Diamond has the following applications in new energy vehicles:

Ⅰ Battery Management:
① High-Precision Power Monitoring: Diamond quantum sensors can estimate the battery power with high accuracy (within 1%) when measuring the large currents in electric vehicles. Ordinary battery current sensors have difficulty accurately measuring minute current changes at the milliampere level, resulting in ambiguity in battery power estimation. However, diamond quantum sensors can precisely detect small current changes, thereby enabling more accurate monitoring of the battery power. This helps improve the utilization efficiency of the battery, extend the driving range of the electric vehicle, and accurately predict the remaining driving range of the electric vehicle.

② As Electrode Materials: Due to its excellent thermal conductivity and mechanical properties, diamond can be used as a battery electrode material. The use of diamond electrodes can improve the charging and discharging efficiency of the battery and extend its service life. Moreover, some companies have applied for patents for all-diamond capacitors for electric vehicles. Diamond capacitors can operate at high temperatures, reduce parasitic inductance, and provide solutions for the protection of passive components related to the battery.

Ⅱ In the field of power semiconductor devices:

Diamond features high thermal conductivity, high electron mobility and high breakdown field strength, etc., making it an ideal power semiconductor material. Power semiconductor devices based on diamond can achieve high-efficiency and high-power conversion and control of electrical energy. In electric vehicles, the use of diamond power semiconductor devices can be applied to components such as inverters and transformers, which helps to improve the energy conversion efficiency of electric vehicles, reduce power consumption and battery costs, and enhance the overall performance of electric vehicles.

Ⅲ Heat Dissipation Management:

① New Heat Dissipation Materials: The ultra-thin diamond film developed by the Fraunhofer Institute in Germany has excellent thermal conductivity and insulation properties. Applying this diamond film to the charging system or other electronic components of new energy vehicles can effectively reduce the thermal load of electronic components, significantly improve the service life of the charging system and the energy efficiency of the overall equipment. If it is applied to the charging system, it is expected to increase the charging speed of electric vehicles by five times.

② Heat Sink Materials: Diamond has a high thermal conductivity, which is five times that of copper and ten times that of aluminum. As a heat sink material, it can help dissipate heat from high-power components in new energy vehicles, such as IGBT modules, achieving more efficient heat dissipation and higher power density, and ensuring the normal operation of the vehicle.

Ⅳ In Terms of Automobile Component Machining:

① Tool Materials: Diamond tools (PCD) are fabricated by sintering polycrystalline diamond tips and cemented carbide substrates under high temperature and high pressure. They possess such advantages as high hardness, high sharpness, and good durability. In new energy vehicles, they can be used to machine components like motor housings, shaft parts, battery boxes, and differentials. They can not only take advantage of the properties of diamond but also take into account the high strength of cemented carbide, thus improving the machining quality and efficiency of automobile components and reducing production costs.

② Coating Materials: Diamond coatings feature extremely high hardness, good wear resistance, and an extremely low coefficient of friction. When applied to automobile components such as brake pads, clutch plates, and valves, they can enhance the wear resistance, impact resistance, and service life of the components. Meanwhile, they can reduce the coefficient of friction and cut down on energy consumption. In addition, they can be used to protect the vehicle’s surface from wear and corrosion, improve the vehicle’s appearance and service life, and even be utilized to manufacture lightweight vehicle body structures, thereby enhancing the vehicle’s energy efficiency and performance.

Ⅴ In the Field of Fuel Cells:

Diamond has high chemical stability and can remain stable under high-temperature and high-pressure environments. Therefore, it can be used as a catalyst in fuel cells to improve fuel utilization and reduce exhaust emissions.

Ⅵ In Terms of Motor Insulation:

Diamond has excellent electrical insulation properties, and diamonds with high purity have even better electrical insulation performance. When it is used as an insulating material inside the motor, it can improve the efficiency and reliability of the electrodes.

Contact

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