PVDF-HFP: The Copolymer Binder for Gel Polymer Electrolyte Membranes, Now Available in Indonesia

Aug 15

3 min read

Adding hexafluoropropylene (HFP) units to a PVDF chain disrupts its crystalline regularity, creating amorphous regions capable of swelling and absorbing large amounts of liquid electrolyte to form a soft, ion-conductive gel. This is exactly the principle behind gel polymer electrolyte (GPE) membranes, the technology used in lithium polymer batteries, the type of battery found in nearly every modern smartphone and laptop. PVDF-HFP (Polyvinylidene Fluoride-Hexafluoropropylene) is the copolymer behind this technology, offering easier dispersion in polar solvents, better hydrophobic properties, and superior mechanical performance compared to conventional PVDF.

Research labs in Indonesia have typically had to import PVDF-HFP with high purity and genuinely verified performance. That's starting to change.

ITNANO (CV. Inovasi Teknologi Nano), based at the NRE Lab in Medan, provides direct access to PVDF-HFP in Indonesia, complete with verifiable official specifications. Here's what PVDF-HFP actually is, why its copolymer structure matters, and where it's being used in research and industry today.

What Is PVDF-HFP?

PVDF-HFP is a copolymer built from the vinylidene fluoride units that make up conventional PVDF, interspersed with hexafluoropropylene units. This HFP insertion disrupts pure PVDF's crystalline regularity, resulting in a semi-crystalline structure with far larger amorphous regions, where liquid electrolyte molecules can be absorbed and trapped to form an ion-conductive gel.

Comonomer ratio and purity are the biggest factors in PVDF-HFP's performance, since both affect electrolyte absorption capacity and the mechanical stability of the resulting gel membrane. ITNANO's PVDF-HFP is supplied at above 99.5% purity, with a volume resistivity of 2.0 × 10¹² Ω, a melting point of 140-145°C, a thermal conductivity of 0.18 W/m·K, and a moisture content of only 0.03%, dissolving clear in polar solvents.

Where PVDF-HFP Is Being Used

Gel polymer electrolyte membranes

This is PVDF-HFP's most distinctive application: as the polymer matrix in gel polymer electrolyte (GPE) membranes for lithium polymer batteries, drawing on its amorphous regions that can absorb large amounts of liquid electrolyte while still maintaining mechanical integrity as a separator layer between anode and cathode.

Binder for battery and supercapacitor electrodes

Like conventional PVDF, PVDF-HFP is also used as a binder to hold active material together on battery and supercapacitor electrodes, with the advantage of easier dispersion in polar solvents and better mechanical properties than ordinary PVDF.

Why Get Genuine PVDF-HFP from ITNANO

The precise HFP comonomer ratio greatly determines the balance between electrolyte absorption capacity and the mechanical strength of the resulting GPE membrane, and a product with an inconsistent ratio can produce a membrane that's either too brittle or doesn't absorb electrolyte well enough. ITNANO provides PVDF-HFP with directly verifiable specifications, giving labs in Indonesia performance certainty for both GPE and electrode binder applications, without needing to wait through a long import process.

Whether you're developing gel polymer electrolyte membranes, formulating battery or supercapacitor electrode binders, or working on applications that require a fluorinated polymer with superior mechanical properties, ITNANO's PVDF-HFP gives you an assurance of authenticity and specification that imitation products can't guarantee, without the import wait.

See ITNANO's Binder product line for current specifications and pricing.

Get PVDF-HFP Today

Whether for gel polymer electrolyte membranes or battery and supercapacitor electrode binders, ITNANO gives you direct access to PVDF-HFP available in Indonesia.

📦 View product specifications at itnano.store

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ITNANO is a product line by NRE Lab (CV. Inovasi Teknologi Nano), based in Medan, North Sumatra, Indonesia, advancing local access to graphene, 2D materials, metal-organic frameworks (MOFs), and other advanced nanomaterials for research and industry.