Battery Cell Traceability Using Virtual ID Process Matching
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Solution Overview
Problem
Existing battery manufacturing processes lack accurate matching between process data and batteries, which hampers the reliability of quality analysis and prediction of battery quality degradation.
Innovation Solution
A battery manufacturing method and system that generates a virtual identifier (ID) for each battery cell, shifts this ID through process stages, associates it with process data, and matches it with a cell ID for accurate data transmission to an upper control system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If process data is collected and reported to an upper controller in existing battery manufacturing processes, then data transmission is achieved, but accurate matching between process data and battery cells cannot be guaranteed
Solution Approach 1:
The patent introduces a virtual ID as an intermediary element that bridges process data and battery cell identification. The virtual ID is generated during the notching and dryer process, transferred through the lamination process, and finally matched with the cell ID after barcode attachment, serving as a mediator that maintains data-battery correspondence throughout the manufacturing process
Solution Approach 2:
The patent performs preliminary generation of virtual IDs during the notching and dryer process, before the lamination and barcode attachment processes occur. This preliminary action ensures that identification data is established early in the manufacturing sequence, enabling subsequent matching operations to proceed accurately
Data Source
AI summary
A battery manufacturing method according to the present disclosure includes generating a virtual identifier (ID) corresponding to a battery cell, shifting the virtual ID according to a progression of processes included in a process line for the battery cell, storing the shifted virtual ID and associating the shifted virtual ID with process data generated for the battery cell, extracting a cell ID for the battery cell, and matching the process data associated with the shifted virtual ID with the cell ID, and transmitting the process data to an upper control system.