What is a new energy vehicle battery module? What is the function of a new energy vehicle battery module?

The battery module of new energy vehicles is a key component of the power battery system of electric vehicles. It combines multiple battery cells (battery cells) in series and parallel to form an energy storage unit with a certain voltage and capacity. The design and manufacture of battery modules have a significant impact on the performance, safety and service life of electric vehicles.

Definition of new energy vehicle battery module

A battery module is usually composed of several battery cells, conductive connectors, a module control unit (BMS slave board), a plastic frame, a cold plate, cooling pipes, pressure plates at both ends, and fasteners. These components work together to achieve effective management and protection of the battery cells. The module is designed to provide convenient battery cell management for the battery management system (BMS), improve battery safety, and facilitate maintenance and repair.

The role of new energy vehicle battery modules

1. Improve energy density and power density: Through reasonable design and layout, the battery module can maximize the energy density and power density of the battery to meet the power requirements of electric vehicles.

2. Battery cell management: The BMS slave board in the battery module is responsible for monitoring and managing the status of the battery cells, including parameters such as voltage, current, and temperature, to ensure that the battery operates in a safe and efficient state.

3. Structural support and protection: The structural design of the battery module must support and fix the battery cells to prevent them from being damaged by vibration or impact. At the same time, the module shell and internal insulation materials can protect the battery cells from the external environment.

4. Thermal management: The cooling pipes and cold plates inside the battery module help dissipate the heat generated by the battery cells, maintain the battery within an appropriate temperature range, and prevent performance degradation or safety problems caused by overheating.

5. Fault handling capability: When the battery module encounters serious abnormalities, such as overcharging, over-discharging, short circuit, etc., the BMS can take timely measures, such as power-off protection, to prevent the fault from spreading to the entire battery system.

6. Maintenance and repair: The design of the battery module takes into account the convenience of maintenance and repair. When a problem occurs in the battery system, the problem module can be quickly located and replaced or repaired, reducing the maintenance cost and time of the overall battery system.

7. Improve production efficiency: The standardized and modular design of battery modules helps to improve the automation level of the production line, reduce manual operations, and improve production efficiency and consistency.

8. Promote the scalability of the battery system: Battery modules can be flexibly combined into battery packs of different sizes and shapes according to the design requirements of electric vehicles to meet the needs of different vehicle models and driving ranges.

in conclusion

The battery module of new energy vehicles is a bridge connecting the battery cells and the entire battery system. It not only improves the energy density and power density of the battery system, but also realizes the effective management and protection of the battery cells through the BMS. The structural design, thermal management and fault handling capabilities of the battery module are crucial to ensure the safe operation of electric vehicles. With the continuous advancement of electric vehicle technology, the design and manufacturing of battery modules will also be continuously optimized to meet the market demand for high-performance, high-safety and long-life battery systems.