Intermediate Roll Mapping for Electrode Quality Tracking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing secondary battery manufacturing systems lack a comprehensive system for generating an intermediate roll map that includes information about quality and defects in the electrode manufacturing process.
Innovation Solution
A method and system for generating an intermediate roll map by inputting and transmitting coordinate-related measurement data, including search parameters such as start and end coordinates, equipment code, collection date and time, and measurement items, using a secondary battery manufacturing system with controllers, encoders, and a server to collect and store measurement data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If coordinate-related measurement data is collected and stored for generating intermediate roll maps, then quality tracking and process feedback capability is improved, but system complexity and data management burden increases
Solution Approach 1:
The system segments measurement data collection by dividing the electrode sheet into coordinate-based regions (start coordinate to end coordinate). Each region's measurement data is independently collected and stored, allowing granular quality tracking without overwhelming the entire system at once. This segmentation enables targeted quality analysis while reducing overall data management complexity.
Solution Approach 2:
The patent introduces an intermediate roll map as a mediator between raw measurement data collection and final quality assessment. This intermediate structure organizes coordinate-related measurement data in a standardized format, serving as a buffer that simplifies subsequent quality analysis while maintaining comprehensive tracking capability.
2Loss of information
If comprehensive measurement data including start coordinate, end coordinate, equipment code, and timestamp is collected, then quality information completeness is improved, but data processing complexity increases
Solution Approach 1:
The patent implements a universal data collection framework that simultaneously captures multiple types of information (coordinate data, equipment code, timestamp, measurement values) through a single integrated system. This multi-functional approach ensures complete quality information is captured without requiring separate processing pipelines for each data type, thereby reducing overall data processing complexity.
Solution Approach 2:
The system performs preliminary organization of measurement data by pre-structuring it with coordinate boundaries, equipment identifiers, and timestamps before further processing. This preliminary action ensures all necessary quality information is captured and organized in advance, eliminating the need for complex post-processing to retrieve missing information.
3Measurement precision
If measurement data is collected based on winding amount signal from encoder, then position accuracy on electrode sheet is improved, but measurement system complexity increases
Solution Approach 1:
The system utilizes the encoder's existing winding amount signal to automatically generate coordinate information for measurement data collection. The encoder essentially serves itself by providing position information that the measurement system uses to organize its own data, eliminating the need for separate position sensing systems and reducing overall measurement system complexity while maintaining high position accuracy.
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
Enables feedback, feedforward, and tracking of the electrode process, improving production efficiency and quality by digitizing and objectifying process aspects, and allowing for process improvements based on historical data.
Implementation Method 1
an encoder, which senses a length of the electrode sheet wound by a rewinder to generate a winding amount signal
Data Source
Figure 1
Figure 2~4
Figure 5
AI summary
Example embodiments of the present technology provide a method of generating an intermediate roll map. The method includes inputting search parameters of coordinate-related measurement data that is collected based on measurement of an electrode sheet and includes raw measurement data, and transmitting the coordinate-related measurement data based on the search parameters, in which the search parameters include a start coordinate and an end coordinate that represent a part of the electrode sheet from which the coordinate-related measurement data is collected