Reciprocating Laminating Rollers for Bubble-Free Fuel Cell Lamination
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Solution Overview
Problem
The existing flat lamination process for fuel cell production is inefficient, requiring high pressure and temperature, leading to long lamination times and low yields due to difficulty in bubble removal.
Innovation Solution
A laminating device with a moving laminating roller that reciprocates between an adhesion roller and a fixed roller, allowing for precise alignment and synchronous rolling to improve lamination efficiency and quality, utilizing sensors and controllers for precise positioning and temperature-adjustable rollers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If flat lamination is used with high pressure and temperature, then lamination strength is improved, but lamination time increases and productivity decreases
Solution Approach 1:
The patent introduces a moving laminating roller that reciprocates between an adhesion roller and a fixed laminating roller, transforming the static flat lamination process into a dynamic rolling process. This dynamic rolling action applies pressure more effectively and uniformly, achieving strong lamination bonds while reducing the required pressure and time, thus improving productivity without sacrificing lamination strength.
Solution Approach 2:
The patent changes the lamination parameters by using a rolling mechanism instead of flat pressing. The moving roller system allows for controlled pressure application, temperature management, and reciprocating motion that enhances material penetration and bonding. These parameter changes enable faster lamination cycles with maintained or improved bond strength, resolving the contradiction between strength and productivity.
2Device complexity
If flat lamination is used, then equipment complexity is reduced, but bubble removal becomes difficult and lamination quality deteriorates
Solution Approach 1:
The moving laminating roller introduces dynamic motion to the lamination process, allowing bubbles to be pushed out during the reciprocating action. The roller moves back and forth, creating pressure waves and material flow that facilitate bubble evacuation. This dynamic approach improves lamination quality by enabling effective bubble removal while adding only moderate complexity through a single moving roller component.
3Strength
If high pressure is applied during flat lamination, then lamination strength is improved, but lamination time increases and energy consumption increases
Solution Approach 1:
The patent changes the pressure application method from static high pressure to dynamic rolling pressure. The moving roller delivers pressure in a controlled, reciprocating manner that is more efficient at penetrating materials and bonding surfaces. This parameter change allows for reduced overall pressure and shorter application time while maintaining lamination strength, thereby reducing both lamination time and energy consumption.
4Strength
If high temperature is used in flat lamination, then material adhesion is improved, but energy consumption increases and process control becomes more difficult
Solution Approach 1:
The patent modifies the thermal parameters by using lower temperatures combined with the mechanical action of the moving roller. The reciprocating rolling motion enhances material flow and contact, improving adhesion without relying solely on high temperature. This parameter change reduces energy consumption for heating while maintaining or improving material adhesion, and simplifies temperature control requirements.
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 device reduces lamination time, increases efficiency, and enhances the alignment accuracy of materials, thereby improving the quality and yield of the lamination process while minimizing bubble formation.
Implementation Method 1
an adhesion roller, disposed controllably to rotate around its own axis, used to adhere a sheet material
Implementation Method 2
the moving laminating roller and the fixed laminating roller rotate synchronously making the sheet material laminate onto the second film material
Implementation Method 3
temperature is greater than or equal to 100 °C
Data Source
Figure 1~3
Figure 4
AI summary
A laminating device, comprising: an adhesion roll (10), which is disposed so as to controllably rotate about the axis thereof and is used for adhering a sheet material (400); a fixed laminating roll (20), which is disposed so as to controllably rotate about the axis thereof and is used for winding a second film material (300); and a moving laminating roll (30), which is disposed so as to controllably rotate about the axis thereof and reciprocatingly move between the adhesion roll (10) and the fixed laminating roll (20). The moving laminating roll (30) comprises a pickup position and a laminating position during the process of moving between the adhesion roll (10) and the fixed laminating roll (20); when the moving laminating roll (30) is at the pickup position, the moving laminating roll (30) abuts against the adhesion roll (10) so as to transfer the sheet material (400) on the adhesion roll (10) to the moving laminating roll (30); and when the moving laminating roll (30) is at the laminating position, the moving laminating roll (30) abuts against the fixed laminating roll (20) so as to laminate the sheet material (400) on the moving laminating roll (30) onto the second film material (300) on the fixed laminating roll (20). The described technical solution uses the moving laminating roll (30) and the fixed laminating roll (20) to roll the sheet material (400) and the second film material (300), thus preventing the production of bubbles, which helps to improve the quality of lamination and lamination efficiency.