Polymer Through-Hole Templates for Scalable Lithium Battery Electrodes
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Solution Overview
Problem
The template method for synthesizing one-dimensional materials is limited to laboratory research and difficult to scale up for industrial mass production due to high manufacturing costs and challenges in producing large-area anodized aluminum oxide templates.
Innovation Solution
A manufacturing method for a template involving a conductive substrate and a flexible polymer thin film with through holes, where the film material is laminated on the substrate, and the adhesive layer is treated to expose the through holes, allowing for the growth of one-dimensional columnar structures and facilitating mass production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If anodized aluminum oxide template is used to manufacture one-dimensional materials, then the materials can be synthesized with controlled structure, but the manufacturing cost is high and large-area templates are difficult to produce
Solution Approach 1:
The patent replaces expensive anodized aluminum oxide templates with inexpensive polymer film templates that can be easily manufactured and discarded after use. The polymer film with through-holes serves as a temporary sacrificial structure that enables controlled growth of one-dimensional materials without requiring costly template fabrication processes.
Solution Approach 2:
The patent changes the material parameter from inorganic anodized aluminum oxide to organic polymer film, and adjusts the structural parameters by controlling through-hole diameter, distribution, and alignment. This allows optimization of template properties for specific applications while maintaining ease of manufacture through conventional film fabrication techniques.
2Manufacturing precision
If conventional template methods are used, then one-dimensional materials can be synthesized, but the process is limited to laboratory research and difficult to realize mass production
Solution Approach 1:
The patent creates a universal template system using polymer films that can be applied to manufacture various one-dimensional materials (nanowires, nanotubes, nanorods) through different growth conditions. The same template structure serves multiple functions: defining geometry, controlling alignment, and enabling scalable production across different material systems.
Solution Approach 2:
The patent divides the template into modular components with through-holes that can be arranged in specific patterns. This segmentation allows the template to be manufactured using conventional techniques and enables parallel production of multiple one-dimensional structures simultaneously, greatly enhancing productivity for mass production.
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 method enables the production of lithium secondary battery electrodes with optimized material characteristics and processes, reducing manufacturing costs and enabling large-scale industrial mass production while improving the performance and stability of the battery electrodes.
Implementation Method 1
treating the film material by ion track etching to obtain the through holes
Implementation Method 2
bonding the film material formed with the adhesive layer to the substrate through the adhesive layer by hot pressing
Data Source
AI summary
Disclosed are a template as well as a manufacturing method and use, an intermediate structure of a lithium secondary battery electrode and a lithium secondary battery electrode. The template is used for preparing the lithium secondary battery electrode on one surface and/or two surfaces. The manufacturing method for the template includes the following steps: laminating a film material on a substrate, and allowing the film material to be formed with through holes, central axes of the through holes being perpendicular to a plane where the substrate is located; where the substrate is a conductive substrate, and the film material is a flexible polymer thin film. When used for preparing the lithium secondary battery electrode, the template has the advantages of low manufacturing cost, convenient large-area synthesis, suitability for mass production, etc.