SPAN Cathode Powder for Li–S Batteries

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.

• High-performance SPAN cathode powder for Li–S research

• >50 wt% S · >700 mAh/g @0.1C · ≥300 cycles @80% retention

• Argon-protected aluminum foil bags · 12-month shelf stability · Global shipping

Key Benefits

• Advanced SPAN structure helps suppress polysulfide shuttling

• 12-month shelf stability (sealed)

• Argon-protected aluminum foil bags for safe delivery

• Trusted by labs in the U.S., Europe, and Asia

Technical Specifications

• Sulfur content: > 50 wt%

• Specific capacity: ＞ 700 mAh/g @ 0.1C

• Cycle life: ≥300 cycles @ 80% capacity retention

• True density: 0.6–0.8 g/cm³

• Particle size (D50): 15–20 μm

• 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).

• Discharge plateau ~1.8–2.1 V; reversible charge up to ~3.0 V.

• Representative first-cycle capacity aligns with >700 mAh g⁻¹ @ 0.1C (protocol-dependent).

• 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

• Standard packs: 50 g / 100 g / 500 g

• Packaging: Argon-protected aluminum foil bags, sealed for transport

• Storage: Keep sealed in a cool, dry place; open/handle in a dry, inert environment where possible

Applications

• Li–S cathode R&D

• 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.