Laser Cleaning Head for Contaminated Battery Sealing Tools
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Solution Overview
Problem
Existing sealing tools for pouch-type secondary batteries become contaminated with foreign substances during the sealing process, leading to potential defects in the pouch case and manual cleaning methods risk damaging the tools due to operator skill variations.
Innovation Solution
A sealing tool cleaning device using a carbon dioxide laser to remove foreign substances from the sealing tools without contact, employing a laser generation part, cleaning head part, and laser transmission part to adjust and direct the laser for non-damaging cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual scraping method is used to remove foreign substances from sealing tools, then cleaning can be performed, but the sealing tool surface may be worn and cleaning deviation occurs depending on operator skill level
Solution Approach 1:
The patent replaces the mechanical scraping system with a laser-based cleaning system. The laser beam removes foreign substances through ablation without physical contact, eliminating the mechanical wear and human skill dependency inherent in manual scraping methods while maintaining effective foreign substance removal
Solution Approach 2:
The patent introduces a laser beam as an intermediary between the cleaning source and the sealing tool surface. This intermediary enables remote, contactless cleaning by transferring energy through light rather than requiring direct mechanical contact between the scraper and tool surface
2Ease of manufacture
If scraper made of same material as sealing tool is used, then foreign substances can be removed, but the sealing tool surface is worn
Solution Approach 1:
The patent eliminates the need for physical scrapers by using laser ablation. This substitution removes the source of mechanical wear on the sealing tool surface while maintaining the ability to effectively remove foreign substances, thereby extending tool lifespan without compromising cleaning capability
3Reliability
If carbon dioxide laser is used to remove foreign substances, then sealing tools can be cleaned without contact and without damage, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical cleaning mechanisms with a laser-based system. Although the laser system introduces new components, it eliminates the need for contact mechanisms, adjustment mechanisms for mechanical pressure, and replacement parts, ultimately simplifying the overall system architecture while improving reliability
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
The device effectively removes foreign substances from sealing tools, preventing damage and increasing tool lifespan, reducing maintenance costs, and enhancing cleaning efficiency and productivity of pouch-type battery cells.
Implementation Method 1
a sealing tool cleaning device capable of removing foreign substances present in a sealing tool using a carbon dioxide laser
Data Source
AI summary
The sealing tool cleaning device according to one example includes a laser generation part generating a carbon dioxide laser; a cleaning head part provided to enter a separation space between the pair of sealing tools, and including a head case having first and second openings opened toward the pair of sealing tools, respectively, and a head mirror part rotatably installed within the head case and provided to reflect the carbon dioxide laser toward the first opening or the second opening; and a laser transmission part provided to transmit the carbon dioxide laser generated by the laser generation part to the cleaning head part.