Searching for better and cheaper batteries

Batteries are needed to build in flexibility in the energy system. In the European NAIADES project, EnergyVille researchers are testing and improving a new type of battery technology: sodium-ion. 

Laptops, drills, electric cars: each of these uses rechargeable lithium-ion-batteries as a permanent energy source. Lithium is extremely light and offers high energy density, but supply is limited and the technology is therefore expensive. An alternative and cheaper type of battery based on sodium is under development. Its higher relative density makes it less suited to the usual applications, but it does offer interesting possibilities for storing renewable energy.

EnergyVille's role

EnergyVille is developing the sodium-ion battery using multiple battery cells and is focusing on its energy management. EnergyVille is examining which properties the proposed prototype must have, and is developing a management system to maximise the battery's life. Result: a cheaper, better-performing battery.

NAIADES: facts & figures
  • Consortium of 10 partners from six countries
  • Budget: € 6,500,000, € 700,000 of which for EnergyVille
An alternative and cheaper type of battery based on sodium is under development