Developed electric vehicle batteries that can heat themselves and charge quickly despite the cold winter

One of the biggest obstacles to most electric vehicles has been successfully solved by US scientists thanks to the new electric vehicle battery that has self-heating ability to avoid degradation of charging performance and support fast charging in within 15 minutes.

Engineers at Pennsylvania State University have recently created a new battery that can avoid one of the main obstacles of electric cars as weather conditions. Accordingly, this battery model has the ability to heat itself and support fast charging despite the cold weather.

This battery is self-heating and supports fast charging despite the cold weather.

Like any other battery model, electric vehicle batteries (eV) can be affected by harsh climatic conditions, for example, cold weather. Previous studies by the US Department of Energy show that weather can affect the charging process for electric vehicles by up to 25%, thereby reducing the travel distance of vehicles from 128 km to less than 100km. .

However, with the latest batteries from US researchers, they can heat themselves to avoid the effects of cold weather, especially support fast charging for 15 minutes regardless of different temperature levels, even even outdoor is -43 degrees C.

The new battery is full of positive and negative poles like regular batteries. However, scientists put a thin nickel leaf with one end on the cathode and the other end attached to the third pole. When the temperature sensor attached to the battery detects that the temperature in the room is lower, it will transmit electrons through the nickel leaf. This process will help heat the battery to balance the surrounding environment.

When the sensor detects that the battery is above room temperature, it is a sign that the battery is rechargeable. As a result, the charging current running into the battery will achieve maximum efficiency.

The new battery is full of positive and negative poles like regular batteries.

As you know, battery charging performance will deteriorate over time, in which conventional batteries will lose about 20% of their original battery capacity after only about 50 charge cycles.

But in tests with about 4,500 quick-charge cycles of 15 minutes at a temperature of 0 degrees Celsius with this battery, the battery level is only about 20%. If converted to performance on an electric vehicle, it will be impressive because that capacity is enough to provide a travel distance of up to 450 thousand kilometers.

Chao-Yang Wang, director of the University's Center for Electrochemical Motors. Pennsylvania states: 'Quick charging methods at all times will allow manufacturers to use smaller, lighter and safer batteries in the car'.

Researchers are expected to commercialize this type of battery in the near future to promote the use of electric vehicles to protect the environment.