A Graphene Breakthrough Could Make EV Batteries Last Longer and Store More Energy

Researchers developed a graphene-coated silicon nanoparticle anode that dramatically improves lithium-ion battery performance. By growing multilayer graphene directly on silicon without forming insulating silicon carbide, the design lets graphene layers slide during charging, absorbing silicon’s huge expansion. The result: batteries with up to 1.8× higher energy density and strong performance over 200 cycles.