The researchers recalled that almost five years ago, Honda announced the development of the world’s first rare earth-free deformed magnet. This was considered an important breakthrough for the industry at the time, as it meant Honda would be able to produce electric motors without heavy rare earth metals like dysprosium or terbium.
German auto parts supplier Mahle has now announced its first ever electric motor without magnets. It is now in the final stages of development, and its most important characteristic is that it does not require rare earth elements. Mahle argues that this technological breakthrough not only makes production more environmentally friendly but also offers cost and resource safety benefits.
“With our new electric motor we are becoming a sustainable company,” says Michael Frick, CEO of Mahle. “The rejection of magnets and, consequently, the use of rare earth elements opens up great prospects not only from a geopolitical point of view, but also from the point of view of the responsible use of nature and resources.”
In addition to being more environmentally friendly, the new Mahle electric motor is also highly efficient. The company claims that the magneticless motor achieves an efficiency of about 95% in virtually all operating conditions. These are the levels of efficiency that only Formula E cars previously achieved.
Mahle also promises high durability thanks to the contactless transmission of electrical current between rotating and stationary parts inside the motor. Basically, this means that the electric motor is maintenance-free and suitable for a wide range of applications.
“Our non-magnetic motor can certainly be called a breakthrough because it provides several benefits that have not yet been combined in a product of this type. As a result, we can offer our customers a product with outstanding performance at a relatively low price, ”the company noted.