Author: Vanessa 28 Feb. 2025 Category: Applications
With the advancement of the global carbon neutrality goal, electric vehicles have ushered in explosive growth. According to statistics, global electric vehicle sales will exceed 10 million in 2023, with China accounting for more than 60% of the market. Under this wave, the core links such as battery manufacturing and motor production have increasingly stringent requirements on the production environment, and filtration technology, as an “invisible guard” to ensure product quality, is providing key support for the high-quality development of the electric vehicles industry.
1. Battery manufacturing: “filtration battlefield” in clean workshops
The power battery is the “heart” of electric vehicles, and the cleanliness requirements in its production process are almost harsh. Even micron-sized dust particles mixed into the battery may cause safety hazards such as short circuits and spontaneous combustion. Therefore, every process of battery production cannot be separated from the support of high-efficiency filtration technology.
Core applications of filtration technology
- 1. Electrode coating: During the coating process of positive and negative electrode materials, suspended particles in the air may adhere to the surface of the electrode, affecting the consistency of the battery. Through the multi-stage filtration system of HEPA (high-efficiency air filter) and ULPA (ultra-high-efficiency air filter), the air cleanliness in the workshop can reach ISO 5 level (≤100 particles per cubic meter), ensuring that the surface of the electrode is smooth and flawless.
- 2. Electrolyte injection: The electrolyte is extremely sensitive to moisture and impurities. The use of molecular sieve filters and dry air systems can control the ambient humidity below 1%, and remove volatile organic compounds (VOCs) in the air to prevent electrolyte deterioration.
- 3. Battery packaging: Metal dust is the enemy of battery packaging. The combined application of magnetic filters and electrostatic adsorption equipment can effectively capture metal debris and avoid failure of battery shell sealing.
2. Motor production:
dust control and performance guarantee The drive motor is the “muscle” of electric vehicles, and the production accuracy of its core components (such as stators and rotors) directly affects the efficiency and life of the motor. However, pollutants such as metal dust and oil mist generated during the motor production process may cause problems such as bearing wear and insulation failure.
Core applications of filtration technology
- 1. Metal processing dust control: In the process of stator stamping and rotor turning, a combination of cyclone separator + bag filter is used to capture 99.9% of metal dust, and the workshop air quality reaches the international standard of PM2.5<10μg/m³.
- 2. Insulation coating protection: The insulation paint spraying of motor windings must be carried out in a dust-free environment. Through FFU (fan filter unit) and laminar air supply system, a local clean area is formed to avoid defects such as pinholes and bubbles in the coating.
- 3. Oil mist recycling: The cutting oil mist generated on the motor assembly line can achieve an oil recovery rate of over 95% after being treated by a centrifugal oil mist filtration system, which is both environmentally friendly and cost-saving.
Filtration technology-the “quality cornerstone” of the electric vehicles era From the microscopic world of batteries to the precision workshop of motors, filtration technology has always been an indispensable “gatekeeper” in the electric vehicles industry. With the popularity of electric vehicles and the iteration of technology, efficient, intelligent and green filtration solutions will become the key elements of corporate competitiveness.
If you are looking for a filtration technology partner in the electric vehicles field, please contact Trenntech! From battery clean workshops to motor dust control, we provide full industry chain filtration solutions to protect your product quality!