Battery powder materials
Carbon Coated Sodium Vanadium Phosphate Na3V2PO43 Powder Sodium Ion Battery Cathode Material
Item Number : CL10
Price varies based on specs and customizations
- Purity
- ≥ 99.9% (3N)
- Particle Size (D50)
- 1.0 - 2.0 µm
- Carbon Content
- 3.0 wt%
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Product Overview
This high-purity carbon-coated sodium vanadium phosphate powder is a premier NASICON-structured cathode material engineered specifically for high-rate and long-life sodium-ion energy storage systems. Featuring an optimized 3 wt.% conductive carbon surface layer, the material resolves the intrinsic electronic conductivity limitations of pristine polyanionic phosphates while preserving open, three-dimensional sodium-ion diffusion pathways. The active material provides exceptional structural integrity and flat voltage plateaus during electrochemical charge and discharge cycling.
Developed for advanced materials research, electrochemistry laboratories, and industrial pilot-scale battery manufacturing, this active powder delivers reproducible performance across standard electrode fabrication workflows. It integrates seamlessly into slurry preparation, doctor-blade coating, and calendering operations, facilitating the production of uniform, high-density electrodes for coin cells, pouch cells, and cylindrical sodium-ion battery prototypes.
Rigid synthesis control guarantees tight stoichiometry, ultra-low transition-metal and alkali-metal impurity levels, and a narrow particle size distribution centered at 1 to 2 microns. This stringent quality assurance ensures exceptional batch-to-batch consistency, minimal parasitic side reactions at high operating voltages, and robust thermal stability under demanding electrochemical testing regimens.
Key Features
- Robust NASICON Framework: The open three-dimensional crystal structure consisting of corner-sharing vanadium octahedra and phosphate tetrahedra delivers rapid multi-channel sodium-ion transport with minimal lattice volume change during cycling.
- Uniform In-Situ Carbon Coating: A homogeneous 3.0 wt.% carbon shell envelopes each submicron particle, establishing an intimate conductive network that maximizes active material utilization and rate capability.
- Narrow 1–2 µm Particle Distribution: Controlled submicron-to-micron particle size ensures rapid solid-state ionic diffusion lengths, uniform packing density, and smooth slurry rheology without agglomeration.
- High Chemical Purity (≥ 99.9%): Produced under strict cleanroom conditions with ppm-level tolerance on critical metallic impurities such as iron, copper, and nickel, preventing premature electrolyte degradation and micro-shorting.
- Stable High-Voltage Redox Plateau: Operates via the reversible V4+/V3+ redox couple at approximately 3.4 V vs. Na/Na+, delivering reliable energy output and high round-trip energy efficiency.
- Superior Thermal and Structural Stability: The covalent polyanionic phosphate framework provides intrinsic thermal safety in fully charged states, resisting oxygen release even under elevated operational temperatures.
- Exceptional Slurry Processing Compatibility: Demonstrates superior dispersion characteristics in standard solvent-binder systems (such as NMP/PVDF), yielding mechanically robust, crack-free electrode coatings on aluminum current collectors.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| High-Rate Sodium-Ion Batteries | Fabrication of fast-charging cathode electrodes for power-oriented sodium-ion cells and pulse-power energy systems. | High 3D ionic diffusion coefficient enables stable discharge capacities at high C-rates without structural collapse. |
| Grid Energy Storage Systems (BESS) | Prototype development of large-format stationary energy storage cells targeting long cycle life and low system cost. | Polyanion framework ensures superior capacity retention over thousands of deep-discharge cycles at ambient and elevated temperatures. |
| Low-Temperature Battery R&D | Formulating sodium-ion chemistries capable of operating in sub-zero and extreme environmental conditions. | Low activation energy for sodium extraction/insertion maintains ion kinetics down to -20°C and below. |
| Electrochemical Kinetic Studies | Fundamental characterization of solid-state diffusion kinetics, phase transitions, and interphase formation via half-cell and symmetric cell testing. | High 3N chemical purity and precise stoichiometry eliminate parasitic baseline noise in analytical electrochemical measurements. |
| Hybrid Supercapacitor & Dual-Ion Devices | Use as a faradaic cathode coupled with capacitive carbon anodes in high-energy density asymmetric supercapacitors. | Combines high operating voltage with rapid charge-transfer kinetics to bridge the gap between batteries and supercapacitors. |
| Electrode Processing Optimization | Calendering, compaction density, and binder optimization studies using automated laboratory roll presses and coating lines. | Consistent 1–2 µm morphology provides predictable rheological behavior and uniform electrode porosity. |
Technical Specifications
| Specification Parameter | Value / Details |
|---|---|
| Product Identifier | CL10 |
| Chemical Formula | Carbon-coated Na3V2(PO4)3 (C-NVP) |
| Core Composition Molar Ratio | Na : V : P : O = 3.0 : 2.0 : 3.0 : 12.0 (mol) |
| Purity (wt.%) | ≥ 99.9% (3N Grade) |
| Carbon Content (wt.%) | 3.0 wt.% (C : Na3V2(PO4)3 = 3 : 97 wt%) |
| Average Particle Size (D50) | 1.0 – 2.0 µm |
| Physical Appearance | Greyish-black fine powder |
| Crystal Structure | NASICON (R-3c space group) |
| Theoretical Capacity | ~117.6 mAh/g (based on two-electron reaction) |
| Operating Voltage Range | 2.5 V – 3.8 V vs. Na/Na+ |
| Impurity: Iron (Fe) | ≤ 10 ppm |
| Impurity: Copper (Cu) | ≤ 6 ppm |
| Impurity: Nickel (Ni) | ≤ 20 ppm |
| Impurity: Silicon (Si) | ≤ 30 ppm |
| Impurity: Aluminum (Al) | ≤ 35 ppm |
| Impurity: Zirconium (Zr) | ≤ 18 ppm |
| Impurity: Magnesium (Mg) | ≤ 15 ppm |
| Impurity: Calcium (Ca) | ≤ 7 ppm |
| Impurity: Potassium (K) | ≤ 5 ppm |
| Impurity: Barium (Ba) | ≤ 5 ppm |
Why Choose This Product
- Engineered for High-Precision Research: Manufactured with tight stoichiometric control and comprehensive trace element monitoring to ensure that experimental cell metrics reflect true material kinetics rather than impurity artifacts.
- Optimized Carbon Nanolayer: The continuous, uniform carbon matrix eliminates localized high-resistance zones, maximizing rate capability and preventing active material agglomeration during slurry mixing.
- Seamless Workflow Integration: Ideal for pairing with laboratory vacuum mixers, precision doctor blade coaters, and heated roll presses, facilitating reliable electrode fabrication with high active material mass loading.
- High Batch-to-Batch Reproducibility: Every production lot undergoes rigorous analytical screening, guaranteeing consistent particle size distribution, carbon content, and phase purity across long-term research projects.
- Comprehensive Material Solutions: Supported by extensive application expertise across the entire sodium-ion battery manufacturing workflow, from active powder synthesis to coin-cell and pouch-cell assembly.
Contact our technical sales team today to request a quote, order evaluation samples, or discuss custom battery material and processing requirements.
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