Imergy Uses Vanadium from Sludge for Flow Batteries
Imergy Power Systems says it has achieved a milestone in energy storage by developing a process for producing flow batteries with recycled vanadium from mining slag, oil field sludge, fly ash, and other forms of environmental waste.
Imergy says other manufacturers of vanadium flow batteries build their devices with virgin vanadium extracted from mining. It must then be processed to a 99-percent-plus level of purity. Through its R&D program, Imergy has developed a way to produce flow batteries with vanadium at a 98 percent purity level that can be harvested from environmental waste sites.
With this technology Imergy will able to lower the cost of its flow batteries from $500 per kWh to under $300 per kWh.
Imergy is targeting its flow batteries from low-grade vanadium at cell phone operators, solar power plant developers, microgrid owners and other customers who want to manage outages, curb peak power or reduce demand charges.
The waste-stream vanadium is also sustainable for the environment by using an existing product with little or no market value. Thousands of tons of vanadium are brought to the surface each year through worldwide petroleum operations. The mineral then sits in sludge deposits. Tons of vanadium also languish in copper mine tailings.
- 2015 Insider Knowledge
- There’s Money in the Trash
- Operationalizing EHS Management: Bridge the Gap from Strategy to Execution
- Top 10 Steps for a Successful EMIS Project
- Financing Environmental Resiliency and a Low-Carbon Future with Green Bonds
- Choosing the Correct Emission Control Technology
- Four Key Questions to Ask Before Your Next Energy Purchase
- The New Energy Future - Challenges and Opportunities in Corporate Energy Management
- 10 Tactics of Successful Energy Managers
- eBook: Five Key Considerations for Integrating Renewables into Your Procurement Strategy