Flow batteries are a promising new technology for grid storage. Rather than the standard batteries that store charge in a solid material, they use a solution to store that charge, making large-scale long-duration electricity storage much easier. Vanadium electrolytes have been the preferred choice so far, but affordable supplies are limited and a cheaper alternative will be needed for global scale-up, explains Nancy Stauffer at MIT who describes … [Read more...]
HBr Flow Batteries: long term storage for grids, compatible with hydrogen
The growth of intermittent wind and solar and the search for replacements for coal and gas points at storage solutions that can ensure a reliable supply of electricity at all times. Standard lithium-ion batteries have limitations. Put simply, the future demand for batteries (including for transport) is expected to far outstrip the supply of lithium. But hydrogen and bromine are abundantly available on a global scale. Helena Uhde and Veronika … [Read more...]
Critical Raw Materials for the energy transition: Europe must start mining again
A ramp up of the supply of critical raw materials (CRMs) is essential for the world’s energy transition. Wind and solar, batteries, digitalisation, transport and hydrogen cannot meet their targets without it. The EU defines 30 minerals as critical. To give one example, the global deficits in lithium supplies could surge more than 60-fold to 950,000 tons by 2030. Frank Umbach at EUCERS takes a thorough look at the issue. Europe represented just 5% … [Read more...]
Can Vanadium Flow Batteries beat Li-ion for utility-scale storage?
It’s taken 40 years for lithium-ion battery technology to evolve into its current state, powering everything from the smallest electronic devices to Tesla’s 100MW battery farm in southern Australia. But utility-scale Li-ion batteries are rare. 99% of grid storage today is pumped hydro, a solution that will always be limited by geographical and environmental constraints. For utility-scale chemical batteries to take off they need a new technology, … [Read more...]
