Ultrasonic Lithium Sheet Cutting for Stable Electrode Manufacturing
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Solution Overview
Problem
The challenge of properly cutting lithium metal sheets during the manufacturing process due to distance deviation or meandering movement, exacerbated by the softness of lithium metal, leads to improper cutting and handling issues.
Innovation Solution
An electrode manufacturing apparatus that includes a cutter with specific blade configurations to form cutting lines inside the outer boundary of the lithium metal sheet, utilizing ultrasonic cutting and auxiliary lines to minimize meandering effects, ensuring integrated and manageable residues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional cutting methods are used on lithium metal sheets, then the cutting process can be performed, but distance deviation or meandering movement occurs causing improper cutting
Solution Approach 1:
The patent applies ultrasonic vibration to the blade during cutting. The blade vibrates at ultrasonic frequencies while cutting the lithium metal sheet, which prevents the blade from adhering to the soft lithium metal and eliminates meandering movement, thereby achieving precise and consistent cutting.
Solution Approach 2:
The patent replaces conventional mechanical cutting with ultrasonic-assisted cutting. The ultrasonic vibration energy is introduced to the cutting process, substituting pure mechanical force with a combination of vibrational energy and mechanical force, which resolves the adhesion and meandering problems.
2Ease of manufacture
If conventional cutting is used on soft lithium metal, then cutting can proceed, but lithium metal attaches to cutting equipment
Solution Approach 1:
The ultrasonic vibration of the blade creates a separation effect between the blade and the lithium metal surface. The high-frequency oscillation prevents the soft lithium metal from adhering to the blade, eliminating the harmful adhesion effect while maintaining ease of cutting.
Solution Approach 2:
The blade performs periodic contact with the lithium metal through ultrasonic oscillation. This periodic action allows the blade to cut through the material while repeatedly separating from it, preventing continuous adhesion and enabling smooth cutting of soft lithium metal.
3Productivity
If cutting is performed on lithium metal sheets, then electrodes can be manufactured, but residues stick together and become difficult to handle
Solution Approach 1:
The ultrasonic vibration during cutting produces clean cuts without causing lithium metal residues to deform or stick together. The vibrational energy ensures that cut edges remain separate and manageable, improving ease of residue handling while maintaining manufacturing efficiency.
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 apparatus effectively addresses cutting issues by minimizing improper cuts and meandering problems, resulting in integrated and easily handled residues, thereby improving the manufacturing process of lithium metal electrodes.
Implementation Method 1
a cutter configured to cut the lithium metal sheet in an ultrasonic manner by repeatedly approaching the lithium metal sheet
Data Source
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AI summary
The present invention may provide an apparatus for manufacturing an electrode, the apparatus comprising: a sheet supply unit for supplying a lithium metal sheet; an ultrasonic cutting unit that repeatedly approaches the supplied lithium metal sheet to cut the lithium metal sheet; and a blade that is provided in the cutting unit and forms a cutting line on the lithium metal sheet, wherein the cutting line (CL) is formed inside an outer boundary (OL) of the supplied lithium metal sheet.