Flexible Electrode Sheet Connection for Roll-to-Roll Tension Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electrode sheet connection methods in roll-to-roll processes suffer from stress concentration and meandering issues, leading to increased defect rates and reduced device operation efficiency due to inconsistent tension and potential breakage at the connection points.
Innovation Solution
Implementing a flexible connection sheet of predetermined length between electrode sheets, connected using tapes, to absorb tension and adjust meandering movement, made from materials like PET, PEN, OPP, PI, PBT, polyester, polyamide, polyethersulfone, polyphenyleneoxide, polyphenylene sulfide, or flexible silicon, with specific dimensions to match or be smaller than the electrode sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If electrode sheets are connected directly using tapes in conventional methods, then the connection process is simple and quick, but stress concentration occurs at connection points leading to increased fracture risk
Solution Approach 1:
A flexible connection sheet is introduced as an intermediary component between the first and second electrode sheets. This flexible connection sheet absorbs stress and tension that would otherwise concentrate at the tape connection points, thereby reducing fracture risk while maintaining the simplicity of the taping connection method.
2Stability of the object's composition
If electrode sheets are connected with fixed rigid structures, then structural stability is improved, but meandering movement cannot be adjusted leading to increased defect rates
Solution Approach 1:
The flexible connection sheet is made from flexible materials such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), oriented polypropylene (OPP), polyimide (PI), or flexible silicon. These flexible films provide both structural stability and the adaptability to adjust meandering movement, allowing the connection to accommodate variations in electrode sheet positioning while maintaining overall structural integrity.
3Manufacturing precision
If tension is applied uniformly across electrode sheets, then manufacturing consistency is improved, but local stress concentration at connection points still occurs reducing overall reliability
Solution Approach 1:
The flexible connection sheet is strategically positioned at the connection region between electrode sheets to provide localized stress absorption. While tension is applied uniformly across the entire electrode sheet assembly during manufacturing, the flexible connection sheet specifically addresses local stress concentration at the connection points through its material properties and positioning, thereby improving connection point strength without compromising manufacturing precision.
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
Significantly reduces fracture risk at connection points and provides a margin for adjusting meandering movement, enhancing the stability and efficiency of the roll-to-roll process by distributing tension evenly.
Implementation Method 1
arranging a flexible connection sheet of a predetermined length between a first electrode sheet and a second electrode sheet... to absorb tension and adjust meandering movement
Data Source
AI summary
The present technology relates to a method for connecting electrode sheets in a roll-to-roll process, and the method includes: arranging a flexible connection sheet of a predetermined length between a first electrode sheet and a second electrode sheet; connecting the first electrode sheet to the flexible connection sheet by attaching one side of the first electrode sheet to one side of the flexible connection sheet using a first tape; and connecting the second electrode sheet to the flexible connection sheet by attaching one side of the second electrode sheet to the other side of the flexible connection sheet using a second tape.Further, the present technology relates to an electrode sheet manufactured by manufactured by the method of connecting electrode sheets.