The electric vehicle industry is rapidly advancing, driven by the need for sustainable transportation solutions. One crucial factor that contributes to the development of this industry is the utilization of rare earth magnetic materials. These materials offer unique properties that are essential for the functioning of electric vehicles.
Rare earth magnetic materials, such as neodymium-iron-boron (NdFeB) magnets, have become a key component in electric vehicle technology. These magnets possess exceptionally high magnetism, allowing for efficient and compact electric motors. Their strong magnetic properties enable better torque and power density, resulting in improved performance and increased energy efficiency in electric vehicles.
Furthermore, the lightweight nature of rare earth magnets contributes to the overall weight reduction of electric vehicles. Reduced weight enhances the vehicle's driving range and battery life, making it more practical for everyday use. Additionally, the compact size of these magnets enables designers to optimize the layout and packaging of electric drivetrains, leading to improved vehicle design and aerodynamics.
The utilization of rare earth magnetic materials has revolutionized the electric vehicle industry. However, it is worth noting that the production of these materials can be challenging and environmentally impactful. The extraction and refinement processes involve complex procedures with potential environmental risks. Therefore, it is crucial to explore sustainable methods and technologies for the production of rare earth magnetic materials to minimize their ecological footprint.
Permanent Magnet material-NdFeB
ND-FE-B (ND-FE-B) permanent magnet with ND2FE14B as main component has the characteristics of high remanence and high coercive force. Each new energy vehicle needs about 2.5 kg of NDFEB permanent magnet material, mainly used to drive motors, ABS, EPS and other parts. The material has excellent performance, can greatly improve motor energy efficiency, reduce energy loss. In addition, the car speaker and a variety of sensors are also iron iron boron permanent magnet materials applied to the new energy vehicle scene.
Permanent magnet material-ferrite
The ferrite permanent magnet material is made of SRO or Bao and FE2O3 by ceramic technology. Compared with rare earth permanent magnet materials, although ferrite permanent magnet materials are not superior in performance, however, it is still the preferred material in many fields because of its abundant raw materials, low price, simple preparation process, excellent oxidation resistance and high residual magnetization. In the new energy vehicle is mainly used in driving motor, converter, charging pile and other components.
Soft magnetic material-silicon steel
Silicon Steel is an iron-silicon alloy formed by adding a small amount of silicon (generally less than 4.5%) into pure iron. It has excellent electromagnetic properties such as high permeability, low hysteresis loss and low iron loss. Silicon Steel is one of the important materials of motor in new energy vehicle, which can effectively reduce the iron loss and hysteresis loss of motor and improve the efficiency and performance of motor. In addition to motors, silicon steel can also be used in new energy vehicle charging piles, battery management systems, body structure, etc. .
Soft magnetic material-metal soft magnetic powder core
Metal soft magnetic powder core is a kind of soft magnetic material, which is made of magnetic powder covered by insulating medium. It combines the advantages of metal soft magnetic material and soft magnetic ferrite, high saturation magnetic induction and high resistivity due to the presence of an insulating layer. It is mainly used in three application fields: charging pile, on-board AC/DC Charger and on-board DC/DC converter. Especially under the trend of 800V high-pressure platform, metal soft magnetic powder core will benefit more, the consumption of bicycle is expected to increase from about 0.7 kg to 2.7 kg.
Soft magnetic material-ferrite
Soft ferrites are ferromagnetic oxides composed mainly of FE _ 2O _ 3, which are produced by Powder metallurgy method. There are Mn-Zn, Cu-Zn, Ni-Zn and so on. Among them, MN-ZN ferrite has the largest yield and dosage. Soft ferrite is a kind of electronic functional material with excellent high frequency electrical properties, low cost and easy to be processed into different shape and size products, widely used in New Energy Vehicle OBC equipment, EV charging equipment, HEV power system power conversion, DC-DC converter, battery management systems, Power distribution unit, etc. .
In conclusion, the development of the electric vehicle industry heavily relies on the utilization of rare earth magnetic materials. These materials greatly enhance the performance, efficiency, and design of electric vehicles. As the demand for electric vehicles continues to grow, it becomes imperative to prioritize sustainable production methods to ensure the long-term viability of the electric vehicle industry. The use of rare earth magnetic materials highlights the industry's commitment to innovation and sustainability in the pursuit of a cleaner and greener future.