Battery Tape Attachment Roller Reversal for Precise Cutting
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Solution Overview
Problem
The existing methods for attaching adhesive tape to rechargeable batteries often result in sagging, leading to welding defects and reduced process efficiency due to insufficient cutting force, necessitating additional work to correct these defects.
Innovation Solution
The method involves rotating an attachment roller in a first direction to adhere the tape to the battery surface and then reversing its direction to cut the tape, utilizing the combined forces of the roller rotation and battery movement to ensure precise and strong cutting without additional equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the fixing member is moved away from the attachment roller to apply tension for cutting the tape, then the tape is separated from the battery surface, but the cutting force is insufficient causing tape sagging and welding defects
Solution Approach 1:
The patent combines the cutting action with the existing attachment roller mechanism by rotating the roller in reverse direction. This merges the separation function with the cutting function, utilizing the roller's rotational force to provide sufficient cutting power while maintaining process integration and avoiding additional equipment.
Solution Approach 2:
The attachment roller dynamically changes its rotation direction from forward (attachment phase) to reverse (cutting phase). This dynamic reversal allows the same component to perform both tape application and tape cutting functions, generating adequate cutting force through the reverse rotation motion without requiring separate cutting mechanisms.
2Manufacturing precision
If additional equipment is added to increase cutting force, then tape sagging is prevented, but device complexity increases
Solution Approach 1:
The attachment roller is designed to perform multiple functions: it applies the tape to the battery surface during forward rotation and cuts the tape during reverse rotation. This multi-functionality eliminates the need for separate cutting equipment, maintaining device simplicity while achieving precise tape cutting and preventing sagging.
Solution Approach 2:
The system uses its own existing component (the attachment roller) to perform the cutting function. By reversing the rotation of the attachment roller, the system generates the necessary cutting force internally without requiring external equipment, thereby avoiding increased device complexity while ensuring precise tape cutting.
3Productivity
If the tape is cut with insufficient force, then the process is simple, but welding defects occur and work efficiency decreases
Solution Approach 1:
The dynamic reversal of the attachment roller provides sufficient cutting force to prevent tape sagging and welding defects. The reverse rotation creates adequate tension and cutting action, ensuring clean tape separation that prevents subsequent welding problems, thereby improving work efficiency without adding complexity.
Data Source
AI summary
A method of adhering a tape for a rechargeable battery is provided. The method includes contacting one surface of a rechargeable battery with an attachment surface of a tape via an attachment roller interposed therebetween, rotating the attachment roller in a first direction to attach the tape to one surface of the rechargeable battery, and rotating the attachment roller in a second direction opposite the first direction to cut the tape.