Redox-flow battery vanadium electrolyte

1. Product Overview
This high-purity vanadium electrolyte (V²⁺/V³⁺ and VO²⁺/VO₂⁺ in H₂SO₄) is the active energy-storage medium purpose-built for vanadium redox flow batteries (VRFBs). Its primary industrial use is long-duration (4–12 hour) stationary energy storage for grid-scale renewables, data centers, and industrial peak shaving. The key value proposition is infinite cycle life without capacity decay and complete fire safety—enabling 20+ years of daily deep discharge. Strategically, it is critical for de-risking renewable firming and replacing lithium-ion in high-cycled, safety-critical applications, directly supporting global net-zero mandates.

2. Key Specifications & Technical Characteristics

• Chemical composition: 1.6–2.0 M vanadium ions (V³⁺, VO²⁺) in 2–4 M H₂SO₄; fully formulated for immediate cell filling

• Purity grade: ≥99.9% vanadium (V₂O₅ precursor origin); ≤10 ppm total metals (Fe, Cr, Na, K); ≤50 ppm chloride; ≤5 ppm organic carbon

• Physical characteristics: Dark blue (charged state) / dark green (discharged state); low-viscosity aqueous solution (5–15 cP @ 25°C); density 1.35–1.45 g/cm³; non-flammable, non-explosive

• State of charge (SoC) balancing: Pre-mixed to 50% SoC as standard; custom SoC available

• Packaging options: IBC totes (1,000 L), ISO tank containers (20,000 L), or drum-free direct pump-to-system filling service

• Shelf life: >5 years in sealed, UV-protected HDPE containers at –10°C to 40°C; no degradation or sedimentation

3. Core Industrial Applications

• Renewable energy plants (solar/wind): Time-shift generation from peak sun/wind to evening demand. This electrolyte enables 10+ hour storage without the thermal runaway risk of Li-ion, and retains 100% capacity after 20,000 cycles.

• Grid & utility substations: Frequency regulation and black-start backup. Unlike alternatives, vanadium electrolyte suffers zero cross-contamination aging, allowing indefinite calendar life.

• Data centers & industrial microgrids: Upset ride-through and peak load shaving. The non-flammable chemistry eliminates NFPA 855 hazardous mitigation costs, delivering lower total cost of ownership (TCO) over 10 years.

• EV charging depots: Buffering ultra-fast chargers to avoid demand charges. Vanadium’s independent power and energy scaling allows oversizing energy capacity without oversizing power electronics.

4. Competitive Advantages

• Quality consistency: ISO 9001:2025 certified with batch-level ICP-MS and titration reports; each lot traceable to vanadium feedstock source.

• Supply reliability: Integrated supply chain from primary vanadium processing (non-Chinese sources available) to just-in-time electrolyte production; >99.5% on-time delivery record.

• Logistics capability: Global network of ISO tank depots; nitrogen-blanketed filling prevents oxidation; real-time GPS tracking for hazardous-but-non-flammable shipments.

• Price competitiveness: Long-term indexed contracts (vanadium pentoxide + conversion fee) with volume-based discounts down to $0.12/Wh (for >10 MWh orders).

• Sustainability: 95% vanadium recoverable from end-of-life electrolyte via proprietary precipitation process; zero liquid discharge manufacturing; EPD available upon request.

• Technical support: Full stack modeling support (polarization curves, pressure drop, shunt current), on-site commissioning electrolyte conditioning, and 24/7 remote quality surveillance.

5. Commercial & Supply Information

• Minimum order quantity (MOQ): 10,000 liters (10,000 L) – approximately 13.5 metric tons (MT)

• BULK 20MT loading capacity: 20 MT net = 14,800 liters per standard 20-ft ISO tank container (filled to 95% capacity for thermal expansion)