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Neodymium Iron Boron magnets in Electric Motor Vehicles 2023

In this article, we will discuss how Neodymium Iron Boron magnets are used in electric motor vehicles.

For the past few years, electric motor vehicles have become the preferred options for more and more consumers. Currently, 250 million electric motor cars are expected on the road.


Neodymium Iron Boron magnets in Electric Motor Vehicles

photo credit: Pixabay

A silent hero behind the development of electric motor vehicles is Neodymium Iron Boron magnet. They are known for their exceptional magnet strength and reliability.These factors allow many components of a vehicle become smaller and better-performance.


Advantages of Neodymium Iron Boron magnets

Neodymium Iron Boron magnets are known for their exceptionally strong magnetic properties.They could generate significant torque, enabling more efficient conversion of electrical energy into mechanical power.

Moreover, Neodymium Magnets are corrosion resistant.So you don’t replace them frequently, reducing maintenance costs and enhancing the overall reliability of electric motors.



Neodymium Iron Boron magnets often referred to as rare-earth magnets, because they are composed primarily of rare-earth elements,such as Neodymium, Iron, and Boron.They possess an extraordinary strength-to-weight ratio,creating more magnetic field lines in a smaller area.Their remarkable strength allows for more efficient energy conversion within electric motors.That means higher torque and increased overall efficiency of electric vehicles.Moreover,electric motors made with Neodymium magnets can be over 50% smaller than electric motors without magnets.


Power Steering

Electric power steering (EPS) systems use electric motors to assist the driver in turning the wheels, improving fuel efficiency and reducing carbon-emissions.

One of the advantages of neodymium magnets is to produce strong magnetic fields within a small volume. This characteristic enables the creation of compact yet high-torque electric motors,which are ideally suited for Electric power steering (EPS) systems. That is, neodymium magnets improve the performance of the steering assistance, providing the driver with a smoother and more responsive steering feel.


Battery Management

In the realm of battery management, longevity and reliability are paramount.

Efficient thermal management is crucial for extending battery life and ensuring safe operation. Neodymium magnets are used into cooling systems to secure cooling parts in place. This prevents shifting of cooling parts, leading to better temperature control.

Neodymium magnets enhance the mechanical integrity of battery management systems, minimizing the risk of loose connections. This application effectively reduces the maintenance requirements and extends the lifespan of the system.


Braking System

Regenerative braking is widely used in hybrid and electric vehicles. Regenerative braking harnesses the kinetic energy lost during braking and converts it into electrical energy, which can be stored in the vehicle’s battery. Neodymium magnets play a crucial role in the regenerative braking, contributing to the efficiency and effectiveness of this energy recovery process.

Neodymium magnets are also employed in electromagnetic braking systems, which offer precise control over braking force. These systems are particularly valuable in industrial and heavy machinery applications. By using neodymium magnets in conjunction with electromagnetic coils, braking force can be finely tuned, leading to smoother and more controlled deceleration.

pixabay 1

photo credit: Pixabay



A powertrain is a collective term for the components that generate and transmit power within a vehicle or machinery. It encompasses engines, transmissions, and associated systems. Neodymium magnets have found a significant role within powertrains.

They enable powertrains to operate at higher efficiencies due to their ability to generate strong magnetic fields with minimal energy loss.They also contribute to higher power output and torque density, leading to improved overall performance in various applications.The increased efficiency of powertrains reduces energy consumption , particularly in electric vehicles.



The automotive industry is transitioning toward cleaner solutions.Neodymium magnets have already enhanced the efficiency, performance, and driving experiences of electric motor vehicles. As time goes by, Neodymium magnets will continue to shape a cleaner transportation.

whether you know exactly which types of magnet you need or are not sure now, Tengye is always here to help.Fill out the form and work with our experts to solve the problems you are facing now.


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Jonah Jin

Jonah Jin
Managing Director

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