This document describes a new type of battery that is safer and longer-lasting than current lithium-ion batteries. It works by using lithium metal instead of graphite as the anode, which increases energy density. However, lithium metal poses safety and lifespan issues. The new battery addresses this by using a solid electrolyte and protective metal layers that allow lithium to deposit smoothly instead of forming dendrites. This novel design could enable electric vehicles to drive 500 miles or more on a single charge.
