Electrode Roll Map Coordination for Defect Tracking Across Process Stages

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Solution Overview

Problem

Existing systems lack a comprehensive method to generate a roll map that includes information about the quality and defects in the electrode manufacturing process of secondary batteries, which affects yield and performance.

Innovation Solution

A roll map generating system and method that includes a first server to store electrode specification data, a second server to generate an electrode specification file, and processors to process measurement data, using a JSON format for communication and updating measurement conditions based on the specification file, with sensors to collect data on the electrode sheet, and controllers to manage communication and coordinate processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual methods are used to update measurement conditions and track electrode process data, then system complexity is reduced, but productivity and measurement precision deteriorate due to manual errors and inefficiency

Engineering Contradiction:

Improveelectrode process tracking efficiencyVSAvoidsystem structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The system automatically updates measurement conditions and generates roll maps without manual intervention. The processor self-updates measurement conditions based on received specification data, and the system automatically tracks electrode process data across multiple stages, eliminating the need for manual data collection and processing while improving productivity and reducing errors

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical operations with automated digital systems. Measurement conditions are updated electronically through data reception and processing rather than manual adjustment. The roll map generation uses automated coordinate matching and data integration systems instead of manual tracking methods, significantly improving efficiency and precision

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If comprehensive measurement data collection is implemented across all electrode process stages, then measurement precision and quality information completeness improve, but device complexity and data processing requirements increase

Engineering Contradiction:

Improveelectrode quality measurement accuracyVSAvoidmeasurement system structure

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The processor performs multiple functions including receiving specification data, updating measurement conditions, collecting measurement data from various sensors, generating roll maps, and coordinating with different controllers. This multi-functional approach consolidates what would otherwise require separate systems into a single integrated processor, improving measurement precision without proportionally increasing overall system complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system uses standardized data structures and communication protocols as intermediaries between different measurement stages and processors. The coordinate data and measurement data are standardized into structured formats that facilitate automatic integration and processing, reducing the complexity of data handling while maintaining comprehensive measurement capabilities across all electrode process stages

Inventive Principle:

Principle #24Intermediary (Mediator)

3Productivity

If automated roll map generation with coordinate matching is implemented, then productivity and quality tracking improve, but device complexity and initial setup requirements increase

Engineering Contradiction:

Improveroll map generation speedVSAvoidsystem configuration

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The system performs preliminary actions by pre-defining coordinate systems and measurement conditions based on electrode specifications before actual measurement begins. The measurement conditions are updated in advance based on received specification data, and the coordinate matching framework is established beforehand, enabling rapid roll map generation without complex real-time calculations during production

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system creates digital copies of electrode specifications and measurement data in structured formats. The roll map is generated as a digital representation that copies and integrates coordinate data from multiple measurement stages, allowing rapid reproduction and analysis without physical re-measurement, thereby improving productivity while managing complexity through digital replication

Inventive Principle:

Principle #26Copying

Data Source

PatentEP4685857A1Roll map generation system and roll map generation method

Publication Date: 2026.01.28 LG ENERGY SOLUTION LTD

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AI summary

Example embodiments provide a roll map generating system. The roll map generating system includes a first server configured to store electrode specification data including information about a process of an electrode sheet, a second server configured to generate an electrode specification file based on the electrode specification data, and a first processor configured to process measurement data of the electrode sheet, in which the second server is configured to transmit the electrode specification file to the first processor.