Fast charging will make electric car batteries faster 'diaper'

But it turns out that, according to the scientists, continuous use of fast charging points with high capacity can reduce the life cycle of electric car batteries.

Specifically, engineers from the University of California, Riverside (UCR) say commercial fast charging stations will force electric car batteries to operate at high temperatures and resistances, which can cause battery cells to crack or leak. , and gradually losing storage space.

To test their claims, the team of engineers and scientists charged a Panasonic cylindrical lithium-ion battery cell (similar to Tesla's battery cells) in the same manner as public fast charging stations. on the road today.

The researchers also charged a set of batteries using a new algorithm-based protocol, which charges the battery as quickly as possible but takes into account the internal resistance of the battery.

According to the engineers, the high internal resistance of the battery can cause problems when charging. If they are not reviewed and resolved, the battery cells may be permanently damaged.

To prevent potential damage, the UCR charging method will automatically disconnect when the internal resistance goes up too high. In theory, this would limit the damage caused to the battery cells.

Battery before and after 60 cycles of charging by new and traditional methods

Battery life is significantly reduced

With the industry standard charging process, the battery capacity will be reduced to 40% after 40 charging cycles. However, with the method of charging based on internal resistance, the battery capacity will only decrease by about 20% after charging to the 40th cycle only.

According to the researchers, the standard procedure will kill the battery after 25 charging cycles . An electric car battery is considered to have reached the end of its life when it only holds 80% less than its original capacity.

After 60 charging cycles in accordance with industry standard processes, the battery cells begin to crack, revealing internal components. In more severe cases, these signs are more than enough to cause an explosion.

If you are driving an electric car and are interested in fast charging, there are a few things you can do to ensure vehicle battery safety.

Specifically, it is advisable to minimize the use of commercial fast charging stations, car chargers before the battery is completely depleted, and do not over charge as necessary.

In practical use, most people rarely charge their electric cars from 0 to 100%. But doing that won't do you any good to think again!

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