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Lithium (Li) Evaporation Material, Pellets, 99.9%, sealed under mineral oil/inert gas
Product Type: Pure Metal Evaporation Material
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For material selection, deposition-source matching, pack-size confirmation or quotation support, contact our technical sales team.
INQUIRY: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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Lithium pellets are highly reactive with atmospheric moisture and oxygen, requiring storage under mineral oil or inert gas to prevent oxidation. All handling and deposition must be performed under strict dry inert atmosphere to avoid contamination and safety hazards.
- Inert Atmosphere Storage: Store the sealed ampoule in a dry, inert environment (argon or nitrogen) until immediately before use.
- Moisture and Oxygen Sensitivity: Exposure to ambient air causes rapid surface oxidation and potential pyrophoric reaction, so transfer all material within a glovebox maintaining <0.1 ppm O2 and H2O.
- Boat Material Compatibility: Use only tantalum, molybdenum, or tungsten boats for thermal evaporation to avoid alloying or contamination of the lithium melt.
- Thermal Evaporation Process Requirements: Evacuate the deposition chamber to high vacuum (below 10⁻⁵ Torr) before heating to prevent oxidation and ensure film purity.
Safe and effective evaporation of lithium pellets requires strict inert atmosphere handling from storage through deposition. Follow these steps to load and evaporate the material without contamination or safety incident.
Required Equipment: Glovebox with inert gas (Ar or N2) and <0.1 ppm O2/H2O, Sealed ampoule containing lithium pellets under oil/inert gas, Tantalum, molybdenum, or tungsten evaporation boat, High-vacuum thermal evaporation system
- Inspect the sealed ampoule
Visually confirm the ampoule is intact and the mineral oil or inert gas seal is unbroken before opening. - Transfer to glovebox
Transfer the unopened ampoule into a glovebox with <0.1 ppm O2 and H2O to maintain inert conditions. - Open and weigh pellets
Open the ampoule inside the glovebox and weigh the required amount of lithium pellets using an inert-atmosphere-compatible balance. - Load the evaporation boat
Load the weighed pellets into a clean tantalum, molybdenum, or tungsten boat, ensuring even distribution for uniform heating. - Evacuate and heat the chamber
Transfer the loaded boat into the vacuum chamber, evacuate to below 10⁻⁵ Torr, then heat the boat to the evaporation temperature of lithium (above 181°C) to initiate deposition.
What is the significance of the Z-ratio of 5.9 for lithium pellets in quartz crystal microbalance (QCM) monitoring during thermal evaporation?
The Z-ratio of 5.9 is a calibration parameter for QCM sensors that corrects for acoustic impedance mismatch between the crystal and the deposited film. This value must be entered into the deposition controller to ensure accurate rate and thickness readings for lithium films. The product specification confirms a Z-ratio of 5.9, which is specific to lithium and essential for thin-film process control.
What evaporation source and handling conditions are required to use these lithium pellets without oxidation or contamination?
The product is designed for thermal/resistive evaporation using a sealed ampoule or a Ta/Mo/W boat under strict dry inert handling conditions. The pellets are supplied sealed under mineral oil or inert gas to prevent reaction with air and moisture. Buyers must confirm their deposition system can maintain an inert environment (e.g., glovebox) and that the boat material is compatible with lithium.
How should these 99.9% purity lithium pellets be stored and handled to preserve reactivity and prevent degradation?
The pellets are sealed under mineral oil or inert gas and must be stored in an inert atmosphere (e.g., argon glovebox) away from moisture. Handling requires strict dry inert conditions to avoid exposure to air, as lithium is highly reactive. The product description advises reviewing safety data sheets and shipment conditions to ensure proper storage and handling protocols are followed.
This Lithium evaporation material (99.9% purity, pellets sealed under mineral oil/inert gas) is designed for thermal/resistive evaporation under strict inert handling, with a melting point of 181°C and density 0.53 g/cm³ requiring careful source matching and Z-ratio correction.
Positive
- High-purity lithium pellets: Supplied as 99.9% pure pellets with defined form, ensuring consistent evaporation behavior and minimal contamination in thin-film deposition.
- Sealed under mineral oil/inert gas: Packaging prevents oxidation and moisture adsorption, enabling stable storage and handling prior to deposition under dry inert conditions.
Trade-offs
- Requires strict inert handling: Lithium is highly reactive with air and moisture; evaporation must be performed under dry inert atmosphere using sealed ampoules or gloveboxes, increasing infrastructure requirements.
- Low melting point and density: With a melting point of 181°C and density 0.53 g/cm³, the material requires careful source design and Z-ratio (5.9) correction to achieve stable film deposition rates.
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 excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
