for standard graphite anode

"They first ran a particle-scale theoretical model to optimize the spatial distribution of particles of different sizes and electrode porosity. Then they used what they learned from the model to make changes to a standard graphite anode. They coated the anode with copper and then added copper nanowires to the slurry. The anode was then heated and then cooled, compressing the slurry into a larger volume." TechXplore said.
After upgrading the anode, the researchers connected it to a standard lithium-ion battery to measure the time it took to recharge. They were surprised to find that they could charge the battery to 60 percent in 5.6 minutes and 80 percent in 11.4 minutes. (Researchers avoid testing the time required to charge to 100 percent because doing so will damage the battery.)
The researchers did not specify how much the battery would cost or when it would be produced. Still, the development is exciting for electric vehicles around the world.
The study was published in the journal Science Advances.
Abstract:
Extremely fast-charging lithium-ion batteries are ideal for shortening the charging time of electric vehicles, but the low-rate capability of graphite anodes hinders this. Here, we propose a previously unreported dual gradient structure design of graphite anode particle size and electrode porosity to achieve extremely fast charging of lithium-ion batteries under strict electrode conditions. We developed a polymer binder-free slurry route to build this previously unreported particle size-porosity double gradient structure in actual graphite anodes, showing an extremely fast charge capacity of 60% in 10 minutes. Based on a dual-gradient graphite anode, we demonstrated an extremely fast charging lithium-ion battery that can achieve 60% charging in 6 minutes and achieve a volumetric energy density of up to 701 Wh -1 at a high charging rate of 6C.