Laminated Armoring Material With Selective Metal Foil Exposure
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Solution Overview
Problem
Existing laminated armoring materials used in battery cases and packaging materials do not allow for easy exposure of the metal foil layer for conductive or soldering purposes, and existing methods to cut resin layers without cutting the metal foil are cumbersome and inefficient.
Innovation Solution
A method of manufacturing laminated armoring materials by adhering resin layers to a metal foil with adhesive agent unapplied sections, allowing selective removal of resin layers to expose the metal foil, using techniques like laser cutting and adhesive agent unapplied sections formed by convex rolls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If resin layers are completely adhered to metal foil layer, then structural integrity and protection are improved, but metal foil exposure for conductive applications becomes difficult
Solution Approach 1:
The adhesive agent application is segmented into two distinct zones: a first adhesive agent layer applied to a first area of the metal foil layer for structural bonding, and a second adhesive agent layer applied to a second area for resin layer adhesion. This segmentation allows the metal foil to be partially exposed while maintaining overall structural integrity through the distributed adhesive bonding zones.
Solution Approach 2:
Different regions of the metal foil layer are given different adhesive properties: the first area has adhesive agent for structural bonding while the second area has adhesive agent for resin adhesion. This local differentiation enables selective exposure of metal foil in specific regions while maintaining adhesion in other regions, resolving the contradiction between complete coverage and exposure needs.
2Quantity of substance
If laser is reciprocated to burn out resin layer surface, then resin removal is achieved, but manufacturing complexity and time consumption increase
Solution Approach 1:
The adhesive agent is applied in a pattern that预先 leaves certain areas without adhesive coverage. This preliminary action creates predetermined exposure zones where resin layers can be easily removed without requiring extensive laser burning, as the resin in these zones is not strongly bonded to the metal foil. This significantly reduces manufacturing time compared to removing fully adhered resin layers.
Solution Approach 2:
The invention extracts the adhesive agent from specific areas (creating unapplied sections) before resin layer application. This extraction creates zones where resin layers can be selectively removed with minimal effort, avoiding the need for time-consuming laser reciprocation to burn out the entire resin layer surface.
3Strength
If adhesive agent is applied to entire joining region, then complete bonding is achieved, but selective resin removal for metal exposure becomes impossible
Solution Approach 1:
The adhesive agent application is divided into distinct segments: a first adhesive agent layer for structural bonding and a second adhesive agent layer for resin adhesion. This segmentation maintains bonding strength in critical areas while creating designated zones where metal foil can be exposed, thus achieving both complete bonding and metal exposure capability.
Solution Approach 2:
The adhesive agent distribution is made non-uniform with different concentrations and coverage areas: the first adhesive agent layer provides strong bonding in the first area, while the second adhesive agent layer provides adhesion in the second area. This local quality differentiation enables the metal foil to be exposed in specific regions while maintaining overall bonding strength through the distributed adhesive zones.
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 easy and assured exposure of the metal foil layer for conductive or soldering applications, with reduced burrs and efficient resin removal, enhancing the functionality of laminated armoring materials.
Implementation Method 1
adhesive agent unapplied sections formed by convex rolls
Implementation Method 2
resin layers to expose the metal foil, using techniques like laser cutting
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.