Description
ATOMFAIR LiPF6 (LITHIUM HEXAFLUOROPHOSPHATE) ELECTROLYTE SALTHIGH PURITY BATTERY GRADE
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TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or bulk chemical quotations.
EMAIL: INQUIRY@ATOMFAIR.COM
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR
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Store LiPF6 powder in an inert, dry atmosphere (argon or nitrogen) at temperatures below 30°C to prevent moisture absorption and thermal decomposition. Always handle the material in a controlled glovebox environment with oxygen and water levels below 1 ppm to avoid hydrolysis and HF formation.
- Moisture Sensitivity: LiPF6 rapidly hydrolyzes upon exposure to ambient moisture, releasing toxic hydrogen fluoride gas and degrading the salt's electrochemical performance.
- Thermal Stability: Prolonged exposure to temperatures above 50°C accelerates decomposition, producing reactive byproducts that compromise electrolyte safety and battery cycling stability.
- Containment Requirements: Use only hermetically sealed, corrosion-resistant containers (e.g., aluminum-lined or PTFE-coated) to minimize moisture ingress and chemical interaction with packaging.
LiPF6 is a moisture-sensitive, corrosive salt that must be manipulated exclusively under anhydrous inert atmosphere to prevent decomposition and ensure battery-grade purity. The following steps outline the essential sequence for safe transfer and dissolution into carbonate-based electrolyte solvents.
Required Equipment: Argon-filled glovebox with H2O and O2 < 1 ppm, Vacuum oven preheated to 80°C, Air-tight glass or PTFE vial with septum cap
- Inspect and Condition the Salt
Inspect the LiPF6 container for any signs of damage or discoloration before transferring it into the glovebox antechamber. - Transfer into Glovebox
Transfer the sealed container into the argon-filled glovebox and allow it to equilibrate for at least 10 minutes before opening. - Weigh Under Inert Atmosphere
Weigh the required amount of LiPF6 powder directly into a pre-dried, air-tight vial using a stainless steel spatula inside the glovebox. - Dissolve in Anhydrous Solvent
Slowly add the weighed LiPF6 to the pre-mixed carbonate solvent (e.g., EC:EMC 1:1 v/v) while stirring under argon to ensure complete dissolution and avoid local heating. - Seal and Store
Seal the prepared electrolyte immediately in a gas-tight container and store it in the glovebox at ambient temperature until use.
How does the 32.54 ppm moisture level in ATOMFAIR LiPF6 impact its electrochemical performance and shelf life compared to the standard <150 ppm specification?
The 32.54 ppm moisture content is significantly lower than the 150 ppm specification, directly reducing HF generation from hydrolysis and improving cycle life stability. With free acid at 46.55 ppm and minimized transition metals (e.g., Fe 1.63 ppm, Na 1.22 ppm), this salt supports high-capacity retention in carbonate electrolytes. The low moisture also enhances aluminum current collector passivation by limiting corrosive side reactions.
What carbonate solvent formulations are recommended for blending with ATOMFAIR LiPF6 to achieve optimal aluminum current collector passivation?
ATOMFAIR LiPF6 is designed for blending with standard carbonate-based solvents such as EC, DMC, EMC, and DEC to form non-aqueous electrolytes. The salt's high purity (99.97%) and low free acid (46.55 ppm) ensure that the protective passivation layer on aluminum current collectors forms reliably, preventing structural oxidation. Typical blending ratios like 3:7 EC/EMC balance ionic conductivity and viscosity for laboratory pouch cell prototyping.
What are the critical storage and handling protocols for ATOMFAIR LiPF6 to maintain its certified impurity levels?
The salt must be stored in an airtight container under an inert atmosphere (argon or nitrogen) within a dry room or glovebox to preserve its 32.54 ppm moisture level and prevent HF formation. Exposure to ambient air will rapidly increase moisture and free acid content, compromising the electrolyte's electrochemical stability. The material should be used promptly after opening and sealed under inert gas if not fully consumed.
This LiPF6 salt delivers benchmark purity (99.97%) and low moisture (32.54 ppm) for R&D lithium-ion electrolyte formulation, with proven passivation on aluminum current collectors, but requires rigorous dry handling to prevent hydrolysis and is designed specifically for carbonate-based solvent systems.
Positive
- High purity with low moisture: At 99.97% purity and 32.54 ppm moisture, this salt minimizes parasitic side reactions and hydrolysis, ensuring consistent ionic conductivity and long cycle life in prototype cells.
- Excellent Al foil passivation: The salt interacts with carbonate solvents to form a stable protective layer on aluminum current collectors, preventing anodic oxidation and corrosion during cycling.
Trade-offs
- Moisture-sensitive handling required: The material is hygroscopic and must be handled under controlled dry conditions to avoid acid formation and maintain purity, as evidenced by the stringent moisture (≤150 ppm) and free acid (≤150 ppm) specifications.
- Optimized for carbonate solvents: This salt is specifically formulated for high ionic conductivity in carbonate-blend electrolytes; performance in non-carbonate solvent systems is not validated and may require additional screening.
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). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
