How does the new energy battery dissipate heat?

Power battery is an important core component of new energy vehicles, which is not only expensive, determines the cost of new energy vehicles, but also determines the driving range of new energy vehicles, affecting the feelings of consumers.

The power battery used by new energy vehicles is a rechargeable chemical battery, and its charging and discharging process is actually a chemical reaction process, so the power battery will release a certain amount of heat with the intensity of the chemical reaction during the charging and discharging process. We know that the negative electrode, electrolyte and battery separator inside the power battery will burn, and the ignition point of the electrolyte is very low, therefore, if the huge power battery pack of new energy vehicles does not do a good job of thermal management, it is not only easy to cause battery damage, but also very easy to cause combustion accidents.

The power battery pack is composed of a large number of cells. When producing power batteries, battery manufacturers often use the characteristics of batteries to dissipate heat, such as the large gap between cylindrical batteries and the large surface area of square batteries. In addition, the manufacturer will also use the following ways to heat the power battery.

1. Natural heat dissipation

It is the use of high thermal conductivity materials made of heat dissipation device, connected to the power battery pack, to take away the heat generated when the battery is working, and naturally distributed to the air. This way of heat dissipation is relatively passive, and the heat dissipation effect is not very good, but the cost is lower.

2. Air cooling heat dissipation

On the basis of natural heat dissipation, a fan with a heat sink is installed to increase the heat dissipation area and air flow speed, so that the heat inside the power battery pack can be quickly distributed.

3. Liquid cooling heat dissipation

It is to install a set of liquid cooled radiator in the power battery pack and form a loop. After the heat generated by the battery is transferred to the liquid in the radiator, the liquid generates convection due to heat transfer, so that the liquid can flow itself in the loop, thus carrying heat.

Lori is a leading technology company specializing in the research, development, and production of heat dissipation products. We offer comprehensive thermal solutions to meet all your cooling needs. Contact us today to resolve your cooling challenges with our expert solutions.

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