We know that electrified vehicles are the future of mobility, but there is a problem that prevents them from being a cheaper product: batteries. However, a group of scientists has found a more than interesting solution for what is presented as a multifunctional battery, as it makes our electric cars ready in a matter of 10 minutes. But what is its technology about?
An extremely fast charging system
The battery is the most important element of an electric car, it is what allows it to work. But it is very expensive, because it is made with minerals such as cobalt, lithium, graphite and rare earths that, in addition to being expensive, are finite.
It is estimated that the world’s reserves of those minerals needed to make electric car batteries could be depleted by 2032, according to the German Economics Institute (Institut der Deutschen Wirtschaft’).
For this reason, and in what is the search for a solution to this problem and an extremely fast charging system, scientists from the Pennsylvania State University have just successfully completed their tests of a cell in a new format that was capable of overcoming 500 charge and discharge cycles and fulfilling a full charge in less than 10 minutes . Indeed, with what is a new cell for electric car batteries, it has managed to maintain an energy capacity greater than 260 Wh/kg after 500 charge cycles and using a new extremely fast charging system.
What is it about
The project aimed to achieve a battery cell that maintains at least 180 Wh/kg by undergoing a new fast-charging system in 10 minutes. And indeed, scientists at the University of Pennsylvania have succeeded.
So what they have developed is a cell that uses the nickel foil heating element to accommodate faster charging times, with the latest version of the battery featuring an energy density of 265Wh/kg .
Thus, this is remarkably referred to as a step up from the previous version’s 209 Wh/kg. This energy density and short charging time are described as an unprecedented combination and could open up some exciting possibilities in electric vehicle design, according to the team of researchers.
“The need for smaller, faster-charging batteries is greater than ever,” said Professor Chao-Yang Wang of Pennsylvania State University, who is leading the research.
They also reduce your cost and the use of raw materials
In this way, electric cars would, with this type of battery, approach the objective that they have been pursuing, which is none other than being very close to the times of a gas station . And this technology seems to be one of the indicated ones.
Thus, the advance focuses on a novel method that regulates the temperature of the battery , which is necessary to optimize charging time and performance. Until now, this has involved external heating and cooling systems that are inefficient and waste energy.
Thus, they can be called regular batteries for electric cars, which have three components: an anode, an electrolyte and a cathode that integrates the temperature regulation system, which is this ultrathin layer of nickel that we have mentioned (and that allows recharge time is 10 minutes).
“Our fast-charging technology works for most energy-dense batteries and will open up a new possibility of downsizing electric vehicle batteries from 150 to 50 kWh without driving range anxiety,” he said. Smaller, faster-charging batteries will dramatically reduce battery cost and the use of critical raw materials such as cobalt, graphite and lithium, enabling mass adoption of affordable electric cars.