Carbon Coated Aluminum Foil Battery Current Collector - 1-8μm Coating, <0.5 Ω*cm² Resistance for Semi-Solid Sodium Batteries
Price:
1-1000USD/Negotiable
MOQ:
100g
Delivery Time:
5-7 days
Brand:
XWELL
Product Description
Product Overview
Carbon-coated aluminum foil (CCAF) is a high-performance current collector engineered specifically for semi-solid-state sodium batteries and next-generation energy storage systems. This advanced material integrates a nano-carbon layer (5-20 μm) onto ultra-thin aluminum foil (8-30 μm), effectively addressing critical challenges including interfacial resistance, sodium dendrite growth, and electrode delamination in SSSBs.
Technical Specifications
| Parameter | Specification |
|---|---|
| Base Material | High-purity Al foil (≥99.6%) |
| Coating Composition | Conductive carbon black/graphite + polymer binder |
| Coating Thickness | 1-8 μm (single/double-sided) |
| Surface Roughness (Rz) | ≤3.0 μm (glossy finish) |
| Areal Resistance | <0.5 Ω*cm² (vs. >2 Ω*cm² for bare Al) |
| Thermal Stability | Stable up to 180°C (SSSB processing) |
Material Advantages
Semi-Solid-State Battery Optimization
- Reduces interfacial impedance by >50% compared to bare Al foil in sulfide/oxide-based SSSBs
- Enhances sodium-ion diffusion kinetics (tested at >5 mA/cm² current density)
Sodium Battery Performance
- Compatible with Na₃V₂(PO₄)₃ (NVP) and hard carbon electrodes
- Mitigates Na dendrites via uniform current distribution (demonstrated >500 cycles at 1C)
Research-Grade Customization
- Surface treatments: Lithiophilic coatings (e.g., CuO nanoneedles) for hybrid Li/Na systems
- Thickness variants: Sub-8μm Al foil for ultra-high-energy-density prototypes
Applications
- Semi-Solid-State Sodium Batteries: Lab-scale prototyping of 200+ Wh/kg cells
- Hybrid Electrodes: Dual-ion (Li⁺/Na⁺) battery research
- Dry Electrode Manufacturing: Solvent-free processing for SSSBs
Storage Requirements
Store in dry environment (<30% RH) at 25°C
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
GUANGDONG XWELL TECHNOLOGY CO., LTD.
Location
Room 316, Building 3, No. 801, Qiaoxing Avenue, Xiaoluo Village, Shatou Street, Panyu District, Guangzhou
Contact Person
Sammy Qin