High-Purity PTFE Binder Powder For Dry Electrode (Model: HD-213E, Positive/Negative Pole)

HD-213E PTFE Binder Powder: Ultra-Low PFOA, High Adhesion. Tailored for Dry Electrode Positive/Negative Poles, Boosts Battery Performance & Reliability.

High-Purity PTFE Powder for Binder (Model: HD-213E) is a specialized polytetrafluoroethylene (PTFE) powder engineered exclusively as a binder for lithium-ion battery dry electrodes. Available in two tailored grades for positive and negative poles, this white PTFE powder leverages PTFE's inherent high adhesion, chemical inertness, and excellent mechanical flexibility to bond active electrode materials (e.g., cathode materials like NCM, anode materials like graphite) into stable, porous structures without compromising ion conductivity. With ultra-low PFOA content (≤25 ppb) and strict Grade A cleanliness standards, HD-213E complies with battery industry environmental and safety requirements. Unlike conventional wet electrode binders (e.g., PVDF), it eliminates the need for solvent use in dry electrode manufacturing, reducing production costs and environmental impact, making it a critical material for high-performance, eco-friendly lithium-ion batteries.

What is HD-213E PTFE Binder Powder for Dry Electrode?
Polytetrafluoroethylene (PTFE) is a linear fluoropolymer renowned for its exceptional chemical stability and mechanical properties, derived from tetrafluoroethylene monomer polymerization. PTFE Powder for Binder HD-213E is a modified PTFE grade specifically optimized for the dry electrode manufacturing process-where it acts as a "glue" to bind active materials and conductive agents into a cohesive, flexible electrode sheet. Unlike PVDF binders that require NMP solvent dissolution in wet processes, HD-213E PTFE binder relies on its unique fibrous structure and high elongation to form interlocking bonds during dry pressing, enabling solvent-free production.

HD-213E is available in two precise formulations: one tailored for dry electrode positive poles (with higher tensile strength ≥25 MPa) and another for negative poles (with higher elongation ≥350%). Both grades feature controlled particle size (425-525 μm) and optimized volume density, ensuring uniform dispersion in electrode materials. Compared to other fluoropolymer binders like FEP (which lacks sufficient adhesion) or ETFE (with lower flexibility), HD-213E balances adhesion strength, mechanical resilience, and ion permeability-key requirements for dry electrode performance. Its ultra-low PFOA content (≤25 ppb) also meets global environmental regulations, addressing the industry's growing focus on eco-friendly material selection.
 

Key Properties of HD-213E PTFE Binder Powder
HD-213E's properties are precisely tailored for dry electrode binder applications, supported by scientific principles and verified technical data, ensuring optimal performance in both positive and negative poles:

● Ultra-Low PFOA Content & High Purity: PFOA content ≤25 ppb, far below industry limits, meeting global environmental standards (e.g., REACH). Grade A smoothness and cleanliness ensure no external contamination (dust, metal residues), preventing battery internal short circuits-critical for battery safety and lifespan. Low moisture content (≤0.030%) avoids moisture-induced side reactions in electrodes.

● Tailored Mechanical Properties for Positive/Negative Poles: Positive pole grade (HD-213E-P) offers tensile strength ≥25 MPa, providing structural stability for dense positive electrode materials; negative pole grade (HD-213E-N) features elongation at rupture ≥350%, adapting to the volume expansion/contraction of anode materials (e.g., graphite) during charge-discharge cycles. Both grades maintain adhesion even after 1000+ charge-discharge cycles.

● Optimized Particle Size & Dispersion: Average particle size of 425-525 μm ensures uniform dispersion in active materials, forming a continuous bonding network without agglomeration. This uniform dispersion enhances electrode conductivity and reduces internal resistance, improving battery rate performance.

● Excellent Chemical Inertness: Inert to electrolyte solutions (lithium hexafluorophosphate, carbonate solvents) and active electrode materials, preventing chemical reactions that degrade binder performance or battery capacity. The high C-F bond energy (485 kJ/mol) ensures long-term stability in the harsh battery environment.

● Solvent-Free Process Compatibility: Designed for dry electrode manufacturing, eliminating the need for toxic solvents (e.g., NMP) used in PVDF binder processes. This reduces production costs (no solvent recovery steps) and environmental impact, aligning with green manufacturing trends.

● Controlled Compression & Extrusion Performance: Highest compression ratio of 400:1 and tailored extrusion pressure (45.0-55.0 MPa for positive, 25.0-35.0 MPa for negative) ensure compatibility with industrial dry electrode pressing equipment, enabling consistent electrode sheet thickness and density.

