The Use of PMMA Coating on PP Battery Separators Offers Advantages

1. Excellent Transparency:

PMMA coating possesses superior transparency, with a light transmittance of up to 90%-92%. This allows the battery separator to maintain its isolation function while allowing more light to pass through,  facilitating internal observation and inspection of the battery.

2. Good Light Resistance:

PMMA coating exhibits excellent light resistance, able to withstand long-term exposure to ultraviolet and natural light without yellowing or fading. This ensures the stability of the battery separator during long-term use.

3. Chemical Resistance:

PMMA coating is resistant to erosion by various chemicals, making it suitable for the complex chemical environment inside batteries.

4. Mechanical Properties:

PMMA coating possesses good mechanical properties, including strength, stiffness, and impact resistance, under normal conditions. This helps the battery separator maintain its integrity and isolation function when subjected to external impacts.

5. Processability:

PMMA coating is easy to process and form, allowing for the creation of various shapes and sizes through various processing methods such as thermoforming, cutting, and etching. This enables customized production of battery separators.

6. Improved Battery Performance:

By coating PP battery separators with PMMA, the pore structure and surface properties of the separator can be adjusted, improving ion conductivity, interfacial resistance, and other battery performance metrics.

7. Reduced Safety Risks:

PMMA coating can enhance the heat resistance and flame retardancy of battery separators, reducing safety risks in scenarios such as overheating or short circuits.

8. Environmental Friendliness:

PMMA is a recyclable material. The use of PMMA coating helps reduce waste and environmental impact, aligning with environmental protection requirements.

In summary, the use of PMMA coating on PP battery separators offers advantages in transparency, light resistance, chemical resistance, mechanical properties, processability, battery performance improvement, safety risk reduction, and environmental friendliness. These advantages make PMMA coating an important choice in the field of battery separators.