Laser Separator Cutting for Wide, Fast-Moving Electrode Stacks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for cutting separators in electrode stacks are inefficient in cutting wide or fast-moving separators quickly and precisely, and require significant space for installation.
Innovation Solution
A separator cutting device utilizing a laser generator, scanner, and end mirror to emit and control a laser beam for precise cutting, with a focus spot that can be varied and an end mirror with high heat resistance and reflectance, allowing for non-contact cutting and reduced installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If mechanical cutting using a knife is used, then the structure is simple, but the cutting speed and precision are insufficient for wide or fast-moving separators
Solution Approach 1:
The patent replaces the mechanical knife cutting system with a laser beam cutting system. The laser generator emits a laser beam that is scanned across the separator surface, enabling non-contact cutting that achieves both high precision and high speed without the limitations of mechanical blades
Solution Approach 2:
The patent changes the cutting method from mechanical contact to optical energy application. By controlling laser beam parameters (intensity, duration, scanning speed), the system achieves precise material removal through thermal effects, enabling faster and more accurate cutting compared to mechanical methods
2Productivity
If a laser cutting system is implemented, then cutting speed and precision improve, but the installation space requirement increases
Solution Approach 1:
The patent uses a scanning mirror system to redirect the laser beam path, effectively folding the optical path into a compact configuration. This allows the laser cutting head to cover a large processing area while maintaining a small physical footprint, reducing installation space requirements
Solution Approach 2:
The scanner component serves multiple functions: it directs the laser beam across the separator, controls the cutting pattern, and enables both speed and precision through its scanning mechanism. This multi-functionality reduces the need for additional separate components, minimizing overall installation space
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
Enables quick and precise cutting of wide or fast-moving separators, reducing mechanical wear and space requirements, while maintaining high precision and heat resistance.
Implementation Method 1
a laser generator configured to emit laser beam
Implementation Method 2
emit laser beam... focused onto the separator... cut a sheet-shaped separator
Implementation Method 3
an end mirror configured to reflect the laser beam passing through the scanner toward the separator
Data Source
AI summary
A separator cutting device cuts a sheet-shaped separator with which at least one electrode is laminated. The separator cutting device includes a laser generator configured to emit a laser beam, a scanner configured to control an optical path of the laser beam emitted from the laser generator, and an end mirror configured to reflect the laser beam passing through the scanner toward the separator and disposed at a side of the scanner.