Description
ATOMFAIR Lithium-Rich Ferrate Pre-Lithiation AgentRESEARCH GRADE MATERIAL
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This material exhibits high pH (12.2) and low water content (≤150 ppm) requiring moisture-free storage to prevent degradation. Exposure to ambient air may cause rapid moisture uptake compromising electrochemical performance and creating alkaline residues.
- Moisture Sensitivity: Store under inert atmosphere (argon or nitrogen) with dew point below -60°C to maintain water content below 150 ppm.
- Alkaline Nature: Avoid contact with skin and eyes due to pH 12.2; use appropriate PPE including nitrile gloves and safety goggles.
- Containment Integrity: Keep container tightly sealed when not in use; use in glovebox with oxygen and moisture sensors.
- Temperature Stability: Material is stable at room temperature; avoid prolonged exposure above 40°C to prevent thermal decomposition.
- Handling Protocol: Weigh and transfer only in controlled environment to prevent static charge accumulation and powder dispersion.
This procedure outlines the controlled handling of the powder to maintain its integrity for use as a cathode pre-lithiation additive. All steps must be performed in an argon-filled glovebox with H2O and O2 levels below 0.1 ppm.
Required Equipment: Argon-filled glovebox, Analytical balance, Pre-dried glass vial, Sealable container
- Inspect Container
Inspect the sealed container for damage before introducing it into the glovebox. - Transfer Powder
Open the container only inside the glovebox and transfer the powder to a pre-dried glass vial. - Weigh Material
Weigh the required amount of powder using an analytical balance and return the remainder to the sealed container. - Store Residual Material
Remove the container from the glovebox and store it in a dry, inert environment at room temperature.
Why does this lithium-rich ferrate pre-lithiation agent deliver a first charge capacity of 728 mAh/g but only 51 mAh/g on discharge?
This asymmetry is intentional for pre-lithiation. The 728.01 mAh/g first charge capacity (≥700 mAh/g standard, 2.5V–4.4V) provides excess lithium to compensate for anode SEI formation, while the 51.2 mAh/g discharge capacity (≤100 mAh/g standard) confirms minimal reversible capacity, ensuring it acts as a sacrificial lithium source rather than a cathode active material.
How does the particle size distribution of this lithium-rich ferrate powder affect its integration into cathode coatings?
The D50 of 9.36 μm (standard 7.5–10.5 μm) and D90 of 17.52 μm (≤19 μm) ensure uniform dispersion within the cathode slurry without causing coating defects from oversized particles. The D10 of 3.92 μm (standard 3.5–5.5 μm) provides sufficient fine particles for effective mixing with active cathode materials, achieving consistent electrode porosity and lithium delivery.
What are the critical storage and handling requirements for this lithium-rich ferrate pre-lithiation powder to maintain its performance?
To preserve the water content below the 150 ppm specification, the powder must be stored in a dry, inert atmosphere such as an argon-filled glovebox. The high pH of 12.20 and trace metal content (e.g., Ca 91.03 ppm, Na+K 43.31 ppm) necessitate the use of corrosion-resistant containers and protective equipment to avoid contamination and ensure safety during handling.
This lithium-rich ferrate powder is engineered as a pre-lithiation additive for compensating irreversible lithium loss during SEI formation, delivering an initial charge capacity of 728.01 mAh/g. Its tightly controlled particle size and low specific surface area make it suitable for reproducible half-cell benchmarking, but its high alkalinity (pH 12.20) and low discharge capacity (51.2 mAh/g) require careful handling and restrict its role to sacrificial anode compensation rather than active cycling.
Positive
- High initial charging capacity: Delivers 728.01 mAh/g at 0.05C (2.5V-4.4V), exceeding the ≥700 mAh/g standard, enabling effective compensation for irreversible lithium consumption during SEI formation.
- Controlled, research-grade powder properties: Tightly specified particle size (D50 9.36 μm), low specific surface area (0.79 m²/g), and low resistivity (1.13 Ω·cm) ensure consistent slurry processing and electrochemical benchmarking.
Trade-offs
- Highly alkaline powder (pH 12.20): The strongly basic nature demands moisture-free handling and storage; exposure to ambient air can degrade performance and cause corrosion of equipment.
- Low reversible discharge capacity: First discharge capacity is only 51.2 mAh/g (≤100 mAh/g standard), confirming this material is a sacrificial pre-lithiation additive, not a reversible cathode active material.
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 for completely unopened items).
