Battery Separator Film (BSF)
White oils for Battery Separator Films (BSF) in lithium-ion batteries
White oils are used in the wet manufacturing process of BSF, which allows lithium ions to pass between electrodes in batteries that power electric vehicles (EVs), computers, cell phones and other fixtures of the modern world. ExxonMobil white oils have expanded into this space with Primol™️ 352 and Primol™️ 382, which allow the highest-quality conduction while preventing internal short circuiting.
Products to meet your business needs
Primol 352 and Primol 382 white oils have key attributes for your BSF industrial needs.
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High flash point creates low flammability and better safety
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Low volatility allows for better separation from solvent used in manufacturing process, and better safety
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Narrow distillation cut allows for low volatility and favors more homogenous porosity in the film
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High viscosity avoids foam in the PolyEthylene (PE) solution and provides better compatibility with the PolyEthylene-PolyPropylene (PE-PP) polymer
Real-world applications for BSF
ExxonMobil plays a vital role in this critical and growing industry.
| Products | Applications |
|---|---|
| Primol 352 | BSF wet manufacturing |
| Primol 382 | Separation from solvent during BSF manufacturing |
Applicable white oils products
ExxonMobil’s high-quality white oils can be used in the manufacturing of lithium-ion battery BSFs. Learn more about our products, where you can buy them and review data sheets for more information.
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Why ExxonMobil
We have a comprehensive quality control system and reliable supply availability to show our commitment, long term, to the white oils business.
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