Overview
Sodium vanadium phosphate (Na3V2(PO4)3) is an inorganic compound recognized for its role in advanced battery technologies. It belongs to the NASICON family of materials, known for their robust framework and ionic conductivity. The compound's unique structure allows for reversible sodium-ion insertion/extraction, making it ideal for energy storage applications. Initially studied for its electrochemical properties, sodium vanadium phosphate has gained prominence as a cathode material in sodium-ion batteries. Its stability and efficiency address some limitations of lithium-ion alternatives, particularly in cost and resource availability.
Physical and Chemical Properties
Sodium vanadium phosphate typically appears as a gray or white crystalline powder with a density of approximately 3.2 g/cm³. Its insolubility in water and high thermal stability (up to 400°C) make it suitable for high-temperature applications. The material exhibits excellent ionic conductivity due to its open three-dimensional framework. Key electrochemical properties include a theoretical capacity of 117.6 mAh/g and a nominal voltage of 3.4 V vs. Na+/Na. These characteristics contribute to its efficiency in battery systems. The compound is also non-flammable, enhancing its safety profile compared to other battery materials.
Main Applications
The primary use of sodium vanadium phosphate is as a cathode material in sodium-ion batteries, which are emerging as sustainable alternatives to lithium-ion batteries. Its high energy density and long cycle life make it attractive for grid storage, electric vehicles, and portable electronics. Beyond batteries, the compound is explored in catalysis and solid-state ionics due to its unique structure. Research is ongoing to optimize its performance through doping or nanostructuring, which could expand its applications in renewable energy systems.
Safety and Storage
While sodium vanadium phosphate is generally stable, precautions are necessary to handle it safely. Avoid inhalation of dust and direct skin contact by using gloves and masks. The material should be stored in a dry, cool environment, sealed to prevent moisture absorption, which could degrade its performance. In case of accidental exposure, rinse affected areas with water and seek medical advice if irritation persists. Waste disposal should comply with local regulations for inorganic compounds, preferably through licensed hazardous material handlers.
B2B Procurement Guide
When procuring sodium vanadium phosphate, prioritize suppliers specializing in battery materials. Key specifications include purity (typically >99%), particle size distribution (affecting electrochemical performance), and certifications like ISO 9001. Request detailed technical data sheets and batch analysis reports. Pricing varies based on order volume and purity levels, with bulk purchases often discounted. Consider logistical factors such as packaging (moisture-proof bags) and lead times, especially for customized formulations. Establish long-term contracts with reliable suppliers to ensure consistent quality for industrial-scale battery production.
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