How Batteries Live Long in Electric Vehicles

Batteries are a major topic of discussion in electric mobility. Energy storage, for instance, significantly determines the performance, range, charging time and maintenance of an electric vehicle. The temperature of the battery plays a major role in this.

So what effect does a battery’s thermal stress have on these criteria?

The even temperature of all individual cells in the battery pack is an essential step in the cells having an equal life span.

Let’s look at an example: battery packs with an internal liquid cooling system. The specification comes from a major car manufacturer. We at NORMA Group’s Research & Development team were able to identify requirements crucial for the design of tubing systems inside liquid-cooled batteries.

The Cooling System Is Also For Heating

But first thing’s first. A battery’s cooling system is not just for cooling, but also for heating. If you want to access an electric vehicle’s full power from a cold start in the winter, the battery must be preconditioned. This means that the cells must have a minimum temperature.

This is achieved by electrically heating the battery’s coolant – while the cold vehicle is being charged from the mains. If the warm-up isn’t done in advance, the vehicle’s electronic power will reduce itself to spare the battery from damage.