Na₃V₂(PO₄)₂F₃ (NVPF) Cathode Material for Sodium-Ion Batteries with High Specific Capacity and Long Cycle Life

Name: NVPF Na₃V₂(PO₄)₂F₃ Cathode Material for Sodium-Ion Batteries

Material Type: Sodium Vanadium Fluorophosphate (Na₃V₂(PO₄)₂F₃, NVPF)

Product Code: NVPF-SIB

Product Introduction:

Na₃V₂(PO₄)₂F₃ (NVPF) is a vanadium fluorophosphate cathode material for sodium-ion batteries. The incorporation of fluorine stabilizes the crystal structure and raises the average working voltage compared to NVP, resulting in higher energy density. With D50 of 1.99 μm, BET surface area of 12.3 m²/g, and 2.55 wt% carbon coating, NVPF delivers ≥ 115 mAh/g at 0.2C over the voltage window 2.0–4.3 V with ≥ 90% initial Coulombic efficiency. Chemical composition by ICP: Na 16.8%, V 23.6%, P 14.2%.

Key Features:

Sodium vanadium fluorophosphate Na₃V₂(PO₄)₂F₃ — Na 16.8 wt%, V 23.6 wt%, P 14.2 wt%
Carbon-coated formulation — carbon content 2.55 wt%
0.2C discharge ≥ 115 mAh/g (2.0–4.3 V)
Initial Coulombic efficiency ≥ 90% at 0.2C
Fine particle size — D10 0.61 μm, D50 1.99 μm, D90 3.88 μm
High compacted density 2.05 g/cm³
Specific surface area 12.3 m²/g
Near-neutral pH (6.1)

Chemical Composition (ICP):

Particle Size Distribution (PSD):

Physical Properties:

Electrochemical Performance (Half-Cell, 0.2C, 2.0–4.3 V):

Values measured by half-cell testing at 0.2C, 2.0–4.3 V. For reference; not guaranteed unless otherwise specified.

Storage:

Store sealed in a cool, dry place away from moisture and direct sunlight.

Note: Specifications listed above are typical and for reference only. Actual electrochemical performance depends on the specific cell architecture, electrolyte formulation, binder/conductive-additive composition, coating thickness, calendering parameters, formation protocol, and testing conditions. For sodium-ion battery electrode preparation workflows, see also Xnergy’s related products in the Cathode Material Powder category, Anode Materials category, Binders category, and Current Collectors category. For electrode-coating equipment, see the Coating equipment category.