Electrolytic Copper Foil Gloss Control for Property Tuning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for controlling the physical properties of electrolytic copper foils, such as tensile strength, elongation, and roughness, are complex and require adjustments to multiple additives, making it difficult to selectively control individual properties.
Innovation Solution
Regulating the surface glossiness of electrolytic copper foils through the addition of a surface glossiness agent, within a specific range of 35 to 400 GU (60°), allows for the control of tensile strength, elongation, and roughness using equations that correlate surface glossiness with these properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple additives are added to control physical properties of electrolytic copper foil, then the physical properties (tensile strength, elongation, roughness) can be improved, but the complexity of the control process increases and costs increase
Solution Approach 1:
The patent uses a single additive that performs multiple functions: it controls surface glossiness while simultaneously influencing tensile strength, elongation, and roughness. This multi-functional additive replaces the need for multiple separate additives, simplifying the control process while maintaining comprehensive physical property management.
Solution Approach 2:
The patent establishes mathematical relationships between surface glossiness values and physical properties (tensile strength, elongation, roughness). By changing the surface glossiness parameter through additive concentration control, all other physical properties can be predicted and controlled through these established correlations, reducing the complexity of managing multiple independent parameters.
2Manufacturing precision
If multiple additives are added to control physical properties of electrolytic copper foil, then the physical properties can be improved, but the additive cost increases
Solution Approach 1:
The patent employs a single additive that simultaneously controls surface glossiness and influences multiple physical properties (tensile strength, elongation, roughness). This eliminates the need to purchase and manage multiple different additives, reducing both the quantity of substances required and the associated costs while maintaining comprehensive property control.
Solution Approach 2:
The patent combines the functions of multiple additives into a single compound or formulation. Instead of using separate additives for surface glossiness, tensile strength, elongation, and roughness control, the invention merges these functions into one additive system, reducing material costs and simplifying the formulation process.
3Strength
If an additive for regulating elongation is used, then the elongation is maintained or improved, but the roughness or surface glossiness is also affected
Solution Approach 1:
The patent establishes mathematical correlations between surface glossiness and physical properties including elongation and roughness. By controlling the surface glossiness parameter through additive concentration, the patent can predict and control elongation and roughness simultaneously, allowing for independent control of what were previously interdependent properties.
Solution Approach 2:
The patent uses measured surface glossiness values as a feedback parameter to control and predict other physical properties. By measuring surface glossiness and using the established mathematical relationships, the system can adjust additive concentration to achieve desired elongation and roughness values, creating a controlled feedback loop for property management.
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
This method enables easy regulation of major physical properties of electrolytic copper foils, simplifies the control process, reduces costs associated with additives and processing, and allows for precise adjustment of properties without affecting others.
Implementation Method 1
a method for manufacturing an electrolytic copper foil... forming the electrolytic copper foil by supplying an electric current while supplying the electrolyte containing additives to a foil manufacturing machine
Data Source
AI summary
A method of controlling physical properties of an electrolytic copper foil according to one embodiment of the present invention includes: controlling the physical properties of the electrolytic copper foil including elongation, tensile strength and roughness by regulating a surface glossiness of the electrolytic copper foil through addition of a surface glossiness agent. The surface glossiness is regulated within a range of 35 to 400 GU (60°).