Electrode Assembly Traceability Using Cut Count and Position Data
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Solution Overview
Problem
The existing battery manufacturing processes lack effective quality traceability, making it difficult to track the origin and processing history of electrode assemblies, which can lead to inefficiencies and quality control issues.
Innovation Solution
A battery manufacturing system that includes cutters for unwinding electrode sheets from rolls, a winder for forming electrode assemblies with separators, and an identification information assigning device that assigns unique IDs based on cut count values and position coordinate values of the electrode sheets.
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 is lost making it difficult to track electrode assembly origins and processing history
Solution Approach 1:
The patent applies preliminary action by assigning identification information to electrode sheets and electrode assemblies at the very beginning of the manufacturing process, before any processing occurs. This allows quality traceability to be established from the start, enabling tracking of each assembly's origin and processing history without disrupting subsequent manufacturing operations.
Solution Approach 2:
The patent uses copying by creating virtual identification records (cut count values, position coordinate values) that represent the physical electrode assemblies. These digital copies are stored and transmitted through the manufacturing system, allowing quality tracking without adding physical complexity to the actual manufacturing equipment.
2Reliability
If identification information is assigned to each electrode assembly based on cut count and position coordinates, then quality traceability is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The patent applies universality by designing an identification information assignment device that can handle multiple types of information (cut count values, position coordinate values, electrode sheet IDs) through a single integrated system. This multi-functional approach consolidates what could be multiple separate tracking systems into one unified device, reducing overall complexity.
Solution Approach 2:
The patent uses an intermediary approach by introducing an identification information assignment device that acts as a mediator between the cutting/winding processes and the quality management system. This intermediary device collects and processes identification data without directly interfering with the core manufacturing operations, isolating complexity to a dedicated component.
3Reliability
If cut count values and position coordinate values are recorded for traceability, then defect identification is improved, but data processing requirements increase
Solution Approach 1:
The patent applies the taking out principle by extracting only the essential identification information (cut count values and position coordinate values) needed for quality traceability, rather than recording all possible manufacturing parameters. This selective extraction reduces data volume while maintaining sufficient information for defect identification and quality control.
Solution Approach 2:
The patent uses copying by creating simplified digital representations (cut count and position coordinates) of the complex manufacturing process. These copied data elements serve as sufficient proxies for full process tracking, enabling quality identification without requiring complete detailed records of every manufacturing parameter.
Data Source
AI summary
Systems and methods for manufacturing a battery are disclosed. One system may include: a first cutter configured to cut a first electrode sheet into a first electrode portion; a second cutter configured to cut a second electrode sheet into a second electrode portion having a second length; a winder configured to form an electrode assembly by winding the first electrode portion, the second electrode portion, a separator between the first electrode portion and the second electrode portion; and an identification information assigning device configured to assign identification information to the electrode assembly based on: a cut count value of the first electrode sheet and/or a cut count value of the second electrode sheet; and/or a position coordinate value of the first electrode sheet and/or a position coordinate value of the second electrode sheet.