New technology promises even more autonomy for electric vehicles. All thanks to a graphene -based filter blocks sulfur chains.
A team of scientists has just presented a graphene filter blocks sulfur chains in lithium-lithium batteries, keeping the energy stable for more than 150 cycles.
This happens due to an Fillter with only one atom of thickness which prevents sulfur chains from clogging the battery.
“It’s like a microscopic coffee filter or a doorman in a disco. Lithium -lithium ions pass easily, but bulky sulfur chains are blocked,” explained Professor Piran Kidaambi.
The authors of the published in ACS Applied Materials and Interfaces performed tests and the conclusion was undeniable: the batteries with the ultra -thin filter kept almost all their capacity for more than 150 load and download cycles. “They had a very good performance,” said Kidambi. “The others were losing performance with each cycle, but ours with the filter remained stable.”
One of the news that could be introduced in practice is that electric vehicles, especially trucks, trains and ships, could carry more energy without adding too much weight, the authors explain.
“As it is from cars to trucks, trains or ships, the weight of the battery increases exponentially because more energy is needed to move them,” Kidambi explained. “This is called weight accumulation effect. The battery begins to weigh almost as much as the charge that should carry.”
“There is a real scientific success in showing that we have been able to solve a problem, and solve it through atomic engineering,” he says. “This is exciting.”
