Laminated Armoring Material With Patterned Adhesive-Free Foil Exposure
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Solution Overview
Problem
Existing laminated armoring materials, used in battery cases and packaging, cannot expose metal foils for conductive or soldering purposes without damaging the resin layers, and existing cutting technologies fail to efficiently remove resin layers to expose metal foils for such applications.
Innovation Solution
A method involving the application of adhesive agents with unapplied sections on laminated armoring materials, allowing partial removal of resin layers to expose metal foils, using techniques like laser cutting to ensure precise and burr-free exposure of metal foils for conductive or soldering applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If resin layers are completely removed from laminated armoring material to expose metal foil, then metal foil can be used for conduction or soldering, but the structural integrity and protection are compromised
Solution Approach 1:
The patent applies local quality by creating a selective exposure design where metal foil is exposed only in specific local regions (such as terminal areas or bonding areas) rather than removing the entire resin layer. This allows the metal foil to provide conductive functionality where needed while the resin layers remain intact in other areas to maintain structural integrity and protection.
2Manufacturing precision
If laser processing is used to cut resin layer, then linear slit can be formed, but resin layer cannot be completely removed in plane shape
Solution Approach 1:
The patent applies preliminary action by first forming a patterned adhesive agent layer with unapplied sections before adhering the resin layers. This preliminary patterning creates predetermined weak separation lines that guide the subsequent resin removal process, allowing complete resin removal in plane shape without requiring complex laser processing to burn out the entire surface.
Solution Approach 2:
The patent segments the adhesive agent application into distinct applied and unapplied sections, creating a patterned adhesive layer. This segmentation provides predetermined separation zones that facilitate complete and clean resin layer removal in specific areas while maintaining adhesion in other areas, solving the problem of incomplete resin removal.
3Strength
If adhesive agent is applied to entire joining region, then resin layer adheres strongly to metal foil, but resin layer cannot be selectively removed to expose metal foil
Solution Approach 1:
The patent applies local quality by creating a patterned adhesive agent layer with different properties in different regions. The adhesive agent is applied to most of the joining region to provide strong adhesion, while leaving unapplied sections (patterned areas) where the adhesive agent is intentionally omitted. This allows selective resin removal in the unapplied sections to expose metal foil for conductive functionality while maintaining strong adhesion in the applied sections.
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 the assured exposure of metal foils for conductive or soldering purposes without residual adhesive, facilitating the use of laminated armoring materials in battery cases and packaging, improving handling and functionality.
Implementation Method 1
removing a part of at least one of the first resin layer and the second resin layer
Data Source
AI summary
In laminating resin layers on both surfaces of a metal foil layer by adhering a heat-resistant resin layer to a first surface of the metal foil layer and adhering a heat-sealable resin layer to a second surface thereof, as an adhering method, by employing an adhesive agent unapplied portion forming and adhering process in which the resin layer and the metal foil layer are adhered together by applying an adhesive agent to a region of a joining face of both the layers excluding a part of the region so that an adhesive agent unapplied section is formed, a laminated body having the adhesive agent unapplied section is manufactured. A resin layer removal process for removing a resin layer corresponding to the adhesive agent unapplied section of the laminated body to expose the metal foil layer is performed.