Xnergy’s Sulfur–Polyacrylonitrile (SPAN) cathode powder is engineered for lithium–sulfur (Li–S) battery research, combining consistent performance with dependable worldwide logistics and documentation.
Key Benefits
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Advanced SPAN structure helps suppress polysulfide shuttling
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12-month shelf stability (sealed)
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Argon-protected aluminum foil bags for safe delivery
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Trusted by labs in the U.S., Europe, and Asia
Technical Specifications
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Sulfur content: 42–45 wt%
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Specific capacity: 550–600 mAh/g @ 0.1C
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Cycle life: ≥300 cycles @ 80% capacity retention
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True density: 0.6–0.8 g/cm³
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Particle size (D50): 15–20 μm
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Impurities (Fe/Al): <100 ppm
Values are typical; see TDS for methods and test conditions.
Performance Data
Figure: SPAN initial charge/discharge curve (coin cell, 0.1C, 25 °C; Li metal counter; 1.0–3.0 V window).
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Discharge plateau ~1.8–2.1 V; reversible charge up to ~3.0 V.
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Representative first-cycle capacity aligns with 550–600 mAh g⁻¹ @ 0.1C (protocol-dependent).
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Full test details available in the TDS.
Alt text: Initial charge/discharge curve of SPAN cathode at 0.1C showing ~2.0 V discharge plateau.
Packaging & Storage
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Standard packs: 50 g / 100 g / 500 g
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Packaging: Argon-protected aluminum foil bags, sealed for transport
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Storage: Keep sealed in a cool, dry place; open/handle in a dry, inert environment where possible
Applications
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Li–S cathode R&D
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Material screening, formulation optimization, cycling studies
Quality & Documentation
TDS/MSDS available on request. Additional export/compliance documents can be provided as needed.
Shipping & Support
Worldwide shipping with full export documentation. For quotes, lead times, and technical support: sales@xnergy.us.
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