Feature (F)

PTFE binder powder HD-213E (positive/negative pole grades); Grade A smoothness & cleanliness; average particle size 425-525 μm; PFOA ≤25 ppb; moisture ≤0.030%; positive pole: tensile strength ≥25 MPa, volume density 500±100 g/L, extrusion pressure 45.0-55.0 MPa; negative pole: tensile strength ≥24 MPa, elongation ≥350%, volume density 450±100 g/L, extrusion pressure 25.0-35.0 MPa; solvent-free, for dry electrode binders.

Advantage (A)

Ultra-low PFOA meets environmental standards; tailored properties for positive/negative poles; superior adhesion vs FEP/ETFE; solvent-free reduces production costs; uniform dispersion enhances conductivity; excellent chemical stability in battery electrolytes; compatible with industrial dry electrode processes.

Benefit (B)

Boosts battery cycle life (reduces capacity fade) via stable electrode bonding; improves battery safety by avoiding contamination; lowers manufacturing costs and environmental footprint (no solvent use); ensures consistent electrode performance via uniform dispersion; enables high-performance dry electrode batteries for EVs/energy storage.

Evidence (E)

Complies with REACH, RoHS, and battery industry environmental standards; PFOA content verified by third-party lab (test report available); a leading EV battery manufacturer using HD-213E achieved 1200+ charge-discharge cycles with only 8% capacity fade (vs 15% with PVDF wet process); dry electrode production line using HD-213E reduced manufacturing costs by 20% vs solvent-based processes; Grade A cleanliness certified via particle count testing (no particles >1μm).

HD-213E PTFE Binder Powder is exclusively designed for lithium-ion battery dry electrode production, a next-generation manufacturing technology that replaces traditional solvent-based processes. Its application advantages are distinct in both positive and negative pole production:
● Dry Electrode Positive Pole: HD-213E-P's high tensile strength (≥25 MPa) ensures the dense positive electrode (composed of active materials, conductive agents, and binder) maintains structural integrity during battery assembly and cycling. Its excellent adhesion prevents active material shedding, a common issue in high-energy-density cathodes (e.g., NCM811). The solvent-free process eliminates solvent-induced pore collapse, preserving the electrode's porous structure for efficient lithium-ion transport.

● Dry Electrode Negative Pole: HD-213E-N's high elongation (≥350%) accommodates the volume expansion/contraction (up to 10%) of graphite or silicon-based anode materials during charge-discharge cycles. This flexibility reduces electrode cracking and peeling, extending battery cycle life. Its low volume density (450±100 g/L) ensures uniform mixing with low-density anode materials, avoiding agglomeration.

● Broad Battery Applications: Suitable for high-performance lithium-ion batteries used in electric vehicles (EVs), energy storage systems (ESS), portable electronics, and aerospace. Enables batteries with higher energy density, longer cycle life, and improved safety-key requirements for EV and ESS markets.

1. Packaging: Double-layer sealed plastic bag inside, outer drum; 20kg net weight per drum. The sealed packaging ensures moisture resistance and prevents contamination.

2. Transportation: Avoid strong vibration, sunlight, and rain during transportation to prevent package damage; shipped as non-dangerous goods.

3. Storage: Store in a clean, cool, and dry warehouse; avoid contamination by dust, moisture, and external substances.

4. Shelf Life: 2 years from production date when stored as recommended.

We are a professional fluoropolymer manufacturer with rich experience in battery material applications, dedicated to providing high-quality PTFE binder solutions for the global battery industry:
● Tailored Solutions: Offer customized HD-213E grades for specific dry electrode formulations (positive/negative pole) based on customer needs.
● Strict Quality Control: Implement rigorous testing (PFOA content, particle size, mechanical properties) for each batch, with complete quality inspection reports available.
● Technical Support: Professional technical team provides on-site guidance on binder mixing ratios, dry pressing parameters, and process optimization.
● Environmental Compliance: All products meet global environmental standards (REACH, RoHS), with ultra-low PFOA content to support customers' green production goals.
● Reliable Supply Chain: Adequate stock and flexible production capacity to meet urgent customer demands; on-time delivery commitment.
● Thoughtful After-Sales Service: Provide prompt response to technical inquiries and quality issues, building long-term, reliable partnerships with customers.

Looking for high-purity PTFE binder powder for dry electrode manufacturing? Contact our professional team to get free samples of HD-213E (positive/negative pole grades) and detailed technical datasheets. We offer customized solutions, competitive pricing, and global delivery to support your dry electrode production needs. Whether you need assistance with material testing, process optimization, or bulk ordering, we are here to help. Send your inquiry now or call our sales representative directly to discuss your specific requirements!

25kg/woven bag, 800kg/pallet

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