Lithium metal batteries are a type of rechargeable battery that uses lithium metal as the anode, offering potentially significant improvements in energy density and charging speed compared to traditional lithium-ion batteries. As the tech industry continues to push for more efficient and longer-lasting power sources, lithium metal batteries are gaining attention for their potential to enable faster-charging and longer-lasting devices, making them a promising development in the field of energy storage and a key area of research for manufacturers and tech companies.