Description
Atomfair Silicon/Carbon (Si/C) Anode ElectrodeRESEARCH GRADE MATERIAL
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TAILORED SOLUTIONS FOR RESEARCH
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This silicon/carbon composite anode electrode delivers a specific capacity of 1100 mAh/g with a single-side areal density of 4.5 mg/cm² and an active material ratio of 90.3%. The electrode is packaged in a moisture-barrier aluminum laminated bag with desiccant and must remain sealed until use to preserve its dry state.
- Environmental Storage Constraint: Store the sealed aluminum laminated bag with desiccant in a dry environment to prevent moisture ingress and electrode degradation.
- Volume Expansion Characteristic: Volume expansion during cycling is limited to less than 30% to minimize mechanical degradation and maintain electrode integrity.
- Areal Density and Active Material Ratio: Single-side areal density of 4.5 mg/cm² with 90.3% active material ratio ensures high electrochemical capacity and experimental reproducibility.
- Current Collector Specification: The 6 μm copper foil current collector provides mechanical support and electrical conductivity for the electrode.
- Packaging and Number of Units: Each pack contains five pre-cut electrodes ready for direct use in lithium-ion battery cell assembly.
How does the trade-off between the 1100 mAh/g specific capacity and the <30% expansion rate impact cycle life and calendering requirements for this Si/C anode?
The Si/C composite structure limits volume expansion to <30% during cycling, enabling a long cycle life of >80% capacity retention after 2000 cycles at 0.5C rate without requiring specialized calendering. The 90.3% active material ratio and dry uncalendered format are optimized for this performance trade-off, allowing direct use in standard cell assembly while maintaining high capacity.
Can this dry uncalendered Si/C anode be integrated into standard coin cell or pouch cell formats, and what electrolyte compatibility constraints should be considered?
Yes, the pre-cut electrodes are compatible with standard electrolyte systems and can be used directly in coin cell or pouch cell assemblies. The 6 μm copper foil current collector and single-side coating with 4.5 mg/cm² areal density are designed for standard lab-scale testing, though custom compaction densities and pre-lithiation options are available upon request for specific integration needs.
What storage and handling precautions are required to preserve the electrochemical performance of this Si/C anode before use?
The electrodes are shipped in aluminum laminated bags with desiccant to minimize moisture exposure, and inert gas packaging is optionally available for enhanced stability. To prevent capacity fade and SEI instability, the dry uncalendered format should be stored in a dry, inert atmosphere and handled with moisture-sensitive protocols during cell assembly.
The Si/C anode delivers 1100 mAh/g specific capacity with <30% volume expansion and >80% capacity retention after 2000 cycles, but the uncalendered dry format necessitates post-processing for optimal electrode density, and the standard desiccant packaging indicates moisture sensitivity that may require inert gas handling for long-term stability.
Positive
- High Specific Capacity: 1100 mAh/g typical specific capacity significantly exceeds conventional graphite anodes, enabling high-energy-density battery research.
- Low Expansion and Long Cycle Life: The Si/C composite structure limits volume expansion to <30% and maintains >80% capacity retention after 2000 cycles at 0.5C, supporting extended cycling studies.
Trade-offs
- Dry Uncalendered Format: Supplied as a dry uncalendered electrode, requiring additional calendering processing to achieve target porosity, density, and adhesion for consistent electrochemical performance.
- Moisture Sensitivity: Standard packaging uses an aluminum laminated bag with desiccant; inert gas packaging is optional, indicating the electrode is moisture-sensitive and requires controlled storage and handling to prevent degradation.
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).
