Advanced Magnet Source: Revving Up the Green Transition and the Surge in Electric Vehicle Magnets

In a world undergoing a rapid shift towards a greener economy, magnets emerge as unsung heroes, playing a pivotal role in the magnetic revolution. A recent article, “Magnets, magnets, magnets: we’ll need lots of them for a green economy,” delves into the crucial role of magnets, especially in the context of the booming electric vehicle (EV) market.

Global sales of electric cars, including fully battery-powered, fuel cell, and plug-in hybrids, soared to an all-time high of 6.6 million in 2021. The surge is projected to continue, with expectations of annual global sales reaching 65 million electric vehicles by 2030. This momentum contrasts sharply with declining sales of vehicles with internal combustion engines, highlighting the pivotal role of EVs in the future automotive landscape.

A key insight from the article emphasizes that each new electric vehicle requires at least one high-power electric motor. Approximately 85% of these vehicles currently utilize motors with permanent magnets (PMs) due to their efficiency, with some achieving a remarkable 98.8% efficiency. The role of PMs is critical, and their efficiency surpasses that of Alternating Current (AC) induction motors and generators by 4–8%. The article underlines that these non-PM motors are ideal for specific applications like trucks, ships, and wind-turbine generators.

As the demand for magnets intensifies in the green economy, the industry stands at the forefront, contributing to the advancement of electric vehicle technology. The combination of PMs and electromagnetic approaches, as seen in designs by companies like Tesla Motors, showcases the ongoing optimization of performance and range.

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