Slovenian scientists make breakthrough on rare earth technology: report

Slovenian scientists from the Jozef Stefan Institute (IJS) have made an important breakthrough on technology that will reduce dramatically the use of rare earth elements in key components of electric motors, local media reported on Thursday.

The breakthrough enables a 16-fold reduction in the use of rare earth elements in the production of high-energy magnets, the Slovenian Press Agency (STA) reported, adding this greatly reduces the costs of such magnets, which are essential components in electric vehicles and turbines.

The breakthrough was made as part of the EU-funded Romeo project, in which IJS scientists spent two years finding ways to reduce dependence on what are often referred to as "technology metals".

The IJS and seven other scientific institutions as well as a number of commercial partners concluded the project by producing magnets with minimal use of rare earth minerals.

A total of 550 such magnets were then installed in electric motors and turbines, according to the STA report.

The project was implemented with the help of commercial partners Siemens and Valeo as well as Slovenian automotive parts maker Kolektor, car maker Daimler and magnet producer Vacuumschmelze.

While relatively abundant in the earth, rare earth elements are costly to extract due to their relatively low concentrations per volume of earth extracted, making production viable only at extremely large scales.

Using just one-sixteenth of the current amount of this raw material in high-energy magnets will therefore represent an important progress in price efficiency of electric motors.

The IJS scientists went a step further, enabling production of a high-energy magnet without any rare earth elements, but Kobe said that implementing this technology would currently still be too expensive. Enditem