This material requires strict exclusion of oxygen and moisture to prevent surface oxidation and degradation. Storage in an inert atmosphere is mandatory to maintain electrochemical performance and safety.

• Atmosphere Constraint: Store exclusively in an argon-filled glovebox with oxygen and moisture levels below 1 ppm to prevent rapid oxidation of the sodium surface.
• Temperature Constraint: Maintain storage temperature below 30°C to avoid softening or flow of the sodium metal, which can compromise foil integrity.
• Mechanical Integrity Constraint: Avoid bending or creasing the foil coil during handling to prevent cracking or delamination from the current collector substrate.
• Contamination Constraint: Use only clean, dry tools and gloves when handling to prevent introduction of particulates or reactive contaminants that could cause localized corrosion.

This procedure describes the safe extraction and preparation of sodium metal foil from its packaging for use in half-cell assembly. Strict adherence to inert atmosphere conditions is required throughout all steps.

Required Equipment: Argon-filled glovebox (O2/H2O < 1 ppm), Heat table or hot plate capable of 50-60°C, Ceramic or PTFE-coated scissors, Flat PTFE or stainless steel spatula

1. Transfer to Glovebox
   Transfer the sealed package containing the sodium foil coil into the argon glovebox without exposing it to ambient air.
2. Preheat Work Surface
   Set the heat table or hot plate to 55°C and allow it to stabilize for at least 10 minutes before opening the package.
3. Open Package Under Inert Gas
   Open the inner packaging only inside the glovebox, ensuring the foil remains under argon atmosphere at all times.
4. Warm Foil for Removal
   Place the foil coil on the preheated surface for 2-3 minutes to soften any adhesive or static bond between layers.
5. Unroll and Cut Foil
   Unroll the desired length of foil onto a clean PTFE sheet and cut it to size using ceramic scissors in a single smooth motion.
6. Inspect for Defects
   Inspect the cut piece under glovebox lighting for any visible creases, tears, or discoloration indicating oxidation.
7. Transfer to Cell Assembly Station
   Transfer the prepared sodium foil piece directly to the cell assembly station using a flat spatula, avoiding contact with gloved fingers.

The ATOMFAIR NA-B500 series delivers 99.9% pure sodium metal strips with aluminum or copper current collector options, optimized for sodium-ion and solid-state battery half-cell research. Its uniform microstructure and vacuum-sealed packaging support stable electrochemical performance, though the material's extreme air sensitivity mandates argon glovebox storage and heated handling for film removal.

Positive

• High-purity homogeneous sodium matrix: The 99.9% research-grade purity with uniform elemental distribution minimizes parasitic electronic leakage, enhancing half-cell stability and transfer kinetics in sodium-ion R&D.
• Optimized microstructure with collector backing: Standard aluminum or copper foil substrate backing ensures mechanical flatness and prevents tearing during delicate film handling, solving a common pain point in electrode preparation.

Trade-offs

• Requires argon glovebox storage: The sodium metal strip is highly reactive to air and moisture, necessitating storage and handling exclusively within an inert argon glovebox to prevent oxidation and degradation.
• Heated handling needed for film removal: Film removal from the protective barrier requires a heat table at 50°C or above, adding an extra processing step and thermal management consideration during lab deployment.

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).