Sodium metal is highly reactive with moisture and oxygen, requiring storage and handling under inert atmosphere. Ultra-thin sheets below 0.2 mm require current collector support to prevent mechanical deformation.

• Environmental Sensitivity: Store and handle sodium metal exclusively in an inert atmosphere (argon or nitrogen) glovebox with moisture and oxygen levels below 1 ppm to prevent oxidation and safety hazards.
• Mechanical Stability Requirement: Use aluminum or copper current collector supported sheets for active layer thicknesses at or below 0.2 mm to eliminate localized plastic deformation and macro-wrinkling during handling.

This procedure describes the safe transfer, placement, and integration of a sodium metal sheet into a half-cell assembly under inert atmosphere. Strict adherence to glovebox protocols is required to prevent material degradation and operator exposure.

Required Equipment: Argon-filled glovebox (O2 and H2O < 1 ppm), Ceramic or PTFE-coated tweezers, Stainless steel spatula

1. Glovebox Atmosphere Verification
   Verify that the glovebox atmosphere maintains oxygen and moisture levels below 1 ppm before introducing the sodium metal sheet.
2. Package Opening
   Open the vacuum-sealed or argon-filled packaging inside the glovebox using ceramic scissors to avoid contamination.
3. Sheet Inspection
   Inspect the sodium metal sheet for any discoloration, wrinkles, or tears using optical inspection within the glovebox.
4. Sheet Transfer to Assembly Area
   Transfer the sodium metal sheet to the cell assembly station using PTFE-coated tweezers, handling only by the edges or current collector tab.
5. Sheet Placement on Cell Stack
   Place the sodium metal sheet onto the pre-assembled cell stack with the active side facing the separator, ensuring planar alignment without folding.
6. Cell Sealing Initiation
   Proceed immediately to pouch cell heat-sealing or coin cell crimping to minimize exposure time of the sodium surface to the glovebox atmosphere.

This Atomfair sodium metal sheet offers customizable dimensions and collector substrate options (Al, Cu, or unsupported) to address plane-to-plane consistency in non-standard sodium-ion pouch cell testing, but requires careful handling for ultra-thin parameters and strict inert atmosphere storage due to alkali metal reactivity.

Positive

• Customizable dimensions for non-standard cells: Fully customizable length, width, and active thickness allow precise fitment for proprietary pouch-format validation workflows, boosting transfer kinetics and cycling stability.
• Multiple collector substrate options: Available with aluminum or copper foil current collectors, or as a free-standing matrix, enabling optimization for different electrochemical setups and handling requirements.

Trade-offs

• Ultra-thin sheets require collector support: For thickness parameters ≤0.2 mm, current-collector supported sheets are strictly recommended to eliminate localized plastic deformation and macro-wrinkling during handling.
• High-barrier packaging needed for storage: The sodium metal sheet is packaged in a primary protective substrate vial inside a high-barrier multi-layer aluminum foil pouch, indicating sensitivity to air and moisture that requires inert atmosphere storage and handling.

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).