Electrode Assembly Traceability Using Cut Position Data
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Solution Overview
Problem
Existing battery manufacturing processes lack effective quality traceability and data matching, particularly for patterned electrodes, leading to difficulties in tracking electrode assemblies and maintaining quality control throughout the manufacturing process.
Innovation Solution
A system and method involving cutters, sensors, and a combinator to form electrode cut portions with assigned identification information, enabling precise tracking and quality control by associating cutting operation codes and position data with the manufactured electrode assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional battery manufacturing processes are used without identification tracking, then the manufacturing process is simpler and faster, but quality traceability and data matching are lost
Solution Approach 1:
The system assigns identification information to electrode assemblies during the winding process before they proceed to subsequent manufacturing stages. This preliminary tagging enables traceability from the outset, allowing quality data to be tracked throughout the entire manufacturing process without disrupting production flow.
Solution Approach 2:
The patent introduces an identification information management system that acts as an intermediary between the winding process and quality control systems. This mediator captures, stores, and transmits identification data and quality parameters, enabling data matching without requiring direct integration between all manufacturing subsystems.
2Reliability
If identification information is assigned to each electrode assembly, then quality control and tracking are improved, but the manufacturing process becomes more complex
Solution Approach 1:
The identification information management system serves multiple functions simultaneously: it tracks electrode assemblies through the manufacturing process, stores quality data, enables data matching across different stages, and provides traceability. This multi-functional approach consolidates what could be multiple separate systems into a single integrated solution.
Solution Approach 2:
The system creates digital copies of electrode assembly identification information and quality data that can be stored, transmitted, and analyzed without affecting the physical manufacturing process. These digital twins enable comprehensive quality control and traceability while keeping the physical manufacturing system unchanged.
3Loss of information
If cutting operation codes and position data are associated with electrode assemblies, then data matching is improved, but information processing requirements increase
Solution Approach 1:
The patent segments the manufacturing process into distinct stages (cutting, winding, assembly) and assigns specific identification information and data parameters to each stage. This segmentation allows data to be organized and processed in manageable units, reducing the complexity of handling large volumes of information while maintaining comprehensive data matching capability.
Data Source
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AI summary
A system and a method for manufacturing an electrode assembly for a battery are provided. The system includes a first cutter configured to cut a first patterned electrode sheet to form a first electrode cut portion having a first length, a first sensor arrangement configured to generate a first cutting operation code and to acquire first position data reflecting positions on the first electrode sheet, a second cutter configured to cut a second patterned electrode sheet to form a second electrode cut portion having a second length, a second sensor arrangement configured to generate a second cutting operation code and to acquire second position data, a combinator configured to manufacture an electrode assembly by combining the first electrode cut portion and the second electrode cut portion with a separator interposed therebetween, and an identification information assigning device configured to assign identification information to the manufactured electrode assembly and associate the identification information with the first cutting operation code and the first position data, and with the second cutting operation code and the second position data.