Description
ATOMFAIR® SINGLE-CRYSTAL NFM111 CATHODE POWDERRESEARCH GRADE MATERIAL
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This O3-phase single-crystal cathode material is used in sodium-ion battery research and exhibits a highly alkaline pH of 12.3. Its layered oxide structure necessitates strict moisture and carbon dioxide exclusion during storage and processing to preserve electrochemical performance.
- Moisture Sensitivity: Store and handle the material under dry inert atmosphere (e.g., argon or nitrogen) to prevent reaction with ambient moisture and carbon dioxide due to its high alkalinity.
- Dispersion Protocol: Adjust slurry preparation parameters to accommodate the single-crystal morphology, which may require longer mixing times to achieve homogeneous dispersion without fracturing particles.
- pH Compatibility: Verify compatibility of binders and solvents with the high-pH environment to avoid undesired side reactions during electrode fabrication.
How does the single-crystal morphology of ATOMFAIR NFM111 impact its initial discharge capacity and cycle life compared to polycrystalline sodium-ion cathode materials?
The single-crystal morphology provides enhanced structural stability, achieving 97.3% energy retention after 50 cycles at 45°C and 0.5C, while delivering an initial discharge capacity of 137.0 mAh/g at 0.1C. This trade-off yields superior long-term cycling performance at a moderate capacity level typical for O3-phase NFM111.
What are the critical voltage and electrolyte compatibility considerations for using single-crystal NFM111 in full-cell sodium-ion batteries?
The cathode is rated for an operating window of 2.0V to 4.0V, within which it delivers 137.0 mAh/g at 0.1C. The pH of 12.3 indicates basic surface chemistry, so electrolyte formulations must be stable against alkaline attack to avoid decomposition. The low residual sodium (0.4%) and moisture (286 ppm) minimize side reactions, but proper electrolyte selection is essential.
What storage and handling conditions are required to prevent degradation of single-crystal NFM111 cathode powder?
The powder has a pH of 12.3 and contains 286 ppm moisture and 0.4% residual sodium, making it hygroscopic and alkaline. It must be stored in a dry, inert atmosphere to avoid carbonation and moisture uptake. Handling should be performed in a glovebox or low-humidity environment to preserve the single-crystal structure and prevent contamination.
Single-crystal O3-phase NFM111 cathode material delivers 137.0 mAh/g initial discharge capacity at 0.1C with 95.0% ICE and 97.3% energy retention after 50 cycles at 45°C, but requires stringent dry-room handling due to pH 12.3 and 286 ppm moisture content.
Positive
- High-temperature cycling stability: Retains 97.3% of energy after 50 cycles at 45°C and 0.5C, demonstrating robust structural integrity under accelerated aging conditions.
- Minimal gas evolution and high tap density: Engineered for low outgassing during operation while achieving a tap density of 1.56 g/cm³, enabling higher volumetric energy density in electrode packing.
Trade-offs
- High pH requiring moisture-controlled processing: With a pH of 12.3 and residual sodium of 0.4%, the powder is highly alkaline and must be handled in dry-room or glovebox environments to prevent degradation or slurry gelation.
- Moisture-sensitive with 286 ppm water content: The as-received material contains 286 ppm moisture, necessitating immediate vacuum-drying prior to use and storage in hermetically sealed containers to avoid further uptake.
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).
