stages of modules, comprises: providing a separated anode/cathode layer at a pick-up location; conveying a stacking apparatus to the pick-up location; picking up the anode/cathode layer from the pick-up location by the stacking apparatus; detecting the position and/or orientation of the anode/cathode layer; transporting the anode/cathode layer to a stacking location by the stacking apparatus; aligning the stacking apparatus with the transported anode/cathode layer relative to the stacking location; and stacking the transported anode/cathode layer at the stacking location.