Battery Materials Sheet Laminating Machine

The sheet laminating machine is a device that firmly bonds a film material to the surface of a substrate using heat and pressure. By applying heat and pressure, it ensures that the film layer adheres tightly to the substrate, enhancing the physical, chemical, or aesthetic properties of the material. It is commonly used for producing decorative or protective coatings, such as packaging films, screen protectors, and solar panel encapsulation films.

Product Overview:

The CY-DPC-C200 sheet laminating machine is used for sheet material lamination. The device consists of a rubber roller and a heatable steel roller. The steel roller is heated by a resistance-type heating rod, and the machine can independently laminate single sheets, making it ideal for use in the battery material industry for heating and composite experimental samples.

Product Features:

Patented electric heating roller for precise temperature control, environmentally friendly and pollution-free;

Integrated electric control box and main machine, suitable for operation within a glove box, and easy to maintain;

Optional independent roll-to-roll device for continuous lamination of roll materials (optional feature);

Equipped with a precision pressure valve for uniform and adjustable lamination pressure;

Manual adjustment of the gap between the rollers;

High lamination precision and good temperature uniformity;

Leakage protection for safety and reliability;

Anti-burn protection design;

Compact and space-efficient design.

Purchase Information:

If you're interested in our sheet laminating machine, please contact us for more information and pricing. Phone: +86 18516380382
Email: Jimmy@cysitech.com
Contact Person: Jimmy Hao
WeChat: +86 18516380382
WhatsApp: +86 13939946898

Technical Parameters:

Main Components:

Application Fields:

Packaging Industry: Widely used in food packaging, pharmaceutical packaging, consumer goods packaging, etc.

Printing Industry: Suitable for laminating book covers, advertising flyers, business cards, etc.

Electronics: Used for producing protective films for mobile phones, tablets, etc.

Automotive Industry: For laminating automotive parts and interior components.

Medical Industry: For protecting medical devices, reagent packaging, etc.

Battery Industry: For battery packaging, lamination, and coating.

Application Case: 《Lamination Process for Lithium Battery Positive and Negative Electrodes Using Sheet Laminating Machine》

Process Steps:

1. Material Preparation:

Positive and Negative Electrode Materials: Prepare the positive electrode material (e.g., LiCoO₂, NCM, LFP) and negative electrode material (e.g., graphite, silicon-based materials). These materials should be cleaned and pretreated to ensure no impurities or contaminants are present on the surface before lamination.

Film Material: Choose appropriate film materials such as polyester film (PET), polyvinylidene fluoride (PVDF) film, ceramic films, or other conductive film materials, depending on the battery's needs (e.g., improving conductivity, enhancing high-temperature resistance).

Device Preparation: Ensure that all components of the sheet laminating machine (such as the heating system, pressure rollers, and cooling system) are in working condition and suitable for the lamination requirements of various film and electrode materials.

2. Surface Pre-treatment of Electrode Materials:

Cleaning: Use appropriate cleaning agents (such as solvents, ultrasonic cleaning, etc.) to remove grease, impurities, and oxides from the surface of the electrode materials to ensure cleanliness.

Drying: Dry the cleaned electrode materials to remove any remaining moisture, preventing bubbles or uneven film layers during lamination.

3. Setting the Laminating Machine Parameters:

Temperature Setting: Set the heating temperature according to the film material's characteristics. The temperature typically ranges from 100°C to 180°C, depending on the film's softening point.

Pressure Setting: Set the pressure according to the film and electrode material's thickness and flexibility. Too low a pressure may result in poor adhesion, while too high a pressure could damage the electrode material.

Speed Setting: Adjust the transfer speed to ensure that the film material is evenly applied to the electrode surface.

4. Lamination Process:

Feeding Film Material: Feed the film material into the laminating machine's feed section. The film is typically supplied in rolls, and the material tension must be uniform.

Heating and Softening the Film Material: Heat the film material to a softened state using the heating system, making it more pliable and easier to adhere to the electrode surface.

Pressure Lamination: After heating, the film material is pressed onto the electrode material using pressure rollers or hydraulic systems. Uniform pressure ensures strong adhesion between the film and electrode.

Cooling and Shaping: After lamination, the film material passes through a cooling section to solidify and set the film layer.

5. Inspection and Quality Control:

Uniformity Check: Ensure that the film covers the electrode material uniformly, without bubbles, wrinkles, or gaps.

Adhesion Test: Perform adhesion tests (e.g., tensile tests, peel tests) to confirm that the film layer adheres strongly to the electrode material.

Surface Quality Check: Inspect the surface of the electrode material for smoothness and ensure the film is firmly bonded to the substrate without contamination or peeling.

6. Post-processing:

Cutting and Shaping: After lamination, the electrode material may be cut or shaped into the required forms for further assembly.

Storage: Store the laminated electrode materials in a dry, moisture-proof environment to prevent the film material from absorbing moisture or getting damaged.

7. Final Product Output and Packaging:

Product Inspection: Inspect the final laminated product to ensure that the film layer meets the required quality standards, including thickness, adhesion, and surface smoothness.

Packaging: Package the finished electrode materials in moisture-proof bags or protective films to ensure stability during transportation and storage. 

Summary: In the process of lamination of lithium battery positive and negative electrode materials, the sheet laminating machine uses heating, pressure, and cooling steps to evenly apply a film to the electrode surface. This process not only protects the electrode materials, enhancing conductivity and stability but also improves battery performance and extends its lifespan. Each step's parameters and operations need to be precisely controlled to ensure stable and consistent film quality.