PTFE Battery Separator Base Film 0.22μm, 100 mm Diameter, 100 Sheets
Product Overview
This hydrophilic PTFE separator membrane is supplied in a 100 mm diameter format with 100 sheets per pack. The specification covers chemical resistance, pH compatibility, wettability, and handling requirements.
Product Details
| Product name | PTFE Battery Separator Base Film 0.22μm, 100 mm Diameter, 100 Sheets |
| Product format | Diameter 100 mm/100 sheets 0.22um |
| Process and coating configuration | Uncoated membrane |
| Material | Polytetrafluoroethylene (PTFE) |
| Coating | None specified |
| Diameter | 100 mm |
| Pack quantity | 100 sheets |
| Nominal pore size | 0.22 μm; source also lists 0.2 / 0.45 μm |
| Wettability | Hydrophilic |
| pH range | 1-14 |
| Color / surface | White / smooth |
| Chemical resistance | Broad chemical compatibility; resistant to strong acid and strong alkali solutions |
| Membrane material | Expanded PTFE |
| Handling note | For aqueous filtration, hydrophobic PTFE should be pre-wetted with ethanol or isopropanol before use. |
Additional Information
PTFE membrane is suitable for many organic solvents and aqueous solutions. It is also suitable for venting or air-filtration applications where hydrophobic PTFE is required.
Important Note
Note: Slight variations may occur between different production lots of the battery separator. The performance indicators are guaranteed to comply with our product specifications.
Related Products
| Research Need | Related Product | Best For |
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| Compare nearby specifications | PTFE Battery Separator Base Film 0.22μm, 90 mm Diameter, 100 Sheets | Same PTFE separator membrane family for direct specification comparison. |
| Review same-family format | PTFE Battery Separator Base Film 0.22μm, 80 mm Diameter, 100 Sheets | Same PTFE separator membrane family for direct specification comparison. |
| Check alternate thickness | PTFE Battery Separator Base Film 0.22μm, 60 mm Diameter, 100 Sheets | Same PTFE separator membrane family for direct specification comparison. |
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TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official institutional quotations.
EMAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This hydrophilic PTFE membrane exhibits broad chemical resistance across pH 1-14 and withstands strong acid and alkali solutions. The 0.22 μm pore size and hydrophilic surface enable direct aqueous filtration without pre-wetting.
- pH Compatibility: The membrane is compatible with aqueous solutions across the full pH range of 1-14.
- Chemical Resistance: The expanded PTFE material resists strong acids and strong alkalis, ensuring durability in aggressive chemical environments.
- Wettability: The hydrophilic surface allows immediate wetting by water, eliminating the need for solvent pre-wetting for aqueous filtration.
- Pore Size: The nominal 0.22 μm pore size is suitable for microfiltration of particulates and microorganisms.
- Lot Variability: Slight variations may occur between production lots, but performance indicators are guaranteed to comply with specifications.
What is the maximum operating pH range for this PTFE battery separator membrane?
The membrane is compatible with a pH range of 1-14, as stated in the product specifications. This broad pH tolerance, combined with its resistance to strong acids and alkalis, makes it suitable for aggressive electrolyte environments common in battery research.
This 0.22 μm hydrophilic expanded PTFE separator in 100 mm diameter format offers broad chemical resistance (pH 1-14) and compatibility with strong acids, alkalis, and organic solvents, making it suitable for battery separator and filtration applications. However, the uncoated membrane requires pre-wetting with ethanol or isopropanol for aqueous filtration, and lot-to-lot variations are possible.
Positive
- Broad chemical resistance: Expanded PTFE withstands strong acids, strong alkalis, and many organic solvents across pH 1-14, enabling use in aggressive battery electrolyte environments.
- Hydrophilic wettability: The membrane is supplied hydrophilic, allowing direct aqueous filtration without pre-treatment, which simplifies processing in aqueous battery systems.
Trade-offs
- Pre-wetting required for hydrophobic use: For aqueous filtration, hydrophobic PTFE must be pre-wetted with ethanol or isopropanol before use, adding a preparation step and potential solvent compatibility considerations.
- Lot-to-lot variation possible: Slight variations may occur between production lots, which could affect reproducibility in research requiring strict consistency.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
