Cooling principle of automobile energy storage battery

Why do EV batteries need cooling?

Effective battery cooling measures are employed to efficiently dissipate excess heat and safeguard both the charging rate and the battery from potential overheating issues. Furthermore, EV batteries may require heating mechanisms, primarily when exposed to extremely low temperatures or to enhance performance capabilities.

Why is battery cooling important?

Battery cooling systems, integral to BTMS, are essential for maintaining optimal performance, extending battery lifespan, and ensuring uniform temperature distribution within battery packs. An efficient BTMS is designed to keep battery temperatures within a desired range, thereby enhancing performance.

Why do automakers use battery cooling methods?

Safety risks – Extreme overheating can cause thermal runaway, potentially leading to fire hazards. To address these concerns, automakers use battery cooling methods to regulate battery temperature, ensuring optimal performance and safety. Types of Battery Cooling Methods 1. Air Cooling

What is battery cooling?

Battery cooling is part of the vehicle's Battery Thermal Management System (BTMS). The BTMS includes the cooling and heating module, as well as the operating strategy, control system and thermal management software.

How is a car battery cooled?

The battery is cooled by one or more cooling plates through which the coolant flows. The coolant heats up and transfers the heat to another fluid in a heat exchanger. At low ambient temperatures and low cooling capacity, the heat can be transferred to the ambient air via an ambient heat exchanger in the front end of the vehicle.

Why is air used for cooling of battery modules arranged in series?

When air is used for cooling of battery modules arranged in series, the middle and rear portion of batteries are at high temperature to the low heat capacity of air. The temperature of the battery pack near the outlet is very high and the temperature distribution is highly non-uniform.